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 | 614 |
1 files changed, 307 insertions, 307 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c index 86ceb9d78..db299eb8d 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawtex.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawtex.c @@ -1,307 +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, - 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 */ +/**************************************************************************
+ *
+ * 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 */
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