return pos;
}
-/**
- * Add a sampler to the parameter list.
- * \param name uniform's name
- * \param datatype GL_SAMPLER_2D, GL_SAMPLER_2D_RECT_ARB, etc.
- * \param index the sampler number (as seen in TEX instructions)
- * \return sampler index (starting at zero) or -1 if error
- */
-GLint
-_mesa_add_sampler(struct gl_program_parameter_list *paramList,
- const char *name, GLenum datatype, int array_length)
-{
- GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
- if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_SAMPLER) {
- ASSERT(paramList->Parameters[i].Size == 4 * array_length);
- ASSERT(paramList->Parameters[i].DataType == datatype);
- /* already in list */
- return (GLint) paramList->ParameterValues[i][0];
- }
- else {
- GLuint i;
- /* One integer texture unit number goes in each parameter location. */
- const GLint size = 4 * array_length;
- GLfloat value[4];
- GLint numSamplers = 0;
- for (i = 0; i < paramList->NumParameters; i++) {
- if (paramList->Parameters[i].Type == PROGRAM_SAMPLER)
- numSamplers++;
- }
- value[0] = (GLfloat) numSamplers;
- value[1] = value[2] = value[3] = 0.0F;
- (void) _mesa_add_parameter(paramList, PROGRAM_SAMPLER, name,
- size, datatype, value, NULL, 0x0);
- return numSamplers;
- }
-}
-
-
/**
* Add parameter representing a varying variable.
*/
const GLfloat values[4], GLuint size,
GLuint *swizzleOut);
-extern GLint
-_mesa_add_sampler(struct gl_program_parameter_list *paramList,
- const char *name, GLenum datatype, int array_length);
-
extern GLint
_mesa_add_varying(struct gl_program_parameter_list *paramList,
const char *name, GLuint size, GLenum datatype,