diff options
Diffstat (limited to 'src/compiler/glsl/link_uniform_blocks.cpp')
| -rw-r--r-- | src/compiler/glsl/link_uniform_blocks.cpp | 204 |
1 files changed, 115 insertions, 89 deletions
diff --git a/src/compiler/glsl/link_uniform_blocks.cpp b/src/compiler/glsl/link_uniform_blocks.cpp index c8fa181a15d..586363d4f12 100644 --- a/src/compiler/glsl/link_uniform_blocks.cpp +++ b/src/compiler/glsl/link_uniform_blocks.cpp @@ -291,13 +291,105 @@ resize_block_array(const glsl_type *type, } } -unsigned +static void +create_buffer_blocks(void *mem_ctx, struct gl_context *ctx, + struct gl_shader_program *prog, + struct gl_uniform_block **out_blks, unsigned num_blocks, + struct hash_table *block_hash, unsigned num_variables, + bool create_ubo_blocks) +{ + if (num_blocks == 0) { + assert(num_variables == 0); + return; + } + + assert(num_variables != 0); + + /* Allocate storage to hold all of the information related to uniform + * blocks that can be queried through the API. + */ + struct gl_uniform_block *blocks = ralloc_array(mem_ctx, gl_uniform_block, num_blocks); + gl_uniform_buffer_variable *variables = + ralloc_array(blocks, gl_uniform_buffer_variable, num_variables); + + /* Add each variable from each uniform block to the API tracking + * structures. + */ + ubo_visitor parcel(blocks, variables, num_variables); + + STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_STD140) + == unsigned(ubo_packing_std140)); + STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_SHARED) + == unsigned(ubo_packing_shared)); + STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_PACKED) + == unsigned(ubo_packing_packed)); + STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_STD430) + == unsigned(ubo_packing_std430)); + + unsigned i = 0; + struct hash_entry *entry; + hash_table_foreach (block_hash, entry) { + const struct link_uniform_block_active *const b = + (const struct link_uniform_block_active *) entry->data; + const glsl_type *block_type = b->type; + + if ((create_ubo_blocks && !b->is_shader_storage) || + (!create_ubo_blocks && b->is_shader_storage)) { + + if (b->array != NULL) { + unsigned binding_offset = 0; + char *name = ralloc_strdup(NULL, + block_type->without_array()->name); + size_t name_length = strlen(name); + + assert(b->has_instance_name); + process_block_array(b->array, &name, name_length, blocks, &parcel, + variables, b, &i, &binding_offset, ctx, prog); + ralloc_free(name); + } else { + blocks[i].Name = ralloc_strdup(blocks, block_type->name); + blocks[i].Uniforms = &variables[parcel.index]; + blocks[i].Binding = (b->has_binding) ? b->binding : 0; + blocks[i].UniformBufferSize = 0; + blocks[i]._Packing = + gl_uniform_block_packing(block_type->interface_packing); + + parcel.process(block_type, + b->has_instance_name ? block_type->name : ""); + + blocks[i].UniformBufferSize = parcel.buffer_size; + + /* Check SSBO size is lower than maximum supported size for SSBO + */ + if (b->is_shader_storage && + parcel.buffer_size > ctx->Const.MaxShaderStorageBlockSize) { + linker_error(prog, "shader storage block `%s' has size %d, " + "which is larger than than the maximum allowed (%d)", + block_type->name, parcel.buffer_size, + ctx->Const.MaxShaderStorageBlockSize); + } + blocks[i].NumUniforms = (unsigned)(ptrdiff_t) + (&variables[parcel.index] - blocks[i].Uniforms); + i++; + } + } + } + + *out_blks = blocks; + + assert(parcel.index == num_variables); +} + +void link_uniform_blocks(void *mem_ctx, struct gl_context *ctx, struct gl_shader_program *prog, struct gl_shader **shader_list, unsigned num_shaders, - struct gl_uniform_block **blocks_ret) + struct gl_uniform_block **ubo_blocks, + unsigned *num_ubo_blocks, + struct gl_uniform_block **ssbo_blocks, + unsigned *num_ssbo_blocks) { /* This hash table will track all of the uniform blocks that have been * encountered. Since blocks with the same block-name must be the same, @@ -310,7 +402,7 @@ link_uniform_blocks(void *mem_ctx, if (block_hash == NULL) { _mesa_error_no_memory(__func__); linker_error(prog, "out of memory\n"); - return 0; + return; } /* Determine which uniform blocks are active. @@ -323,8 +415,8 @@ link_uniform_blocks(void *mem_ctx, /* Count the number of active uniform blocks. Count the total number of * active slots in those uniform blocks. */ - unsigned num_blocks = 0; - unsigned num_variables = 0; + unsigned num_ubo_variables = 0; + unsigned num_ssbo_variables = 0; count_block_size block_size; struct hash_entry *entry; @@ -346,97 +438,31 @@ link_uniform_blocks(void *mem_ctx, if (b->array != NULL) { unsigned aoa_size = b->type->arrays_of_arrays_size(); - num_blocks += aoa_size; - num_variables += aoa_size * block_size.num_active_uniforms; - } else { - num_blocks++; - num_variables += block_size.num_active_uniforms; - } - - } - - if (num_blocks == 0) { - assert(num_variables == 0); - _mesa_hash_table_destroy(block_hash, NULL); - return 0; - } - - assert(num_variables != 0); - - /* Allocate storage to hold all of the informatation related to uniform - * blocks that can be queried through the API. - */ - gl_uniform_block *blocks = - ralloc_array(mem_ctx, gl_uniform_block, num_blocks); - gl_uniform_buffer_variable *variables = - ralloc_array(blocks, gl_uniform_buffer_variable, num_variables); - - /* Add each variable from each uniform block to the API tracking - * structures. - */ - unsigned i = 0; - ubo_visitor parcel(blocks, variables, num_variables); - - STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_STD140) - == unsigned(ubo_packing_std140)); - STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_SHARED) - == unsigned(ubo_packing_shared)); - STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_PACKED) - == unsigned(ubo_packing_packed)); - STATIC_ASSERT(unsigned(GLSL_INTERFACE_PACKING_STD430) - == unsigned(ubo_packing_std430)); - - hash_table_foreach (block_hash, entry) { - const struct link_uniform_block_active *const b = - (const struct link_uniform_block_active *) entry->data; - const glsl_type *block_type = b->type; - - if (b->array != NULL) { - unsigned binding_offset = 0; - char *name = ralloc_strdup(NULL, block_type->without_array()->name); - size_t name_length = strlen(name); - - assert(b->has_instance_name); - process_block_array(b->array, &name, name_length, blocks, &parcel, - variables, b, &i, &binding_offset, ctx, prog); - ralloc_free(name); + if (b->is_shader_storage) { + *num_ssbo_blocks += aoa_size; + num_ssbo_variables += aoa_size * block_size.num_active_uniforms; + } else { + *num_ubo_blocks += aoa_size; + num_ubo_variables += aoa_size * block_size.num_active_uniforms; + } } else { - blocks[i].Name = ralloc_strdup(blocks, block_type->name); - blocks[i].Uniforms = &variables[parcel.index]; - blocks[i].Binding = (b->has_binding) ? b->binding : 0; - blocks[i].UniformBufferSize = 0; - blocks[i]._Packing = - gl_uniform_block_packing(block_type->interface_packing); - - parcel.process(block_type, - b->has_instance_name ? block_type->name : ""); - - blocks[i].UniformBufferSize = parcel.buffer_size; - - /* Check SSBO size is lower than maximum supported size for SSBO */ - if (b->is_shader_storage && - parcel.buffer_size > ctx->Const.MaxShaderStorageBlockSize) { - linker_error(prog, "shader storage block `%s' has size %d, " - "which is larger than than the maximum allowed (%d)", - block_type->name, - parcel.buffer_size, - ctx->Const.MaxShaderStorageBlockSize); + if (b->is_shader_storage) { + (*num_ssbo_blocks)++; + num_ssbo_variables += block_size.num_active_uniforms; + } else { + (*num_ubo_blocks)++; + num_ubo_variables += block_size.num_active_uniforms; } - blocks[i].NumUniforms = - (unsigned)(ptrdiff_t)(&variables[parcel.index] - blocks[i].Uniforms); - - blocks[i].IsShaderStorage = b->is_shader_storage; - - i++; } + } - assert(parcel.index == num_variables); + create_buffer_blocks(mem_ctx, ctx, prog, ubo_blocks, *num_ubo_blocks, + block_hash, num_ubo_variables, true); + create_buffer_blocks(mem_ctx, ctx, prog, ssbo_blocks, *num_ssbo_blocks, + block_hash, num_ssbo_variables, false); _mesa_hash_table_destroy(block_hash, NULL); - - *blocks_ret = blocks; - return num_blocks; } bool |