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swrast: add debug code to test combined depth/stencil buffers 

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Brian Paul 2011-12-10 11:44:44 -07:00
parent 8ba9c22cdb
commit d7c0fac90b
1 changed files with 46 additions and 6 deletions
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52
src/mesa/swrast/s_renderbuffer.c
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@ -1888,6 +1888,31 @@ add_stencil_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
}
static GLboolean
add_depth_stencil_renderbuffer(struct gl_context *ctx,
struct gl_framebuffer *fb)
{
struct gl_renderbuffer *rb;
assert(fb->Attachment[BUFFER_DEPTH].Renderbuffer == NULL);
assert(fb->Attachment[BUFFER_STENCIL].Renderbuffer == NULL);
rb = _mesa_new_renderbuffer(ctx, 0);
if (!rb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating depth+stencil buffer");
return GL_FALSE;
}
rb->InternalFormat = GL_DEPTH_STENCIL;
rb->AllocStorage = soft_renderbuffer_storage;
_mesa_add_renderbuffer(fb, BUFFER_DEPTH, rb);
_mesa_add_renderbuffer(fb, BUFFER_STENCIL, rb);
return GL_TRUE;
}
/**
* Add a software-based accumulation renderbuffer to the given framebuffer.
* This is a helper routine for device drivers when creating a
@ -1999,14 +2024,29 @@ _swrast_add_soft_renderbuffers(struct gl_framebuffer *fb,
frontRight, backRight);
}
if (depth) {
assert(fb->Visual.depthBits > 0);
add_depth_renderbuffer(NULL, fb, fb->Visual.depthBits);
#if 0
/* This is pretty much for debugging purposes only since there's a perf
* hit for using combined depth/stencil in swrast.
*/
if (depth && fb->Visual.depthBits == 24 &&
stencil && fb->Visual.stencilBits == 8) {
/* use combined depth/stencil buffer */
add_depth_stencil_renderbuffer(NULL, fb);
}
else
#else
(void) add_depth_stencil_renderbuffer;
#endif
{
if (depth) {
assert(fb->Visual.depthBits > 0);
add_depth_renderbuffer(NULL, fb, fb->Visual.depthBits);
}
if (stencil) {
assert(fb->Visual.stencilBits > 0);
add_stencil_renderbuffer(NULL, fb, fb->Visual.stencilBits);
if (stencil) {
assert(fb->Visual.stencilBits > 0);
add_stencil_renderbuffer(NULL, fb, fb->Visual.stencilBits);
}
}
if (accum) {