/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include "mem.h" #include "avassert.h" static pthread_mutex_t glslc_mutex = PTHREAD_MUTEX_INITIALIZER; static int glslc_refcount = 0; static const glslang_resource_t glslc_resource_limits = { .max_lights = 32, .max_clip_planes = 6, .max_texture_units = 32, .max_texture_coords = 32, .max_vertex_attribs = 64, .max_vertex_uniform_components = 4096, .max_varying_floats = 64, .max_vertex_texture_image_units = 32, .max_combined_texture_image_units = 80, .max_texture_image_units = 32, .max_fragment_uniform_components = 4096, .max_draw_buffers = 32, .max_vertex_uniform_vectors = 128, .max_varying_vectors = 8, .max_fragment_uniform_vectors = 16, .max_vertex_output_vectors = 16, .max_fragment_input_vectors = 15, .min_program_texel_offset = -8, .max_program_texel_offset = 7, .max_clip_distances = 8, .max_compute_work_group_count_x = 65535, .max_compute_work_group_count_y = 65535, .max_compute_work_group_count_z = 65535, .max_compute_work_group_size_x = 1024, .max_compute_work_group_size_y = 1024, .max_compute_work_group_size_z = 64, .max_compute_uniform_components = 1024, .max_compute_texture_image_units = 16, .max_compute_image_uniforms = 8, .max_compute_atomic_counters = 8, .max_compute_atomic_counter_buffers = 1, .max_varying_components = 60, .max_vertex_output_components = 64, .max_geometry_input_components = 64, .max_geometry_output_components = 128, .max_fragment_input_components = 128, .max_image_units = 8, .max_combined_image_units_and_fragment_outputs = 8, .max_combined_shader_output_resources = 8, .max_image_samples = 0, .max_vertex_image_uniforms = 0, .max_tess_control_image_uniforms = 0, .max_tess_evaluation_image_uniforms = 0, .max_geometry_image_uniforms = 0, .max_fragment_image_uniforms = 8, .max_combined_image_uniforms = 8, .max_geometry_texture_image_units = 16, .max_geometry_output_vertices = 256, .max_geometry_total_output_components = 1024, .max_geometry_uniform_components = 1024, .max_geometry_varying_components = 64, .max_tess_control_input_components = 128, .max_tess_control_output_components = 128, .max_tess_control_texture_image_units = 16, .max_tess_control_uniform_components = 1024, .max_tess_control_total_output_components = 4096, .max_tess_evaluation_input_components = 128, .max_tess_evaluation_output_components = 128, .max_tess_evaluation_texture_image_units = 16, .max_tess_evaluation_uniform_components = 1024, .max_tess_patch_components = 120, .max_patch_vertices = 32, .max_tess_gen_level = 64, .max_viewports = 16, .max_vertex_atomic_counters = 0, .max_tess_control_atomic_counters = 0, .max_tess_evaluation_atomic_counters = 0, .max_geometry_atomic_counters = 0, .max_fragment_atomic_counters = 8, .max_combined_atomic_counters = 8, .max_atomic_counter_bindings = 1, .max_vertex_atomic_counter_buffers = 0, .max_tess_control_atomic_counter_buffers = 0, .max_tess_evaluation_atomic_counter_buffers = 0, .max_geometry_atomic_counter_buffers = 0, .max_fragment_atomic_counter_buffers = 1, .max_combined_atomic_counter_buffers = 1, .max_atomic_counter_buffer_size = 16384, .max_transform_feedback_buffers = 4, .max_transform_feedback_interleaved_components = 64, .max_cull_distances = 8, .max_combined_clip_and_cull_distances = 8, .max_samples = 4, .max_mesh_output_vertices_nv = 256, .max_mesh_output_primitives_nv = 512, .max_mesh_work_group_size_x_nv = 32, .max_mesh_work_group_size_y_nv = 1, .max_mesh_work_group_size_z_nv = 1, .max_task_work_group_size_x_nv = 32, .max_task_work_group_size_y_nv = 1, .max_task_work_group_size_z_nv = 1, .max_mesh_view_count_nv = 4, .maxDualSourceDrawBuffersEXT = 1, .limits = { .non_inductive_for_loops = 1, .while_loops = 1, .do_while_loops = 1, .general_uniform_indexing = 1, .general_attribute_matrix_vector_indexing = 1, .general_varying_indexing = 1, .general_sampler_indexing = 1, .general_variable_indexing = 1, .general_constant_matrix_vector_indexing = 1, } }; static int glslc_shader_compile(FFVkSPIRVCompiler *ctx, void *avctx, FFVkSPIRVShader *shd, uint8_t **data, size_t *size, const char *entrypoint, void **opaque) { const char *messages; glslang_shader_t *glslc_shader; glslang_program_t *glslc_program; static const glslang_stage_t glslc_stage[] = { [VK_SHADER_STAGE_VERTEX_BIT] = GLSLANG_STAGE_VERTEX, [VK_SHADER_STAGE_FRAGMENT_BIT] = GLSLANG_STAGE_FRAGMENT, [VK_SHADER_STAGE_COMPUTE_BIT] = GLSLANG_STAGE_COMPUTE, }; const glslang_input_t glslc_input = { .language = GLSLANG_SOURCE_GLSL, .stage = glslc_stage[shd->shader.stage], .client = GLSLANG_CLIENT_VULKAN, /* GLSLANG_TARGET_VULKAN_1_2 before 11.6 resulted in targeting 1.0 */ #if (((GLSLANG_VERSION_MAJOR) > 11) || ((GLSLANG_VERSION_MAJOR) == 11 && \ (((GLSLANG_VERSION_MINOR) > 6) || ((GLSLANG_VERSION_MINOR) == 6 && \ ((GLSLANG_VERSION_PATCH) > 0))))) .client_version = GLSLANG_TARGET_VULKAN_1_2, .target_language_version = GLSLANG_TARGET_SPV_1_5, #else .client_version = GLSLANG_TARGET_VULKAN_1_1, .target_language_version = GLSLANG_TARGET_SPV_1_3, #endif .target_language = GLSLANG_TARGET_SPV, .code = shd->src.str, .default_version = 460, .default_profile = GLSLANG_NO_PROFILE, .force_default_version_and_profile = false, .forward_compatible = false, .messages = GLSLANG_MSG_DEFAULT_BIT, .resource = &glslc_resource_limits, }; av_assert0(glslc_refcount); if (!(glslc_shader = glslang_shader_create(&glslc_input))) return AVERROR(ENOMEM); if (!glslang_shader_preprocess(glslc_shader, &glslc_input)) { ff_vk_print_shader(avctx, shd, AV_LOG_WARNING); av_log(avctx, AV_LOG_ERROR, "Unable to preprocess shader: %s (%s)!\n", glslang_shader_get_info_log(glslc_shader), glslang_shader_get_info_debug_log(glslc_shader)); glslang_shader_delete(glslc_shader); return AVERROR(EINVAL); } if (!glslang_shader_parse(glslc_shader, &glslc_input)) { ff_vk_print_shader(avctx, shd, AV_LOG_WARNING); av_log(avctx, AV_LOG_ERROR, "Unable to parse shader: %s (%s)!\n", glslang_shader_get_info_log(glslc_shader), glslang_shader_get_info_debug_log(glslc_shader)); glslang_shader_delete(glslc_shader); return AVERROR(EINVAL); } if (!(glslc_program = glslang_program_create())) { glslang_shader_delete(glslc_shader); return AVERROR(EINVAL); } glslang_program_add_shader(glslc_program, glslc_shader); if (!glslang_program_link(glslc_program, GLSLANG_MSG_SPV_RULES_BIT | GLSLANG_MSG_VULKAN_RULES_BIT)) { ff_vk_print_shader(avctx, shd, AV_LOG_WARNING); av_log(avctx, AV_LOG_ERROR, "Unable to link shader: %s (%s)!\n", glslang_program_get_info_log(glslc_program), glslang_program_get_info_debug_log(glslc_program)); glslang_program_delete(glslc_program); glslang_shader_delete(glslc_shader); return AVERROR(EINVAL); } glslang_program_SPIRV_generate(glslc_program, glslc_input.stage); messages = glslang_program_SPIRV_get_messages(glslc_program); if (messages) { ff_vk_print_shader(avctx, shd, AV_LOG_WARNING); av_log(avctx, AV_LOG_WARNING, "%s\n", messages); } else { ff_vk_print_shader(avctx, shd, AV_LOG_VERBOSE); } glslang_shader_delete(glslc_shader); *size = glslang_program_SPIRV_get_size(glslc_program) * sizeof(unsigned int); *data = (void *)glslang_program_SPIRV_get_ptr(glslc_program); *opaque = glslc_program; return 0; } static void glslc_shader_free(FFVkSPIRVCompiler *ctx, void **opaque) { if (!opaque || !*opaque) return; av_assert0(glslc_refcount); glslang_program_delete(*opaque); *opaque = NULL; } static void glslc_uninit(FFVkSPIRVCompiler **ctx) { if (!ctx || !*ctx) return; pthread_mutex_lock(&glslc_mutex); if (glslc_refcount && (--glslc_refcount == 0)) glslang_finalize_process(); pthread_mutex_unlock(&glslc_mutex); av_freep(ctx); } static FFVkSPIRVCompiler *ff_vk_glslang_init(void) { FFVkSPIRVCompiler *ret = av_mallocz(sizeof(*ret)); if (!ret) return NULL; ret->compile_shader = glslc_shader_compile; ret->free_shader = glslc_shader_free; ret->uninit = glslc_uninit; pthread_mutex_lock(&glslc_mutex); if (!glslc_refcount++) { if (!glslang_initialize_process()) { av_freep(&ret); glslc_refcount--; } } pthread_mutex_unlock(&glslc_mutex); return ret; }