diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/shader/shader_api.c | 63 |
1 files changed, 36 insertions, 27 deletions
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c index afd2c2af7de..b8b34bb2b45 100644 --- a/src/mesa/shader/shader_api.c +++ b/src/mesa/shader/shader_api.c @@ -1,8 +1,9 @@ /* * Mesa 3-D graphics library - * Version: 7.2 + * Version: 7.5 * * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -827,6 +828,27 @@ is_integer_type(GLenum type) } +static GLboolean +is_sampler_type(GLenum type) +{ + switch (type) { + case GL_SAMPLER_1D: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_1D_SHADOW: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_2D_RECT_ARB: + case GL_SAMPLER_2D_RECT_SHADOW_ARB: + case GL_SAMPLER_1D_ARRAY_EXT: + case GL_SAMPLER_2D_ARRAY_EXT: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + static void _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, @@ -1516,27 +1538,6 @@ _mesa_update_shader_textures_used(struct gl_program *prog) } -static GLboolean -is_sampler_type(GLenum type) -{ - switch (type) { - case GL_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_SAMPLER_1D_SHADOW: - case GL_SAMPLER_2D_SHADOW: - case GL_SAMPLER_2D_RECT_ARB: - case GL_SAMPLER_2D_RECT_SHADOW_ARB: - case GL_SAMPLER_1D_ARRAY_EXT: - case GL_SAMPLER_2D_ARRAY_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - /** * Check if the type given by userType is allowed to set a uniform of the * target type. Generally, equivalence is required, but setting Boolean @@ -1575,10 +1576,10 @@ compatible_types(GLenum userType, GLenum targetType) * \param program the program whose uniform to update * \param index the index of the program parameter for the uniform * \param offset additional parameter slot offset (for arrays) - * \param type the datatype of the uniform + * \param type the incoming datatype of 'values' * \param count the number of uniforms to set - * \param elems number of elements per uniform - * \param values the new values + * \param elems number of elements per uniform (1, 2, 3 or 4) + * \param values the new values, of datatype 'type' */ static void set_program_uniform(GLcontext *ctx, struct gl_program *program, @@ -1588,8 +1589,12 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, { struct gl_program_parameter *param = &program->Parameters->Parameters[index]; + const GLboolean isUniformBool = is_boolean_type(param->DataType); + const GLboolean areIntValues = is_integer_type(type); assert(offset >= 0); + assert(elems >= 1); + assert(elems <= 4); if (!compatible_types(type, param->DataType)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); @@ -1657,6 +1662,7 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, } } + /* loop over number of array elements */ for (k = 0; k < count; k++) { GLfloat *uniformVal; @@ -1665,8 +1671,11 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, break; } + /* uniformVal (the destination) is always float[4] */ uniformVal = program->Parameters->ParameterValues[index + offset + k]; - if (is_integer_type(type)) { + + if (areIntValues) { + /* convert user's ints to floats */ const GLint *iValues = ((const GLint *) values) + k * elems; for (i = 0; i < elems; i++) { uniformVal[i] = (GLfloat) iValues[i]; @@ -1680,7 +1689,7 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, } /* if the uniform is bool-valued, convert to 1.0 or 0.0 */ - if (is_boolean_type(param->DataType)) { + if (isUniformBool) { for (i = 0; i < elems; i++) { uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f; } |