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mesa/r300classic: Fix dri2Invalidate/radeon_prepare_render for page flipping.

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A call to radeon_prepare_render() at the beginning of draw
operations was placed too deep in the call chain,
inside r300RunRenderPrimitive(), instead of
r300DrawPrims() where it belongs. This leads to
emission of stale target color renderbuffer into the cs if
bufferswaps via page-flipping are used, and thereby causes
massive rendering corruption due to unsynchronized
rendering into the active frontbuffer.

This patch fixes such problems for use with the
upcoming radeon page-flipping patches.

Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
This commit is contained in:
Mario Kleiner 2010-11-08 04:09:33 +01:00 • committed by Alex Deucher
parent 46c1970067
commit d8eef5196f
2 changed files with 4 additions and 2 deletions
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4
src/mesa/drivers/dri/r300/r300_draw.c
View file

@ -717,6 +717,10 @@ static void r300DrawPrims(struct gl_context *ctx,
GLuint max_index)
{
GLboolean retval;
struct r300_context *r300 = R300_CONTEXT(ctx);
radeonContextPtr radeon = &r300->radeon;
radeon_prepare_render(radeon);
/* This check should get folded into just the places that
* min/max index are really needed.

2
src/mesa/drivers/dri/r300/r300_render.c
View file

@ -327,8 +327,6 @@ void r300RunRenderPrimitive(struct gl_context * ctx, int start, int end, int pri
BATCH_LOCALS(&rmesa->radeon);
int type, num_verts;
radeon_prepare_render(&rmesa->radeon);
type = r300PrimitiveType(rmesa, prim);
num_verts = r300NumVerts(rmesa, end - start, prim);