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intel: Resolve buffers in intelSpanRenderStart

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Resolve all buffers that will be mapped by intelSpanRenderStart. This
comprises resolving the depth buffer of each enabled texture and of the
read and draw buffers.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
This commit is contained in:
Chad Versace 2011-11-15 18:21:05 -08:00
parent 1eede4aa87
commit 622bae07a5
1 changed files with 39 additions and 1 deletions
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40
src/mesa/drivers/dri/intel/intel_span.c
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@ -253,6 +253,42 @@ intel_framebuffer_unmap(struct intel_context *intel, struct gl_framebuffer *fb)
}
}
/**
* Resolve all buffers that will be mapped by intelSpanRenderStart().
*
* Resolve the depth buffer of each enabled texture and of the read and draw
* buffers.
*
* (Note: In the future this will also perform MSAA resolves.)
*/
static void
intel_span_resolve_buffers(struct intel_context *intel)
{
struct gl_context *ctx = &intel->ctx;
struct intel_renderbuffer *draw_irb;
struct intel_renderbuffer *read_irb;
struct intel_texture_object *tex_obj;
/* Resolve depth buffer of each enabled texture. */
for (int i = 0; i < ctx->Const.MaxTextureImageUnits; i++) {
if (!ctx->Texture.Unit[i]._ReallyEnabled)
continue;
tex_obj = intel_texture_object(ctx->Texture.Unit[i]._Current);
intel_finalize_mipmap_tree(intel, i);
if (!tex_obj || !tex_obj->mt)
continue;
intel_miptree_all_slices_resolve_depth(intel, tex_obj->mt);
}
/* Resolve each attached depth buffer. */
draw_irb = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_DEPTH);
read_irb = intel_get_renderbuffer(ctx->ReadBuffer, BUFFER_DEPTH);
if (draw_irb)
intel_renderbuffer_resolve_depth(intel, draw_irb);
if (read_irb != draw_irb && read_irb)
intel_renderbuffer_resolve_depth(intel, read_irb);
}
/**
* Map the regions needed by intelSpanRenderStart().
*/
@ -288,8 +324,10 @@ intelSpanRenderStart(struct gl_context * ctx)
{
struct intel_context *intel = intel_context(ctx);
intel_flush(&intel->ctx);
intel_flush(ctx);
intel_prepare_render(intel);
intel_span_resolve_buffers(intel);
intel_flush(ctx);
intel_span_map_buffers(intel);
}