On 10/26/2011 04:28 PM, Marek Olšák wrote:
This adds a function that takes an array of varyings from
glTranformFeedbackVaryingsEXT and generates gl_transform_feedback_info,
which is supposed to be consumed by drivers. Useful for ir_to_mesa
and glsl_to_tgsi.
With Dan McCabe's patch, I think this is all that's needed for transform
feedback GLSL support. This work should probably be better integrated with
Dan's code though (maybe some stuff that's done here should be done
in the linker instead).
What's missing is reporting linker errors (AFAIK). This patch just covers
the post-link part.
The piglit tests ext_transform_feedback-position,separate,interleaved
pass with this.
---
src/glsl/Makefile | 1 +
src/glsl/ir.h | 15 ++
src/glsl/ir_set_transform_feedback_outs.cpp | 299 +++++++++++++++++++++++++++
src/mesa/main/mtypes.h | 12 +
4 files changed, 327 insertions(+), 0 deletions(-)
create mode 100644 src/glsl/ir_set_transform_feedback_outs.cpp
New files should also be added to src/glsl/SConscript.
-Brian
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