Merge branch 'outputswritten64'
Add a GLbitfield64 type and several macros to operate on 64-bit
fields. The OutputsWritten field of gl_program is changed to use that
type. This results in a fair amount of fallout in drivers that use
programs.
No changes are strictly necessary at this point as all bits used are
below the 32-bit boundary. Fairly soon several bits will be added for
clip distances written by a vertex shader. This will cause several
bits used for varyings to be pushed above the 32-bit boundary. This
will affect any drivers that support GLSL.
At this point, only the i965 driver has been modified to support this
eventuality.
I did this as a "squash" merge. There were several places through the
outputswritten64 branch where things were broken. I foresee this
causing difficulties later for bisecting. The history is still
available in the branch.
Conflicts:
src/mesa/drivers/dri/i965/brw_wm.h
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 101d3c6..b5bf467 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -601,9 +601,11 @@
ASSERT(MAX_NV_VERTEX_PROGRAM_INPUTS <= VERT_ATTRIB_MAX);
ASSERT(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX);
- /* check that we don't exceed various 32-bit bitfields */
- ASSERT(VERT_RESULT_MAX <= 32);
- ASSERT(FRAG_ATTRIB_MAX <= 32);
+ /* check that we don't exceed the size of various bitfields */
+ ASSERT(VERT_RESULT_MAX <=
+ (8 * sizeof(ctx->VertexProgram._Current->Base.OutputsWritten)));
+ ASSERT(FRAG_ATTRIB_MAX <=
+ (8 * sizeof(ctx->FragmentProgram._Current->Base.InputsRead)));
}