glsl/types: Add a bare "sampler" type

This is to be used by SPIR-V for representing a sampler that isn't attached
to any particular image.  In SPIR-V, all of the interesting bits such as
dimensionality, sampled type, etc. come from the image, the bare "sampler"
type simply uses a sampled type of VOID and 0 values for the rest.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

diff --git a/src/compiler/builtin_type_macros.h b/src/compiler/builtin_type_macros.h
index 7bd2e4e65583c9cc085d70c97533251a380f40b1..da3f19e7ab2c109e0974aff1d216efbb625caee7 100644 (file)
--- a/src/compiler/builtin_type_macros.h
+++ b/src/compiler/builtin_type_macros.h
@@ -78,6 +78,7 @@ DECL_TYPE(dmat3x4, GL_DOUBLE_MAT3x4, GLSL_TYPE_DOUBLE, 4, 3)
 DECL_TYPE(dmat4x2, GL_DOUBLE_MAT4x2, GLSL_TYPE_DOUBLE, 2, 4)
 DECL_TYPE(dmat4x3, GL_DOUBLE_MAT4x3, GLSL_TYPE_DOUBLE, 3, 4)
 
+DECL_TYPE(sampler,           GL_SAMPLER_1D,                   GLSL_TYPE_SAMPLER, GLSL_SAMPLER_DIM_1D,   0, 0, GLSL_TYPE_VOID)
 DECL_TYPE(sampler1D,         GL_SAMPLER_1D,                   GLSL_TYPE_SAMPLER, GLSL_SAMPLER_DIM_1D,   0, 0, GLSL_TYPE_FLOAT)
 DECL_TYPE(sampler2D,         GL_SAMPLER_2D,                   GLSL_TYPE_SAMPLER, GLSL_SAMPLER_DIM_2D,   0, 0, GLSL_TYPE_FLOAT)
 DECL_TYPE(sampler3D,         GL_SAMPLER_3D,                   GLSL_TYPE_SAMPLER, GLSL_SAMPLER_DIM_3D,   0, 0, GLSL_TYPE_FLOAT)