glsl2: Use Mesa's gl_shader_program instead of our own struct glsl_program.

This avoids more allocation and shuffling of data around.

src/glsl/linker.cpp

@@ -116,7 +116,7 @@ private:
 
 
 void
-linker_error_printf(glsl_program *prog, const char *fmt, ...)
+linker_error_printf(gl_shader_program *prog, const char *fmt, ...)
 {
    va_list ap;
 
@@ -186,7 +186,7 @@ count_attribute_slots(const glsl_type *t)
  * \param shader  Vertex shader executable to be verified
  */
 bool
-validate_vertex_shader_executable(struct glsl_program *prog,
+validate_vertex_shader_executable(struct gl_shader_program *prog,
 				  struct gl_shader *shader)
 {
    if (shader == NULL)
@@ -215,7 +215,7 @@ validate_vertex_shader_executable(struct glsl_program *prog,
  * \param shader  Fragment shader executable to be verified
  */
 bool
-validate_fragment_shader_executable(struct glsl_program *prog,
+validate_fragment_shader_executable(struct gl_shader_program *prog,
 				    struct gl_shader *shader)
 {
    if (shader == NULL)
@@ -252,7 +252,7 @@ validate_fragment_shader_executable(struct glsl_program *prog,
  * Perform validation of uniforms used across multiple shader stages
  */
 bool
-cross_validate_uniforms(struct glsl_program *prog)
+cross_validate_uniforms(struct gl_shader_program *prog)
 {
    /* Examine all of the uniforms in all of the shaders and cross validate
     * them.
@@ -308,7 +308,7 @@ cross_validate_uniforms(struct glsl_program *prog)
  * Validate that outputs from one stage match inputs of another
  */
 bool
-cross_validate_outputs_to_inputs(struct glsl_program *prog,
+cross_validate_outputs_to_inputs(struct gl_shader_program *prog,
 				 gl_shader *producer, gl_shader *consumer)
 {
    glsl_symbol_table parameters;
@@ -412,7 +412,7 @@ struct uniform_node {
 };
 
 void
-assign_uniform_locations(struct glsl_program *prog)
+assign_uniform_locations(struct gl_shader_program *prog)
 {
    /* */
    exec_list uniforms;
@@ -533,7 +533,7 @@ find_available_slots(unsigned used_mask, unsigned needed_count)
 
 
 bool
-assign_attribute_locations(glsl_program *prog, unsigned max_attribute_index)
+assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index)
 {
    /* Mark invalid attribute locations as being used.
     */
@@ -767,7 +767,7 @@ assign_varying_locations(gl_shader *producer, gl_shader *consumer)
 
 
 void
-link_shaders(struct glsl_program *prog)
+link_shaders(struct gl_shader_program *prog)
 {
    prog->LinkStatus = false;
    prog->Validated = false;

src/glsl/main.cpp

@@ -206,9 +206,9 @@ main(int argc, char **argv)
    if (argc <= optind)
       usage_fail(argv[0]);
 
-   struct glsl_program *whole_program;
+   struct gl_shader_program *whole_program;
 
-   whole_program = talloc_zero (NULL, struct glsl_program);
+   whole_program = talloc_zero (NULL, struct gl_shader_program);
    assert(whole_program != NULL);
 
    for (/* empty */; argc > optind; optind++) {

src/glsl/program.h

@@ -29,37 +29,5 @@ extern "C" {
 #include "shader/prog_uniform.h"
 }
 
-/**
- * Based on gl_shader_program in Mesa's mtypes.h.
- */
-struct glsl_program {
-   GLenum Type;  /**< Always GL_SHADER_PROGRAM (internal token) */
-   GLuint Name;  /**< aka handle or ID */
-   GLint RefCount;  /**< Reference count */
-   GLboolean DeletePending;
-
-   GLuint NumShaders;          /**< number of attached shaders */
-   struct gl_shader **Shaders; /**< List of attached the shaders */
-
-   /**
-    * Per-stage shaders resulting from the first stage of linking.
-    */
-   /*@{*/
-   unsigned _NumLinkedShaders;
-   struct gl_shader **_LinkedShaders;
-   /*@}*/
-
-   /** User-defined attribute bindings (glBindAttribLocation) */
-   struct gl_program_parameter_list *Attributes;
-
-   /* post-link info: */
-   struct gl_uniform_list *Uniforms;
-   struct gl_program_parameter_list *Varying;
-   GLboolean LinkStatus;   /**< GL_LINK_STATUS */
-   GLboolean Validated;
-   GLboolean _Used;        /**< Ever used for drawing? */
-   GLchar *InfoLog;
-};
-
 extern void
-link_shaders(struct glsl_program *prog);
+link_shaders(struct gl_shader_program *prog);

src/mesa/main/mtypes.h

@@ -2005,6 +2005,9 @@ struct gl_shader_program
    GLboolean Validated;
    GLboolean _Used;        /**< Ever used for drawing? */
    GLchar *InfoLog;
+
+   GLuint _NumLinkedShaders;
+   struct gl_shader **_LinkedShaders;
 };   
 
 

src/mesa/shader/ir_to_mesa.cpp

@@ -1709,48 +1709,49 @@ _mesa_glsl_compile_shader(GLcontext *ctx, struct gl_shader *shader)
 void
 _mesa_glsl_link_shader(GLcontext *ctx, struct gl_shader_program *prog)
 {
-   struct glsl_program *whole_program;
    unsigned int i;
+
    _mesa_clear_shader_program_data(ctx, prog);
 
-   whole_program = talloc_zero(NULL, struct glsl_program);
-   whole_program->LinkStatus = GL_TRUE;
-   whole_program->NumShaders = prog->NumShaders;
-   whole_program->Shaders = talloc_array(whole_program, struct gl_shader *,
-					 prog->NumShaders);
+   prog->LinkStatus = GL_TRUE;
 
    for (i = 0; i < prog->NumShaders; i++) {
-      whole_program->Shaders[i] = prog->Shaders[i];
-      if (!whole_program->Shaders[i]->CompileStatus) {
-	 whole_program->InfoLog =
-	    talloc_asprintf_append(whole_program->InfoLog,
+      if (!prog->Shaders[i]->CompileStatus) {
+	 prog->InfoLog =
+	    talloc_asprintf_append(prog->InfoLog,
 				   "linking with uncompiled shader");
-	 whole_program->LinkStatus = GL_FALSE;
+	 prog->LinkStatus = GL_FALSE;
       }
    }
 
-   prog->Uniforms = _mesa_new_uniform_list();
    prog->Varying = _mesa_new_parameter_list();
    _mesa_reference_vertprog(ctx, &prog->VertexProgram, NULL);
    _mesa_reference_fragprog(ctx, &prog->FragmentProgram, NULL);
 
-   if (whole_program->LinkStatus)
-      link_shaders(whole_program);
+   if (prog->LinkStatus) {
+      link_shaders(prog);
 
-   prog->LinkStatus = whole_program->LinkStatus;
+      /* We don't use the linker's uniforms list, and cook up our own at
+       * generate time.
+       */
+      free(prog->Uniforms);
+      prog->Uniforms = _mesa_new_uniform_list();
+   }
+
+   prog->LinkStatus = prog->LinkStatus;
 
    /* FINISHME: This should use the linker-generated code */
    if (prog->LinkStatus) {
       for (i = 0; i < prog->NumShaders; i++) {
 	 struct gl_program *linked_prog;
 
-	 linked_prog = get_mesa_program(ctx, whole_program,
-					whole_program->Shaders[i]);
+	 linked_prog = get_mesa_program(ctx, prog,
+					prog->Shaders[i]);
 	 count_resources(linked_prog);
 
 	 link_uniforms_to_shared_uniform_list(prog->Uniforms, linked_prog);
 
-	 switch (whole_program->Shaders[i]->Type) {
+	 switch (prog->Shaders[i]->Type) {
 	 case GL_VERTEX_SHADER:
 	    _mesa_reference_vertprog(ctx, &prog->VertexProgram,
 				     (struct gl_vertex_program *)linked_prog);
@@ -1766,8 +1767,6 @@ _mesa_glsl_link_shader(GLcontext *ctx, struct gl_shader_program *prog)
 	 }
       }
    }
-
-   talloc_free(whole_program);
 }
 
 } /* extern "C" */

src/mesa/shader/shader_api.c

@@ -53,7 +53,7 @@ static struct gl_shader_program *
 _mesa_new_shader_program(GLcontext *ctx, GLuint name)
 {
    struct gl_shader_program *shProg;
-   shProg = CALLOC_STRUCT(gl_shader_program);
+   shProg = talloc_zero(NULL, struct gl_shader_program);
    if (shProg) {
       shProg->Type = GL_SHADER_PROGRAM_MESA;
       shProg->Name = name;
@@ -117,7 +117,7 @@ _mesa_free_shader_program_data(GLcontext *ctx,
    }
 
    if (shProg->InfoLog) {
-      free(shProg->InfoLog);
+      talloc_free(shProg->InfoLog);
       shProg->InfoLog = NULL;
    }
 
@@ -139,7 +139,7 @@ _mesa_free_shader_program(GLcontext *ctx, struct gl_shader_program *shProg)
 {
    _mesa_free_shader_program_data(ctx, shProg);
 
-   free(shProg);
+   talloc_free(shProg);
 }