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authorRoland Scheidegger <sroland@vmware.com>2009-06-19 20:00:55 +0200
committerRoland Scheidegger <sroland@vmware.com>2009-06-19 20:00:55 +0200
commit43bb78f2bb6c851d989903e7eb996e87113d878c (patch)
treeb17aa801f33c999289bfe2f8e078cdad102aee0b /src/mesa/drivers/dri/r300/r300_context.c
parent9dfce365c7f35ddea6d81b7f595ddcd6d35382a5 (diff)
radeons: use dp4 for position invariant vertex programs
Fixes #22181. R200 requires this since DP4 is used in hw tnl mode. R300 prefers it (should be faster due to no instruction dependencies), but both methods should be correct (when sw tcl is used though, MUL/MAD might be faster). Probably doesn't make much difference for R100 since vertex progs are executed in software anyway, but let's just keep it the same there too.
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_context.c')
-rw-r--r--src/mesa/drivers/dri/r300/r300_context.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c
index 8f0effd83e..7d6705058f 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -327,6 +327,8 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
ctx->Const.MaxDrawBuffers = 1;
+ _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
+
/* Initialize the software rasterizer and helper modules.
*/
_swrast_CreateContext(ctx);