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mesa/st: wire up DiscardFramebuffer

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Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jonathan Marek 2019-01-21 11:29:59 -05:00 • committed by Rob Clark
parent 0c42b5f3cb
commit 786f9639d6
1 changed files with 25 additions and 0 deletions
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25
src/mesa/state_tracker/st_cb_fbo.c
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@ -762,6 +762,30 @@ st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
}
/**
* Called by ctx->Driver.DiscardFramebuffer
*/
static void
st_discard_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_resource *prsc;
if (!att->Renderbuffer)
return;
prsc = st_renderbuffer(att->Renderbuffer)->surface->texture;
/* using invalidate_resource will only work for simple 2D resources */
if (prsc->depth0 != 1 || prsc->array_size != 1 || prsc->last_level != 0)
return;
if (st->pipe->invalidate_resource)
st->pipe->invalidate_resource(st->pipe, prsc);
}
/**
* Called via glDrawBuffer. We only provide this driver function so that we
* can check if we need to allocate a new renderbuffer. Specifically, we
@ -939,6 +963,7 @@ st_init_fbo_functions(struct dd_function_table *functions)
functions->RenderTexture = st_render_texture;
functions->FinishRenderTexture = st_finish_render_texture;
functions->ValidateFramebuffer = st_validate_framebuffer;
functions->DiscardFramebuffer = st_discard_framebuffer;
functions->DrawBufferAllocate = st_DrawBufferAllocate;
functions->ReadBuffer = st_ReadBuffer;