From a8e5f06fe01732fbd643bc435dd3b8eaa602defe Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 9 Nov 2011 16:58:33 +0100 Subject: libX11 mesa pixman git update 9 nov 2011 --- mesalib/src/glsl/linker.cpp | 180 ++++---------------------------------------- 1 file changed, 15 insertions(+), 165 deletions(-) (limited to 'mesalib/src/glsl/linker.cpp') diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp index 915d5bbcf..0306b7a1b 100644 --- a/mesalib/src/glsl/linker.cpp +++ b/mesalib/src/glsl/linker.cpp @@ -191,8 +191,8 @@ linker_warning(gl_shader_program *prog, const char *fmt, ...) void -invalidate_variable_locations(gl_shader *sh, enum ir_variable_mode mode, - int generic_base) +link_invalidate_variable_locations(gl_shader *sh, enum ir_variable_mode mode, + int generic_base) { foreach_list(node, sh->ir) { ir_variable *const var = ((ir_instruction *) node)->as_variable(); @@ -1021,13 +1021,6 @@ link_intrastage_shaders(void *mem_ctx, return linked; } - -struct uniform_node { - exec_node link; - struct gl_uniform *u; - unsigned slots; -}; - /** * Update the sizes of linked shader uniform arrays to the maximum * array index used. @@ -1100,151 +1093,6 @@ update_array_sizes(struct gl_shader_program *prog) } } -static void -add_uniform(void *mem_ctx, exec_list *uniforms, struct hash_table *ht, - const char *name, const glsl_type *type, GLenum shader_type, - unsigned *next_shader_pos, unsigned *total_uniforms) -{ - if (type->is_record()) { - for (unsigned int i = 0; i < type->length; i++) { - const glsl_type *field_type = type->fields.structure[i].type; - char *field_name = ralloc_asprintf(mem_ctx, "%s.%s", name, - type->fields.structure[i].name); - - add_uniform(mem_ctx, uniforms, ht, field_name, field_type, - shader_type, next_shader_pos, total_uniforms); - } - } else { - uniform_node *n = (uniform_node *) hash_table_find(ht, name); - unsigned int vec4_slots; - const glsl_type *array_elem_type = NULL; - - if (type->is_array()) { - array_elem_type = type->fields.array; - /* Array of structures. */ - if (array_elem_type->is_record()) { - for (unsigned int i = 0; i < type->length; i++) { - char *elem_name = ralloc_asprintf(mem_ctx, "%s[%d]", name, i); - add_uniform(mem_ctx, uniforms, ht, elem_name, array_elem_type, - shader_type, next_shader_pos, total_uniforms); - } - return; - } - } - - /* Fix the storage size of samplers at 1 vec4 each. Be sure to pad out - * vectors to vec4 slots. - */ - if (type->is_array()) { - if (array_elem_type->is_sampler()) - vec4_slots = type->length; - else - vec4_slots = type->length * array_elem_type->matrix_columns; - } else if (type->is_sampler()) { - vec4_slots = 1; - } else { - vec4_slots = type->matrix_columns; - } - - if (n == NULL) { - n = (uniform_node *) calloc(1, sizeof(struct uniform_node)); - n->u = (gl_uniform *) calloc(1, sizeof(struct gl_uniform)); - n->slots = vec4_slots; - - n->u->Name = strdup(name); - n->u->Type = type; - n->u->VertPos = -1; - n->u->FragPos = -1; - n->u->GeomPos = -1; - (*total_uniforms)++; - - hash_table_insert(ht, n, name); - uniforms->push_tail(& n->link); - } - - switch (shader_type) { - case GL_VERTEX_SHADER: - n->u->VertPos = *next_shader_pos; - break; - case GL_FRAGMENT_SHADER: - n->u->FragPos = *next_shader_pos; - break; - case GL_GEOMETRY_SHADER: - n->u->GeomPos = *next_shader_pos; - break; - } - - (*next_shader_pos) += vec4_slots; - } -} - -void -assign_uniform_locations(struct gl_shader_program *prog) -{ - /* */ - exec_list uniforms; - unsigned total_uniforms = 0; - hash_table *ht = hash_table_ctor(32, hash_table_string_hash, - hash_table_string_compare); - void *mem_ctx = ralloc_context(NULL); - - for (unsigned i = 0; i < MESA_SHADER_TYPES; i++) { - if (prog->_LinkedShaders[i] == NULL) - continue; - - unsigned next_position = 0; - - foreach_list(node, prog->_LinkedShaders[i]->ir) { - ir_variable *const var = ((ir_instruction *) node)->as_variable(); - - if ((var == NULL) || (var->mode != ir_var_uniform)) - continue; - - if (strncmp(var->name, "gl_", 3) == 0) { - /* At the moment, we don't allocate uniform locations for - * builtin uniforms. It's permitted by spec, and we'll - * likely switch to doing that at some point, but not yet. - */ - continue; - } - - var->location = next_position; - add_uniform(mem_ctx, &uniforms, ht, var->name, var->type, - prog->_LinkedShaders[i]->Type, - &next_position, &total_uniforms); - } - } - - ralloc_free(mem_ctx); - - gl_uniform_list *ul = (gl_uniform_list *) - calloc(1, sizeof(gl_uniform_list)); - - ul->Size = total_uniforms; - ul->NumUniforms = total_uniforms; - ul->Uniforms = (gl_uniform *) calloc(total_uniforms, sizeof(gl_uniform)); - - unsigned idx = 0; - uniform_node *next; - for (uniform_node *node = (uniform_node *) uniforms.head - ; node->link.next != NULL - ; node = next) { - next = (uniform_node *) node->link.next; - - node->link.remove(); - memcpy(&ul->Uniforms[idx], node->u, sizeof(gl_uniform)); - idx++; - - free(node->u); - free(node); - } - - hash_table_dtor(ht); - - prog->Uniforms = ul; -} - - /** * Find a contiguous set of available bits in a bitmask. * @@ -1291,12 +1139,6 @@ find_available_slots(unsigned used_mask, unsigned needed_count) * \return * If locations are successfully assigned, true is returned. Otherwise an * error is emitted to the shader link log and false is returned. - * - * \bug - * Locations set via \c glBindFragDataLocation are not currently supported. - * Only locations assigned automatically by the linker, explicitly set by a - * layout qualifier, or explicitly set by a built-in variable (e.g., \c - * gl_FragColor) are supported for fragment shaders. */ bool assign_attribute_or_color_locations(gl_shader_program *prog, @@ -1320,7 +1162,8 @@ assign_attribute_or_color_locations(gl_shader_program *prog, * 1. Invalidate the location assignments for all vertex shader inputs. * * 2. Assign locations for inputs that have user-defined (via - * glBindVertexAttribLocation) locations. + * glBindVertexAttribLocation) locations and outputs that have + * user-defined locations (via glBindFragDataLocation). * * 3. Sort the attributes without assigned locations by number of slots * required in decreasing order. Fragmentation caused by attribute @@ -1337,7 +1180,7 @@ assign_attribute_or_color_locations(gl_shader_program *prog, (target_index == MESA_SHADER_VERTEX) ? ir_var_in : ir_var_out; - invalidate_variable_locations(sh, direction, generic_base); + link_invalidate_variable_locations(sh, direction, generic_base); /* Temporary storage for the set of attributes that need locations assigned. */ @@ -1381,6 +1224,13 @@ assign_attribute_or_color_locations(gl_shader_program *prog, assert(binding >= VERT_ATTRIB_GENERIC0); var->location = binding; } + } else if (target_index == MESA_SHADER_FRAGMENT) { + unsigned binding; + + if (prog->FragDataBindings->get(binding, var->name)) { + assert(binding >= FRAG_RESULT_DATA0); + var->location = binding; + } } /* If the variable is not a built-in and has a location statically @@ -1539,8 +1389,8 @@ assign_varying_locations(struct gl_context *ctx, * not being inputs. This lets the optimizer eliminate them. */ - invalidate_variable_locations(producer, ir_var_out, VERT_RESULT_VAR0); - invalidate_variable_locations(consumer, ir_var_in, FRAG_ATTRIB_VAR0); + link_invalidate_variable_locations(producer, ir_var_out, VERT_RESULT_VAR0); + link_invalidate_variable_locations(consumer, ir_var_in, FRAG_ATTRIB_VAR0); foreach_list(node, producer->ir) { ir_variable *const output_var = ((ir_instruction *) node)->as_variable(); @@ -1858,7 +1708,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog) } update_array_sizes(prog); - assign_uniform_locations(prog); + link_assign_uniform_locations(prog); /* OpenGL ES requires that a vertex shader and a fragment shader both be * present in a linked program. By checking for use of shading language -- cgit v1.2.3