Esempi in C++ (Cpp) per _mesa_get_uniform_name

Esempio n. 1

File: uniforms.c Progetto: austriancoder/mesa-1

void GLAPIENTRY
_mesa_GetActiveUniformName(GLuint program, GLuint uniformIndex,
			   GLsizei bufSize, GLsizei *length,
			   GLchar *uniformName)
{
   GET_CURRENT_CONTEXT(ctx);
   struct gl_shader_program *shProg;

   if (!ctx->Extensions.ARB_uniform_buffer_object) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetActiveUniformBlockiv");
      return;
   }

   if (bufSize < 0) {
      _mesa_error(ctx, GL_INVALID_VALUE,
		  "glGetActiveUniformName(bufSize %d < 0)",
		  bufSize);
      return;
   }

   shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniformName");

   if (!shProg)
      return;

   if (uniformIndex >= shProg->NumUserUniformStorage) {
      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)");
      return;
   }

   if (uniformName) {
      _mesa_get_uniform_name(& shProg->UniformStorage[uniformIndex],
                             bufSize, length, uniformName);
   }
}

Esempio n. 2

File: uniform_query.cpp Progetto: freedesktop-unofficial-mirror/openchrome__mesa-openchrome

extern "C" void GLAPIENTRY
_mesa_GetActiveUniform(GLuint program, GLuint index,
                       GLsizei maxLength, GLsizei *length, GLint *size,
                       GLenum *type, GLcharARB *nameOut)
{
   GET_CURRENT_CONTEXT(ctx);
   struct gl_shader_program *shProg =
      _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform");

   if (!shProg)
      return;

   if (index >= shProg->NumUserUniformStorage) {
      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)");
      return;
   }

   const struct gl_uniform_storage *const uni = &shProg->UniformStorage[index];

   if (nameOut) {
      _mesa_get_uniform_name(uni, maxLength, length, nameOut);
   }

   if (size) {
      /* array_elements is zero for non-arrays, but the API requires that 1 be
       * returned.
       */
      *size = MAX2(1, uni->array_elements);
   }

   if (type) {
      *type = uni->type->gl_type;
   }
}