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-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_drawpixels.c2858
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_fbo.c2
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_texture.c155
-rw-r--r--mesalib/src/mesa/state_tracker/st_draw.c1500
-rw-r--r--mesalib/src/mesa/state_tracker/st_extensions.c967
5 files changed, 2722 insertions, 2760 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index 07527002b..2c4746622 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1,1371 +1,1487 @@
-/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
- /*
- * Authors:
- * Brian Paul
- */
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/bufferobj.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "main/mtypes.h"
-#include "main/pack.h"
-#include "main/texformat.h"
-#include "main/texstore.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-#include "program/prog_instruction.h"
-
-#include "st_atom.h"
-#include "st_atom_constbuf.h"
-#include "st_cb_drawpixels.h"
-#include "st_cb_readpixels.h"
-#include "st_cb_fbo.h"
-#include "st_context.h"
-#include "st_debug.h"
-#include "st_format.h"
-#include "st_program.h"
-#include "st_texture.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "tgsi/tgsi_ureg.h"
-#include "util/u_draw_quad.h"
-#include "util/u_format.h"
-#include "util/u_inlines.h"
-#include "util/u_math.h"
-#include "util/u_tile.h"
-#include "cso_cache/cso_context.h"
-
-
-#if FEATURE_drawpix
-
-/**
- * Check if the given program is:
- * 0: MOVE result.color, fragment.color;
- * 1: END;
- */
-static GLboolean
-is_passthrough_program(const struct gl_fragment_program *prog)
-{
- if (prog->Base.NumInstructions == 2) {
- const struct prog_instruction *inst = prog->Base.Instructions;
- if (inst[0].Opcode == OPCODE_MOV &&
- inst[1].Opcode == OPCODE_END &&
- inst[0].DstReg.File == PROGRAM_OUTPUT &&
- inst[0].DstReg.Index == FRAG_RESULT_COLOR &&
- inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&
- inst[0].SrcReg[0].File == PROGRAM_INPUT &&
- inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&
- inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {
- return GL_TRUE;
- }
- }
- return GL_FALSE;
-}
-
-
-
-/**
- * Make fragment shader for glDraw/CopyPixels. This shader is made
- * by combining the pixel transfer shader with the user-defined shader.
- * \param fpIn the current/incoming fragment program
- * \param fpOut returns the combined fragment program
- */
-void
-st_make_drawpix_fragment_program(struct st_context *st,
- struct gl_fragment_program *fpIn,
- struct gl_fragment_program **fpOut)
-{
- struct gl_program *newProg;
-
- if (is_passthrough_program(fpIn)) {
- newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,
- &st->pixel_xfer.program->Base);
- }
- else {
-#if 0
- /* debug */
- printf("Base program:\n");
- _mesa_print_program(&fpIn->Base);
- printf("DrawPix program:\n");
- _mesa_print_program(&st->pixel_xfer.program->Base.Base);
-#endif
- newProg = _mesa_combine_programs(st->ctx,
- &st->pixel_xfer.program->Base.Base,
- &fpIn->Base);
- }
-
-#if 0
- /* debug */
- printf("Combined DrawPixels program:\n");
- _mesa_print_program(newProg);
- printf("InputsRead: 0x%x\n", newProg->InputsRead);
- printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
- _mesa_print_parameter_list(newProg->Parameters);
-#endif
-
- *fpOut = (struct gl_fragment_program *) newProg;
-}
-
-
-/**
- * Create fragment program that does a TEX() instruction to get a Z and/or
- * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.
- * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).
- * Pass fragment color through as-is.
- * \return pointer to the gl_fragment program
- */
-struct gl_fragment_program *
-st_make_drawpix_z_stencil_program(struct st_context *st,
- GLboolean write_depth,
- GLboolean write_stencil)
-{
- struct gl_context *ctx = st->ctx;
- struct gl_program *p;
- struct gl_fragment_program *fp;
- GLuint ic = 0;
- const GLuint shaderIndex = write_depth * 2 + write_stencil;
-
- assert(shaderIndex < Elements(st->drawpix.shaders));
-
- if (st->drawpix.shaders[shaderIndex]) {
- /* already have the proper shader */
- return st->drawpix.shaders[shaderIndex];
- }
-
- /*
- * Create shader now
- */
- p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
- if (!p)
- return NULL;
-
- p->NumInstructions = write_depth ? 2 : 1;
- p->NumInstructions += write_stencil ? 1 : 0;
-
- p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
- if (!p->Instructions) {
- ctx->Driver.DeleteProgram(ctx, p);
- return NULL;
- }
- _mesa_init_instructions(p->Instructions, p->NumInstructions);
-
- if (write_depth) {
- /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
- p->Instructions[ic].Opcode = OPCODE_TEX;
- p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
- p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
- p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
- p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
- p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
- p->Instructions[ic].TexSrcUnit = 0;
- p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
- }
-
- if (write_stencil) {
- /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */
- p->Instructions[ic].Opcode = OPCODE_TEX;
- p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
- p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;
- p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;
- p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
- p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
- p->Instructions[ic].TexSrcUnit = 1;
- p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
- }
-
- /* END; */
- p->Instructions[ic++].Opcode = OPCODE_END;
-
- assert(ic == p->NumInstructions);
-
- p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;
- p->OutputsWritten = 0;
- if (write_depth)
- p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH);
- if (write_stencil)
- p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL);
-
- p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
- if (write_stencil)
- p->SamplersUsed |= 1 << 1;
-
- fp = (struct gl_fragment_program *) p;
-
- /* save the new shader */
- st->drawpix.shaders[shaderIndex] = fp;
-
- return fp;
-}
-
-
-/**
- * Create a simple vertex shader that just passes through the
- * vertex position and texcoord (and optionally, color).
- */
-static void *
-make_passthrough_vertex_shader(struct st_context *st,
- GLboolean passColor)
-{
- if (!st->drawpix.vert_shaders[passColor]) {
- struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
-
- if (ureg == NULL)
- return NULL;
-
- /* MOV result.pos, vertex.pos; */
- ureg_MOV(ureg,
- ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ),
- ureg_DECL_vs_input( ureg, 0 ));
-
- /* MOV result.texcoord0, vertex.attr[1]; */
- ureg_MOV(ureg,
- ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
- ureg_DECL_vs_input( ureg, 1 ));
-
- if (passColor) {
- /* MOV result.color0, vertex.attr[2]; */
- ureg_MOV(ureg,
- ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ),
- ureg_DECL_vs_input( ureg, 2 ));
- }
-
- ureg_END( ureg );
-
- st->drawpix.vert_shaders[passColor] =
- ureg_create_shader_and_destroy( ureg, st->pipe );
- }
-
- return st->drawpix.vert_shaders[passColor];
-}
-
-
-/**
- * Return a texture base format for drawing/copying an image
- * of the given format.
- */
-static GLenum
-base_format(GLenum format)
-{
- switch (format) {
- case GL_DEPTH_COMPONENT:
- return GL_DEPTH_COMPONENT;
- case GL_DEPTH_STENCIL:
- return GL_DEPTH_STENCIL;
- case GL_STENCIL_INDEX:
- return GL_STENCIL_INDEX;
- default:
- return GL_RGBA;
- }
-}
-
-
-/**
- * Return a texture internalFormat for drawing/copying an image
- * of the given format and type.
- */
-static GLenum
-internal_format(GLenum format, GLenum type)
-{
- switch (format) {
- case GL_DEPTH_COMPONENT:
- return GL_DEPTH_COMPONENT;
- case GL_DEPTH_STENCIL:
- return GL_DEPTH_STENCIL;
- case GL_STENCIL_INDEX:
- return GL_STENCIL_INDEX;
- default:
- if (_mesa_is_integer_format(format)) {
- switch (type) {
- case GL_BYTE:
- return GL_RGBA8I;
- case GL_UNSIGNED_BYTE:
- return GL_RGBA8UI;
- case GL_SHORT:
- return GL_RGBA16I;
- case GL_UNSIGNED_SHORT:
- return GL_RGBA16UI;
- case GL_INT:
- return GL_RGBA32I;
- case GL_UNSIGNED_INT:
- return GL_RGBA32UI;
- default:
- assert(0 && "Unexpected type in internal_format()");
- return GL_RGBA_INTEGER;
- }
- }
- else {
- return GL_RGBA;
- }
- }
-}
-
-
-/**
- * Create a temporary texture to hold an image of the given size.
- * If width, height are not POT and the driver only handles POT textures,
- * allocate the next larger size of texture that is POT.
- */
-static struct pipe_resource *
-alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
- enum pipe_format texFormat)
-{
- struct pipe_resource *pt;
-
- pt = st_texture_create(st, st->internal_target, texFormat, 0,
- width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
-
- return pt;
-}
-
-
-/**
- * Make texture containing an image for glDrawPixels image.
- * If 'pixels' is NULL, leave the texture image data undefined.
- */
-static struct pipe_resource *
-make_texture(struct st_context *st,
- GLsizei width, GLsizei height, GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels)
-{
- struct gl_context *ctx = st->ctx;
- struct pipe_context *pipe = st->pipe;
- gl_format mformat;
- struct pipe_resource *pt;
- enum pipe_format pipeFormat;
- GLuint cpp;
- GLenum baseFormat, intFormat;
-
- baseFormat = base_format(format);
- intFormat = internal_format(format, type);
-
- mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,
- format, type, GL_FALSE);
- assert(mformat);
-
- pipeFormat = st_mesa_format_to_pipe_format(mformat);
- assert(pipeFormat);
- cpp = util_format_get_blocksize(pipeFormat);
-
- pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
- if (!pixels)
- return NULL;
-
- /* alloc temporary texture */
- pt = alloc_texture(st, width, height, pipeFormat);
- if (!pt) {
- _mesa_unmap_pbo_source(ctx, unpack);
- return NULL;
- }
-
- {
- struct pipe_transfer *transfer;
- static const GLuint dstImageOffsets = 0;
- GLboolean success;
- GLubyte *dest;
- const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
-
- /* we'll do pixel transfer in a fragment shader */
- ctx->_ImageTransferState = 0x0;
-
- transfer = pipe_get_transfer(st->pipe, pt, 0, 0,
- PIPE_TRANSFER_WRITE, 0, 0,
- width, height);
-
- /* map texture transfer */
- dest = pipe_transfer_map(pipe, transfer);
-
-
- /* Put image into texture transfer.
- * Note that the image is actually going to be upside down in
- * the texture. We deal with that with texcoords.
- */
- success = _mesa_texstore(ctx, 2, /* dims */
- baseFormat, /* baseInternalFormat */
- mformat, /* gl_format */
- dest, /* dest */
- 0, 0, 0, /* dstX/Y/Zoffset */
- transfer->stride, /* dstRowStride, bytes */
- &dstImageOffsets, /* dstImageOffsets */
- width, height, 1, /* size */
- format, type, /* src format/type */
- pixels, /* data source */
- unpack);
-
- /* unmap */
- pipe_transfer_unmap(pipe, transfer);
- pipe->transfer_destroy(pipe, transfer);
-
- assert(success);
-
- /* restore */
- ctx->_ImageTransferState = imageTransferStateSave;
- }
-
- _mesa_unmap_pbo_source(ctx, unpack);
-
- return pt;
-}
-
-
-/**
- * Draw quad with texcoords and optional color.
- * Coords are gallium window coords with y=0=top.
- * \param color may be null
- * \param invertTex if true, flip texcoords vertically
- */
-static void
-draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
- GLfloat x1, GLfloat y1, const GLfloat *color,
- GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
-
- /* setup vertex data */
- {
- const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
- const GLfloat fb_width = (GLfloat) fb->Width;
- const GLfloat fb_height = (GLfloat) fb->Height;
- const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
- const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
- const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
- const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f;
- const GLfloat sLeft = 0.0f, sRight = maxXcoord;
- const GLfloat tTop = invertTex ? maxYcoord : 0.0f;
- const GLfloat tBot = invertTex ? 0.0f : maxYcoord;
- GLuint i;
-
- /* upper-left */
- verts[0][0][0] = clip_x0; /* v[0].attr[0].x */
- verts[0][0][1] = clip_y0; /* v[0].attr[0].y */
-
- /* upper-right */
- verts[1][0][0] = clip_x1;
- verts[1][0][1] = clip_y0;
-
- /* lower-right */
- verts[2][0][0] = clip_x1;
- verts[2][0][1] = clip_y1;
-
- /* lower-left */
- verts[3][0][0] = clip_x0;
- verts[3][0][1] = clip_y1;
-
- verts[0][1][0] = sLeft; /* v[0].attr[1].S */
- verts[0][1][1] = tTop; /* v[0].attr[1].T */
- verts[1][1][0] = sRight;
- verts[1][1][1] = tTop;
- verts[2][1][0] = sRight;
- verts[2][1][1] = tBot;
- verts[3][1][0] = sLeft;
- verts[3][1][1] = tBot;
-
- /* same for all verts: */
- if (color) {
- for (i = 0; i < 4; i++) {
- verts[i][0][2] = z; /* v[i].attr[0].z */
- verts[i][0][3] = 1.0f; /* v[i].attr[0].w */
- verts[i][2][0] = color[0]; /* v[i].attr[2].r */
- verts[i][2][1] = color[1]; /* v[i].attr[2].g */
- verts[i][2][2] = color[2]; /* v[i].attr[2].b */
- verts[i][2][3] = color[3]; /* v[i].attr[2].a */
- verts[i][1][2] = 0.0f; /* v[i].attr[1].R */
- verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */
- }
- }
- else {
- for (i = 0; i < 4; i++) {
- verts[i][0][2] = z; /*Z*/
- verts[i][0][3] = 1.0f; /*W*/
- verts[i][1][2] = 0.0f; /*R*/
- verts[i][1][3] = 1.0f; /*Q*/
- }
- }
- }
-
- {
- struct pipe_resource *buf;
-
- /* allocate/load buffer object with vertex data */
- buf = pipe_buffer_create(pipe->screen,
- PIPE_BIND_VERTEX_BUFFER,
- PIPE_USAGE_STATIC,
- sizeof(verts));
- pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts);
-
- util_draw_vertex_buffer(pipe, st->cso_context, buf, 0,
- PIPE_PRIM_QUADS,
- 4, /* verts */
- 3); /* attribs/vert */
- pipe_resource_reference(&buf, NULL);
- }
-}
-
-
-
-static void
-draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
- GLsizei width, GLsizei height,
- GLfloat zoomX, GLfloat zoomY,
- struct pipe_sampler_view **sv,
- int num_sampler_view,
- void *driver_vp,
- void *driver_fp,
- const GLfloat *color,
- GLboolean invertTex,
- GLboolean write_depth, GLboolean write_stencil)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct cso_context *cso = st->cso_context;
- GLfloat x0, y0, x1, y1;
- GLsizei maxSize;
- boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;
-
- /* limit checks */
- /* XXX if DrawPixels image is larger than max texture size, break
- * it up into chunks.
- */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen,
- PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(width <= maxSize);
- assert(height <= maxSize);
-
- cso_save_rasterizer(cso);
- cso_save_viewport(cso);
- cso_save_samplers(cso);
- cso_save_fragment_sampler_views(cso);
- cso_save_fragment_shader(cso);
- cso_save_vertex_shader(cso);
- cso_save_vertex_elements(cso);
- cso_save_vertex_buffers(cso);
- if (write_stencil) {
- cso_save_depth_stencil_alpha(cso);
- cso_save_blend(cso);
- }
-
- /* rasterizer state: just scissor */
- {
- struct pipe_rasterizer_state rasterizer;
- memset(&rasterizer, 0, sizeof(rasterizer));
- rasterizer.gl_rasterization_rules = 1;
- rasterizer.scissor = ctx->Scissor.Enabled;
- cso_set_rasterizer(cso, &rasterizer);
- }
-
- if (write_stencil) {
- /* Stencil writing bypasses the normal fragment pipeline to
- * disable color writing and set stencil test to always pass.
- */
- struct pipe_depth_stencil_alpha_state dsa;
- struct pipe_blend_state blend;
-
- /* depth/stencil */
- memset(&dsa, 0, sizeof(dsa));
- dsa.stencil[0].enabled = 1;
- dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
- dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
- dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
- if (write_depth) {
- /* writing depth+stencil: depth test always passes */
- dsa.depth.enabled = 1;
- dsa.depth.writemask = ctx->Depth.Mask;
- dsa.depth.func = PIPE_FUNC_ALWAYS;
- }
- cso_set_depth_stencil_alpha(cso, &dsa);
-
- /* blend (colormask) */
- memset(&blend, 0, sizeof(blend));
- cso_set_blend(cso, &blend);
- }
-
- /* fragment shader state: TEX lookup program */
- cso_set_fragment_shader_handle(cso, driver_fp);
-
- /* vertex shader state: position + texcoord pass-through */
- cso_set_vertex_shader_handle(cso, driver_vp);
-
-
- /* texture sampling state: */
- {
- struct pipe_sampler_state sampler;
- memset(&sampler, 0, sizeof(sampler));
- sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
- sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
- sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
- sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
- sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.normalized_coords = normalized;
-
- cso_single_sampler(cso, 0, &sampler);
- if (num_sampler_view > 1) {
- cso_single_sampler(cso, 1, &sampler);
- }
- cso_single_sampler_done(cso);
- }
-
- /* viewport state: viewport matching window dims */
- {
- const float w = (float) ctx->DrawBuffer->Width;
- const float h = (float) ctx->DrawBuffer->Height;
- struct pipe_viewport_state vp;
- vp.scale[0] = 0.5f * w;
- vp.scale[1] = -0.5f * h;
- vp.scale[2] = 0.5f;
- vp.scale[3] = 1.0f;
- vp.translate[0] = 0.5f * w;
- vp.translate[1] = 0.5f * h;
- vp.translate[2] = 0.5f;
- vp.translate[3] = 0.0f;
- cso_set_viewport(cso, &vp);
- }
-
- cso_set_vertex_elements(cso, 3, st->velems_util_draw);
-
- /* texture state: */
- cso_set_fragment_sampler_views(cso, num_sampler_view, sv);
-
- /* Compute Gallium window coords (y=0=top) with pixel zoom.
- * Recall that these coords are transformed by the current
- * vertex shader and viewport transformation.
- */
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
- y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
- invertTex = !invertTex;
- }
-
- x0 = (GLfloat) x;
- x1 = x + width * ctx->Pixel.ZoomX;
- y0 = (GLfloat) y;
- y1 = y + height * ctx->Pixel.ZoomY;
-
- /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
- z = z * 2.0 - 1.0;
-
- draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
- normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,
- normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);
-
- /* restore state */
- cso_restore_rasterizer(cso);
- cso_restore_viewport(cso);
- cso_restore_samplers(cso);
- cso_restore_fragment_sampler_views(cso);
- cso_restore_fragment_shader(cso);
- cso_restore_vertex_shader(cso);
- cso_restore_vertex_elements(cso);
- cso_restore_vertex_buffers(cso);
- if (write_stencil) {
- cso_restore_depth_stencil_alpha(cso);
- cso_restore_blend(cso);
- }
-}
-
-
-/**
- * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we
- * can't use a fragment shader to write stencil values.
- */
-static void
-draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height, GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct st_renderbuffer *strb;
- enum pipe_transfer_usage usage;
- struct pipe_transfer *pt;
- const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
- GLint skipPixels;
- ubyte *stmap;
- struct gl_pixelstore_attrib clippedUnpack = *unpack;
-
- if (!zoom) {
- if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
- &clippedUnpack)) {
- /* totally clipped */
- return;
- }
- }
-
- strb = st_renderbuffer(ctx->DrawBuffer->
- Attachment[BUFFER_STENCIL].Renderbuffer);
-
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- y = ctx->DrawBuffer->Height - y - height;
- }
-
- if(format != GL_DEPTH_STENCIL &&
- util_format_get_component_bits(strb->format,
- UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
- usage = PIPE_TRANSFER_READ_WRITE;
- else
- usage = PIPE_TRANSFER_WRITE;
-
- pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0,
- usage, x, y,
- width, height);
-
- stmap = pipe_transfer_map(pipe, pt);
-
- pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
- assert(pixels);
-
- /* if width > MAX_WIDTH, have to process image in chunks */
- skipPixels = 0;
- while (skipPixels < width) {
- const GLint spanX = skipPixels;
- const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
- GLint row;
- for (row = 0; row < height; row++) {
- GLubyte sValues[MAX_WIDTH];
- GLuint zValues[MAX_WIDTH];
- GLenum destType = GL_UNSIGNED_BYTE;
- const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
- width, height,
- format, type,
- row, skipPixels);
- _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
- type, source, &clippedUnpack,
- ctx->_ImageTransferState);
-
- if (format == GL_DEPTH_STENCIL) {
- _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,
- (1 << 24) - 1, type, source,
- &clippedUnpack);
- }
-
- if (zoom) {
- _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with "
- "zoom not complete");
- }
-
- {
- GLint spanY;
-
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- spanY = height - row - 1;
- }
- else {
- spanY = row;
- }
-
- /* now pack the stencil (and Z) values in the dest format */
- switch (pt->resource->format) {
- case PIPE_FORMAT_S8_USCALED:
- {
- ubyte *dest = stmap + spanY * pt->stride + spanX;
- assert(usage == PIPE_TRANSFER_WRITE);
- memcpy(dest, sValues, spanWidth);
- }
- break;
- case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
- if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
- GLint k;
- assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
- dest[k] = zValues[k] | (sValues[k] << 24);
- }
- }
- else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
- GLint k;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
- dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
- }
- }
- break;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
- GLint k;
- assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
- dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
- }
- }
- else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
- GLint k;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
- dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
- }
- }
- break;
- default:
- assert(0);
- }
- }
- }
- skipPixels += spanWidth;
- }
-
- _mesa_unmap_pbo_source(ctx, &clippedUnpack);
-
- /* unmap the stencil buffer */
- pipe_transfer_unmap(pipe, pt);
- pipe->transfer_destroy(pipe, pt);
-}
-
-
-/**
- * Get fragment program variant for a glDrawPixels or glCopyPixels
- * command for RGBA data.
- */
-static struct st_fp_variant *
-get_color_fp_variant(struct st_context *st)
-{
- struct gl_context *ctx = st->ctx;
- struct st_fp_variant_key key;
- struct st_fp_variant *fpv;
-
- memset(&key, 0, sizeof(key));
-
- key.st = st;
- key.drawpixels = 1;
- key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||
- ctx->Pixel.RedScale != 1.0 ||
- ctx->Pixel.GreenBias != 0.0 ||
- ctx->Pixel.GreenScale != 1.0 ||
- ctx->Pixel.BlueBias != 0.0 ||
- ctx->Pixel.BlueScale != 1.0 ||
- ctx->Pixel.AlphaBias != 0.0 ||
- ctx->Pixel.AlphaScale != 1.0);
- key.pixelMaps = ctx->Pixel.MapColorFlag;
-
- fpv = st_get_fp_variant(st, st->fp, &key);
-
- return fpv;
-}
-
-
-/**
- * Get fragment program variant for a glDrawPixels or glCopyPixels
- * command for depth/stencil data.
- */
-static struct st_fp_variant *
-get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,
- GLboolean write_stencil)
-{
- struct st_fp_variant_key key;
- struct st_fp_variant *fpv;
-
- memset(&key, 0, sizeof(key));
-
- key.st = st;
- key.drawpixels = 1;
- key.drawpixels_z = write_depth;
- key.drawpixels_stencil = write_stencil;
-
- fpv = st_get_fp_variant(st, st->fp, &key);
-
- return fpv;
-}
-
-
-/**
- * Called via ctx->Driver.DrawPixels()
- */
-static void
-st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels)
-{
- void *driver_vp, *driver_fp;
- struct st_context *st = st_context(ctx);
- const GLfloat *color;
- struct pipe_context *pipe = st->pipe;
- GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;
- struct pipe_sampler_view *sv[2];
- int num_sampler_view = 1;
- enum pipe_format stencil_format = PIPE_FORMAT_NONE;
- struct st_fp_variant *fpv;
-
- if (format == GL_DEPTH_STENCIL)
- write_stencil = write_depth = GL_TRUE;
- else if (format == GL_STENCIL_INDEX)
- write_stencil = GL_TRUE;
- else if (format == GL_DEPTH_COMPONENT)
- write_depth = GL_TRUE;
-
- if (write_stencil) {
- enum pipe_format tex_format;
- /* can we write to stencil if not fallback */
- if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
- goto stencil_fallback;
-
- tex_format = st_choose_format(st->pipe->screen, base_format(format),
- PIPE_TEXTURE_2D,
- 0, PIPE_BIND_SAMPLER_VIEW);
- if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
- stencil_format = PIPE_FORMAT_X24S8_USCALED;
- else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM)
- stencil_format = PIPE_FORMAT_S8X24_USCALED;
- else
- stencil_format = PIPE_FORMAT_S8_USCALED;
- if (stencil_format == PIPE_FORMAT_NONE)
- goto stencil_fallback;
- }
-
- /* Mesa state should be up to date by now */
- assert(ctx->NewState == 0x0);
-
- st_validate_state(st);
-
- /*
- * Get vertex/fragment shaders
- */
- if (write_depth || write_stencil) {
- fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);
-
- driver_fp = fpv->driver_shader;
-
- driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
-
- color = ctx->Current.RasterColor;
- }
- else {
- fpv = get_color_fp_variant(st);
-
- driver_fp = fpv->driver_shader;
-
- driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
-
- color = NULL;
- if (st->pixel_xfer.pixelmap_enabled) {
- sv[1] = st->pixel_xfer.pixelmap_sampler_view;
- num_sampler_view++;
- }
- }
-
- /* update fragment program constants */
- st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
-
- /* draw with textured quad */
- {
- struct pipe_resource *pt
- = make_texture(st, width, height, format, type, unpack, pixels);
- if (pt) {
- sv[0] = st_create_texture_sampler_view(st->pipe, pt);
-
- if (sv[0]) {
- if (write_stencil) {
- sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,
- stencil_format);
- num_sampler_view++;
- }
-
- draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
- width, height,
- ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
- sv,
- num_sampler_view,
- driver_vp,
- driver_fp,
- color, GL_FALSE, write_depth, write_stencil);
- pipe_sampler_view_reference(&sv[0], NULL);
- if (num_sampler_view > 1)
- pipe_sampler_view_reference(&sv[1], NULL);
- }
- pipe_resource_reference(&pt, NULL);
- }
- }
- return;
-
-stencil_fallback:
- draw_stencil_pixels(ctx, x, y, width, height, format, type,
- unpack, pixels);
-}
-
-
-
-/**
- * Software fallback for glCopyPixels(GL_STENCIL).
- */
-static void
-copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
- GLsizei width, GLsizei height,
- GLint dstx, GLint dsty)
-{
- struct st_renderbuffer *rbDraw;
- struct pipe_context *pipe = st_context(ctx)->pipe;
- enum pipe_transfer_usage usage;
- struct pipe_transfer *ptDraw;
- ubyte *drawMap;
- ubyte *buffer;
- int i;
-
- buffer = malloc(width * height * sizeof(ubyte));
- if (!buffer) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)");
- return;
- }
-
- /* Get the dest renderbuffer. If there's a wrapper, use the
- * underlying renderbuffer.
- */
- rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
- if (rbDraw->Base.Wrapped)
- rbDraw = st_renderbuffer(rbDraw->Base.Wrapped);
-
- /* this will do stencil pixel transfer ops */
- st_read_stencil_pixels(ctx, srcx, srcy, width, height,
- GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
- &ctx->DefaultPacking, buffer);
-
- if (0) {
- /* debug code: dump stencil values */
- GLint row, col;
- for (row = 0; row < height; row++) {
- printf("%3d: ", row);
- for (col = 0; col < width; col++) {
- printf("%02x ", buffer[col + row * width]);
- }
- printf("\n");
- }
- }
-
- if (util_format_get_component_bits(rbDraw->format,
- UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
- usage = PIPE_TRANSFER_READ_WRITE;
- else
- usage = PIPE_TRANSFER_WRITE;
-
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- dsty = rbDraw->Base.Height - dsty - height;
- }
-
- ptDraw = pipe_get_transfer(st_context(ctx)->pipe,
- rbDraw->texture, 0, 0,
- usage, dstx, dsty,
- width, height);
-
- assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);
- assert(util_format_get_blockheight(ptDraw->resource->format) == 1);
-
- /* map the stencil buffer */
- drawMap = pipe_transfer_map(pipe, ptDraw);
-
- /* draw */
- /* XXX PixelZoom not handled yet */
- for (i = 0; i < height; i++) {
- ubyte *dst;
- const ubyte *src;
- int y;
-
- y = i;
-
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- y = height - y - 1;
- }
-
- dst = drawMap + y * ptDraw->stride;
- src = buffer + i * width;
-
- switch (ptDraw->resource->format) {
- case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
- {
- uint *dst4 = (uint *) dst;
- int j;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (j = 0; j < width; j++) {
- *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);
- dst4++;
- }
- }
- break;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- {
- uint *dst4 = (uint *) dst;
- int j;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (j = 0; j < width; j++) {
- *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);
- dst4++;
- }
- }
- break;
- case PIPE_FORMAT_S8_USCALED:
- assert(usage == PIPE_TRANSFER_WRITE);
- memcpy(dst, src, width);
- break;
- default:
- assert(0);
- }
- }
-
- free(buffer);
-
- /* unmap the stencil buffer */
- pipe_transfer_unmap(pipe, ptDraw);
- pipe->transfer_destroy(pipe, ptDraw);
-}
-
-
-static void
-st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
- GLsizei width, GLsizei height,
- GLint dstx, GLint dsty, GLenum type)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct pipe_screen *screen = pipe->screen;
- struct st_renderbuffer *rbRead;
- void *driver_vp, *driver_fp;
- struct pipe_resource *pt;
- struct pipe_sampler_view *sv[2];
- int num_sampler_view = 1;
- GLfloat *color;
- enum pipe_format srcFormat, texFormat;
- GLboolean invertTex = GL_FALSE;
- GLint readX, readY, readW, readH;
- GLuint sample_count;
- struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
- struct st_fp_variant *fpv;
-
- st_validate_state(st);
-
- if (type == GL_STENCIL) {
- /* can't use texturing to do stencil */
- copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
- return;
- }
-
- /*
- * Get vertex/fragment shaders
- */
- if (type == GL_COLOR) {
- rbRead = st_get_color_read_renderbuffer(ctx);
- color = NULL;
-
- fpv = get_color_fp_variant(st);
- driver_fp = fpv->driver_shader;
-
- driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
-
- if (st->pixel_xfer.pixelmap_enabled) {
- sv[1] = st->pixel_xfer.pixelmap_sampler_view;
- num_sampler_view++;
- }
- }
- else {
- assert(type == GL_DEPTH);
- rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
- color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
-
- fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
- driver_fp = fpv->driver_shader;
-
- driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
- }
-
- /* update fragment program constants */
- st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
-
-
- if (rbRead->Base.Wrapped)
- rbRead = st_renderbuffer(rbRead->Base.Wrapped);
-
- sample_count = rbRead->texture->nr_samples;
- /* I believe this would be legal, presumably would need to do a resolve
- for color, and for depth/stencil spec says to just use one of the
- depth/stencil samples per pixel? Need some transfer clarifications. */
- assert(sample_count < 2);
-
- srcFormat = rbRead->texture->format;
-
- if (screen->is_format_supported(screen, srcFormat, st->internal_target,
- sample_count,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- texFormat = srcFormat;
- }
- else {
- /* srcFormat can't be used as a texture format */
- if (type == GL_DEPTH) {
- texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
- st->internal_target, sample_count,
- PIPE_BIND_DEPTH_STENCIL);
- assert(texFormat != PIPE_FORMAT_NONE);
- }
- else {
- /* default color format */
- texFormat = st_choose_format(screen, GL_RGBA, st->internal_target,
- sample_count, PIPE_BIND_SAMPLER_VIEW);
- assert(texFormat != PIPE_FORMAT_NONE);
- }
- }
-
- /* Invert src region if needed */
- if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
- srcy = ctx->ReadBuffer->Height - srcy - height;
- invertTex = !invertTex;
- }
-
- /* Clip the read region against the src buffer bounds.
- * We'll still allocate a temporary buffer/texture for the original
- * src region size but we'll only read the region which is on-screen.
- * This may mean that we draw garbage pixels into the dest region, but
- * that's expected.
- */
- readX = srcx;
- readY = srcy;
- readW = width;
- readH = height;
- _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
- readW = MAX2(0, readW);
- readH = MAX2(0, readH);
-
- /* alloc temporary texture */
- pt = alloc_texture(st, width, height, texFormat);
- if (!pt)
- return;
-
- sv[0] = st_create_texture_sampler_view(st->pipe, pt);
- if (!sv[0]) {
- pipe_resource_reference(&pt, NULL);
- return;
- }
-
- /* Make temporary texture which is a copy of the src region.
- */
- if (srcFormat == texFormat) {
- struct pipe_box src_box;
- u_box_2d(readX, readY, readW, readH, &src_box);
- /* copy source framebuffer surface into mipmap/texture */
- pipe->resource_copy_region(pipe,
- pt, /* dest tex */
- 0,
- pack.SkipPixels, pack.SkipRows, 0, /* dest pos */
- rbRead->texture, /* src tex */
- 0,
- &src_box);
-
- }
- else {
- /* CPU-based fallback/conversion */
- struct pipe_transfer *ptRead =
- pipe_get_transfer(st->pipe, rbRead->texture, 0, 0,
- PIPE_TRANSFER_READ,
- readX, readY, readW, readH);
- struct pipe_transfer *ptTex;
- enum pipe_transfer_usage transfer_usage;
-
- if (ST_DEBUG & DEBUG_FALLBACK)
- debug_printf("%s: fallback processing\n", __FUNCTION__);
-
- if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
- transfer_usage = PIPE_TRANSFER_READ_WRITE;
- else
- transfer_usage = PIPE_TRANSFER_WRITE;
-
- ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,
- 0, 0, width, height);
-
- /* copy image from ptRead surface to ptTex surface */
- if (type == GL_COLOR) {
- /* alternate path using get/put_tile() */
- GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
- enum pipe_format readFormat, drawFormat;
- readFormat = util_format_linear(rbRead->texture->format);
- drawFormat = util_format_linear(pt->format);
- pipe_get_tile_rgba_format(pipe, ptRead, readX, readY, readW, readH,
- readFormat, buf);
- pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
- readW, readH, drawFormat, buf);
- free(buf);
- }
- else {
- /* GL_DEPTH */
- GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
- pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf);
- pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
- readW, readH, buf);
- free(buf);
- }
-
- pipe->transfer_destroy(pipe, ptRead);
- pipe->transfer_destroy(pipe, ptTex);
- }
-
- /* OK, the texture 'pt' contains the src image/pixels. Now draw a
- * textured quad with that texture.
- */
- draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
- width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
- sv,
- num_sampler_view,
- driver_vp,
- driver_fp,
- color, invertTex, GL_FALSE, GL_FALSE);
-
- pipe_resource_reference(&pt, NULL);
- pipe_sampler_view_reference(&sv[0], NULL);
-}
-
-
-
-void st_init_drawpixels_functions(struct dd_function_table *functions)
-{
- functions->DrawPixels = st_DrawPixels;
- functions->CopyPixels = st_CopyPixels;
-}
-
-
-void
-st_destroy_drawpix(struct st_context *st)
-{
- GLuint i;
-
- for (i = 0; i < Elements(st->drawpix.shaders); i++) {
- if (st->drawpix.shaders[i])
- _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);
- }
-
- st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
- if (st->drawpix.vert_shaders[0])
- ureg_free_tokens(st->drawpix.vert_shaders[0]);
- if (st->drawpix.vert_shaders[1])
- ureg_free_tokens(st->drawpix.vert_shaders[1]);
-}
-
-#endif /* FEATURE_drawpix */
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Brian Paul
+ */
+
+#include "main/imports.h"
+#include "main/image.h"
+#include "main/bufferobj.h"
+#include "main/macros.h"
+#include "main/mfeatures.h"
+#include "main/mtypes.h"
+#include "main/pack.h"
+#include "main/texformat.h"
+#include "main/texstore.h"
+#include "program/program.h"
+#include "program/prog_print.h"
+#include "program/prog_instruction.h"
+
+#include "st_atom.h"
+#include "st_atom_constbuf.h"
+#include "st_cb_drawpixels.h"
+#include "st_cb_readpixels.h"
+#include "st_cb_fbo.h"
+#include "st_context.h"
+#include "st_debug.h"
+#include "st_format.h"
+#include "st_program.h"
+#include "st_texture.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "tgsi/tgsi_ureg.h"
+#include "util/u_draw_quad.h"
+#include "util/u_format.h"
+#include "util/u_inlines.h"
+#include "util/u_math.h"
+#include "util/u_tile.h"
+#include "cso_cache/cso_context.h"
+
+
+#if FEATURE_drawpix
+
+/**
+ * Check if the given program is:
+ * 0: MOVE result.color, fragment.color;
+ * 1: END;
+ */
+static GLboolean
+is_passthrough_program(const struct gl_fragment_program *prog)
+{
+ if (prog->Base.NumInstructions == 2) {
+ const struct prog_instruction *inst = prog->Base.Instructions;
+ if (inst[0].Opcode == OPCODE_MOV &&
+ inst[1].Opcode == OPCODE_END &&
+ inst[0].DstReg.File == PROGRAM_OUTPUT &&
+ inst[0].DstReg.Index == FRAG_RESULT_COLOR &&
+ inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&
+ inst[0].SrcReg[0].File == PROGRAM_INPUT &&
+ inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&
+ inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {
+ return GL_TRUE;
+ }
+ }
+ return GL_FALSE;
+}
+
+
+
+/**
+ * Make fragment shader for glDraw/CopyPixels. This shader is made
+ * by combining the pixel transfer shader with the user-defined shader.
+ * \param fpIn the current/incoming fragment program
+ * \param fpOut returns the combined fragment program
+ */
+void
+st_make_drawpix_fragment_program(struct st_context *st,
+ struct gl_fragment_program *fpIn,
+ struct gl_fragment_program **fpOut)
+{
+ struct gl_program *newProg;
+
+ if (is_passthrough_program(fpIn)) {
+ newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,
+ &st->pixel_xfer.program->Base);
+ }
+ else {
+#if 0
+ /* debug */
+ printf("Base program:\n");
+ _mesa_print_program(&fpIn->Base);
+ printf("DrawPix program:\n");
+ _mesa_print_program(&st->pixel_xfer.program->Base.Base);
+#endif
+ newProg = _mesa_combine_programs(st->ctx,
+ &st->pixel_xfer.program->Base.Base,
+ &fpIn->Base);
+ }
+
+#if 0
+ /* debug */
+ printf("Combined DrawPixels program:\n");
+ _mesa_print_program(newProg);
+ printf("InputsRead: 0x%x\n", newProg->InputsRead);
+ printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
+ _mesa_print_parameter_list(newProg->Parameters);
+#endif
+
+ *fpOut = (struct gl_fragment_program *) newProg;
+}
+
+
+/**
+ * Create fragment program that does a TEX() instruction to get a Z and/or
+ * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.
+ * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).
+ * Pass fragment color through as-is.
+ * \return pointer to the gl_fragment program
+ */
+struct gl_fragment_program *
+st_make_drawpix_z_stencil_program(struct st_context *st,
+ GLboolean write_depth,
+ GLboolean write_stencil)
+{
+ struct gl_context *ctx = st->ctx;
+ struct gl_program *p;
+ struct gl_fragment_program *fp;
+ GLuint ic = 0;
+ const GLuint shaderIndex = write_depth * 2 + write_stencil;
+
+ assert(shaderIndex < Elements(st->drawpix.shaders));
+
+ if (st->drawpix.shaders[shaderIndex]) {
+ /* already have the proper shader */
+ return st->drawpix.shaders[shaderIndex];
+ }
+
+ /*
+ * Create shader now
+ */
+ p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
+ if (!p)
+ return NULL;
+
+ p->NumInstructions = write_depth ? 2 : 1;
+ p->NumInstructions += write_stencil ? 1 : 0;
+
+ p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
+ if (!p->Instructions) {
+ ctx->Driver.DeleteProgram(ctx, p);
+ return NULL;
+ }
+ _mesa_init_instructions(p->Instructions, p->NumInstructions);
+
+ if (write_depth) {
+ /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
+ p->Instructions[ic].Opcode = OPCODE_TEX;
+ p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
+ p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
+ p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
+ p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
+ p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
+ p->Instructions[ic].TexSrcUnit = 0;
+ p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+ }
+
+ if (write_stencil) {
+ /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */
+ p->Instructions[ic].Opcode = OPCODE_TEX;
+ p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
+ p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;
+ p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;
+ p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
+ p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
+ p->Instructions[ic].TexSrcUnit = 1;
+ p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+ }
+
+ /* END; */
+ p->Instructions[ic++].Opcode = OPCODE_END;
+
+ assert(ic == p->NumInstructions);
+
+ p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;
+ p->OutputsWritten = 0;
+ if (write_depth)
+ p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH);
+ if (write_stencil)
+ p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL);
+
+ p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
+ if (write_stencil)
+ p->SamplersUsed |= 1 << 1;
+
+ fp = (struct gl_fragment_program *) p;
+
+ /* save the new shader */
+ st->drawpix.shaders[shaderIndex] = fp;
+
+ return fp;
+}
+
+
+/**
+ * Create a simple vertex shader that just passes through the
+ * vertex position and texcoord (and optionally, color).
+ */
+static void *
+make_passthrough_vertex_shader(struct st_context *st,
+ GLboolean passColor)
+{
+ if (!st->drawpix.vert_shaders[passColor]) {
+ struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
+
+ if (ureg == NULL)
+ return NULL;
+
+ /* MOV result.pos, vertex.pos; */
+ ureg_MOV(ureg,
+ ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ),
+ ureg_DECL_vs_input( ureg, 0 ));
+
+ /* MOV result.texcoord0, vertex.attr[1]; */
+ ureg_MOV(ureg,
+ ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
+ ureg_DECL_vs_input( ureg, 1 ));
+
+ if (passColor) {
+ /* MOV result.color0, vertex.attr[2]; */
+ ureg_MOV(ureg,
+ ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ),
+ ureg_DECL_vs_input( ureg, 2 ));
+ }
+
+ ureg_END( ureg );
+
+ st->drawpix.vert_shaders[passColor] =
+ ureg_create_shader_and_destroy( ureg, st->pipe );
+ }
+
+ return st->drawpix.vert_shaders[passColor];
+}
+
+
+/**
+ * Return a texture base format for drawing/copying an image
+ * of the given format.
+ */
+static GLenum
+base_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL:
+ return GL_DEPTH_STENCIL;
+ case GL_STENCIL_INDEX:
+ return GL_STENCIL_INDEX;
+ default:
+ return GL_RGBA;
+ }
+}
+
+
+/**
+ * Return a texture internalFormat for drawing/copying an image
+ * of the given format and type.
+ */
+static GLenum
+internal_format(GLenum format, GLenum type)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL:
+ return GL_DEPTH_STENCIL;
+ case GL_STENCIL_INDEX:
+ return GL_STENCIL_INDEX;
+ default:
+ if (_mesa_is_integer_format(format)) {
+ switch (type) {
+ case GL_BYTE:
+ return GL_RGBA8I;
+ case GL_UNSIGNED_BYTE:
+ return GL_RGBA8UI;
+ case GL_SHORT:
+ return GL_RGBA16I;
+ case GL_UNSIGNED_SHORT:
+ return GL_RGBA16UI;
+ case GL_INT:
+ return GL_RGBA32I;
+ case GL_UNSIGNED_INT:
+ return GL_RGBA32UI;
+ default:
+ assert(0 && "Unexpected type in internal_format()");
+ return GL_RGBA_INTEGER;
+ }
+ }
+ else {
+ return GL_RGBA;
+ }
+ }
+}
+
+
+/**
+ * Create a temporary texture to hold an image of the given size.
+ * If width, height are not POT and the driver only handles POT textures,
+ * allocate the next larger size of texture that is POT.
+ */
+static struct pipe_resource *
+alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
+ enum pipe_format texFormat)
+{
+ struct pipe_resource *pt;
+
+ pt = st_texture_create(st, st->internal_target, texFormat, 0,
+ width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
+
+ return pt;
+}
+
+
+/**
+ * Make texture containing an image for glDrawPixels image.
+ * If 'pixels' is NULL, leave the texture image data undefined.
+ */
+static struct pipe_resource *
+make_texture(struct st_context *st,
+ GLsizei width, GLsizei height, GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels)
+{
+ struct gl_context *ctx = st->ctx;
+ struct pipe_context *pipe = st->pipe;
+ gl_format mformat;
+ struct pipe_resource *pt;
+ enum pipe_format pipeFormat;
+ GLuint cpp;
+ GLenum baseFormat, intFormat;
+
+ baseFormat = base_format(format);
+ intFormat = internal_format(format, type);
+
+ mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,
+ format, type, GL_FALSE);
+ assert(mformat);
+
+ pipeFormat = st_mesa_format_to_pipe_format(mformat);
+ assert(pipeFormat);
+ cpp = util_format_get_blocksize(pipeFormat);
+
+ pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
+ if (!pixels)
+ return NULL;
+
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, pipeFormat);
+ if (!pt) {
+ _mesa_unmap_pbo_source(ctx, unpack);
+ return NULL;
+ }
+
+ {
+ struct pipe_transfer *transfer;
+ static const GLuint dstImageOffsets = 0;
+ GLboolean success;
+ GLubyte *dest;
+ const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
+
+ /* we'll do pixel transfer in a fragment shader */
+ ctx->_ImageTransferState = 0x0;
+
+ transfer = pipe_get_transfer(st->pipe, pt, 0, 0,
+ PIPE_TRANSFER_WRITE, 0, 0,
+ width, height);
+
+ /* map texture transfer */
+ dest = pipe_transfer_map(pipe, transfer);
+
+
+ /* Put image into texture transfer.
+ * Note that the image is actually going to be upside down in
+ * the texture. We deal with that with texcoords.
+ */
+ success = _mesa_texstore(ctx, 2, /* dims */
+ baseFormat, /* baseInternalFormat */
+ mformat, /* gl_format */
+ dest, /* dest */
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ transfer->stride, /* dstRowStride, bytes */
+ &dstImageOffsets, /* dstImageOffsets */
+ width, height, 1, /* size */
+ format, type, /* src format/type */
+ pixels, /* data source */
+ unpack);
+
+ /* unmap */
+ pipe_transfer_unmap(pipe, transfer);
+ pipe->transfer_destroy(pipe, transfer);
+
+ assert(success);
+
+ /* restore */
+ ctx->_ImageTransferState = imageTransferStateSave;
+ }
+
+ _mesa_unmap_pbo_source(ctx, unpack);
+
+ return pt;
+}
+
+
+/**
+ * Draw quad with texcoords and optional color.
+ * Coords are gallium window coords with y=0=top.
+ * \param color may be null
+ * \param invertTex if true, flip texcoords vertically
+ */
+static void
+draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
+ GLfloat x1, GLfloat y1, const GLfloat *color,
+ GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
+
+ /* setup vertex data */
+ {
+ const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+ const GLfloat fb_width = (GLfloat) fb->Width;
+ const GLfloat fb_height = (GLfloat) fb->Height;
+ const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
+ const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
+ const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
+ const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f;
+ const GLfloat sLeft = 0.0f, sRight = maxXcoord;
+ const GLfloat tTop = invertTex ? maxYcoord : 0.0f;
+ const GLfloat tBot = invertTex ? 0.0f : maxYcoord;
+ GLuint i;
+
+ /* upper-left */
+ verts[0][0][0] = clip_x0; /* v[0].attr[0].x */
+ verts[0][0][1] = clip_y0; /* v[0].attr[0].y */
+
+ /* upper-right */
+ verts[1][0][0] = clip_x1;
+ verts[1][0][1] = clip_y0;
+
+ /* lower-right */
+ verts[2][0][0] = clip_x1;
+ verts[2][0][1] = clip_y1;
+
+ /* lower-left */
+ verts[3][0][0] = clip_x0;
+ verts[3][0][1] = clip_y1;
+
+ verts[0][1][0] = sLeft; /* v[0].attr[1].S */
+ verts[0][1][1] = tTop; /* v[0].attr[1].T */
+ verts[1][1][0] = sRight;
+ verts[1][1][1] = tTop;
+ verts[2][1][0] = sRight;
+ verts[2][1][1] = tBot;
+ verts[3][1][0] = sLeft;
+ verts[3][1][1] = tBot;
+
+ /* same for all verts: */
+ if (color) {
+ for (i = 0; i < 4; i++) {
+ verts[i][0][2] = z; /* v[i].attr[0].z */
+ verts[i][0][3] = 1.0f; /* v[i].attr[0].w */
+ verts[i][2][0] = color[0]; /* v[i].attr[2].r */
+ verts[i][2][1] = color[1]; /* v[i].attr[2].g */
+ verts[i][2][2] = color[2]; /* v[i].attr[2].b */
+ verts[i][2][3] = color[3]; /* v[i].attr[2].a */
+ verts[i][1][2] = 0.0f; /* v[i].attr[1].R */
+ verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */
+ }
+ }
+ else {
+ for (i = 0; i < 4; i++) {
+ verts[i][0][2] = z; /*Z*/
+ verts[i][0][3] = 1.0f; /*W*/
+ verts[i][1][2] = 0.0f; /*R*/
+ verts[i][1][3] = 1.0f; /*Q*/
+ }
+ }
+ }
+
+ {
+ struct pipe_resource *buf;
+
+ /* allocate/load buffer object with vertex data */
+ buf = pipe_buffer_create(pipe->screen,
+ PIPE_BIND_VERTEX_BUFFER,
+ PIPE_USAGE_STATIC,
+ sizeof(verts));
+ pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts);
+
+ util_draw_vertex_buffer(pipe, st->cso_context, buf, 0,
+ PIPE_PRIM_QUADS,
+ 4, /* verts */
+ 3); /* attribs/vert */
+ pipe_resource_reference(&buf, NULL);
+ }
+}
+
+
+
+static void
+draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
+ GLsizei width, GLsizei height,
+ GLfloat zoomX, GLfloat zoomY,
+ struct pipe_sampler_view **sv,
+ int num_sampler_view,
+ void *driver_vp,
+ void *driver_fp,
+ const GLfloat *color,
+ GLboolean invertTex,
+ GLboolean write_depth, GLboolean write_stencil)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct cso_context *cso = st->cso_context;
+ GLfloat x0, y0, x1, y1;
+ GLsizei maxSize;
+ boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;
+
+ /* limit checks */
+ /* XXX if DrawPixels image is larger than max texture size, break
+ * it up into chunks.
+ */
+ maxSize = 1 << (pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
+ assert(width <= maxSize);
+ assert(height <= maxSize);
+
+ cso_save_rasterizer(cso);
+ cso_save_viewport(cso);
+ cso_save_samplers(cso);
+ cso_save_fragment_sampler_views(cso);
+ cso_save_fragment_shader(cso);
+ cso_save_vertex_shader(cso);
+ cso_save_vertex_elements(cso);
+ cso_save_vertex_buffers(cso);
+ if (write_stencil) {
+ cso_save_depth_stencil_alpha(cso);
+ cso_save_blend(cso);
+ }
+
+ /* rasterizer state: just scissor */
+ {
+ struct pipe_rasterizer_state rasterizer;
+ memset(&rasterizer, 0, sizeof(rasterizer));
+ rasterizer.gl_rasterization_rules = 1;
+ rasterizer.scissor = ctx->Scissor.Enabled;
+ cso_set_rasterizer(cso, &rasterizer);
+ }
+
+ if (write_stencil) {
+ /* Stencil writing bypasses the normal fragment pipeline to
+ * disable color writing and set stencil test to always pass.
+ */
+ struct pipe_depth_stencil_alpha_state dsa;
+ struct pipe_blend_state blend;
+
+ /* depth/stencil */
+ memset(&dsa, 0, sizeof(dsa));
+ dsa.stencil[0].enabled = 1;
+ dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
+ dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
+ dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
+ if (write_depth) {
+ /* writing depth+stencil: depth test always passes */
+ dsa.depth.enabled = 1;
+ dsa.depth.writemask = ctx->Depth.Mask;
+ dsa.depth.func = PIPE_FUNC_ALWAYS;
+ }
+ cso_set_depth_stencil_alpha(cso, &dsa);
+
+ /* blend (colormask) */
+ memset(&blend, 0, sizeof(blend));
+ cso_set_blend(cso, &blend);
+ }
+
+ /* fragment shader state: TEX lookup program */
+ cso_set_fragment_shader_handle(cso, driver_fp);
+
+ /* vertex shader state: position + texcoord pass-through */
+ cso_set_vertex_shader_handle(cso, driver_vp);
+
+
+ /* texture sampling state: */
+ {
+ struct pipe_sampler_state sampler;
+ memset(&sampler, 0, sizeof(sampler));
+ sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
+ sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
+ sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
+ sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
+ sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+ sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
+ sampler.normalized_coords = normalized;
+
+ cso_single_sampler(cso, 0, &sampler);
+ if (num_sampler_view > 1) {
+ cso_single_sampler(cso, 1, &sampler);
+ }
+ cso_single_sampler_done(cso);
+ }
+
+ /* viewport state: viewport matching window dims */
+ {
+ const float w = (float) ctx->DrawBuffer->Width;
+ const float h = (float) ctx->DrawBuffer->Height;
+ struct pipe_viewport_state vp;
+ vp.scale[0] = 0.5f * w;
+ vp.scale[1] = -0.5f * h;
+ vp.scale[2] = 0.5f;
+ vp.scale[3] = 1.0f;
+ vp.translate[0] = 0.5f * w;
+ vp.translate[1] = 0.5f * h;
+ vp.translate[2] = 0.5f;
+ vp.translate[3] = 0.0f;
+ cso_set_viewport(cso, &vp);
+ }
+
+ cso_set_vertex_elements(cso, 3, st->velems_util_draw);
+
+ /* texture state: */
+ cso_set_fragment_sampler_views(cso, num_sampler_view, sv);
+
+ /* Compute Gallium window coords (y=0=top) with pixel zoom.
+ * Recall that these coords are transformed by the current
+ * vertex shader and viewport transformation.
+ */
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
+ y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
+ invertTex = !invertTex;
+ }
+
+ x0 = (GLfloat) x;
+ x1 = x + width * ctx->Pixel.ZoomX;
+ y0 = (GLfloat) y;
+ y1 = y + height * ctx->Pixel.ZoomY;
+
+ /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
+ z = z * 2.0 - 1.0;
+
+ draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
+ normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,
+ normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);
+
+ /* restore state */
+ cso_restore_rasterizer(cso);
+ cso_restore_viewport(cso);
+ cso_restore_samplers(cso);
+ cso_restore_fragment_sampler_views(cso);
+ cso_restore_fragment_shader(cso);
+ cso_restore_vertex_shader(cso);
+ cso_restore_vertex_elements(cso);
+ cso_restore_vertex_buffers(cso);
+ if (write_stencil) {
+ cso_restore_depth_stencil_alpha(cso);
+ cso_restore_blend(cso);
+ }
+}
+
+
+/**
+ * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we
+ * can't use a fragment shader to write stencil values.
+ */
+static void
+draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
+ GLsizei width, GLsizei height, GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct st_renderbuffer *strb;
+ enum pipe_transfer_usage usage;
+ struct pipe_transfer *pt;
+ const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
+ GLint skipPixels;
+ ubyte *stmap;
+ struct gl_pixelstore_attrib clippedUnpack = *unpack;
+
+ if (!zoom) {
+ if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
+ &clippedUnpack)) {
+ /* totally clipped */
+ return;
+ }
+ }
+
+ strb = st_renderbuffer(ctx->DrawBuffer->
+ Attachment[BUFFER_STENCIL].Renderbuffer);
+
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ y = ctx->DrawBuffer->Height - y - height;
+ }
+
+ if(format != GL_DEPTH_STENCIL &&
+ util_format_get_component_bits(strb->format,
+ UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
+ usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ usage = PIPE_TRANSFER_WRITE;
+
+ pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0,
+ usage, x, y,
+ width, height);
+
+ stmap = pipe_transfer_map(pipe, pt);
+
+ pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
+ assert(pixels);
+
+ /* if width > MAX_WIDTH, have to process image in chunks */
+ skipPixels = 0;
+ while (skipPixels < width) {
+ const GLint spanX = skipPixels;
+ const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
+ GLint row;
+ for (row = 0; row < height; row++) {
+ GLubyte sValues[MAX_WIDTH];
+ GLuint zValues[MAX_WIDTH];
+ GLenum destType = GL_UNSIGNED_BYTE;
+ const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
+ width, height,
+ format, type,
+ row, skipPixels);
+ _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
+ type, source, &clippedUnpack,
+ ctx->_ImageTransferState);
+
+ if (format == GL_DEPTH_STENCIL) {
+ _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,
+ (1 << 24) - 1, type, source,
+ &clippedUnpack);
+ }
+
+ if (zoom) {
+ _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with "
+ "zoom not complete");
+ }
+
+ {
+ GLint spanY;
+
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ spanY = height - row - 1;
+ }
+ else {
+ spanY = row;
+ }
+
+ /* now pack the stencil (and Z) values in the dest format */
+ switch (pt->resource->format) {
+ case PIPE_FORMAT_S8_USCALED:
+ {
+ ubyte *dest = stmap + spanY * pt->stride + spanX;
+ assert(usage == PIPE_TRANSFER_WRITE);
+ memcpy(dest, sValues, spanWidth);
+ }
+ break;
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ if (format == GL_DEPTH_STENCIL) {
+ uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ GLint k;
+ assert(usage == PIPE_TRANSFER_WRITE);
+ for (k = 0; k < spanWidth; k++) {
+ dest[k] = zValues[k] | (sValues[k] << 24);
+ }
+ }
+ else {
+ uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ GLint k;
+ assert(usage == PIPE_TRANSFER_READ_WRITE);
+ for (k = 0; k < spanWidth; k++) {
+ dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
+ }
+ }
+ break;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ if (format == GL_DEPTH_STENCIL) {
+ uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ GLint k;
+ assert(usage == PIPE_TRANSFER_WRITE);
+ for (k = 0; k < spanWidth; k++) {
+ dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
+ }
+ }
+ else {
+ uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ GLint k;
+ assert(usage == PIPE_TRANSFER_READ_WRITE);
+ for (k = 0; k < spanWidth; k++) {
+ dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
+ }
+ }
+ break;
+ default:
+ assert(0);
+ }
+ }
+ }
+ skipPixels += spanWidth;
+ }
+
+ _mesa_unmap_pbo_source(ctx, &clippedUnpack);
+
+ /* unmap the stencil buffer */
+ pipe_transfer_unmap(pipe, pt);
+ pipe->transfer_destroy(pipe, pt);
+}
+
+
+/**
+ * Get fragment program variant for a glDrawPixels or glCopyPixels
+ * command for RGBA data.
+ */
+static struct st_fp_variant *
+get_color_fp_variant(struct st_context *st)
+{
+ struct gl_context *ctx = st->ctx;
+ struct st_fp_variant_key key;
+ struct st_fp_variant *fpv;
+
+ memset(&key, 0, sizeof(key));
+
+ key.st = st;
+ key.drawpixels = 1;
+ key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||
+ ctx->Pixel.RedScale != 1.0 ||
+ ctx->Pixel.GreenBias != 0.0 ||
+ ctx->Pixel.GreenScale != 1.0 ||
+ ctx->Pixel.BlueBias != 0.0 ||
+ ctx->Pixel.BlueScale != 1.0 ||
+ ctx->Pixel.AlphaBias != 0.0 ||
+ ctx->Pixel.AlphaScale != 1.0);
+ key.pixelMaps = ctx->Pixel.MapColorFlag;
+
+ fpv = st_get_fp_variant(st, st->fp, &key);
+
+ return fpv;
+}
+
+
+/**
+ * Get fragment program variant for a glDrawPixels or glCopyPixels
+ * command for depth/stencil data.
+ */
+static struct st_fp_variant *
+get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,
+ GLboolean write_stencil)
+{
+ struct st_fp_variant_key key;
+ struct st_fp_variant *fpv;
+
+ memset(&key, 0, sizeof(key));
+
+ key.st = st;
+ key.drawpixels = 1;
+ key.drawpixels_z = write_depth;
+ key.drawpixels_stencil = write_stencil;
+
+ fpv = st_get_fp_variant(st, st->fp, &key);
+
+ return fpv;
+}
+
+
+/**
+ * Called via ctx->Driver.DrawPixels()
+ */
+static void
+st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels)
+{
+ void *driver_vp, *driver_fp;
+ struct st_context *st = st_context(ctx);
+ const GLfloat *color;
+ struct pipe_context *pipe = st->pipe;
+ GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;
+ struct pipe_sampler_view *sv[2];
+ int num_sampler_view = 1;
+ enum pipe_format stencil_format = PIPE_FORMAT_NONE;
+ struct st_fp_variant *fpv;
+
+ if (format == GL_DEPTH_STENCIL)
+ write_stencil = write_depth = GL_TRUE;
+ else if (format == GL_STENCIL_INDEX)
+ write_stencil = GL_TRUE;
+ else if (format == GL_DEPTH_COMPONENT)
+ write_depth = GL_TRUE;
+
+ if (write_stencil) {
+ enum pipe_format tex_format;
+ /* can we write to stencil if not fallback */
+ if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
+ goto stencil_fallback;
+
+ tex_format = st_choose_format(st->pipe->screen, base_format(format),
+ PIPE_TEXTURE_2D,
+ 0, PIPE_BIND_SAMPLER_VIEW);
+ if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
+ stencil_format = PIPE_FORMAT_X24S8_USCALED;
+ else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM)
+ stencil_format = PIPE_FORMAT_S8X24_USCALED;
+ else
+ stencil_format = PIPE_FORMAT_S8_USCALED;
+ if (stencil_format == PIPE_FORMAT_NONE)
+ goto stencil_fallback;
+ }
+
+ /* Mesa state should be up to date by now */
+ assert(ctx->NewState == 0x0);
+
+ st_validate_state(st);
+
+ /*
+ * Get vertex/fragment shaders
+ */
+ if (write_depth || write_stencil) {
+ fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);
+
+ driver_fp = fpv->driver_shader;
+
+ driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
+
+ color = ctx->Current.RasterColor;
+ }
+ else {
+ fpv = get_color_fp_variant(st);
+
+ driver_fp = fpv->driver_shader;
+
+ driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
+
+ color = NULL;
+ if (st->pixel_xfer.pixelmap_enabled) {
+ sv[1] = st->pixel_xfer.pixelmap_sampler_view;
+ num_sampler_view++;
+ }
+ }
+
+ /* update fragment program constants */
+ st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
+
+ /* draw with textured quad */
+ {
+ struct pipe_resource *pt
+ = make_texture(st, width, height, format, type, unpack, pixels);
+ if (pt) {
+ sv[0] = st_create_texture_sampler_view(st->pipe, pt);
+
+ if (sv[0]) {
+ if (write_stencil) {
+ sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,
+ stencil_format);
+ num_sampler_view++;
+ }
+
+ draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
+ width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
+ sv,
+ num_sampler_view,
+ driver_vp,
+ driver_fp,
+ color, GL_FALSE, write_depth, write_stencil);
+ pipe_sampler_view_reference(&sv[0], NULL);
+ if (num_sampler_view > 1)
+ pipe_sampler_view_reference(&sv[1], NULL);
+ }
+ pipe_resource_reference(&pt, NULL);
+ }
+ }
+ return;
+
+stencil_fallback:
+ draw_stencil_pixels(ctx, x, y, width, height, format, type,
+ unpack, pixels);
+}
+
+
+
+/**
+ * Software fallback for glCopyPixels(GL_STENCIL).
+ */
+static void
+copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty)
+{
+ struct st_renderbuffer *rbDraw;
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ enum pipe_transfer_usage usage;
+ struct pipe_transfer *ptDraw;
+ ubyte *drawMap;
+ ubyte *buffer;
+ int i;
+
+ buffer = malloc(width * height * sizeof(ubyte));
+ if (!buffer) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)");
+ return;
+ }
+
+ /* Get the dest renderbuffer. If there's a wrapper, use the
+ * underlying renderbuffer.
+ */
+ rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
+ if (rbDraw->Base.Wrapped)
+ rbDraw = st_renderbuffer(rbDraw->Base.Wrapped);
+
+ /* this will do stencil pixel transfer ops */
+ st_read_stencil_pixels(ctx, srcx, srcy, width, height,
+ GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
+ &ctx->DefaultPacking, buffer);
+
+ if (0) {
+ /* debug code: dump stencil values */
+ GLint row, col;
+ for (row = 0; row < height; row++) {
+ printf("%3d: ", row);
+ for (col = 0; col < width; col++) {
+ printf("%02x ", buffer[col + row * width]);
+ }
+ printf("\n");
+ }
+ }
+
+ if (util_format_get_component_bits(rbDraw->format,
+ UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
+ usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ usage = PIPE_TRANSFER_WRITE;
+
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ dsty = rbDraw->Base.Height - dsty - height;
+ }
+
+ ptDraw = pipe_get_transfer(st_context(ctx)->pipe,
+ rbDraw->texture, 0, 0,
+ usage, dstx, dsty,
+ width, height);
+
+ assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);
+ assert(util_format_get_blockheight(ptDraw->resource->format) == 1);
+
+ /* map the stencil buffer */
+ drawMap = pipe_transfer_map(pipe, ptDraw);
+
+ /* draw */
+ /* XXX PixelZoom not handled yet */
+ for (i = 0; i < height; i++) {
+ ubyte *dst;
+ const ubyte *src;
+ int y;
+
+ y = i;
+
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ y = height - y - 1;
+ }
+
+ dst = drawMap + y * ptDraw->stride;
+ src = buffer + i * width;
+
+ switch (ptDraw->resource->format) {
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ {
+ uint *dst4 = (uint *) dst;
+ int j;
+ assert(usage == PIPE_TRANSFER_READ_WRITE);
+ for (j = 0; j < width; j++) {
+ *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);
+ dst4++;
+ }
+ }
+ break;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ {
+ uint *dst4 = (uint *) dst;
+ int j;
+ assert(usage == PIPE_TRANSFER_READ_WRITE);
+ for (j = 0; j < width; j++) {
+ *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);
+ dst4++;
+ }
+ }
+ break;
+ case PIPE_FORMAT_S8_USCALED:
+ assert(usage == PIPE_TRANSFER_WRITE);
+ memcpy(dst, src, width);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ free(buffer);
+
+ /* unmap the stencil buffer */
+ pipe_transfer_unmap(pipe, ptDraw);
+ pipe->transfer_destroy(pipe, ptDraw);
+}
+
+
+/** Do the src/dest regions overlap? */
+static GLboolean
+regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY,
+ GLsizei width, GLsizei height)
+{
+ if (srcX + width <= dstX ||
+ dstX + width <= srcX ||
+ srcY + height <= dstY ||
+ dstY + height <= srcY)
+ return GL_FALSE;
+ else
+ return GL_TRUE;
+}
+
+
+/**
+ * Try to do a glCopyPixels for simple cases with a blit by calling
+ * pipe->resource_copy_region().
+ *
+ * We can do this when we're copying color pixels (depth/stencil
+ * eventually) with no pixel zoom, no pixel transfer ops, no
+ * per-fragment ops, the src/dest regions don't overlap and the
+ * src/dest pixel formats are the same.
+ */
+static GLboolean
+blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty, GLenum type)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct gl_pixelstore_attrib pack, unpack;
+ GLint readX, readY, readW, readH;
+
+ if (type == GL_COLOR &&
+ ctx->Pixel.ZoomX == 1.0 &&
+ ctx->Pixel.ZoomY == 1.0 &&
+ ctx->_ImageTransferState == 0x0 &&
+ !ctx->Color.BlendEnabled &&
+ !ctx->Color.AlphaEnabled &&
+ !ctx->Depth.Test &&
+ !ctx->Fog.Enabled &&
+ !ctx->Stencil.Enabled &&
+ !ctx->FragmentProgram.Enabled &&
+ !ctx->VertexProgram.Enabled &&
+ !ctx->Shader.CurrentFragmentProgram &&
+ st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) &&
+ ctx->DrawBuffer->_NumColorDrawBuffers == 1) {
+ struct st_renderbuffer *rbRead, *rbDraw;
+ GLint drawX, drawY;
+
+ /*
+ * Clip the read region against the src buffer bounds.
+ * We'll still allocate a temporary buffer/texture for the original
+ * src region size but we'll only read the region which is on-screen.
+ * This may mean that we draw garbage pixels into the dest region, but
+ * that's expected.
+ */
+ readX = srcx;
+ readY = srcy;
+ readW = width;
+ readH = height;
+ pack = ctx->DefaultPacking;
+ if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack))
+ return GL_TRUE; /* all done */
+
+ /* clip against dest buffer bounds and scissor box */
+ drawX = dstx + pack.SkipPixels;
+ drawY = dsty + pack.SkipRows;
+ unpack = pack;
+ if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack))
+ return GL_TRUE; /* all done */
+
+ readX = readX - pack.SkipPixels + unpack.SkipPixels;
+ readY = readY - pack.SkipRows + unpack.SkipRows;
+
+ rbRead = st_get_color_read_renderbuffer(ctx);
+ rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
+
+ if ((rbRead != rbDraw ||
+ !regions_overlap(readX, readY, drawX, drawY, readW, readH)) &&
+ rbRead->Base.Format == rbDraw->Base.Format) {
+ struct pipe_box srcBox;
+
+ /* flip src/dst position if needed */
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ /* both buffers will have the same orientation */
+ readY = ctx->ReadBuffer->Height - readY - readH;
+ drawY = ctx->DrawBuffer->Height - drawY - readH;
+ }
+
+ u_box_2d(readX, readY, readW, readH, &srcBox);
+
+ pipe->resource_copy_region(pipe,
+ rbDraw->texture, 0, drawX, drawY, 0,
+ rbRead->texture, 0, &srcBox);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+static void
+st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty, GLenum type)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct st_renderbuffer *rbRead;
+ void *driver_vp, *driver_fp;
+ struct pipe_resource *pt;
+ struct pipe_sampler_view *sv[2];
+ int num_sampler_view = 1;
+ GLfloat *color;
+ enum pipe_format srcFormat, texFormat;
+ GLboolean invertTex = GL_FALSE;
+ GLint readX, readY, readW, readH;
+ GLuint sample_count;
+ struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
+ struct st_fp_variant *fpv;
+
+ st_validate_state(st);
+
+ if (type == GL_STENCIL) {
+ /* can't use texturing to do stencil */
+ copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
+ return;
+ }
+
+ if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type))
+ return;
+
+ /*
+ * The subsequent code implements glCopyPixels by copying the source
+ * pixels into a temporary texture that's then applied to a textured quad.
+ * When we draw the textured quad, all the usual per-fragment operations
+ * are handled.
+ */
+
+
+ /*
+ * Get vertex/fragment shaders
+ */
+ if (type == GL_COLOR) {
+ rbRead = st_get_color_read_renderbuffer(ctx);
+ color = NULL;
+
+ fpv = get_color_fp_variant(st);
+ driver_fp = fpv->driver_shader;
+
+ driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
+
+ if (st->pixel_xfer.pixelmap_enabled) {
+ sv[1] = st->pixel_xfer.pixelmap_sampler_view;
+ num_sampler_view++;
+ }
+ }
+ else {
+ assert(type == GL_DEPTH);
+ rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
+ color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
+
+ fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
+ driver_fp = fpv->driver_shader;
+
+ driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
+ }
+
+ /* update fragment program constants */
+ st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
+
+
+ if (rbRead->Base.Wrapped)
+ rbRead = st_renderbuffer(rbRead->Base.Wrapped);
+
+ sample_count = rbRead->texture->nr_samples;
+ /* I believe this would be legal, presumably would need to do a resolve
+ for color, and for depth/stencil spec says to just use one of the
+ depth/stencil samples per pixel? Need some transfer clarifications. */
+ assert(sample_count < 2);
+
+ srcFormat = rbRead->texture->format;
+
+ if (screen->is_format_supported(screen, srcFormat, st->internal_target,
+ sample_count,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ texFormat = srcFormat;
+ }
+ else {
+ /* srcFormat can't be used as a texture format */
+ if (type == GL_DEPTH) {
+ texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
+ st->internal_target, sample_count,
+ PIPE_BIND_DEPTH_STENCIL);
+ assert(texFormat != PIPE_FORMAT_NONE);
+ }
+ else {
+ /* default color format */
+ texFormat = st_choose_format(screen, GL_RGBA, st->internal_target,
+ sample_count, PIPE_BIND_SAMPLER_VIEW);
+ assert(texFormat != PIPE_FORMAT_NONE);
+ }
+ }
+
+ /* Invert src region if needed */
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcy = ctx->ReadBuffer->Height - srcy - height;
+ invertTex = !invertTex;
+ }
+
+ /* Clip the read region against the src buffer bounds.
+ * We'll still allocate a temporary buffer/texture for the original
+ * src region size but we'll only read the region which is on-screen.
+ * This may mean that we draw garbage pixels into the dest region, but
+ * that's expected.
+ */
+ readX = srcx;
+ readY = srcy;
+ readW = width;
+ readH = height;
+ _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
+ readW = MAX2(0, readW);
+ readH = MAX2(0, readH);
+
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, texFormat);
+ if (!pt)
+ return;
+
+ sv[0] = st_create_texture_sampler_view(st->pipe, pt);
+ if (!sv[0]) {
+ pipe_resource_reference(&pt, NULL);
+ return;
+ }
+
+ /* Make temporary texture which is a copy of the src region.
+ */
+ if (srcFormat == texFormat) {
+ struct pipe_box src_box;
+ u_box_2d(readX, readY, readW, readH, &src_box);
+ /* copy source framebuffer surface into mipmap/texture */
+ pipe->resource_copy_region(pipe,
+ pt, /* dest tex */
+ 0,
+ pack.SkipPixels, pack.SkipRows, 0, /* dest pos */
+ rbRead->texture, /* src tex */
+ 0,
+ &src_box);
+
+ }
+ else {
+ /* CPU-based fallback/conversion */
+ struct pipe_transfer *ptRead =
+ pipe_get_transfer(st->pipe, rbRead->texture,
+ 0, 0, /* level, layer */
+ PIPE_TRANSFER_READ,
+ readX, readY, readW, readH);
+ struct pipe_transfer *ptTex;
+ enum pipe_transfer_usage transfer_usage;
+
+ if (ST_DEBUG & DEBUG_FALLBACK)
+ debug_printf("%s: fallback processing\n", __FUNCTION__);
+
+ if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
+ transfer_usage = PIPE_TRANSFER_READ_WRITE;
+ else
+ transfer_usage = PIPE_TRANSFER_WRITE;
+
+ ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,
+ 0, 0, width, height);
+
+ /* copy image from ptRead surface to ptTex surface */
+ if (type == GL_COLOR) {
+ /* alternate path using get/put_tile() */
+ GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
+ enum pipe_format readFormat, drawFormat;
+ readFormat = util_format_linear(rbRead->texture->format);
+ drawFormat = util_format_linear(pt->format);
+ pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH,
+ readFormat, buf);
+ pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
+ readW, readH, drawFormat, buf);
+ free(buf);
+ }
+ else {
+ /* GL_DEPTH */
+ GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
+ pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf);
+ pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
+ readW, readH, buf);
+ free(buf);
+ }
+
+ pipe->transfer_destroy(pipe, ptRead);
+ pipe->transfer_destroy(pipe, ptTex);
+ }
+
+ /* OK, the texture 'pt' contains the src image/pixels. Now draw a
+ * textured quad with that texture.
+ */
+ draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
+ width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
+ sv,
+ num_sampler_view,
+ driver_vp,
+ driver_fp,
+ color, invertTex, GL_FALSE, GL_FALSE);
+
+ pipe_resource_reference(&pt, NULL);
+ pipe_sampler_view_reference(&sv[0], NULL);
+}
+
+
+
+void st_init_drawpixels_functions(struct dd_function_table *functions)
+{
+ functions->DrawPixels = st_DrawPixels;
+ functions->CopyPixels = st_CopyPixels;
+}
+
+
+void
+st_destroy_drawpix(struct st_context *st)
+{
+ GLuint i;
+
+ for (i = 0; i < Elements(st->drawpix.shaders); i++) {
+ if (st->drawpix.shaders[i])
+ _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);
+ }
+
+ st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
+ if (st->drawpix.vert_shaders[0])
+ ureg_free_tokens(st->drawpix.vert_shaders[0]);
+ if (st->drawpix.vert_shaders[1])
+ ureg_free_tokens(st->drawpix.vert_shaders[1]);
+}
+
+#endif /* FEATURE_drawpix */
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index 2934f9ffb..7e124186c 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -84,6 +84,7 @@ st_renderbuffer_alloc_storage(struct gl_context * ctx,
strb->Base.Width = width;
strb->Base.Height = height;
strb->Base.Format = st_pipe_format_to_mesa_format(format);
+ strb->Base._BaseFormat = _mesa_base_fbo_format(ctx, internalFormat);
strb->Base.DataType = st_format_datatype(format);
strb->defined = GL_FALSE; /* undefined contents now */
@@ -234,6 +235,7 @@ st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw)
strb->Base.ClassID = 0x4242; /* just a unique value */
strb->Base.NumSamples = samples;
strb->Base.Format = st_pipe_format_to_mesa_format(format);
+ strb->Base._BaseFormat = _mesa_get_format_base_format(strb->Base.Format);
strb->Base.DataType = st_format_datatype(format);
strb->format = format;
strb->software = sw;
diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index ff04f3364..c0d1bd94a 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -412,125 +412,6 @@ strip_texture_border(GLint border,
/**
- * Try to do texture compression via rendering. If the Gallium driver
- * can render into a compressed surface this will allow us to do texture
- * compression.
- * \return GL_TRUE for success, GL_FALSE for failure
- */
-static GLboolean
-compress_with_blit(struct gl_context * ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type, const void *pixels,
- const struct gl_pixelstore_attrib *unpack,
- struct gl_texture_image *texImage)
-{
- const GLuint dstImageOffsets[1] = {0};
- struct st_texture_image *stImage = st_texture_image(texImage);
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct pipe_screen *screen = pipe->screen;
- gl_format mesa_format;
- struct pipe_resource templ;
- struct pipe_resource *src_tex;
- struct pipe_sampler_view view_templ;
- struct pipe_sampler_view *src_view;
- struct pipe_surface *dst_surface, surf_tmpl;
- struct pipe_transfer *tex_xfer;
- void *map;
-
- if (!stImage->pt) {
- /* XXX: Can this happen? Should we assert? */
- return GL_FALSE;
- }
-
- /* get destination surface (in the compressed texture) */
- memset(&surf_tmpl, 0, sizeof(surf_tmpl));
- surf_tmpl.format = stImage->pt->format;
- surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
- surf_tmpl.u.tex.level = stImage->level;
- surf_tmpl.u.tex.first_layer = stImage->face;
- surf_tmpl.u.tex.last_layer = stImage->face;
- dst_surface = pipe->create_surface(pipe, stImage->pt, &surf_tmpl);
- if (!dst_surface) {
- /* can't render into this format (or other problem) */
- return GL_FALSE;
- }
-
- /* Choose format for the temporary RGBA texture image.
- */
- mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type);
- assert(mesa_format);
- if (!mesa_format)
- return GL_FALSE;
-
- /* Create the temporary source texture
- */
- memset(&templ, 0, sizeof(templ));
- templ.target = st->internal_target;
- templ.format = st_mesa_format_to_pipe_format(mesa_format);
- templ.width0 = width;
- templ.height0 = height;
- templ.depth0 = 1;
- templ.array_size = 1;
- templ.last_level = 0;
- templ.usage = PIPE_USAGE_DEFAULT;
- templ.bind = PIPE_BIND_SAMPLER_VIEW;
- src_tex = screen->resource_create(screen, &templ);
-
- if (!src_tex)
- return GL_FALSE;
-
- /* Put user's tex data into the temporary texture
- */
- tex_xfer = pipe_get_transfer(st_context(ctx)->pipe, src_tex,
- 0, 0, /* layer, level are zero */
- PIPE_TRANSFER_WRITE,
- 0, 0, width, height); /* x, y, w, h */
- map = pipe_transfer_map(pipe, tex_xfer);
-
- _mesa_texstore(ctx, 2, GL_RGBA, mesa_format,
- map, /* dest ptr */
- 0, 0, 0, /* dest x/y/z offset */
- tex_xfer->stride, /* dest row stride (bytes) */
- dstImageOffsets, /* image offsets (for 3D only) */
- width, height, 1, /* size */
- format, type, /* source format/type */
- pixels, /* source data */
- unpack); /* source data packing */
-
- pipe_transfer_unmap(pipe, tex_xfer);
- pipe->transfer_destroy(pipe, tex_xfer);
-
- /* Create temporary sampler view */
- u_sampler_view_default_template(&view_templ,
- src_tex,
- src_tex->format);
- src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ);
-
-
- /* copy / compress image */
- util_blit_pixels_tex(st->blit,
- src_view, /* sampler view (src) */
- 0, 0, /* src x0, y0 */
- width, height, /* src x1, y1 */
- dst_surface, /* pipe_surface (dst) */
- xoffset, yoffset, /* dst x0, y0 */
- xoffset + width, /* dst x1 */
- yoffset + height, /* dst y1 */
- 0.0, /* z */
- PIPE_TEX_MIPFILTER_NEAREST);
-
- pipe_surface_reference(&dst_surface, NULL);
- pipe_resource_reference(&src_tex, NULL);
- pipe_sampler_view_reference(&src_view, NULL);
-
- return GL_TRUE;
-}
-
-
-/**
* Do glTexImage1/2/3D().
*/
static void
@@ -547,7 +428,6 @@ st_TexImage(struct gl_context * ctx,
GLsizei imageSize, GLboolean compressed_src)
{
struct st_context *st = st_context(ctx);
- struct pipe_screen *screen = st->pipe->screen;
struct st_texture_object *stObj = st_texture_object(texObj);
struct st_texture_image *stImage = st_texture_image(texImage);
GLuint dstRowStride = 0;
@@ -674,24 +554,6 @@ st_TexImage(struct gl_context * ctx,
pixels, unpack, "glTexImage");
}
- /* See if we can do texture compression with a blit/render.
- */
- if (!compressed_src &&
- !ctx->Mesa_DXTn &&
- _mesa_is_format_compressed(texImage->TexFormat) &&
- screen->is_format_supported(screen,
- stImage->pt->format,
- stImage->pt->target, 0,
- PIPE_BIND_RENDER_TARGET, 0)) {
- if (!pixels)
- goto done;
-
- if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
- format, type, pixels, unpack, texImage)) {
- goto done;
- }
- }
-
/*
* Prepare to store the texture data. Either map the gallium texture buffer
* memory or malloc space for it.
@@ -1080,7 +942,6 @@ st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
struct gl_texture_image *texImage)
{
struct st_context *st = st_context(ctx);
- struct pipe_screen *screen = st->pipe->screen;
struct st_texture_image *stImage = st_texture_image(texImage);
GLuint dstRowStride;
const GLuint srcImageStride =
@@ -1100,22 +961,6 @@ st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
if (!pixels)
return;
- /* See if we can do texture compression with a blit/render.
- */
- if (!ctx->Mesa_DXTn &&
- _mesa_is_format_compressed(texImage->TexFormat) &&
- screen->is_format_supported(screen,
- stImage->pt->format,
- stImage->pt->target, 0,
- PIPE_BIND_RENDER_TARGET, 0)) {
- if (compress_with_blit(ctx, target, level,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, pixels, packing, texImage)) {
- goto done;
- }
- }
-
/* Map buffer if necessary. Need to lock to prevent other contexts
* from uploading the buffer under us.
*/
diff --git a/mesalib/src/mesa/state_tracker/st_draw.c b/mesalib/src/mesa/state_tracker/st_draw.c
index 830e3e3c1..564d63483 100644
--- a/mesalib/src/mesa/state_tracker/st_draw.c
+++ b/mesalib/src/mesa/state_tracker/st_draw.c
@@ -1,749 +1,751 @@
-/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/*
- * This file implements the st_draw_vbo() function which is called from
- * Mesa's VBO module. All point/line/triangle rendering is done through
- * this function whether the user called glBegin/End, glDrawArrays,
- * glDrawElements, glEvalMesh, or glCalList, etc.
- *
- * We basically convert the VBO's vertex attribute/array information into
- * Gallium vertex state, bind the vertex buffer objects and call
- * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().
- *
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/prog_uniform.h"
-
-#include "vbo/vbo.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_bufferobjects.h"
-#include "st_draw.h"
-#include "st_program.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_prim.h"
-#include "util/u_draw_quad.h"
-#include "draw/draw_context.h"
-#include "cso_cache/cso_context.h"
-
-
-static GLuint double_types[4] = {
- PIPE_FORMAT_R64_FLOAT,
- PIPE_FORMAT_R64G64_FLOAT,
- PIPE_FORMAT_R64G64B64_FLOAT,
- PIPE_FORMAT_R64G64B64A64_FLOAT
-};
-
-static GLuint float_types[4] = {
- PIPE_FORMAT_R32_FLOAT,
- PIPE_FORMAT_R32G32_FLOAT,
- PIPE_FORMAT_R32G32B32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
-};
-
-static GLuint half_float_types[4] = {
- PIPE_FORMAT_R16_FLOAT,
- PIPE_FORMAT_R16G16_FLOAT,
- PIPE_FORMAT_R16G16B16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
-};
-
-static GLuint uint_types_norm[4] = {
- PIPE_FORMAT_R32_UNORM,
- PIPE_FORMAT_R32G32_UNORM,
- PIPE_FORMAT_R32G32B32_UNORM,
- PIPE_FORMAT_R32G32B32A32_UNORM
-};
-
-static GLuint uint_types_scale[4] = {
- PIPE_FORMAT_R32_USCALED,
- PIPE_FORMAT_R32G32_USCALED,
- PIPE_FORMAT_R32G32B32_USCALED,
- PIPE_FORMAT_R32G32B32A32_USCALED
-};
-
-static GLuint int_types_norm[4] = {
- PIPE_FORMAT_R32_SNORM,
- PIPE_FORMAT_R32G32_SNORM,
- PIPE_FORMAT_R32G32B32_SNORM,
- PIPE_FORMAT_R32G32B32A32_SNORM
-};
-
-static GLuint int_types_scale[4] = {
- PIPE_FORMAT_R32_SSCALED,
- PIPE_FORMAT_R32G32_SSCALED,
- PIPE_FORMAT_R32G32B32_SSCALED,
- PIPE_FORMAT_R32G32B32A32_SSCALED
-};
-
-static GLuint ushort_types_norm[4] = {
- PIPE_FORMAT_R16_UNORM,
- PIPE_FORMAT_R16G16_UNORM,
- PIPE_FORMAT_R16G16B16_UNORM,
- PIPE_FORMAT_R16G16B16A16_UNORM
-};
-
-static GLuint ushort_types_scale[4] = {
- PIPE_FORMAT_R16_USCALED,
- PIPE_FORMAT_R16G16_USCALED,
- PIPE_FORMAT_R16G16B16_USCALED,
- PIPE_FORMAT_R16G16B16A16_USCALED
-};
-
-static GLuint short_types_norm[4] = {
- PIPE_FORMAT_R16_SNORM,
- PIPE_FORMAT_R16G16_SNORM,
- PIPE_FORMAT_R16G16B16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM
-};
-
-static GLuint short_types_scale[4] = {
- PIPE_FORMAT_R16_SSCALED,
- PIPE_FORMAT_R16G16_SSCALED,
- PIPE_FORMAT_R16G16B16_SSCALED,
- PIPE_FORMAT_R16G16B16A16_SSCALED
-};
-
-static GLuint ubyte_types_norm[4] = {
- PIPE_FORMAT_R8_UNORM,
- PIPE_FORMAT_R8G8_UNORM,
- PIPE_FORMAT_R8G8B8_UNORM,
- PIPE_FORMAT_R8G8B8A8_UNORM
-};
-
-static GLuint ubyte_types_scale[4] = {
- PIPE_FORMAT_R8_USCALED,
- PIPE_FORMAT_R8G8_USCALED,
- PIPE_FORMAT_R8G8B8_USCALED,
- PIPE_FORMAT_R8G8B8A8_USCALED
-};
-
-static GLuint byte_types_norm[4] = {
- PIPE_FORMAT_R8_SNORM,
- PIPE_FORMAT_R8G8_SNORM,
- PIPE_FORMAT_R8G8B8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM
-};
-
-static GLuint byte_types_scale[4] = {
- PIPE_FORMAT_R8_SSCALED,
- PIPE_FORMAT_R8G8_SSCALED,
- PIPE_FORMAT_R8G8B8_SSCALED,
- PIPE_FORMAT_R8G8B8A8_SSCALED
-};
-
-static GLuint fixed_types[4] = {
- PIPE_FORMAT_R32_FIXED,
- PIPE_FORMAT_R32G32_FIXED,
- PIPE_FORMAT_R32G32B32_FIXED,
- PIPE_FORMAT_R32G32B32A32_FIXED
-};
-
-
-
-/**
- * Return a PIPE_FORMAT_x for the given GL datatype and size.
- */
-GLuint
-st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
- GLboolean normalized)
-{
- assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
- type == GL_FIXED || type == GL_HALF_FLOAT);
- assert(size >= 1);
- assert(size <= 4);
- assert(format == GL_RGBA || format == GL_BGRA);
-
- if (format == GL_BGRA) {
- /* this is an odd-ball case */
- assert(type == GL_UNSIGNED_BYTE);
- assert(normalized);
- return PIPE_FORMAT_B8G8R8A8_UNORM;
- }
-
- if (normalized) {
- switch (type) {
- case GL_DOUBLE: return double_types[size-1];
- case GL_FLOAT: return float_types[size-1];
- case GL_HALF_FLOAT: return half_float_types[size-1];
- case GL_INT: return int_types_norm[size-1];
- case GL_SHORT: return short_types_norm[size-1];
- case GL_BYTE: return byte_types_norm[size-1];
- case GL_UNSIGNED_INT: return uint_types_norm[size-1];
- case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
- case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
- case GL_FIXED: return fixed_types[size-1];
- default: assert(0); return 0;
- }
- }
- else {
- switch (type) {
- case GL_DOUBLE: return double_types[size-1];
- case GL_FLOAT: return float_types[size-1];
- case GL_HALF_FLOAT: return half_float_types[size-1];
- case GL_INT: return int_types_scale[size-1];
- case GL_SHORT: return short_types_scale[size-1];
- case GL_BYTE: return byte_types_scale[size-1];
- case GL_UNSIGNED_INT: return uint_types_scale[size-1];
- case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
- case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
- case GL_FIXED: return fixed_types[size-1];
- default: assert(0); return 0;
- }
- }
- return 0; /* silence compiler warning */
-}
-
-
-
-
-
-/**
- * Examine the active arrays to determine if we have interleaved
- * vertex arrays all living in one VBO, or all living in user space.
- * \param userSpace returns whether the arrays are in user space.
- */
-static GLboolean
-is_interleaved_arrays(const struct st_vertex_program *vp,
- const struct st_vp_variant *vpv,
- const struct gl_client_array **arrays)
-{
- GLuint attr;
- const struct gl_buffer_object *firstBufObj = NULL;
- GLint firstStride = -1;
- const GLubyte *client_addr = NULL;
-
- for (attr = 0; attr < vpv->num_inputs; attr++) {
- const GLuint mesaAttr = vp->index_to_input[attr];
- const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj;
- const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */
-
- if (firstStride < 0) {
- firstStride = stride;
- }
- else if (firstStride != stride) {
- return GL_FALSE;
- }
-
- if (!bufObj || !bufObj->Name) {
- /* Try to detect if the client-space arrays are
- * "close" to each other.
- */
- if (!client_addr) {
- client_addr = arrays[mesaAttr]->Ptr;
- }
- else if (abs(arrays[mesaAttr]->Ptr - client_addr) > firstStride) {
- /* arrays start too far apart */
- return GL_FALSE;
- }
- }
- else if (!firstBufObj) {
- firstBufObj = bufObj;
- }
- else if (bufObj != firstBufObj) {
- return GL_FALSE;
- }
- }
-
- return GL_TRUE;
-}
-
-
-/**
- * Set up for drawing interleaved arrays that all live in one VBO
- * or all live in user space.
- * \param vbuffer returns vertex buffer info
- * \param velements returns vertex element info
- */
-static void
-setup_interleaved_attribs(struct gl_context *ctx,
- const struct st_vertex_program *vp,
- const struct st_vp_variant *vpv,
- const struct gl_client_array **arrays,
- struct pipe_vertex_buffer *vbuffer,
- struct pipe_vertex_element velements[],
- unsigned max_index)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- GLuint attr;
- const GLubyte *low_addr = NULL;
-
- /* Find the lowest address. */
- for (attr = 0; attr < vpv->num_inputs; attr++) {
- const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
-
- low_addr = !low_addr ? start : MIN2(low_addr, start);
- }
-
- for (attr = 0; attr < vpv->num_inputs; attr++) {
- const GLuint mesaAttr = vp->index_to_input[attr];
- struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
- struct st_buffer_object *stobj = st_buffer_object(bufobj);
- GLsizei stride = arrays[mesaAttr]->StrideB;
-
- if (attr == 0) {
- if (bufobj && bufobj->Name) {
- vbuffer->buffer = NULL;
- pipe_resource_reference(&vbuffer->buffer, stobj->buffer);
- vbuffer->buffer_offset = pointer_to_offset(low_addr);
- } else {
- vbuffer->buffer =
- pipe_user_buffer_create(pipe->screen, (void*)low_addr,
- stride * (max_index + 1),
- PIPE_BIND_VERTEX_BUFFER);
- vbuffer->buffer_offset = 0;
-
- /* Track user vertex buffers. */
- pipe_resource_reference(&st->user_vb[0], vbuffer->buffer);
- st->user_vb_stride[0] = stride;
- st->num_user_vbs = 1;
- }
- vbuffer->stride = stride; /* in bytes */
- }
-
- velements[attr].src_offset =
- (unsigned) (arrays[mesaAttr]->Ptr - low_addr);
- velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
- velements[attr].vertex_buffer_index = 0;
- velements[attr].src_format =
- st_pipe_vertex_format(arrays[mesaAttr]->Type,
- arrays[mesaAttr]->Size,
- arrays[mesaAttr]->Format,
- arrays[mesaAttr]->Normalized);
- assert(velements[attr].src_format);
- }
-}
-
-
-/**
- * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
- * vertex attribute.
- * \param vbuffer returns vertex buffer info
- * \param velements returns vertex element info
- */
-static void
-setup_non_interleaved_attribs(struct gl_context *ctx,
- const struct st_vertex_program *vp,
- const struct st_vp_variant *vpv,
- const struct gl_client_array **arrays,
- struct pipe_vertex_buffer vbuffer[],
- struct pipe_vertex_element velements[],
- unsigned max_index)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- GLuint attr;
-
- for (attr = 0; attr < vpv->num_inputs; attr++) {
- const GLuint mesaAttr = vp->index_to_input[attr];
- struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
- GLsizei stride = arrays[mesaAttr]->StrideB;
-
- if (bufobj && bufobj->Name) {
- /* Attribute data is in a VBO.
- * Recall that for VBOs, the gl_client_array->Ptr field is
- * really an offset from the start of the VBO, not a pointer.
- */
- struct st_buffer_object *stobj = st_buffer_object(bufobj);
- assert(stobj->buffer);
-
- vbuffer[attr].buffer = NULL;
- pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);
- vbuffer[attr].buffer_offset = pointer_to_offset(arrays[mesaAttr]->Ptr);
- }
- else {
- /* wrap user data */
- if (arrays[mesaAttr]->Ptr) {
- vbuffer[attr].buffer =
- pipe_user_buffer_create(pipe->screen,
- (void *) arrays[mesaAttr]->Ptr,
- stride * (max_index + 1),
- PIPE_BIND_VERTEX_BUFFER);
- }
- else {
- /* no array, use ctx->Current.Attrib[] value */
- uint bytes = sizeof(ctx->Current.Attrib[0]);
- vbuffer[attr].buffer =
- pipe_user_buffer_create(pipe->screen,
- (void *) ctx->Current.Attrib[mesaAttr],
- bytes,
- PIPE_BIND_VERTEX_BUFFER);
- stride = 0;
- }
-
- vbuffer[attr].buffer_offset = 0;
-
- /* Track user vertex buffers. */
- pipe_resource_reference(&st->user_vb[attr], vbuffer->buffer);
- st->user_vb_stride[attr] = stride;
- st->num_user_vbs = MAX2(st->num_user_vbs, attr+1);
- }
-
- /* common-case setup */
- vbuffer[attr].stride = stride; /* in bytes */
-
- velements[attr].src_offset = 0;
- velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
- velements[attr].vertex_buffer_index = attr;
- velements[attr].src_format
- = st_pipe_vertex_format(arrays[mesaAttr]->Type,
- arrays[mesaAttr]->Size,
- arrays[mesaAttr]->Format,
- arrays[mesaAttr]->Normalized);
- assert(velements[attr].src_format);
- }
-}
-
-
-static void
-setup_index_buffer(struct gl_context *ctx,
- const struct _mesa_index_buffer *ib,
- struct pipe_index_buffer *ibuffer)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
-
- memset(ibuffer, 0, sizeof(*ibuffer));
- if (ib) {
- struct gl_buffer_object *bufobj = ib->obj;
-
- switch (ib->type) {
- case GL_UNSIGNED_INT:
- ibuffer->index_size = 4;
- break;
- case GL_UNSIGNED_SHORT:
- ibuffer->index_size = 2;
- break;
- case GL_UNSIGNED_BYTE:
- ibuffer->index_size = 1;
- break;
- default:
- assert(0);
- return;
- }
-
- /* get/create the index buffer object */
- if (bufobj && bufobj->Name) {
- /* elements/indexes are in a real VBO */
- struct st_buffer_object *stobj = st_buffer_object(bufobj);
- pipe_resource_reference(&ibuffer->buffer, stobj->buffer);
- ibuffer->offset = pointer_to_offset(ib->ptr);
- }
- else {
- /* element/indicies are in user space memory */
- ibuffer->buffer =
- pipe_user_buffer_create(pipe->screen, (void *) ib->ptr,
- ib->count * ibuffer->index_size,
- PIPE_BIND_INDEX_BUFFER);
- }
- }
-}
-
-/**
- * Prior to drawing, check that any uniforms referenced by the
- * current shader have been set. If a uniform has not been set,
- * issue a warning.
- */
-static void
-check_uniforms(struct gl_context *ctx)
-{
- struct gl_shader_program *shProg[3] = {
- ctx->Shader.CurrentVertexProgram,
- ctx->Shader.CurrentGeometryProgram,
- ctx->Shader.CurrentFragmentProgram,
- };
- unsigned j;
-
- for (j = 0; j < 3; j++) {
- unsigned i;
-
- if (shProg[j] == NULL || !shProg[j]->LinkStatus)
- continue;
-
- for (i = 0; i < shProg[j]->Uniforms->NumUniforms; i++) {
- const struct gl_uniform *u = &shProg[j]->Uniforms->Uniforms[i];
- if (!u->Initialized) {
- _mesa_warning(ctx,
- "Using shader with uninitialized uniform: %s",
- u->Name);
- }
- }
- }
-}
-
-
-/**
- * Translate OpenGL primtive type (GL_POINTS, GL_TRIANGLE_STRIP, etc) to
- * the corresponding Gallium type.
- */
-static unsigned
-translate_prim(const struct gl_context *ctx, unsigned prim)
-{
- /* GL prims should match Gallium prims, spot-check a few */
- assert(GL_POINTS == PIPE_PRIM_POINTS);
- assert(GL_QUADS == PIPE_PRIM_QUADS);
- assert(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);
-
- /* Avoid quadstrips if it's easy to do so:
- * Note: it's imporant to do the correct trimming if we change the prim type!
- * We do that wherever this function is called.
- */
- if (prim == GL_QUAD_STRIP &&
- ctx->Light.ShadeModel != GL_FLAT &&
- ctx->Polygon.FrontMode == GL_FILL &&
- ctx->Polygon.BackMode == GL_FILL)
- prim = GL_TRIANGLE_STRIP;
-
- return prim;
-}
-
-
-static void
-st_validate_varrays(struct gl_context *ctx,
- const struct gl_client_array **arrays,
- unsigned max_index)
-{
- struct st_context *st = st_context(ctx);
- const struct st_vertex_program *vp;
- const struct st_vp_variant *vpv;
- struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
- struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
- unsigned num_vbuffers, num_velements;
- GLuint attr;
- unsigned i;
-
- /* must get these after state validation! */
- vp = st->vp;
- vpv = st->vp_variant;
-
- memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
-
- /* Unreference any user vertex buffers. */
- for (i = 0; i < st->num_user_vbs; i++) {
- pipe_resource_reference(&st->user_vb[i], NULL);
- }
- st->num_user_vbs = 0;
-
- /*
- * Setup the vbuffer[] and velements[] arrays.
- */
- if (is_interleaved_arrays(vp, vpv, arrays)) {
- setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,
- max_index);
- num_vbuffers = 1;
- num_velements = vpv->num_inputs;
- if (num_velements == 0)
- num_vbuffers = 0;
- }
- else {
- setup_non_interleaved_attribs(ctx, vp, vpv, arrays,
- vbuffer, velements, max_index);
- num_vbuffers = vpv->num_inputs;
- num_velements = vpv->num_inputs;
- }
-
- cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
- cso_set_vertex_elements(st->cso_context, num_velements, velements);
-
- /* unreference buffers (frees wrapped user-space buffer objects)
- * This is OK, because the pipe driver should reference buffers by itself
- * in set_vertex_buffers. */
- for (attr = 0; attr < num_vbuffers; attr++) {
- pipe_resource_reference(&vbuffer[attr].buffer, NULL);
- assert(!vbuffer[attr].buffer);
- }
-}
-
-
-/**
- * This function gets plugged into the VBO module and is called when
- * we have something to render.
- * Basically, translate the information into the format expected by gallium.
- */
-void
-st_draw_vbo(struct gl_context *ctx,
- const struct gl_client_array **arrays,
- const struct _mesa_prim *prims,
- GLuint nr_prims,
- const struct _mesa_index_buffer *ib,
- GLboolean index_bounds_valid,
- GLuint min_index,
- GLuint max_index)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct pipe_index_buffer ibuffer;
- struct pipe_draw_info info;
- unsigned i;
- GLboolean new_array =
- st->dirty.st && (st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;
-
- /* Mesa core state should have been validated already */
- assert(ctx->NewState == 0x0);
-
- if (ib) {
- /* Gallium probably doesn't want this in some cases. */
- if (!index_bounds_valid)
- if (!vbo_all_varyings_in_vbos(arrays))
- vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
- } else {
- /* Get min/max index for non-indexed drawing. */
- min_index = ~0;
- max_index = 0;
-
- for (i = 0; i < nr_prims; i++) {
- min_index = MIN2(min_index, prims[i].start);
- max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);
- }
- }
-
- /* Validate state. */
- if (st->dirty.st) {
- GLboolean vertDataEdgeFlags;
-
- /* sanity check for pointer arithmetic below */
- assert(sizeof(arrays[0]->Ptr[0]) == 1);
-
- vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&
- arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;
- if (vertDataEdgeFlags != st->vertdata_edgeflags) {
- st->vertdata_edgeflags = vertDataEdgeFlags;
- st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;
- }
-
- st_validate_state(st);
-
- if (new_array) {
- st_validate_varrays(ctx, arrays, max_index);
- }
-
-#if 0
- if (MESA_VERBOSE & VERBOSE_GLSL) {
- check_uniforms(ctx);
- }
-#else
- (void) check_uniforms;
-#endif
- }
-
- /* Notify the driver that the content of user buffers may have been
- * changed. */
- if (!new_array && st->num_user_vbs) {
- for (i = 0; i < st->num_user_vbs; i++) {
- if (st->user_vb[i]) {
- unsigned stride = st->user_vb_stride[i];
-
- if (stride) {
- pipe->redefine_user_buffer(pipe, st->user_vb[i],
- min_index * stride,
- (max_index + 1 - min_index) * stride);
- } else {
- /* stride == 0 */
- pipe->redefine_user_buffer(pipe, st->user_vb[i],
- 0, st->user_vb[i]->width0);
- }
- }
- }
- }
-
- setup_index_buffer(ctx, ib, &ibuffer);
- pipe->set_index_buffer(pipe, &ibuffer);
-
- util_draw_init_info(&info);
- if (ib) {
- info.indexed = TRUE;
- if (min_index != ~0 && max_index != ~0) {
- info.min_index = min_index;
- info.max_index = max_index;
- }
- }
-
- info.primitive_restart = st->ctx->Array.PrimitiveRestart;
- info.restart_index = st->ctx->Array.RestartIndex;
-
- /* do actual drawing */
- for (i = 0; i < nr_prims; i++) {
- info.mode = translate_prim( ctx, prims[i].mode );
- info.start = prims[i].start;
- info.count = prims[i].count;
- info.instance_count = prims[i].num_instances;
- info.index_bias = prims[i].basevertex;
- if (!ib) {
- info.min_index = info.start;
- info.max_index = info.start + info.count - 1;
- }
-
- if (u_trim_pipe_prim(info.mode, &info.count))
- pipe->draw_vbo(pipe, &info);
- }
-
- pipe_resource_reference(&ibuffer.buffer, NULL);
-}
-
-
-void st_init_draw( struct st_context *st )
-{
- struct gl_context *ctx = st->ctx;
-
- vbo_set_draw_func(ctx, st_draw_vbo);
-
-#if FEATURE_feedback || FEATURE_rastpos
- st->draw = draw_create(st->pipe); /* for selection/feedback */
-
- /* Disable draw options that might convert points/lines to tris, etc.
- * as that would foul-up feedback/selection mode.
- */
- draw_wide_line_threshold(st->draw, 1000.0f);
- draw_wide_point_threshold(st->draw, 1000.0f);
- draw_enable_line_stipple(st->draw, FALSE);
- draw_enable_point_sprites(st->draw, FALSE);
-#endif
-}
-
-
-void st_destroy_draw( struct st_context *st )
-{
-#if FEATURE_feedback || FEATURE_rastpos
- draw_destroy(st->draw);
-#endif
-}
-
-
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/*
+ * This file implements the st_draw_vbo() function which is called from
+ * Mesa's VBO module. All point/line/triangle rendering is done through
+ * this function whether the user called glBegin/End, glDrawArrays,
+ * glDrawElements, glEvalMesh, or glCalList, etc.
+ *
+ * We basically convert the VBO's vertex attribute/array information into
+ * Gallium vertex state, bind the vertex buffer objects and call
+ * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().
+ *
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+#include "main/imports.h"
+#include "main/image.h"
+#include "main/macros.h"
+#include "main/mfeatures.h"
+#include "program/prog_uniform.h"
+
+#include "vbo/vbo.h"
+
+#include "st_context.h"
+#include "st_atom.h"
+#include "st_cb_bufferobjects.h"
+#include "st_draw.h"
+#include "st_program.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+#include "util/u_prim.h"
+#include "util/u_draw_quad.h"
+#include "draw/draw_context.h"
+#include "cso_cache/cso_context.h"
+
+
+static GLuint double_types[4] = {
+ PIPE_FORMAT_R64_FLOAT,
+ PIPE_FORMAT_R64G64_FLOAT,
+ PIPE_FORMAT_R64G64B64_FLOAT,
+ PIPE_FORMAT_R64G64B64A64_FLOAT
+};
+
+static GLuint float_types[4] = {
+ PIPE_FORMAT_R32_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT
+};
+
+static GLuint half_float_types[4] = {
+ PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R16G16B16_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT
+};
+
+static GLuint uint_types_norm[4] = {
+ PIPE_FORMAT_R32_UNORM,
+ PIPE_FORMAT_R32G32_UNORM,
+ PIPE_FORMAT_R32G32B32_UNORM,
+ PIPE_FORMAT_R32G32B32A32_UNORM
+};
+
+static GLuint uint_types_scale[4] = {
+ PIPE_FORMAT_R32_USCALED,
+ PIPE_FORMAT_R32G32_USCALED,
+ PIPE_FORMAT_R32G32B32_USCALED,
+ PIPE_FORMAT_R32G32B32A32_USCALED
+};
+
+static GLuint int_types_norm[4] = {
+ PIPE_FORMAT_R32_SNORM,
+ PIPE_FORMAT_R32G32_SNORM,
+ PIPE_FORMAT_R32G32B32_SNORM,
+ PIPE_FORMAT_R32G32B32A32_SNORM
+};
+
+static GLuint int_types_scale[4] = {
+ PIPE_FORMAT_R32_SSCALED,
+ PIPE_FORMAT_R32G32_SSCALED,
+ PIPE_FORMAT_R32G32B32_SSCALED,
+ PIPE_FORMAT_R32G32B32A32_SSCALED
+};
+
+static GLuint ushort_types_norm[4] = {
+ PIPE_FORMAT_R16_UNORM,
+ PIPE_FORMAT_R16G16_UNORM,
+ PIPE_FORMAT_R16G16B16_UNORM,
+ PIPE_FORMAT_R16G16B16A16_UNORM
+};
+
+static GLuint ushort_types_scale[4] = {
+ PIPE_FORMAT_R16_USCALED,
+ PIPE_FORMAT_R16G16_USCALED,
+ PIPE_FORMAT_R16G16B16_USCALED,
+ PIPE_FORMAT_R16G16B16A16_USCALED
+};
+
+static GLuint short_types_norm[4] = {
+ PIPE_FORMAT_R16_SNORM,
+ PIPE_FORMAT_R16G16_SNORM,
+ PIPE_FORMAT_R16G16B16_SNORM,
+ PIPE_FORMAT_R16G16B16A16_SNORM
+};
+
+static GLuint short_types_scale[4] = {
+ PIPE_FORMAT_R16_SSCALED,
+ PIPE_FORMAT_R16G16_SSCALED,
+ PIPE_FORMAT_R16G16B16_SSCALED,
+ PIPE_FORMAT_R16G16B16A16_SSCALED
+};
+
+static GLuint ubyte_types_norm[4] = {
+ PIPE_FORMAT_R8_UNORM,
+ PIPE_FORMAT_R8G8_UNORM,
+ PIPE_FORMAT_R8G8B8_UNORM,
+ PIPE_FORMAT_R8G8B8A8_UNORM
+};
+
+static GLuint ubyte_types_scale[4] = {
+ PIPE_FORMAT_R8_USCALED,
+ PIPE_FORMAT_R8G8_USCALED,
+ PIPE_FORMAT_R8G8B8_USCALED,
+ PIPE_FORMAT_R8G8B8A8_USCALED
+};
+
+static GLuint byte_types_norm[4] = {
+ PIPE_FORMAT_R8_SNORM,
+ PIPE_FORMAT_R8G8_SNORM,
+ PIPE_FORMAT_R8G8B8_SNORM,
+ PIPE_FORMAT_R8G8B8A8_SNORM
+};
+
+static GLuint byte_types_scale[4] = {
+ PIPE_FORMAT_R8_SSCALED,
+ PIPE_FORMAT_R8G8_SSCALED,
+ PIPE_FORMAT_R8G8B8_SSCALED,
+ PIPE_FORMAT_R8G8B8A8_SSCALED
+};
+
+static GLuint fixed_types[4] = {
+ PIPE_FORMAT_R32_FIXED,
+ PIPE_FORMAT_R32G32_FIXED,
+ PIPE_FORMAT_R32G32B32_FIXED,
+ PIPE_FORMAT_R32G32B32A32_FIXED
+};
+
+
+
+/**
+ * Return a PIPE_FORMAT_x for the given GL datatype and size.
+ */
+GLuint
+st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
+ GLboolean normalized)
+{
+ assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
+ type == GL_FIXED || type == GL_HALF_FLOAT);
+ assert(size >= 1);
+ assert(size <= 4);
+ assert(format == GL_RGBA || format == GL_BGRA);
+
+ if (format == GL_BGRA) {
+ /* this is an odd-ball case */
+ assert(type == GL_UNSIGNED_BYTE);
+ assert(normalized);
+ return PIPE_FORMAT_B8G8R8A8_UNORM;
+ }
+
+ if (normalized) {
+ switch (type) {
+ case GL_DOUBLE: return double_types[size-1];
+ case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
+ case GL_INT: return int_types_norm[size-1];
+ case GL_SHORT: return short_types_norm[size-1];
+ case GL_BYTE: return byte_types_norm[size-1];
+ case GL_UNSIGNED_INT: return uint_types_norm[size-1];
+ case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
+ case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
+ case GL_FIXED: return fixed_types[size-1];
+ default: assert(0); return 0;
+ }
+ }
+ else {
+ switch (type) {
+ case GL_DOUBLE: return double_types[size-1];
+ case GL_FLOAT: return float_types[size-1];
+ case GL_HALF_FLOAT: return half_float_types[size-1];
+ case GL_INT: return int_types_scale[size-1];
+ case GL_SHORT: return short_types_scale[size-1];
+ case GL_BYTE: return byte_types_scale[size-1];
+ case GL_UNSIGNED_INT: return uint_types_scale[size-1];
+ case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
+ case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
+ case GL_FIXED: return fixed_types[size-1];
+ default: assert(0); return 0;
+ }
+ }
+ return 0; /* silence compiler warning */
+}
+
+
+
+
+
+/**
+ * Examine the active arrays to determine if we have interleaved
+ * vertex arrays all living in one VBO, or all living in user space.
+ * \param userSpace returns whether the arrays are in user space.
+ */
+static GLboolean
+is_interleaved_arrays(const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays)
+{
+ GLuint attr;
+ const struct gl_buffer_object *firstBufObj = NULL;
+ GLint firstStride = -1;
+ const GLubyte *client_addr = NULL;
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj;
+ const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */
+
+ if (firstStride < 0) {
+ firstStride = stride;
+ }
+ else if (firstStride != stride) {
+ return GL_FALSE;
+ }
+
+ if (!bufObj || !bufObj->Name) {
+ /* Try to detect if the client-space arrays are
+ * "close" to each other.
+ */
+ if (!client_addr) {
+ client_addr = arrays[mesaAttr]->Ptr;
+ }
+ else if (abs(arrays[mesaAttr]->Ptr - client_addr) > firstStride) {
+ /* arrays start too far apart */
+ return GL_FALSE;
+ }
+ }
+ else if (!firstBufObj) {
+ firstBufObj = bufObj;
+ }
+ else if (bufObj != firstBufObj) {
+ return GL_FALSE;
+ }
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Set up for drawing interleaved arrays that all live in one VBO
+ * or all live in user space.
+ * \param vbuffer returns vertex buffer info
+ * \param velements returns vertex element info
+ */
+static void
+setup_interleaved_attribs(struct gl_context *ctx,
+ const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays,
+ struct pipe_vertex_buffer *vbuffer,
+ struct pipe_vertex_element velements[],
+ unsigned max_index)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ GLuint attr;
+ const GLubyte *low_addr = NULL;
+
+ /* Find the lowest address. */
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
+
+ low_addr = !low_addr ? start : MIN2(low_addr, start);
+ }
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+ GLsizei stride = arrays[mesaAttr]->StrideB;
+
+ if (attr == 0) {
+ if (bufobj && bufobj->Name) {
+ vbuffer->buffer = NULL;
+ pipe_resource_reference(&vbuffer->buffer, stobj->buffer);
+ vbuffer->buffer_offset = pointer_to_offset(low_addr);
+ } else {
+ vbuffer->buffer =
+ pipe_user_buffer_create(pipe->screen, (void*)low_addr,
+ stride * (max_index + 1),
+ PIPE_BIND_VERTEX_BUFFER);
+ vbuffer->buffer_offset = 0;
+
+ /* Track user vertex buffers. */
+ pipe_resource_reference(&st->user_vb[0], vbuffer->buffer);
+ st->user_vb_stride[0] = stride;
+ st->num_user_vbs = 1;
+ }
+ vbuffer->stride = stride; /* in bytes */
+ }
+
+ velements[attr].src_offset =
+ (unsigned) (arrays[mesaAttr]->Ptr - low_addr);
+ velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
+ velements[attr].vertex_buffer_index = 0;
+ velements[attr].src_format =
+ st_pipe_vertex_format(arrays[mesaAttr]->Type,
+ arrays[mesaAttr]->Size,
+ arrays[mesaAttr]->Format,
+ arrays[mesaAttr]->Normalized);
+ assert(velements[attr].src_format);
+ }
+}
+
+
+/**
+ * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
+ * vertex attribute.
+ * \param vbuffer returns vertex buffer info
+ * \param velements returns vertex element info
+ */
+static void
+setup_non_interleaved_attribs(struct gl_context *ctx,
+ const struct st_vertex_program *vp,
+ const struct st_vp_variant *vpv,
+ const struct gl_client_array **arrays,
+ struct pipe_vertex_buffer vbuffer[],
+ struct pipe_vertex_element velements[],
+ unsigned max_index)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ GLuint attr;
+
+ for (attr = 0; attr < vpv->num_inputs; attr++) {
+ const GLuint mesaAttr = vp->index_to_input[attr];
+ struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
+ GLsizei stride = arrays[mesaAttr]->StrideB;
+
+ if (bufobj && bufobj->Name) {
+ /* Attribute data is in a VBO.
+ * Recall that for VBOs, the gl_client_array->Ptr field is
+ * really an offset from the start of the VBO, not a pointer.
+ */
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+ assert(stobj->buffer);
+
+ vbuffer[attr].buffer = NULL;
+ pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);
+ vbuffer[attr].buffer_offset = pointer_to_offset(arrays[mesaAttr]->Ptr);
+ }
+ else {
+ /* wrap user data */
+ if (arrays[mesaAttr]->Ptr) {
+ vbuffer[attr].buffer =
+ pipe_user_buffer_create(pipe->screen,
+ (void *) arrays[mesaAttr]->Ptr,
+ stride * (max_index + 1),
+ PIPE_BIND_VERTEX_BUFFER);
+ }
+ else {
+ /* no array, use ctx->Current.Attrib[] value */
+ uint bytes = sizeof(ctx->Current.Attrib[0]);
+ vbuffer[attr].buffer =
+ pipe_user_buffer_create(pipe->screen,
+ (void *) ctx->Current.Attrib[mesaAttr],
+ bytes,
+ PIPE_BIND_VERTEX_BUFFER);
+ stride = 0;
+ }
+
+ vbuffer[attr].buffer_offset = 0;
+
+ /* Track user vertex buffers. */
+ pipe_resource_reference(&st->user_vb[attr], vbuffer->buffer);
+ st->user_vb_stride[attr] = stride;
+ st->num_user_vbs = MAX2(st->num_user_vbs, attr+1);
+ }
+
+ /* common-case setup */
+ vbuffer[attr].stride = stride; /* in bytes */
+
+ velements[attr].src_offset = 0;
+ velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
+ velements[attr].vertex_buffer_index = attr;
+ velements[attr].src_format
+ = st_pipe_vertex_format(arrays[mesaAttr]->Type,
+ arrays[mesaAttr]->Size,
+ arrays[mesaAttr]->Format,
+ arrays[mesaAttr]->Normalized);
+ assert(velements[attr].src_format);
+ }
+}
+
+
+static void
+setup_index_buffer(struct gl_context *ctx,
+ const struct _mesa_index_buffer *ib,
+ struct pipe_index_buffer *ibuffer)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+
+ memset(ibuffer, 0, sizeof(*ibuffer));
+ if (ib) {
+ struct gl_buffer_object *bufobj = ib->obj;
+
+ switch (ib->type) {
+ case GL_UNSIGNED_INT:
+ ibuffer->index_size = 4;
+ break;
+ case GL_UNSIGNED_SHORT:
+ ibuffer->index_size = 2;
+ break;
+ case GL_UNSIGNED_BYTE:
+ ibuffer->index_size = 1;
+ break;
+ default:
+ assert(0);
+ return;
+ }
+
+ /* get/create the index buffer object */
+ if (bufobj && bufobj->Name) {
+ /* elements/indexes are in a real VBO */
+ struct st_buffer_object *stobj = st_buffer_object(bufobj);
+ pipe_resource_reference(&ibuffer->buffer, stobj->buffer);
+ ibuffer->offset = pointer_to_offset(ib->ptr);
+ }
+ else {
+ /* element/indicies are in user space memory */
+ ibuffer->buffer =
+ pipe_user_buffer_create(pipe->screen, (void *) ib->ptr,
+ ib->count * ibuffer->index_size,
+ PIPE_BIND_INDEX_BUFFER);
+ }
+ }
+}
+
+/**
+ * Prior to drawing, check that any uniforms referenced by the
+ * current shader have been set. If a uniform has not been set,
+ * issue a warning.
+ */
+static void
+check_uniforms(struct gl_context *ctx)
+{
+ struct gl_shader_program *shProg[3] = {
+ ctx->Shader.CurrentVertexProgram,
+ ctx->Shader.CurrentGeometryProgram,
+ ctx->Shader.CurrentFragmentProgram,
+ };
+ unsigned j;
+
+ for (j = 0; j < 3; j++) {
+ unsigned i;
+
+ if (shProg[j] == NULL || !shProg[j]->LinkStatus)
+ continue;
+
+ for (i = 0; i < shProg[j]->Uniforms->NumUniforms; i++) {
+ const struct gl_uniform *u = &shProg[j]->Uniforms->Uniforms[i];
+ if (!u->Initialized) {
+ _mesa_warning(ctx,
+ "Using shader with uninitialized uniform: %s",
+ u->Name);
+ }
+ }
+ }
+}
+
+
+/**
+ * Translate OpenGL primtive type (GL_POINTS, GL_TRIANGLE_STRIP, etc) to
+ * the corresponding Gallium type.
+ */
+static unsigned
+translate_prim(const struct gl_context *ctx, unsigned prim)
+{
+ /* GL prims should match Gallium prims, spot-check a few */
+ assert(GL_POINTS == PIPE_PRIM_POINTS);
+ assert(GL_QUADS == PIPE_PRIM_QUADS);
+ assert(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);
+
+ /* Avoid quadstrips if it's easy to do so:
+ * Note: it's imporant to do the correct trimming if we change the prim type!
+ * We do that wherever this function is called.
+ */
+ if (prim == GL_QUAD_STRIP &&
+ ctx->Light.ShadeModel != GL_FLAT &&
+ ctx->Polygon.FrontMode == GL_FILL &&
+ ctx->Polygon.BackMode == GL_FILL)
+ prim = GL_TRIANGLE_STRIP;
+
+ return prim;
+}
+
+
+static void
+st_validate_varrays(struct gl_context *ctx,
+ const struct gl_client_array **arrays,
+ unsigned max_index)
+{
+ struct st_context *st = st_context(ctx);
+ const struct st_vertex_program *vp;
+ const struct st_vp_variant *vpv;
+ struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
+ struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
+ unsigned num_vbuffers, num_velements;
+ GLuint attr;
+ unsigned i;
+
+ /* must get these after state validation! */
+ vp = st->vp;
+ vpv = st->vp_variant;
+
+ memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
+
+ /* Unreference any user vertex buffers. */
+ for (i = 0; i < st->num_user_vbs; i++) {
+ pipe_resource_reference(&st->user_vb[i], NULL);
+ }
+ st->num_user_vbs = 0;
+
+ /*
+ * Setup the vbuffer[] and velements[] arrays.
+ */
+ if (is_interleaved_arrays(vp, vpv, arrays)) {
+ setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,
+ max_index);
+ num_vbuffers = 1;
+ num_velements = vpv->num_inputs;
+ if (num_velements == 0)
+ num_vbuffers = 0;
+ }
+ else {
+ setup_non_interleaved_attribs(ctx, vp, vpv, arrays,
+ vbuffer, velements, max_index);
+ num_vbuffers = vpv->num_inputs;
+ num_velements = vpv->num_inputs;
+ }
+
+ cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
+ cso_set_vertex_elements(st->cso_context, num_velements, velements);
+
+ /* unreference buffers (frees wrapped user-space buffer objects)
+ * This is OK, because the pipe driver should reference buffers by itself
+ * in set_vertex_buffers. */
+ for (attr = 0; attr < num_vbuffers; attr++) {
+ pipe_resource_reference(&vbuffer[attr].buffer, NULL);
+ assert(!vbuffer[attr].buffer);
+ }
+}
+
+
+/**
+ * This function gets plugged into the VBO module and is called when
+ * we have something to render.
+ * Basically, translate the information into the format expected by gallium.
+ */
+void
+st_draw_vbo(struct gl_context *ctx,
+ const struct gl_client_array **arrays,
+ const struct _mesa_prim *prims,
+ GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLboolean index_bounds_valid,
+ GLuint min_index,
+ GLuint max_index)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_index_buffer ibuffer;
+ struct pipe_draw_info info;
+ unsigned i;
+ GLboolean new_array = GL_TRUE;
+ /* Fix this (Bug 34378):
+ GLboolean new_array =
+ st->dirty.st && (st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;*/
+
+ /* Mesa core state should have been validated already */
+ assert(ctx->NewState == 0x0);
+
+ if (ib) {
+ /* Gallium probably doesn't want this in some cases. */
+ if (!index_bounds_valid)
+ if (!vbo_all_varyings_in_vbos(arrays))
+ vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
+ } else {
+ /* Get min/max index for non-indexed drawing. */
+ min_index = ~0;
+ max_index = 0;
+
+ for (i = 0; i < nr_prims; i++) {
+ min_index = MIN2(min_index, prims[i].start);
+ max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);
+ }
+ }
+
+ /* Validate state. */
+ if (st->dirty.st) {
+ GLboolean vertDataEdgeFlags;
+
+ /* sanity check for pointer arithmetic below */
+ assert(sizeof(arrays[0]->Ptr[0]) == 1);
+
+ vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&
+ arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;
+ if (vertDataEdgeFlags != st->vertdata_edgeflags) {
+ st->vertdata_edgeflags = vertDataEdgeFlags;
+ st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;
+ }
+
+ st_validate_state(st);
+
+ if (new_array) {
+ st_validate_varrays(ctx, arrays, max_index);
+ }
+
+#if 0
+ if (MESA_VERBOSE & VERBOSE_GLSL) {
+ check_uniforms(ctx);
+ }
+#else
+ (void) check_uniforms;
+#endif
+ }
+
+ /* Notify the driver that the content of user buffers may have been
+ * changed. */
+ if (!new_array && st->num_user_vbs) {
+ for (i = 0; i < st->num_user_vbs; i++) {
+ if (st->user_vb[i]) {
+ unsigned stride = st->user_vb_stride[i];
+
+ if (stride) {
+ pipe->redefine_user_buffer(pipe, st->user_vb[i],
+ min_index * stride,
+ (max_index + 1 - min_index) * stride);
+ } else {
+ /* stride == 0 */
+ pipe->redefine_user_buffer(pipe, st->user_vb[i],
+ 0, st->user_vb[i]->width0);
+ }
+ }
+ }
+ }
+
+ setup_index_buffer(ctx, ib, &ibuffer);
+ pipe->set_index_buffer(pipe, &ibuffer);
+
+ util_draw_init_info(&info);
+ if (ib) {
+ info.indexed = TRUE;
+ if (min_index != ~0 && max_index != ~0) {
+ info.min_index = min_index;
+ info.max_index = max_index;
+ }
+ }
+
+ info.primitive_restart = st->ctx->Array.PrimitiveRestart;
+ info.restart_index = st->ctx->Array.RestartIndex;
+
+ /* do actual drawing */
+ for (i = 0; i < nr_prims; i++) {
+ info.mode = translate_prim( ctx, prims[i].mode );
+ info.start = prims[i].start;
+ info.count = prims[i].count;
+ info.instance_count = prims[i].num_instances;
+ info.index_bias = prims[i].basevertex;
+ if (!ib) {
+ info.min_index = info.start;
+ info.max_index = info.start + info.count - 1;
+ }
+
+ if (u_trim_pipe_prim(info.mode, &info.count))
+ pipe->draw_vbo(pipe, &info);
+ }
+
+ pipe_resource_reference(&ibuffer.buffer, NULL);
+}
+
+
+void st_init_draw( struct st_context *st )
+{
+ struct gl_context *ctx = st->ctx;
+
+ vbo_set_draw_func(ctx, st_draw_vbo);
+
+#if FEATURE_feedback || FEATURE_rastpos
+ st->draw = draw_create(st->pipe); /* for selection/feedback */
+
+ /* Disable draw options that might convert points/lines to tris, etc.
+ * as that would foul-up feedback/selection mode.
+ */
+ draw_wide_line_threshold(st->draw, 1000.0f);
+ draw_wide_point_threshold(st->draw, 1000.0f);
+ draw_enable_line_stipple(st->draw, FALSE);
+ draw_enable_point_sprites(st->draw, FALSE);
+#endif
+}
+
+
+void st_destroy_draw( struct st_context *st )
+{
+#if FEATURE_feedback || FEATURE_rastpos
+ draw_destroy(st->draw);
+#endif
+}
+
+
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c
index d600edc48..b1ede1c8b 100644
--- a/mesalib/src/mesa/state_tracker/st_extensions.c
+++ b/mesalib/src/mesa/state_tracker/st_extensions.c
@@ -1,485 +1,482 @@
-/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright (c) 2008 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_screen.h"
-
-#include "st_context.h"
-#include "st_extensions.h"
-
-
-static int _min(int a, int b)
-{
- return (a < b) ? a : b;
-}
-
-static float _maxf(float a, float b)
-{
- return (a > b) ? a : b;
-}
-
-static int _clamp(int a, int min, int max)
-{
- if (a < min)
- return min;
- else if (a > max)
- return max;
- else
- return a;
-}
-
-
-/**
- * Query driver to get implementation limits.
- * Note that we have to limit/clamp against Mesa's internal limits too.
- */
-void st_init_limits(struct st_context *st)
-{
- struct pipe_screen *screen = st->pipe->screen;
- struct gl_constants *c = &st->ctx->Const;
- gl_shader_type sh;
-
- c->MaxTextureLevels
- = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
- MAX_TEXTURE_LEVELS);
-
- c->Max3DTextureLevels
- = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
- MAX_3D_TEXTURE_LEVELS);
-
- c->MaxCubeTextureLevels
- = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
- MAX_CUBE_TEXTURE_LEVELS);
-
- c->MaxTextureRectSize
- = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
-
- c->MaxTextureImageUnits
- = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS),
- MAX_TEXTURE_IMAGE_UNITS);
-
- c->MaxVertexTextureImageUnits
- = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS),
- MAX_VERTEX_TEXTURE_IMAGE_UNITS);
-
- c->MaxCombinedTextureImageUnits
- = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS),
- MAX_COMBINED_TEXTURE_IMAGE_UNITS);
-
- c->MaxTextureCoordUnits
- = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS);
-
- c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits);
-
- c->MaxDrawBuffers
- = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
- 1, MAX_DRAW_BUFFERS);
-
- c->MaxLineWidth
- = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH));
- c->MaxLineWidthAA
- = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA));
-
- c->MaxPointSize
- = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH));
- c->MaxPointSizeAA
- = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA));
- /* called after _mesa_create_context/_mesa_init_point, fix default user
- * settable max point size up
- */
- st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA);
- /* these are not queryable. Note that GL basically mandates a 1.0 minimum
- * for non-aa sizes, but we can go down to 0.0 for aa points.
- */
- c->MinPointSize = 1.0f;
- c->MinPointSizeAA = 0.0f;
-
- c->MaxTextureMaxAnisotropy
- = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));
-
- c->MaxTextureLodBias
- = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);
-
- c->MaxDrawBuffers
- = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
- 1, MAX_DRAW_BUFFERS);
-
- /* Quads always follow GL provoking rules. */
- c->QuadsFollowProvokingVertexConvention = GL_FALSE;
-
- for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) {
- struct gl_shader_compiler_options *options =
- &st->ctx->ShaderCompilerOptions[sh];
- struct gl_program_constants *pc;
-
- switch (sh) {
- case PIPE_SHADER_FRAGMENT:
- pc = &c->FragmentProgram;
- break;
- case PIPE_SHADER_VERTEX:
- pc = &c->VertexProgram;
- break;
- case PIPE_SHADER_GEOMETRY:
- pc = &c->GeometryProgram;
- break;
- default:
- assert(0);
- continue;
- }
-
- pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
- pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
- pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
- pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
- pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
- pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
- pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);
- pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);
- pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
-
- options->EmitNoNoise = TRUE;
-
- /* TODO: make these more fine-grained if anyone needs it */
- options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
- options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
- options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
- options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
-
- options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
-
- options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh,
- PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
- options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh,
- PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
- options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh,
- PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
- options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
- PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
-
- if(options->EmitNoLoops)
- options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);
- }
-
- /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs
- * and is set in MaxNativeAttribs. It's always 2 colors + N generic
- * attributes. The GLSL compiler never uses COLORn for varyings, so we
- * subtract the 2 colors to get the maximum number of varyings (generic
- * attributes) supported by a driver. */
- c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2;
- c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
-
- /* XXX we'll need a better query here someday */
- if (screen->get_param(screen, PIPE_CAP_GLSL)) {
- c->GLSLVersion = 120;
- }
-}
-
-
-/**
- * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
- * which GL extensions are supported.
- * Quite a few extensions are always supported because they are standard
- * features or can be built on top of other gallium features.
- * Some fine tuning may still be needed.
- */
-void st_init_extensions(struct st_context *st)
-{
- struct pipe_screen *screen = st->pipe->screen;
- struct gl_context *ctx = st->ctx;
-
- /*
- * Extensions that are supported by all Gallium drivers:
- */
- ctx->Extensions.ARB_copy_buffer = GL_TRUE;
- ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
- ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
- ctx->Extensions.ARB_fragment_program = GL_TRUE;
- ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
- ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
- ctx->Extensions.ARB_multisample = GL_TRUE;
- ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
- ctx->Extensions.ARB_texture_compression = GL_TRUE;
- ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
- ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
- ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
- ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
- ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
- ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
- ctx->Extensions.ARB_vertex_program = GL_TRUE;
- ctx->Extensions.ARB_window_pos = GL_TRUE;
-
- ctx->Extensions.EXT_blend_color = GL_TRUE;
- ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
- ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
- ctx->Extensions.EXT_blend_minmax = GL_TRUE;
- ctx->Extensions.EXT_blend_subtract = GL_TRUE;
- ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
- ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
- ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
- ctx->Extensions.EXT_fog_coord = GL_TRUE;
- ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
- ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
- ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
- ctx->Extensions.EXT_point_parameters = GL_TRUE;
- ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
- ctx->Extensions.EXT_secondary_color = GL_TRUE;
- ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
- ctx->Extensions.EXT_texture_env_add = GL_TRUE;
- ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
- ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
- ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
- ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
- if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2)
- ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE;
-
- ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
-
- ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
-
- ctx->Extensions.MESA_pack_invert = GL_TRUE;
-
- ctx->Extensions.NV_blend_square = GL_TRUE;
- ctx->Extensions.NV_texgen_reflection = GL_TRUE;
- ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
- ctx->Extensions.NV_texture_rectangle = GL_TRUE;
-#if 0
- /* possibly could support the following two */
- ctx->Extensions.NV_vertex_program = GL_TRUE;
- ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
-#endif
-
-#if FEATURE_OES_EGL_image
- ctx->Extensions.OES_EGL_image = GL_TRUE;
-#endif
-#if FEATURE_OES_draw_texture
- ctx->Extensions.OES_draw_texture = GL_TRUE;
-#endif
-
- ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
-
- /*
- * Extensions that depend on the driver/hardware:
- */
- if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {
- ctx->Extensions.ARB_draw_buffers = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {
- ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_GLSL)) {
- ctx->Extensions.ARB_fragment_shader = GL_TRUE;
- ctx->Extensions.ARB_vertex_shader = GL_TRUE;
- ctx->Extensions.ARB_shader_objects = GL_TRUE;
- ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
- ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
- ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) {
- ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) {
- ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) {
- ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
- ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {
- ctx->Extensions.ARB_multitexture = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {
- ctx->Extensions.ATI_separate_stencil = GL_TRUE;
- ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {
- ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) {
- ctx->Extensions.ARB_point_sprite = GL_TRUE;
- /* GL_NV_point_sprite is not supported by gallium because we don't
- * support the GL_POINT_SPRITE_R_MODE_NV option.
- */
- }
-
- if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) {
- ctx->Extensions.ARB_occlusion_query = GL_TRUE;
- ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
- }
- if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) {
- ctx->Extensions.EXT_timer_query = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) {
- ctx->Extensions.ARB_depth_texture = GL_TRUE;
- ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
- ctx->Extensions.ARB_shadow = GL_TRUE;
- ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
- /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
- }
-
- /* GL_EXT_packed_depth_stencil requires both the ability to render to
- * a depth/stencil buffer and texture from depth/stencil source.
- */
- if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_DEPTH_STENCIL, 0) &&
- screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
- }
- else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_DEPTH_STENCIL, 0) &&
- screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
- }
-
- /* sRGB support */
- if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0) ||
- screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
- ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
- if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_RENDER_TARGET, 0) ||
- screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_RENDER_TARGET, 0)) {
- ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE;
- ctx->Const.sRGBCapable = GL_TRUE;
- }
- }
-
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- ctx->Extensions.ARB_texture_rg = GL_TRUE;
- }
-
- /* s3tc support */
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0) &&
- (ctx->Mesa_DXTn ||
- screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_RENDER_TARGET, 0))) {
- ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
- ctx->Extensions.S3_s3tc = GL_TRUE;
- }
-
- /* ycbcr support */
- if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0) ||
- screen->is_format_supported(screen, PIPE_FORMAT_YUYV,
- PIPE_TEXTURE_2D, 0,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
- }
-
- /* GL_EXT_texture_array */
- if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) {
- ctx->Extensions.EXT_texture_array = GL_TRUE;
- ctx->Extensions.MESA_texture_array = GL_TRUE;
- }
-
- /* GL_ARB_framebuffer_object */
- if (ctx->Extensions.EXT_packed_depth_stencil) {
- /* we support always support GL_EXT_framebuffer_blit */
- ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
- }
-
- if (st->pipe->render_condition) {
- ctx->Extensions.NV_conditional_render = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) {
- ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) {
- ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE;
- }
-
- /* GL_ARB_half_float_vertex */
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_BUFFER, 0,
- PIPE_BIND_VERTEX_BUFFER, 0)) {
- ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
- }
-
- if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
-#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
- ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
-#endif
- }
-
- if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
- ctx->Extensions.NV_primitive_restart = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) {
- ctx->Extensions.ARB_depth_clamp = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {
- ctx->Extensions.ARB_shader_stencil_export = GL_TRUE;
- }
-
- if (screen->get_param(screen, PIPE_CAP_INSTANCED_DRAWING)) {
- ctx->Extensions.ARB_draw_instanced = GL_TRUE;
- ctx->Extensions.ARB_instanced_arrays = GL_TRUE;
- }
-}
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright (c) 2008 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/mfeatures.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+
+#include "st_context.h"
+#include "st_extensions.h"
+
+
+static int _min(int a, int b)
+{
+ return (a < b) ? a : b;
+}
+
+static float _maxf(float a, float b)
+{
+ return (a > b) ? a : b;
+}
+
+static int _clamp(int a, int min, int max)
+{
+ if (a < min)
+ return min;
+ else if (a > max)
+ return max;
+ else
+ return a;
+}
+
+
+/**
+ * Query driver to get implementation limits.
+ * Note that we have to limit/clamp against Mesa's internal limits too.
+ */
+void st_init_limits(struct st_context *st)
+{
+ struct pipe_screen *screen = st->pipe->screen;
+ struct gl_constants *c = &st->ctx->Const;
+ gl_shader_type sh;
+
+ c->MaxTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
+ MAX_TEXTURE_LEVELS);
+
+ c->Max3DTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
+ MAX_3D_TEXTURE_LEVELS);
+
+ c->MaxCubeTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
+ MAX_CUBE_TEXTURE_LEVELS);
+
+ c->MaxTextureRectSize
+ = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
+
+ c->MaxTextureImageUnits
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS),
+ MAX_TEXTURE_IMAGE_UNITS);
+
+ c->MaxVertexTextureImageUnits
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS),
+ MAX_VERTEX_TEXTURE_IMAGE_UNITS);
+
+ c->MaxCombinedTextureImageUnits
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS),
+ MAX_COMBINED_TEXTURE_IMAGE_UNITS);
+
+ c->MaxTextureCoordUnits
+ = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS);
+
+ c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits);
+
+ c->MaxDrawBuffers
+ = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
+ 1, MAX_DRAW_BUFFERS);
+
+ c->MaxLineWidth
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH));
+ c->MaxLineWidthAA
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA));
+
+ c->MaxPointSize
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH));
+ c->MaxPointSizeAA
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA));
+ /* called after _mesa_create_context/_mesa_init_point, fix default user
+ * settable max point size up
+ */
+ st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA);
+ /* these are not queryable. Note that GL basically mandates a 1.0 minimum
+ * for non-aa sizes, but we can go down to 0.0 for aa points.
+ */
+ c->MinPointSize = 1.0f;
+ c->MinPointSizeAA = 0.0f;
+
+ c->MaxTextureMaxAnisotropy
+ = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));
+
+ c->MaxTextureLodBias
+ = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);
+
+ c->MaxDrawBuffers
+ = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
+ 1, MAX_DRAW_BUFFERS);
+
+ /* Quads always follow GL provoking rules. */
+ c->QuadsFollowProvokingVertexConvention = GL_FALSE;
+
+ for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) {
+ struct gl_shader_compiler_options *options =
+ &st->ctx->ShaderCompilerOptions[sh];
+ struct gl_program_constants *pc;
+
+ switch (sh) {
+ case PIPE_SHADER_FRAGMENT:
+ pc = &c->FragmentProgram;
+ break;
+ case PIPE_SHADER_VERTEX:
+ pc = &c->VertexProgram;
+ break;
+ case PIPE_SHADER_GEOMETRY:
+ pc = &c->GeometryProgram;
+ break;
+ default:
+ assert(0);
+ continue;
+ }
+
+ pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
+ pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
+ pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
+ pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
+ pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
+ pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
+ pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS);
+ pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS);
+ pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
+
+ options->EmitNoNoise = TRUE;
+
+ /* TODO: make these more fine-grained if anyone needs it */
+ options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
+ options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
+ options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
+ options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
+
+ options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
+
+ options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh,
+ PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
+ options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh,
+ PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
+ options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh,
+ PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
+ options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
+ PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
+
+ if(options->EmitNoLoops)
+ options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);
+ }
+
+ /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs
+ * and is set in MaxNativeAttribs. It's always 2 colors + N generic
+ * attributes. The GLSL compiler never uses COLORn for varyings, so we
+ * subtract the 2 colors to get the maximum number of varyings (generic
+ * attributes) supported by a driver. */
+ c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2;
+ c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
+
+ /* XXX we'll need a better query here someday */
+ if (screen->get_param(screen, PIPE_CAP_GLSL)) {
+ c->GLSLVersion = 120;
+ }
+}
+
+
+/**
+ * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
+ * which GL extensions are supported.
+ * Quite a few extensions are always supported because they are standard
+ * features or can be built on top of other gallium features.
+ * Some fine tuning may still be needed.
+ */
+void st_init_extensions(struct st_context *st)
+{
+ struct pipe_screen *screen = st->pipe->screen;
+ struct gl_context *ctx = st->ctx;
+
+ /*
+ * Extensions that are supported by all Gallium drivers:
+ */
+ ctx->Extensions.ARB_copy_buffer = GL_TRUE;
+ ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
+ ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
+ ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
+ ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
+ ctx->Extensions.ARB_multisample = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
+ ctx->Extensions.ARB_texture_compression = GL_TRUE;
+ ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
+ ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
+ ctx->Extensions.ARB_vertex_program = GL_TRUE;
+ ctx->Extensions.ARB_window_pos = GL_TRUE;
+
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
+ ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
+ ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+ ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
+ ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
+ ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
+ ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+ ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
+ if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2)
+ ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE;
+
+ ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
+
+ ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
+
+ ctx->Extensions.MESA_pack_invert = GL_TRUE;
+
+ ctx->Extensions.NV_blend_square = GL_TRUE;
+ ctx->Extensions.NV_texgen_reflection = GL_TRUE;
+ ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
+ ctx->Extensions.NV_texture_rectangle = GL_TRUE;
+#if 0
+ /* possibly could support the following two */
+ ctx->Extensions.NV_vertex_program = GL_TRUE;
+ ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
+#endif
+
+#if FEATURE_OES_EGL_image
+ ctx->Extensions.OES_EGL_image = GL_TRUE;
+#endif
+#if FEATURE_OES_draw_texture
+ ctx->Extensions.OES_draw_texture = GL_TRUE;
+#endif
+
+ ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+
+ /*
+ * Extensions that depend on the driver/hardware:
+ */
+ if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {
+ ctx->Extensions.ARB_draw_buffers = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) {
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_GLSL)) {
+ ctx->Extensions.ARB_fragment_shader = GL_TRUE;
+ ctx->Extensions.ARB_vertex_shader = GL_TRUE;
+ ctx->Extensions.ARB_shader_objects = GL_TRUE;
+ ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
+ ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
+ ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) {
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) {
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) {
+ ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
+ ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {
+ ctx->Extensions.ATI_separate_stencil = GL_TRUE;
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {
+ ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) {
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ /* GL_NV_point_sprite is not supported by gallium because we don't
+ * support the GL_POINT_SPRITE_R_MODE_NV option.
+ */
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) {
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
+ }
+ if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) {
+ ctx->Extensions.EXT_timer_query = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) {
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+ /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
+ }
+
+ /* GL_EXT_packed_depth_stencil requires both the ability to render to
+ * a depth/stencil buffer and texture from depth/stencil source.
+ */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_DEPTH_STENCIL, 0) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ }
+ else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_DEPTH_STENCIL, 0) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ }
+
+ /* sRGB support */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0) ||
+ screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+ ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_RENDER_TARGET, 0) ||
+ screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_RENDER_TARGET, 0)) {
+ ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE;
+ ctx->Const.sRGBCapable = GL_TRUE;
+ }
+ }
+
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ ctx->Extensions.ARB_texture_rg = GL_TRUE;
+ }
+
+ /* s3tc support */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0) &&
+ ctx->Mesa_DXTn) {
+ ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
+ ctx->Extensions.S3_s3tc = GL_TRUE;
+ }
+
+ /* ycbcr support */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0) ||
+ screen->is_format_supported(screen, PIPE_FORMAT_YUYV,
+ PIPE_TEXTURE_2D, 0,
+ PIPE_BIND_SAMPLER_VIEW, 0)) {
+ ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
+ }
+
+ /* GL_EXT_texture_array */
+ if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) {
+ ctx->Extensions.EXT_texture_array = GL_TRUE;
+ ctx->Extensions.MESA_texture_array = GL_TRUE;
+ }
+
+ /* GL_ARB_framebuffer_object */
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ /* we support always support GL_EXT_framebuffer_blit */
+ ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
+ }
+
+ if (st->pipe->render_condition) {
+ ctx->Extensions.NV_conditional_render = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) {
+ ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) {
+ ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE;
+ }
+
+ /* GL_ARB_half_float_vertex */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_BUFFER, 0,
+ PIPE_BIND_VERTEX_BUFFER, 0)) {
+ ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
+ }
+
+ if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
+#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
+ ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
+#endif
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
+ ctx->Extensions.NV_primitive_restart = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) {
+ ctx->Extensions.ARB_depth_clamp = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {
+ ctx->Extensions.ARB_shader_stencil_export = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_INSTANCED_DRAWING)) {
+ ctx->Extensions.ARB_draw_instanced = GL_TRUE;
+ ctx->Extensions.ARB_instanced_arrays = GL_TRUE;
+ }
+}