pixman mesa git update 16 Feb 2011

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 */