https://bugs.freedesktop.org/show_bug.cgi?id=47375
--- Comment #42 from Barto <mister.free...@laposte.net> 2012-07-27 01:40:32 PDT
---
(In reply to comment #40)
>
> --- a/src/mesa/drivers/common/meta.c
> +++ b/src/mesa/drivers/common/meta.c
> @@ -2280,8 +2280,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
> * Determine if we can do the glDrawPixels with texture mapping.
> */
> fallback = GL_FALSE;
> - if (ctx->_ImageTransferState ||
> - ctx->Fog.Enabled) {
> + if (ctx->Fog.Enabled) {
> fallback = GL_TRUE;
> }
congratulations !
I used your patch and now all is ok with blender and mesa 8.0.4,
blender is now very fast, no lag in GUI, it's great !
a simple change in src/mesa/drivers/common/meta.c seems to speed up blender :
the good conditionnal in line 2256 seems to fix the lag in blender :
if (ctx->Fog.Enabled) {
fallback = GL_TRUE;
}
I think the bug is solved now with these 2 changes :
1) the fix from Brian solves the crash at startup ( adding this line in
radeon_span.c, after the line 68 :
rrb->base.ColorType = GL_UNSIGNED_BYTE; )
2) and this optimization from Roland solves the slowness :
if (ctx->Fog.Enabled) {
fallback = GL_TRUE;
}
in meta.c at line 2256
thank you both
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