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-rw-r--r--mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c708
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_drawpixels.c2976
-rw-r--r--mesalib/src/mesa/state_tracker/st_program.c2
3 files changed, 1843 insertions, 1843 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c b/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c
index 98be6ab75..9557adc2d 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_pixeltransfer.c
@@ -1,354 +1,354 @@
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-/*
- * Generate fragment programs to implement pixel transfer ops, such as
- * scale/bias, colortable, convolution...
- *
- * Authors:
- * Brian Paul
- */
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "program/program.h"
-#include "program/prog_cache.h"
-#include "program/prog_instruction.h"
-#include "program/prog_parameter.h"
-#include "program/prog_print.h"
-
-#include "st_context.h"
-#include "st_format.h"
-#include "st_texture.h"
-
-#include "pipe/p_screen.h"
-#include "pipe/p_context.h"
-#include "util/u_inlines.h"
-#include "util/u_pack_color.h"
-
-
-struct state_key
-{
- GLuint scaleAndBias:1;
- GLuint pixelMaps:1;
-
-#if 0
- GLfloat Maps[3][256][4];
- int NumMaps;
- GLint NumStages;
- pipeline_stage Stages[STAGE_MAX];
- GLboolean StagesUsed[STAGE_MAX];
- GLfloat Scale1[4], Bias1[4];
- GLfloat Scale2[4], Bias2[4];
-#endif
-};
-
-static void
-make_state_key(struct gl_context *ctx, struct state_key *key)
-{
- memset(key, 0, sizeof(*key));
-
- if (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->scaleAndBias = 1;
- }
-
- key->pixelMaps = ctx->Pixel.MapColorFlag;
-}
-
-
-static struct pipe_resource *
-create_color_map_texture(struct gl_context *ctx)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct pipe_resource *pt;
- enum pipe_format format;
- const uint texSize = 256; /* simple, and usually perfect */
-
- /* find an RGBA texture format */
- format = st_choose_format(pipe->screen, GL_RGBA,
- PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
-
- /* create texture for color map/table */
- pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0,
- texSize, texSize, 1, 1, PIPE_BIND_SAMPLER_VIEW);
- return pt;
-}
-
-
-/**
- * Update the pixelmap texture with the contents of the R/G/B/A pixel maps.
- */
-static void
-load_color_map_texture(struct gl_context *ctx, struct pipe_resource *pt)
-{
- struct st_context *st = st_context(ctx);
- struct pipe_context *pipe = st->pipe;
- struct pipe_transfer *transfer;
- const GLuint rSize = ctx->PixelMaps.RtoR.Size;
- const GLuint gSize = ctx->PixelMaps.GtoG.Size;
- const GLuint bSize = ctx->PixelMaps.BtoB.Size;
- const GLuint aSize = ctx->PixelMaps.AtoA.Size;
- const uint texSize = pt->width0;
- uint *dest;
- uint i, j;
-
- transfer = pipe_get_transfer(st_context(ctx)->pipe,
- pt, 0, 0, PIPE_TRANSFER_WRITE,
- 0, 0, texSize, texSize);
- dest = (uint *) pipe_transfer_map(pipe, transfer);
-
- /* Pack four 1D maps into a 2D texture:
- * R map is placed horizontally, indexed by S, in channel 0
- * G map is placed vertically, indexed by T, in channel 1
- * B map is placed horizontally, indexed by S, in channel 2
- * A map is placed vertically, indexed by T, in channel 3
- */
- for (i = 0; i < texSize; i++) {
- for (j = 0; j < texSize; j++) {
- union util_color uc;
- int k = (i * texSize + j);
- ubyte r = ctx->PixelMaps.RtoR.Map8[j * rSize / texSize];
- ubyte g = ctx->PixelMaps.GtoG.Map8[i * gSize / texSize];
- ubyte b = ctx->PixelMaps.BtoB.Map8[j * bSize / texSize];
- ubyte a = ctx->PixelMaps.AtoA.Map8[i * aSize / texSize];
- util_pack_color_ub(r, g, b, a, pt->format, &uc);
- *(dest + k) = uc.ui;
- }
- }
-
- pipe_transfer_unmap(pipe, transfer);
- pipe->transfer_destroy(pipe, transfer);
-}
-
-
-
-#define MAX_INST 100
-
-/**
- * Returns a fragment program which implements the current pixel transfer ops.
- */
-static struct gl_fragment_program *
-get_pixel_transfer_program(struct gl_context *ctx, const struct state_key *key)
-{
- struct st_context *st = st_context(ctx);
- struct prog_instruction inst[MAX_INST];
- struct gl_program_parameter_list *params;
- struct gl_fragment_program *fp;
- GLuint ic = 0;
- const GLuint colorTemp = 0;
-
- fp = (struct gl_fragment_program *)
- ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
- if (!fp)
- return NULL;
-
- params = _mesa_new_parameter_list();
-
- /*
- * Get initial pixel color from the texture.
- * TEX colorTemp, fragment.texcoord[0], texture[0], 2D;
- */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_TEX;
- inst[ic].DstReg.File = PROGRAM_TEMPORARY;
- inst[ic].DstReg.Index = colorTemp;
- inst[ic].SrcReg[0].File = PROGRAM_INPUT;
- inst[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
- inst[ic].TexSrcUnit = 0;
- inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
- fp->Base.InputsRead = (1 << FRAG_ATTRIB_TEX0);
- fp->Base.OutputsWritten = (1 << FRAG_RESULT_COLOR);
- fp->Base.SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
-
- if (key->scaleAndBias) {
- static const gl_state_index scale_state[STATE_LENGTH] =
- { STATE_INTERNAL, STATE_PT_SCALE, 0, 0, 0 };
- static const gl_state_index bias_state[STATE_LENGTH] =
- { STATE_INTERNAL, STATE_PT_BIAS, 0, 0, 0 };
- GLfloat scale[4], bias[4];
- GLint scale_p, bias_p;
-
- scale[0] = ctx->Pixel.RedScale;
- scale[1] = ctx->Pixel.GreenScale;
- scale[2] = ctx->Pixel.BlueScale;
- scale[3] = ctx->Pixel.AlphaScale;
- bias[0] = ctx->Pixel.RedBias;
- bias[1] = ctx->Pixel.GreenBias;
- bias[2] = ctx->Pixel.BlueBias;
- bias[3] = ctx->Pixel.AlphaBias;
-
- scale_p = _mesa_add_state_reference(params, scale_state);
- bias_p = _mesa_add_state_reference(params, bias_state);
-
- /* MAD colorTemp, colorTemp, scale, bias; */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_MAD;
- inst[ic].DstReg.File = PROGRAM_TEMPORARY;
- inst[ic].DstReg.Index = colorTemp;
- inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
- inst[ic].SrcReg[0].Index = colorTemp;
- inst[ic].SrcReg[1].File = PROGRAM_STATE_VAR;
- inst[ic].SrcReg[1].Index = scale_p;
- inst[ic].SrcReg[2].File = PROGRAM_STATE_VAR;
- inst[ic].SrcReg[2].Index = bias_p;
- ic++;
- }
-
- if (key->pixelMaps) {
- const GLuint temp = 1;
-
- /* create the colormap/texture now if not already done */
- if (!st->pixel_xfer.pixelmap_texture) {
- st->pixel_xfer.pixelmap_texture = create_color_map_texture(ctx);
- st->pixel_xfer.pixelmap_sampler_view =
- st_create_texture_sampler_view(st->pipe,
- st->pixel_xfer.pixelmap_texture);
- }
-
- /* with a little effort, we can do four pixel map look-ups with
- * two TEX instructions:
- */
-
- /* TEX temp.rg, colorTemp.rgba, texture[1], 2D; */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_TEX;
- inst[ic].DstReg.File = PROGRAM_TEMPORARY;
- inst[ic].DstReg.Index = temp;
- inst[ic].DstReg.WriteMask = WRITEMASK_XY; /* write R,G */
- inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
- inst[ic].SrcReg[0].Index = colorTemp;
- inst[ic].TexSrcUnit = 1;
- inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
-
- /* TEX temp.ba, colorTemp.baba, texture[1], 2D; */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_TEX;
- inst[ic].DstReg.File = PROGRAM_TEMPORARY;
- inst[ic].DstReg.Index = temp;
- inst[ic].DstReg.WriteMask = WRITEMASK_ZW; /* write B,A */
- inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
- inst[ic].SrcReg[0].Index = colorTemp;
- inst[ic].SrcReg[0].Swizzle = MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W,
- SWIZZLE_Z, SWIZZLE_W);
- inst[ic].TexSrcUnit = 1;
- inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
-
- /* MOV colorTemp, temp; */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_MOV;
- inst[ic].DstReg.File = PROGRAM_TEMPORARY;
- inst[ic].DstReg.Index = colorTemp;
- inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
- inst[ic].SrcReg[0].Index = temp;
- ic++;
-
- fp->Base.SamplersUsed |= (1 << 1); /* sampler 1 is used */
- }
-
- /* Modify last instruction's dst reg to write to result.color */
- {
- struct prog_instruction *last = &inst[ic - 1];
- last->DstReg.File = PROGRAM_OUTPUT;
- last->DstReg.Index = FRAG_RESULT_COLOR;
- }
-
- /* END; */
- _mesa_init_instructions(inst + ic, 1);
- inst[ic].Opcode = OPCODE_END;
- ic++;
-
- assert(ic <= MAX_INST);
-
-
- fp->Base.Instructions = _mesa_alloc_instructions(ic);
- if (!fp->Base.Instructions) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY,
- "generating pixel transfer program");
- return NULL;
- }
-
- _mesa_copy_instructions(fp->Base.Instructions, inst, ic);
- fp->Base.NumInstructions = ic;
- fp->Base.Parameters = params;
-
-#if 0
- printf("========= pixel transfer prog\n");
- _mesa_print_program(&fp->Base);
- _mesa_print_parameter_list(fp->Base.Parameters);
-#endif
-
- return fp;
-}
-
-
-
-/**
- * Update st->pixel_xfer.program in response to new pixel-transfer state.
- */
-static void
-update_pixel_transfer(struct st_context *st)
-{
- struct gl_context *ctx = st->ctx;
- struct state_key key;
- struct gl_fragment_program *fp;
-
- make_state_key(st->ctx, &key);
-
- fp = (struct gl_fragment_program *)
- _mesa_search_program_cache(st->pixel_xfer.cache, &key, sizeof(key));
- if (!fp) {
- fp = get_pixel_transfer_program(st->ctx, &key);
- _mesa_program_cache_insert(st->ctx, st->pixel_xfer.cache,
- &key, sizeof(key), &fp->Base);
- }
-
- if (ctx->Pixel.MapColorFlag) {
- load_color_map_texture(ctx, st->pixel_xfer.pixelmap_texture);
- }
- st->pixel_xfer.pixelmap_enabled = ctx->Pixel.MapColorFlag;
-
- st->pixel_xfer.program = (struct st_fragment_program *) fp;
-}
-
-
-
-const struct st_tracked_state st_update_pixel_transfer = {
- "st_update_pixel_transfer", /* name */
- { /* dirty */
- _NEW_PIXEL, /* mesa */
- 0, /* st */
- },
- update_pixel_transfer /* update */
-};
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/*
+ * Generate fragment programs to implement pixel transfer ops, such as
+ * scale/bias, colortable, convolution...
+ *
+ * Authors:
+ * Brian Paul
+ */
+
+#include "main/imports.h"
+#include "main/image.h"
+#include "main/macros.h"
+#include "program/program.h"
+#include "program/prog_cache.h"
+#include "program/prog_instruction.h"
+#include "program/prog_parameter.h"
+#include "program/prog_print.h"
+
+#include "st_context.h"
+#include "st_format.h"
+#include "st_texture.h"
+
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "util/u_inlines.h"
+#include "util/u_pack_color.h"
+
+
+struct state_key
+{
+ GLuint scaleAndBias:1;
+ GLuint pixelMaps:1;
+
+#if 0
+ GLfloat Maps[3][256][4];
+ int NumMaps;
+ GLint NumStages;
+ pipeline_stage Stages[STAGE_MAX];
+ GLboolean StagesUsed[STAGE_MAX];
+ GLfloat Scale1[4], Bias1[4];
+ GLfloat Scale2[4], Bias2[4];
+#endif
+};
+
+static void
+make_state_key(struct gl_context *ctx, struct state_key *key)
+{
+ memset(key, 0, sizeof(*key));
+
+ if (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->scaleAndBias = 1;
+ }
+
+ key->pixelMaps = ctx->Pixel.MapColorFlag;
+}
+
+
+static struct pipe_resource *
+create_color_map_texture(struct gl_context *ctx)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_resource *pt;
+ enum pipe_format format;
+ const uint texSize = 256; /* simple, and usually perfect */
+
+ /* find an RGBA texture format */
+ format = st_choose_format(pipe->screen, GL_RGBA,
+ PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
+
+ /* create texture for color map/table */
+ pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0,
+ texSize, texSize, 1, 1, PIPE_BIND_SAMPLER_VIEW);
+ return pt;
+}
+
+
+/**
+ * Update the pixelmap texture with the contents of the R/G/B/A pixel maps.
+ */
+static void
+load_color_map_texture(struct gl_context *ctx, struct pipe_resource *pt)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_transfer *transfer;
+ const GLuint rSize = ctx->PixelMaps.RtoR.Size;
+ const GLuint gSize = ctx->PixelMaps.GtoG.Size;
+ const GLuint bSize = ctx->PixelMaps.BtoB.Size;
+ const GLuint aSize = ctx->PixelMaps.AtoA.Size;
+ const uint texSize = pt->width0;
+ uint *dest;
+ uint i, j;
+
+ transfer = pipe_get_transfer(st_context(ctx)->pipe,
+ pt, 0, 0, PIPE_TRANSFER_WRITE,
+ 0, 0, texSize, texSize);
+ dest = (uint *) pipe_transfer_map(pipe, transfer);
+
+ /* Pack four 1D maps into a 2D texture:
+ * R map is placed horizontally, indexed by S, in channel 0
+ * G map is placed vertically, indexed by T, in channel 1
+ * B map is placed horizontally, indexed by S, in channel 2
+ * A map is placed vertically, indexed by T, in channel 3
+ */
+ for (i = 0; i < texSize; i++) {
+ for (j = 0; j < texSize; j++) {
+ union util_color uc;
+ int k = (i * texSize + j);
+ ubyte r = ctx->PixelMaps.RtoR.Map8[j * rSize / texSize];
+ ubyte g = ctx->PixelMaps.GtoG.Map8[i * gSize / texSize];
+ ubyte b = ctx->PixelMaps.BtoB.Map8[j * bSize / texSize];
+ ubyte a = ctx->PixelMaps.AtoA.Map8[i * aSize / texSize];
+ util_pack_color_ub(r, g, b, a, pt->format, &uc);
+ *(dest + k) = uc.ui;
+ }
+ }
+
+ pipe_transfer_unmap(pipe, transfer);
+ pipe->transfer_destroy(pipe, transfer);
+}
+
+
+
+#define MAX_INST 100
+
+/**
+ * Returns a fragment program which implements the current pixel transfer ops.
+ */
+static struct gl_fragment_program *
+get_pixel_transfer_program(struct gl_context *ctx, const struct state_key *key)
+{
+ struct st_context *st = st_context(ctx);
+ struct prog_instruction inst[MAX_INST];
+ struct gl_program_parameter_list *params;
+ struct gl_fragment_program *fp;
+ GLuint ic = 0;
+ const GLuint colorTemp = 0;
+
+ fp = (struct gl_fragment_program *)
+ ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
+ if (!fp)
+ return NULL;
+
+ params = _mesa_new_parameter_list();
+
+ /*
+ * Get initial pixel color from the texture.
+ * TEX colorTemp, fragment.texcoord[0], texture[0], 2D;
+ */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_TEX;
+ inst[ic].DstReg.File = PROGRAM_TEMPORARY;
+ inst[ic].DstReg.Index = colorTemp;
+ inst[ic].SrcReg[0].File = PROGRAM_INPUT;
+ inst[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
+ inst[ic].TexSrcUnit = 0;
+ inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+ fp->Base.InputsRead = (1 << FRAG_ATTRIB_TEX0);
+ fp->Base.OutputsWritten = BITFIELD64_BIT(FRAG_RESULT_COLOR);
+ fp->Base.SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
+
+ if (key->scaleAndBias) {
+ static const gl_state_index scale_state[STATE_LENGTH] =
+ { STATE_INTERNAL, STATE_PT_SCALE, 0, 0, 0 };
+ static const gl_state_index bias_state[STATE_LENGTH] =
+ { STATE_INTERNAL, STATE_PT_BIAS, 0, 0, 0 };
+ GLfloat scale[4], bias[4];
+ GLint scale_p, bias_p;
+
+ scale[0] = ctx->Pixel.RedScale;
+ scale[1] = ctx->Pixel.GreenScale;
+ scale[2] = ctx->Pixel.BlueScale;
+ scale[3] = ctx->Pixel.AlphaScale;
+ bias[0] = ctx->Pixel.RedBias;
+ bias[1] = ctx->Pixel.GreenBias;
+ bias[2] = ctx->Pixel.BlueBias;
+ bias[3] = ctx->Pixel.AlphaBias;
+
+ scale_p = _mesa_add_state_reference(params, scale_state);
+ bias_p = _mesa_add_state_reference(params, bias_state);
+
+ /* MAD colorTemp, colorTemp, scale, bias; */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_MAD;
+ inst[ic].DstReg.File = PROGRAM_TEMPORARY;
+ inst[ic].DstReg.Index = colorTemp;
+ inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst[ic].SrcReg[0].Index = colorTemp;
+ inst[ic].SrcReg[1].File = PROGRAM_STATE_VAR;
+ inst[ic].SrcReg[1].Index = scale_p;
+ inst[ic].SrcReg[2].File = PROGRAM_STATE_VAR;
+ inst[ic].SrcReg[2].Index = bias_p;
+ ic++;
+ }
+
+ if (key->pixelMaps) {
+ const GLuint temp = 1;
+
+ /* create the colormap/texture now if not already done */
+ if (!st->pixel_xfer.pixelmap_texture) {
+ st->pixel_xfer.pixelmap_texture = create_color_map_texture(ctx);
+ st->pixel_xfer.pixelmap_sampler_view =
+ st_create_texture_sampler_view(st->pipe,
+ st->pixel_xfer.pixelmap_texture);
+ }
+
+ /* with a little effort, we can do four pixel map look-ups with
+ * two TEX instructions:
+ */
+
+ /* TEX temp.rg, colorTemp.rgba, texture[1], 2D; */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_TEX;
+ inst[ic].DstReg.File = PROGRAM_TEMPORARY;
+ inst[ic].DstReg.Index = temp;
+ inst[ic].DstReg.WriteMask = WRITEMASK_XY; /* write R,G */
+ inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst[ic].SrcReg[0].Index = colorTemp;
+ inst[ic].TexSrcUnit = 1;
+ inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+
+ /* TEX temp.ba, colorTemp.baba, texture[1], 2D; */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_TEX;
+ inst[ic].DstReg.File = PROGRAM_TEMPORARY;
+ inst[ic].DstReg.Index = temp;
+ inst[ic].DstReg.WriteMask = WRITEMASK_ZW; /* write B,A */
+ inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst[ic].SrcReg[0].Index = colorTemp;
+ inst[ic].SrcReg[0].Swizzle = MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W,
+ SWIZZLE_Z, SWIZZLE_W);
+ inst[ic].TexSrcUnit = 1;
+ inst[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+
+ /* MOV colorTemp, temp; */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_MOV;
+ inst[ic].DstReg.File = PROGRAM_TEMPORARY;
+ inst[ic].DstReg.Index = colorTemp;
+ inst[ic].SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst[ic].SrcReg[0].Index = temp;
+ ic++;
+
+ fp->Base.SamplersUsed |= (1 << 1); /* sampler 1 is used */
+ }
+
+ /* Modify last instruction's dst reg to write to result.color */
+ {
+ struct prog_instruction *last = &inst[ic - 1];
+ last->DstReg.File = PROGRAM_OUTPUT;
+ last->DstReg.Index = FRAG_RESULT_COLOR;
+ }
+
+ /* END; */
+ _mesa_init_instructions(inst + ic, 1);
+ inst[ic].Opcode = OPCODE_END;
+ ic++;
+
+ assert(ic <= MAX_INST);
+
+
+ fp->Base.Instructions = _mesa_alloc_instructions(ic);
+ if (!fp->Base.Instructions) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "generating pixel transfer program");
+ return NULL;
+ }
+
+ _mesa_copy_instructions(fp->Base.Instructions, inst, ic);
+ fp->Base.NumInstructions = ic;
+ fp->Base.Parameters = params;
+
+#if 0
+ printf("========= pixel transfer prog\n");
+ _mesa_print_program(&fp->Base);
+ _mesa_print_parameter_list(fp->Base.Parameters);
+#endif
+
+ return fp;
+}
+
+
+
+/**
+ * Update st->pixel_xfer.program in response to new pixel-transfer state.
+ */
+static void
+update_pixel_transfer(struct st_context *st)
+{
+ struct gl_context *ctx = st->ctx;
+ struct state_key key;
+ struct gl_fragment_program *fp;
+
+ make_state_key(st->ctx, &key);
+
+ fp = (struct gl_fragment_program *)
+ _mesa_search_program_cache(st->pixel_xfer.cache, &key, sizeof(key));
+ if (!fp) {
+ fp = get_pixel_transfer_program(st->ctx, &key);
+ _mesa_program_cache_insert(st->ctx, st->pixel_xfer.cache,
+ &key, sizeof(key), &fp->Base);
+ }
+
+ if (ctx->Pixel.MapColorFlag) {
+ load_color_map_texture(ctx, st->pixel_xfer.pixelmap_texture);
+ }
+ st->pixel_xfer.pixelmap_enabled = ctx->Pixel.MapColorFlag;
+
+ st->pixel_xfer.program = (struct st_fragment_program *) fp;
+}
+
+
+
+const struct st_tracked_state st_update_pixel_transfer = {
+ "st_update_pixel_transfer", /* name */
+ { /* dirty */
+ _NEW_PIXEL, /* mesa */
+ 0, /* st */
+ },
+ update_pixel_transfer /* update */
+};
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index 5c95eddd0..eccc20757 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1,1488 +1,1488 @@
-/**************************************************************************
- *
- * 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/pbo.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)) {
- 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 */
+/**************************************************************************
+ *
+ * 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/pbo.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 |= BITFIELD64_BIT(FRAG_RESULT_DEPTH);
+ if (write_stencil)
+ p->OutputsWritten |= BITFIELD64_BIT(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)) {
+ 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_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index fc1dfb3ef..0b1ad63af 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -798,7 +798,7 @@ st_translate_geometry_program(struct st_context *st,
* mapping and the semantic information for each output.
*/
for (attr = 0; attr < GEOM_RESULT_MAX; attr++) {
- if (stgp->Base.Base.OutputsWritten & (1 << attr)) {
+ if (stgp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) {
GLuint slot;
slot = gs_num_outputs;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 08:34:07 +0000