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intel: Add fields to intel_texture for faking s8z24 with separate stencil

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Add the fields depth_rb and stencil_rb, and put hooks in place to
release the renderbuffers in intelFreeTextureImageData and
intelTexImage.

Signed-off-by: Chad Versace <chad@chad-versace.us>
This commit is contained in:
Chad Versace
2011-06-21 13:44:57 -07:00
parent 407832b0d2
commit 1a062dfc6f
3 changed files with 40 additions and 12 deletions
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9
src/mesa/drivers/dri/intel/intel_tex.c
View File

@@ -1,4 +1,5 @@
#include "swrast/swrast.h"
#include "main/renderbuffer.h"
#include "main/texobj.h"
#include "main/teximage.h"
#include "main/mipmap.h"
@@ -59,6 +60,14 @@ intelFreeTextureImageData(struct gl_context * ctx, struct gl_texture_image *texI
_mesa_free_texmemory(texImage->Data);
texImage->Data = NULL;
}
if (intelImage->depth_rb) {
_mesa_reference_renderbuffer(&intelImage->depth_rb, NULL);
}
if (intelImage->stencil_rb) {
_mesa_reference_renderbuffer(&intelImage->stencil_rb, NULL);
}
}
/**

13
src/mesa/drivers/dri/intel/intel_tex_image.c
View File

@@ -314,18 +314,7 @@ intelTexImage(struct gl_context * ctx,
}
}
/* Release the reference to a potentially orphaned buffer.
* Release any old malloced memory.
*/
if (intelImage->mt) {
intel_miptree_release(intel, &intelImage->mt);
assert(!texImage->Data);
}
else if (texImage->Data) {
_mesa_free_texmemory(texImage->Data);
texImage->Data = NULL;
}
ctx->Driver.FreeTexImageData(ctx, texImage);
assert(!intelImage->mt);
if (intelObj->mt &&

30
src/mesa/drivers/dri/intel/intel_tex_obj.h
View File

@@ -63,6 +63,36 @@ struct intel_texture_image
*/
struct intel_mipmap_tree *mt;
GLboolean used_as_render_target;
/**
* \name Renderbuffers for faking packed depth/stencil
*
* These renderbuffers are non-null only if the intel_context is using
* separate stencil and this texture has a packed depth/stencil format. When
* glFramebufferTexture is called on this image, the resultant renderbuffer
* wrapper reuses these renderbuffers as its own.
*
* \see intel_wrap_texture
* \see intel_tex_image_s8z24_create_renderbuffers
* \see intel_tex_image_s8z24_scatter
* \see intel_tex_image_s8z24_gather
*
* \{
*/
/**
* The depth buffer has format X8_Z24. The x8 bits are undefined unless
* intel_tex_image_s8z24_gather has been immediately called. The depth buffer
* resuses the image miptree's region and hiz_region as its own.
*/
struct gl_renderbuffer *depth_rb;
/**
* The stencil buffer has format S8 and keeps its data in its own region.
*/
struct gl_renderbuffer *stencil_rb;
/** \} */
};
static INLINE struct intel_texture_object *