diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_drawtex.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_drawtex.c | 611 |
1 files changed, 307 insertions, 304 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c index 5976f1048..86ceb9d78 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c @@ -1,304 +1,307 @@ -/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-
-/**
- * Implementation of glDrawTex() for GL_OES_draw_tex
- */
-
-
-
-#include "main/imports.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/program.h"
-#include "program/prog_print.h"
-
-#include "st_context.h"
-#include "st_atom.h"
-#include "st_cb_drawtex.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_shader_tokens.h"
-#include "util/u_draw_quad.h"
-#include "util/u_simple_shaders.h"
-
-#include "cso_cache/cso_context.h"
-
-
-#if FEATURE_OES_draw_texture
-
-
-struct cached_shader
-{
- void *handle;
-
- uint num_attribs;
- uint semantic_names[2 + MAX_TEXTURE_UNITS];
- uint semantic_indexes[2 + MAX_TEXTURE_UNITS];
-};
-
-#define MAX_SHADERS (2 * MAX_TEXTURE_UNITS)
-
-/**
- * Simple linear list cache.
- * Most of the time there'll only be one cached shader.
- */
-static struct cached_shader CachedShaders[MAX_SHADERS];
-static GLuint NumCachedShaders = 0;
-
-
-static void *
-lookup_shader(struct pipe_context *pipe,
- uint num_attribs,
- const uint *semantic_names,
- const uint *semantic_indexes)
-{
- GLuint i, j;
-
- /* look for existing shader with same attributes */
- for (i = 0; i < NumCachedShaders; i++) {
- if (CachedShaders[i].num_attribs == num_attribs) {
- GLboolean match = GL_TRUE;
- for (j = 0; j < num_attribs; j++) {
- if (semantic_names[j] != CachedShaders[i].semantic_names[j] ||
- semantic_indexes[j] != CachedShaders[i].semantic_indexes[j]) {
- match = GL_FALSE;
- break;
- }
- }
- if (match)
- return CachedShaders[i].handle;
- }
- }
-
- /* not found - create new one now */
- if (NumCachedShaders >= MAX_SHADERS) {
- return NULL;
- }
-
- CachedShaders[i].num_attribs = num_attribs;
- for (j = 0; j < num_attribs; j++) {
- CachedShaders[i].semantic_names[j] = semantic_names[j];
- CachedShaders[i].semantic_indexes[j] = semantic_indexes[j];
- }
-
- CachedShaders[i].handle =
- util_make_vertex_passthrough_shader(pipe,
- num_attribs,
- semantic_names,
- semantic_indexes);
- NumCachedShaders++;
-
- return CachedShaders[i].handle;
-}
-
-static void
-st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
- GLfloat width, GLfloat height)
-{
- struct st_context *st = ctx->st;
- struct pipe_context *pipe = st->pipe;
- struct cso_context *cso = ctx->st->cso_context;
- struct pipe_resource *vbuffer;
- struct pipe_transfer *vbuffer_transfer;
- GLuint i, numTexCoords, numAttribs;
- GLboolean emitColor;
- uint semantic_names[2 + MAX_TEXTURE_UNITS];
- uint semantic_indexes[2 + MAX_TEXTURE_UNITS];
- struct pipe_vertex_element velements[2 + MAX_TEXTURE_UNITS];
- GLbitfield inputs = VERT_BIT_POS;
-
- st_validate_state(st);
-
- /* determine if we need vertex color */
- if (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL0)
- emitColor = GL_TRUE;
- else
- emitColor = GL_FALSE;
-
- /* determine how many enabled sets of texcoords */
- numTexCoords = 0;
- for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {
- inputs |= VERT_BIT_TEX(i);
- numTexCoords++;
- }
- }
-
- /* total number of attributes per vertex */
- numAttribs = 1 + emitColor + numTexCoords;
-
-
- /* create the vertex buffer */
- vbuffer = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,
- numAttribs * 4 * 4 * sizeof(GLfloat));
-
- /* load vertex buffer */
- {
-#define SET_ATTRIB(VERT, ATTR, X, Y, Z, W) \
- do { \
- GLuint k = (((VERT) * numAttribs + (ATTR)) * 4); \
- assert(k < 4 * 4 * numAttribs); \
- vbuf[k + 0] = X; \
- vbuf[k + 1] = Y; \
- vbuf[k + 2] = Z; \
- vbuf[k + 3] = W; \
- } while (0)
-
- const GLfloat x0 = x, y0 = y, x1 = x + width, y1 = y + height;
- GLfloat *vbuf = (GLfloat *) pipe_buffer_map(pipe, vbuffer,
- PIPE_TRANSFER_WRITE,
- &vbuffer_transfer);
- GLuint attr;
-
- z = CLAMP(z, 0.0f, 1.0f);
-
- /* positions (in clip coords) */
- {
- 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 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);
- const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);
- const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0);
- const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0);
-
- SET_ATTRIB(0, 0, clip_x0, clip_y0, z, 1.0f); /* lower left */
- SET_ATTRIB(1, 0, clip_x1, clip_y0, z, 1.0f); /* lower right */
- SET_ATTRIB(2, 0, clip_x1, clip_y1, z, 1.0f); /* upper right */
- SET_ATTRIB(3, 0, clip_x0, clip_y1, z, 1.0f); /* upper left */
-
- semantic_names[0] = TGSI_SEMANTIC_POSITION;
- semantic_indexes[0] = 0;
- }
-
- /* colors */
- if (emitColor) {
- const GLfloat *c = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
- SET_ATTRIB(0, 1, c[0], c[1], c[2], c[3]);
- SET_ATTRIB(1, 1, c[0], c[1], c[2], c[3]);
- SET_ATTRIB(2, 1, c[0], c[1], c[2], c[3]);
- SET_ATTRIB(3, 1, c[0], c[1], c[2], c[3]);
- semantic_names[1] = TGSI_SEMANTIC_COLOR;
- semantic_indexes[1] = 0;
- attr = 2;
- }
- else {
- attr = 1;
- }
-
- /* texcoords */
- for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) {
- struct gl_texture_object *obj = ctx->Texture.Unit[i]._Current;
- struct gl_texture_image *img = obj->Image[0][obj->BaseLevel];
- const GLfloat wt = (GLfloat) img->Width;
- const GLfloat ht = (GLfloat) img->Height;
- const GLfloat s0 = obj->CropRect[0] / wt;
- const GLfloat t0 = obj->CropRect[1] / ht;
- const GLfloat s1 = (obj->CropRect[0] + obj->CropRect[2]) / wt;
- const GLfloat t1 = (obj->CropRect[1] + obj->CropRect[3]) / ht;
-
- /*printf("crop texcoords: %g, %g .. %g, %g\n", s0, t0, s1, t1);*/
- SET_ATTRIB(0, attr, s0, t0, 0.0f, 1.0f); /* lower left */
- SET_ATTRIB(1, attr, s1, t0, 0.0f, 1.0f); /* lower right */
- SET_ATTRIB(2, attr, s1, t1, 0.0f, 1.0f); /* upper right */
- SET_ATTRIB(3, attr, s0, t1, 0.0f, 1.0f); /* upper left */
-
- semantic_names[attr] = TGSI_SEMANTIC_GENERIC;
- semantic_indexes[attr] = 0;
-
- attr++;
- }
- }
-
- pipe_buffer_unmap(pipe, vbuffer_transfer);
-
-#undef SET_ATTRIB
- }
-
-
- cso_save_viewport(cso);
- cso_save_vertex_shader(cso);
- cso_save_vertex_elements(cso);
-
- {
- void *vs = lookup_shader(pipe, numAttribs,
- semantic_names, semantic_indexes);
- cso_set_vertex_shader_handle(cso, vs);
- }
-
- for (i = 0; i < numAttribs; i++) {
- velements[i].src_offset = i * 4 * sizeof(float);
- velements[i].instance_divisor = 0;
- velements[i].vertex_buffer_index = 0;
- velements[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
- }
- cso_set_vertex_elements(cso, numAttribs, velements);
-
- /* viewport state: viewport matching window dims */
- {
- const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
- const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
- const GLfloat width = (GLfloat)fb->Width;
- const GLfloat height = (GLfloat)fb->Height;
- struct pipe_viewport_state vp;
- vp.scale[0] = 0.5f * width;
- vp.scale[1] = height * (invert ? -0.5f : 0.5f);
- vp.scale[2] = 1.0f;
- vp.scale[3] = 1.0f;
- vp.translate[0] = 0.5f * width;
- vp.translate[1] = 0.5f * height;
- vp.translate[2] = 0.0f;
- vp.translate[3] = 0.0f;
- cso_set_viewport(cso, &vp);
- }
-
-
- util_draw_vertex_buffer(pipe, vbuffer,
- 0, /* offset */
- PIPE_PRIM_TRIANGLE_FAN,
- 4, /* verts */
- numAttribs); /* attribs/vert */
-
-
- pipe_resource_reference(&vbuffer, NULL);
-
- /* restore state */
- cso_restore_viewport(cso);
- cso_restore_vertex_shader(cso);
- cso_restore_vertex_elements(cso);
-}
-
-
-void
-st_init_drawtex_functions(struct dd_function_table *functions)
-{
- functions->DrawTex = st_DrawTex;
-}
-
-
-/**
- * Free any cached shaders
- */
-void
-st_destroy_drawtex(struct st_context *st)
-{
- GLuint i;
- for (i = 0; i < NumCachedShaders; i++) {
- cso_delete_vertex_shader(st->cso_context, CachedShaders[i].handle);
- }
- NumCachedShaders = 0;
-}
-
-
-#endif /* FEATURE_OES_draw_texture */
+/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + **************************************************************************/ + + +/** + * Implementation of glDrawTex() for GL_OES_draw_tex + */ + + + +#include "main/imports.h" +#include "main/image.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "program/program.h" +#include "program/prog_print.h" + +#include "st_context.h" +#include "st_atom.h" +#include "st_cb_drawtex.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_draw_quad.h" +#include "util/u_simple_shaders.h" + +#include "cso_cache/cso_context.h" + + +#if FEATURE_OES_draw_texture + + +struct cached_shader +{ + void *handle; + + uint num_attribs; + uint semantic_names[2 + MAX_TEXTURE_UNITS]; + uint semantic_indexes[2 + MAX_TEXTURE_UNITS]; +}; + +#define MAX_SHADERS (2 * MAX_TEXTURE_UNITS) + +/** + * Simple linear list cache. + * Most of the time there'll only be one cached shader. + */ +static struct cached_shader CachedShaders[MAX_SHADERS]; +static GLuint NumCachedShaders = 0; + + +static void * +lookup_shader(struct pipe_context *pipe, + uint num_attribs, + const uint *semantic_names, + const uint *semantic_indexes) +{ + GLuint i, j; + + /* look for existing shader with same attributes */ + for (i = 0; i < NumCachedShaders; i++) { + if (CachedShaders[i].num_attribs == num_attribs) { + GLboolean match = GL_TRUE; + for (j = 0; j < num_attribs; j++) { + if (semantic_names[j] != CachedShaders[i].semantic_names[j] || + semantic_indexes[j] != CachedShaders[i].semantic_indexes[j]) { + match = GL_FALSE; + break; + } + } + if (match) + return CachedShaders[i].handle; + } + } + + /* not found - create new one now */ + if (NumCachedShaders >= MAX_SHADERS) { + return NULL; + } + + CachedShaders[i].num_attribs = num_attribs; + for (j = 0; j < num_attribs; j++) { + CachedShaders[i].semantic_names[j] = semantic_names[j]; + CachedShaders[i].semantic_indexes[j] = semantic_indexes[j]; + } + + CachedShaders[i].handle = + util_make_vertex_passthrough_shader(pipe, + num_attribs, + semantic_names, + semantic_indexes); + NumCachedShaders++; + + return CachedShaders[i].handle; +} + +static void +st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z, + GLfloat width, GLfloat height) +{ + struct st_context *st = ctx->st; + struct pipe_context *pipe = st->pipe; + struct cso_context *cso = ctx->st->cso_context; + struct pipe_resource *vbuffer; + struct pipe_transfer *vbuffer_transfer; + GLuint i, numTexCoords, numAttribs; + GLboolean emitColor; + uint semantic_names[2 + MAX_TEXTURE_UNITS]; + uint semantic_indexes[2 + MAX_TEXTURE_UNITS]; + struct pipe_vertex_element velements[2 + MAX_TEXTURE_UNITS]; + GLbitfield inputs = VERT_BIT_POS; + + st_validate_state(st); + + /* determine if we need vertex color */ + if (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_COL0) + emitColor = GL_TRUE; + else + emitColor = GL_FALSE; + + /* determine how many enabled sets of texcoords */ + numTexCoords = 0; + for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { + if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) { + inputs |= VERT_BIT_TEX(i); + numTexCoords++; + } + } + + /* total number of attributes per vertex */ + numAttribs = 1 + emitColor + numTexCoords; + + + /* create the vertex buffer */ + vbuffer = pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STREAM, + numAttribs * 4 * 4 * sizeof(GLfloat)); + + /* load vertex buffer */ + { +#define SET_ATTRIB(VERT, ATTR, X, Y, Z, W) \ + do { \ + GLuint k = (((VERT) * numAttribs + (ATTR)) * 4); \ + assert(k < 4 * 4 * numAttribs); \ + vbuf[k + 0] = X; \ + vbuf[k + 1] = Y; \ + vbuf[k + 2] = Z; \ + vbuf[k + 3] = W; \ + } while (0) + + const GLfloat x0 = x, y0 = y, x1 = x + width, y1 = y + height; + GLfloat *vbuf = (GLfloat *) pipe_buffer_map(pipe, vbuffer, + PIPE_TRANSFER_WRITE, + &vbuffer_transfer); + GLuint attr; + + z = CLAMP(z, 0.0f, 1.0f); + + /* positions (in clip coords) */ + { + 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 = (GLfloat)(x0 / fb_width * 2.0 - 1.0); + const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0); + const GLfloat clip_x1 = (GLfloat)(x1 / fb_width * 2.0 - 1.0); + const GLfloat clip_y1 = (GLfloat)(y1 / fb_height * 2.0 - 1.0); + + SET_ATTRIB(0, 0, clip_x0, clip_y0, z, 1.0f); /* lower left */ + SET_ATTRIB(1, 0, clip_x1, clip_y0, z, 1.0f); /* lower right */ + SET_ATTRIB(2, 0, clip_x1, clip_y1, z, 1.0f); /* upper right */ + SET_ATTRIB(3, 0, clip_x0, clip_y1, z, 1.0f); /* upper left */ + + semantic_names[0] = TGSI_SEMANTIC_POSITION; + semantic_indexes[0] = 0; + } + + /* colors */ + if (emitColor) { + const GLfloat *c = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; + SET_ATTRIB(0, 1, c[0], c[1], c[2], c[3]); + SET_ATTRIB(1, 1, c[0], c[1], c[2], c[3]); + SET_ATTRIB(2, 1, c[0], c[1], c[2], c[3]); + SET_ATTRIB(3, 1, c[0], c[1], c[2], c[3]); + semantic_names[1] = TGSI_SEMANTIC_COLOR; + semantic_indexes[1] = 0; + attr = 2; + } + else { + attr = 1; + } + + /* texcoords */ + for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { + if (ctx->Texture.Unit[i]._ReallyEnabled & TEXTURE_2D_BIT) { + struct gl_texture_object *obj = ctx->Texture.Unit[i]._Current; + struct gl_texture_image *img = obj->Image[0][obj->BaseLevel]; + const GLfloat wt = (GLfloat) img->Width; + const GLfloat ht = (GLfloat) img->Height; + const GLfloat s0 = obj->CropRect[0] / wt; + const GLfloat t0 = obj->CropRect[1] / ht; + const GLfloat s1 = (obj->CropRect[0] + obj->CropRect[2]) / wt; + const GLfloat t1 = (obj->CropRect[1] + obj->CropRect[3]) / ht; + + /*printf("crop texcoords: %g, %g .. %g, %g\n", s0, t0, s1, t1);*/ + SET_ATTRIB(0, attr, s0, t0, 0.0f, 1.0f); /* lower left */ + SET_ATTRIB(1, attr, s1, t0, 0.0f, 1.0f); /* lower right */ + SET_ATTRIB(2, attr, s1, t1, 0.0f, 1.0f); /* upper right */ + SET_ATTRIB(3, attr, s0, t1, 0.0f, 1.0f); /* upper left */ + + semantic_names[attr] = TGSI_SEMANTIC_GENERIC; + semantic_indexes[attr] = 0; + + attr++; + } + } + + pipe_buffer_unmap(pipe, vbuffer_transfer); + +#undef SET_ATTRIB + } + + + cso_save_viewport(cso); + cso_save_vertex_shader(cso); + cso_save_vertex_elements(cso); + cso_save_vertex_buffers(cso); + + { + void *vs = lookup_shader(pipe, numAttribs, + semantic_names, semantic_indexes); + cso_set_vertex_shader_handle(cso, vs); + } + + for (i = 0; i < numAttribs; i++) { + velements[i].src_offset = i * 4 * sizeof(float); + velements[i].instance_divisor = 0; + velements[i].vertex_buffer_index = 0; + velements[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + } + cso_set_vertex_elements(cso, numAttribs, velements); + + /* viewport state: viewport matching window dims */ + { + const struct gl_framebuffer *fb = st->ctx->DrawBuffer; + const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); + const GLfloat width = (GLfloat)fb->Width; + const GLfloat height = (GLfloat)fb->Height; + struct pipe_viewport_state vp; + vp.scale[0] = 0.5f * width; + vp.scale[1] = height * (invert ? -0.5f : 0.5f); + vp.scale[2] = 1.0f; + vp.scale[3] = 1.0f; + vp.translate[0] = 0.5f * width; + vp.translate[1] = 0.5f * height; + vp.translate[2] = 0.0f; + vp.translate[3] = 0.0f; + cso_set_viewport(cso, &vp); + } + + + util_draw_vertex_buffer(pipe, cso, vbuffer, + 0, /* offset */ + PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + numAttribs); /* attribs/vert */ + + + pipe_resource_reference(&vbuffer, NULL); + + /* restore state */ + cso_restore_viewport(cso); + cso_restore_vertex_shader(cso); + cso_restore_vertex_elements(cso); + cso_restore_vertex_buffers(cso); +} + + +void +st_init_drawtex_functions(struct dd_function_table *functions) +{ + functions->DrawTex = st_DrawTex; +} + + +/** + * Free any cached shaders + */ +void +st_destroy_drawtex(struct st_context *st) +{ + GLuint i; + for (i = 0; i < NumCachedShaders; i++) { + cso_delete_vertex_shader(st->cso_context, CachedShaders[i].handle); + } + NumCachedShaders = 0; +} + + +#endif /* FEATURE_OES_draw_texture */ |