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ffmpeg/libavutil/vulkan_glslang.c

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/*
* 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 <pthread.h>
#include <glslang/build_info.h>
#include <glslang/Include/glslang_c_interface.h>
#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;
}
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