Marek Olšák d4a06d77f5 mesa: fix GLSL program objects with more than 16 samplers combined ... The problem is the sampler units are allocated from the same pool for all shader stages, so if a vertex shader uses 12 samplers (0..11), the fragment shader samplers start at index 12, leaving only 4 sampler units for the fragment shader. The main cause is probably the fact that samplers (texture unit -> sampler unit mapping, etc.) are tracked globally for an entire program object. This commit adapts the GLSL linker and core Mesa such that the sampler units are assigned to sampler uniforms for each shader stage separately (if a sampler uniform is used in all shader stages, it may occupy a different sampler unit in each, and vice versa, an i-th sampler unit may refer to a different sampler uniform in each shader stage), and the sampler-specific variables are moved from gl_shader_program to gl_shader. This doesn't require any driver changes, and it fixes piglit/max-samplers for gallium and classic swrast. It also works with any number of shader stages. v2: - converted tabs to spaces - added an assertion to _mesa_get_sampler_uniform_value Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Eric Anholt <eric@anholt.net>		2013-05-28 13:05:30 +02:00
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lower_jumps	glsl: Add unit tests for lower_jumps.cpp	2011-07-22 09:45:11 -07:00
.gitignore	Clean up .gitignore files	2013-01-10 22:01:31 +01:00
compare_ir	glsl: Add unit tests for lower_jumps.cpp	2011-07-22 09:45:11 -07:00
copy_constant_to_storage_tests.cpp	glsl/tests: Add test for uniform initialization by the linker	2012-05-23 11:42:08 -07:00
optimization-test	glsl/build: Build tests via the glsl Makefile	2013-01-22 14:33:24 -08:00
ralloc_test.cpp	ralloc: Add some basic unit tests.	2012-05-30 21:49:41 -07:00
set_uniform_initializer_tests.cpp	mesa: fix GLSL program objects with more than 16 samplers combined	2013-05-28 13:05:30 +02:00
sexps.py	glsl: Add unit tests for lower_jumps.cpp	2011-07-22 09:45:11 -07:00
uniform_initializer_utils.cpp	glsl: Add GLSL_TYPE_INTERFACE	2013-01-25 09:07:33 -05:00
uniform_initializer_utils.h	glsl/tests: Add test for uniform initialization by the linker	2012-05-23 11:42:08 -07:00