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intel: During glTexImage, allocate renderbuffers for faking s8z24 textures 

... when using separate stencil.

Define function intel_tex_image_x8z24_create_renderbuffers and call it
in intelTexImage after the miptree has been created and filled with data.

Signed-off-by: Chad Versace <chad@chad-versace.us>
This commit is contained in:
Chad Versace 2011-06-21 15:54:27 -07:00
parent 5cd4d85517
commit d09704b4e9
1 changed files with 62 additions and 0 deletions
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62
src/mesa/drivers/dri/intel/intel_tex_image.c
View File

@ -8,6 +8,7 @@
#include "main/context.h"
#include "main/formats.h"
#include "main/pbo.h"
#include "main/renderbuffer.h"
#include "main/texcompress.h"
#include "main/texstore.h"
#include "main/texgetimage.h"
@ -348,6 +349,61 @@ intel_tex_image_s8z24_gather(struct intel_context *intel,
intel_tex_image_s8z24_scattergather(intel, intel_image, false);
}
static bool
intel_tex_image_s8z24_create_renderbuffers(struct intel_context *intel,
struct intel_texture_image *image)
{
struct gl_context *ctx = &intel->ctx;
bool ok = true;
int width = image->base.Width;
int height = image->base.Height;
struct gl_renderbuffer *drb;
struct gl_renderbuffer *srb;
struct intel_renderbuffer *idrb;
struct intel_renderbuffer *isrb;
assert(intel->has_separate_stencil);
assert(image->base.TexFormat == MESA_FORMAT_S8_Z24);
assert(image->mt != NULL);
drb = intel_create_wrapped_renderbuffer(ctx, width, height,
MESA_FORMAT_X8_Z24);
srb = intel_create_wrapped_renderbuffer(ctx, width, height,
MESA_FORMAT_S8);
if (!drb || !srb) {
if (drb) {
drb->Delete(drb);
}
if (srb) {
srb->Delete(srb);
}
return false;
}
idrb = intel_renderbuffer(drb);
isrb = intel_renderbuffer(srb);
intel_region_reference(&idrb->region, image->mt->region);
ok = intel_alloc_renderbuffer_storage(ctx, srb, GL_STENCIL_INDEX8,
width, height);
if (!ok) {
drb->Delete(drb);
srb->Delete(srb);
return false;
}
intel_renderbuffer_set_draw_offset(idrb, image, 0);
intel_renderbuffer_set_draw_offset(isrb, image, 0);
_mesa_reference_renderbuffer(&image->depth_rb, drb);
_mesa_reference_renderbuffer(&image->stencil_rb, srb);
return true;
}
static void
intelTexImage(struct gl_context * ctx,
GLint dims,
@ -543,6 +599,12 @@ intelTexImage(struct gl_context * ctx,
_mesa_unmap_teximage_pbo(ctx, unpack);
if (intel->must_use_separate_stencil
&& texImage->TexFormat == MESA_FORMAT_S8_Z24) {
intel_tex_image_s8z24_create_renderbuffers(intel, intelImage);
intel_tex_image_s8z24_scatter(intel, intelImage);
}
if (intelImage->mt) {
if (pixels != NULL)
intel_miptree_image_unmap(intel, intelImage->mt);