Merge branch 'mesa_7_6_branch'
[mesa.git] / src / mesa / state_tracker / st_texture.c
index 29b16347625073f54bef26122c16bb29501925bc..bbc2830e69413069b19244f11c0d3b20afc96fd0 100644 (file)
 #include "st_public.h"
 #include "st_texture.h"
 #include "st_cb_fbo.h"
+#include "st_inlines.h"
 #include "main/enums.h"
+#include "main/texobj.h"
 #include "main/teximage.h"
+#include "main/texstore.h"
 
 #undef Elements  /* fix re-defined macro warning */
 
@@ -39,7 +42,6 @@
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_inlines.h"
-#include "pipe/p_inlines.h"
 #include "util/u_rect.h"
 
 
@@ -78,7 +80,6 @@ st_texture_create(struct st_context *st,
                  GLuint width0,
                  GLuint height0,
                  GLuint depth0,
-                 GLuint compress_byte,
                   GLuint usage )
 {
    struct pipe_texture pt, *newtex;
@@ -101,23 +102,19 @@ st_texture_create(struct st_context *st,
    pt.width[0] = width0;
    pt.height[0] = height0;
    pt.depth[0] = depth0;
-   pt.compressed = compress_byte ? 1 : 0;
    pf_get_block(format, &pt.block);
    pt.tex_usage = usage;
 
    newtex = screen->texture_create(screen, &pt);
 
-   assert(!newtex || newtex->refcount == 1);
+   assert(!newtex || pipe_is_referenced(&newtex->reference));
 
    return newtex;
 }
 
 
 /**
- * Check if a texture image be pulled into a unified mipmap texture.
- * This mirrors the completeness test in a lot of ways.
- *
- * Not sure whether I want to pass gl_texture_image here.
+ * Check if a texture image can be pulled into a unified mipmap texture.
  */
 GLboolean
 st_texture_match_image(const struct pipe_texture *pt,
@@ -129,13 +126,13 @@ st_texture_match_image(const struct pipe_texture *pt,
    if (image->Border) 
       return GL_FALSE;
 
-   if (st_mesa_format_to_pipe_format(image->TexFormat->MesaFormat) != pt->format ||
-       image->IsCompressed != pt->compressed)
+   /* Check if this image's format matches the established texture's format.
+    */
+   if (st_mesa_format_to_pipe_format(image->TexFormat->MesaFormat) != pt->format)
       return GL_FALSE;
 
-   /* Test image dimensions against the base level image adjusted for
-    * minification.  This will also catch images not present in the
-    * texture, changed targets, etc.
+   /* Test if this image's size matches what's expected in the
+    * established texture.
     */
    if (image->Width != pt->width[level] ||
        image->Height != pt->height[level] ||
@@ -190,19 +187,21 @@ st_texture_image_offset(const struct pipe_texture * pt,
  */
 GLubyte *
 st_texture_image_map(struct st_context *st, struct st_texture_image *stImage,
-                    GLuint zoffset,
-                     GLuint flags )
+                    GLuint zoffset, enum pipe_transfer_usage usage,
+                     GLuint x, GLuint y, GLuint w, GLuint h)
 {
-   struct pipe_screen *screen = st->pipe->screen;
+   struct pipe_context *pipe = st->pipe;
+   struct pipe_screen *screen = pipe->screen;
    struct pipe_texture *pt = stImage->pt;
+
    DBG("%s \n", __FUNCTION__);
 
-   stImage->surface = screen->get_tex_surface(screen, pt, stImage->face,
-                                              stImage->level, zoffset, 
-                                              flags);
+   stImage->transfer = st_no_flush_get_tex_transfer(st, pt, stImage->face,
+                                                   stImage->level, zoffset,
+                                                   usage, x, y, w, h);
 
-   if (stImage->surface)
-      return screen->surface_map(screen, stImage->surface, flags);
+   if (stImage->transfer)
+      return screen->transfer_map(screen, stImage->transfer);
    else
       return NULL;
 }
@@ -216,9 +215,9 @@ st_texture_image_unmap(struct st_context *st,
 
    DBG("%s\n", __FUNCTION__);
 
-   screen->surface_unmap(screen, stImage->surface);
+   screen->transfer_unmap(screen, stImage->transfer);
 
-   pipe_surface_reference(&stImage->surface, NULL);
+   screen->tex_transfer_destroy(stImage->transfer);
 }
 
 
@@ -233,15 +232,15 @@ st_texture_image_unmap(struct st_context *st,
  */
 static void
 st_surface_data(struct pipe_context *pipe,
-               struct pipe_surface *dst,
+               struct pipe_transfer *dst,
                unsigned dstx, unsigned dsty,
                const void *src, unsigned src_stride,
                unsigned srcx, unsigned srcy, unsigned width, unsigned height)
 {
    struct pipe_screen *screen = pipe->screen;
-   void *map = screen->surface_map(screen, dst, PIPE_BUFFER_USAGE_CPU_WRITE);
+   void *map = screen->transfer_map(screen, dst);
 
-   pipe_copy_rect(map,
+   util_copy_rect(map,
                   &dst->block,
                   dst->stride,
                   dstx, dsty, 
@@ -249,39 +248,43 @@ st_surface_data(struct pipe_context *pipe,
                   src, src_stride, 
                   srcx, srcy);
 
-   screen->surface_unmap(screen, dst);
+   screen->transfer_unmap(screen, dst);
 }
 
 
 /* Upload data for a particular image.
  */
 void
-st_texture_image_data(struct pipe_context *pipe,
+st_texture_image_data(struct st_context *st,
                       struct pipe_texture *dst,
                       GLuint face,
                       GLuint level,
                       void *src,
                       GLuint src_row_stride, GLuint src_image_stride)
 {
+   struct pipe_context *pipe = st->pipe;
    struct pipe_screen *screen = pipe->screen;
    GLuint depth = dst->depth[level];
    GLuint i;
    const GLubyte *srcUB = src;
-   struct pipe_surface *dst_surface;
+   struct pipe_transfer *dst_transfer;
 
    DBG("%s\n", __FUNCTION__);
+
    for (i = 0; i < depth; i++) {
-      dst_surface = screen->get_tex_surface(screen, dst, face, level, i,
-                                            PIPE_BUFFER_USAGE_CPU_WRITE);
+      dst_transfer = st_no_flush_get_tex_transfer(st, dst, face, level, i,
+                                                 PIPE_TRANSFER_WRITE, 0, 0,
+                                                 dst->width[level],
+                                                 dst->height[level]);
 
-      st_surface_data(pipe, dst_surface,
+      st_surface_data(pipe, dst_transfer,
                      0, 0,                             /* dstx, dsty */
                      srcUB,
                      src_row_stride,
                      0, 0,                             /* source x, y */
                      dst->width[level], dst->height[level]);       /* width, height */
 
-      screen->tex_surface_release(screen, &dst_surface);
+      screen->tex_transfer_destroy(dst_transfer);
 
       srcUB += src_image_stride;
    }
@@ -340,16 +343,138 @@ st_texture_image_copy(struct pipe_context *pipe,
                                             PIPE_BUFFER_USAGE_GPU_READ);
 
       pipe->surface_copy(pipe,
-                         FALSE,
                         dst_surface,
                         0, 0, /* destX, Y */
                         src_surface,
                         0, 0, /* srcX, Y */
                         width, height);
 
-      screen->tex_surface_release(screen, &src_surface);
-      screen->tex_surface_release(screen, &dst_surface);
+      pipe_surface_reference(&src_surface, NULL);
+      pipe_surface_reference(&dst_surface, NULL);
+   }
+}
+
+
+/**
+ * Bind a pipe surface to a texture object.  After the call,
+ * the texture object is marked dirty and will be (re-)validated.
+ *
+ * If this is the first surface bound, the texture object is said to
+ * switch from normal to surface based.  It will be cleared first in
+ * this case.
+ *
+ * \param ps      pipe surface to be unbound
+ * \param target  texture target
+ * \param level   image level
+ * \param format  internal format of the texture
+ */
+int
+st_bind_texture_surface(struct pipe_surface *ps, int target, int level,
+                        enum pipe_format format)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   const GLuint unit = ctx->Texture.CurrentUnit;
+   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+   struct gl_texture_object *texObj;
+   struct gl_texture_image *texImage;
+   struct st_texture_object *stObj;
+   struct st_texture_image *stImage;
+   GLenum internalFormat;
+
+   switch (target) {
+   case ST_TEXTURE_2D:
+      target = GL_TEXTURE_2D;
+      break;
+   case ST_TEXTURE_RECT:
+      target = GL_TEXTURE_RECTANGLE_ARB;
+      break;
+   default:
+      return 0;
+   }
+
+   /* map pipe format to base format for now */
+   if (pf_get_component_bits(format, PIPE_FORMAT_COMP_A) > 0)
+      internalFormat = GL_RGBA;
+   else
+      internalFormat = GL_RGB;
+
+   texObj = _mesa_select_tex_object(ctx, texUnit, target);
+   _mesa_lock_texture(ctx, texObj);
+
+   stObj = st_texture_object(texObj);
+   /* switch to surface based */
+   if (!stObj->surface_based) {
+      _mesa_clear_texture_object(ctx, texObj);
+      stObj->surface_based = GL_TRUE;
+   }
+
+   texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+   stImage = st_texture_image(texImage);
+
+   _mesa_init_teximage_fields(ctx, target, texImage,
+                              ps->width, ps->height, 1, 0, internalFormat);
+   texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat,
+                                                GL_RGBA, GL_UNSIGNED_BYTE);
+   _mesa_set_fetch_functions(texImage, 2);
+   pipe_texture_reference(&stImage->pt, ps->texture);
+
+   _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
+   _mesa_unlock_texture(ctx, texObj);
+   
+   return 1;
+}
+
+
+/**
+ * Unbind a pipe surface from a texture object.  After the call,
+ * the texture object is marked dirty and will be (re-)validated.
+ *
+ * \param ps      pipe surface to be unbound
+ * \param target  texture target
+ * \param level   image level
+ */
+int
+st_unbind_texture_surface(struct pipe_surface *ps, int target, int level)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   const GLuint unit = ctx->Texture.CurrentUnit;
+   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+   struct gl_texture_object *texObj;
+   struct gl_texture_image *texImage;
+   struct st_texture_object *stObj;
+   struct st_texture_image *stImage;
+
+   switch (target) {
+   case ST_TEXTURE_2D:
+      target = GL_TEXTURE_2D;
+      break;
+   case ST_TEXTURE_RECT:
+      target = GL_TEXTURE_RECTANGLE_ARB;
+      break;
+   default:
+      return 0;
+   }
+
+   texObj = _mesa_select_tex_object(ctx, texUnit, target);
+
+   _mesa_lock_texture(ctx, texObj);
+
+   texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+   stObj = st_texture_object(texObj);
+   stImage = st_texture_image(texImage);
+
+   /* Make sure the pipe surface is still bound.  The texture object is still
+    * considered surface based even if this is the last bound surface. */
+   if (stImage->pt == ps->texture) {
+      pipe_texture_reference(&stImage->pt, NULL);
+      _mesa_clear_texture_image(ctx, texImage);
+
+      _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
    }
+
+   _mesa_unlock_texture(ctx, texObj);
+   
+   return 1;
 }
 
 
@@ -380,7 +505,7 @@ st_bind_teximage(struct st_framebuffer *stfb, uint surfIndex,
    }
 
    if (target == ST_TEXTURE_2D) {
-      texObj = texUnit->Current2D;
+      texObj = texUnit->CurrentTex[TEXTURE_2D_INDEX];
       texImage = _mesa_get_tex_image(ctx, texObj, GL_TEXTURE_2D, level);
       stImage = st_texture_image(texImage);
    }
@@ -439,3 +564,20 @@ st_release_teximage(struct st_framebuffer *stfb, uint surfIndex,
 
    return 1;
 }
+
+void
+st_teximage_flush_before_map(struct st_context *st,
+                            struct pipe_texture *pt,
+                            unsigned int face,
+                            unsigned int level,
+                            enum pipe_transfer_usage usage)
+{
+   struct pipe_context *pipe = st->pipe;
+   unsigned referenced =
+      pipe->is_texture_referenced(pipe, pt, face, level);
+
+   if (referenced && ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
+                     usage == PIPE_TRANSFER_WRITE ||
+                     usage == PIPE_TRANSFER_READ_WRITE))
+      st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL);
+}