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/*
* Copyright (c) 2015-2025 The Khronos Group Inc.
* Copyright (c) 2015-2025 Valve Corporation
* Copyright (c) 2015-2025 LunarG, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <spirv-tools/libspirv.hpp>
#include <glslang/Public/ShaderLang.h>
#include "render.h"
// This include is light and easier to have here a single place for all tests to grab
#include "shader_templates.h"
class VkRenderFramework;
// What is the incoming source to be turned into VkShaderModuleCreateInfo::pCode
typedef enum {
SPV_SOURCE_GLSL,
SPV_SOURCE_ASM,
// TRY == Won't try in contructor as need to be called as function that can return the VkResult
SPV_SOURCE_GLSL_TRY,
SPV_SOURCE_ASM_TRY,
} SpvSourceType;
bool GLSLtoSPV(const VkPhysicalDeviceLimits &device_limits, const VkShaderStageFlagBits shader_type, const char *p_shader,
std::vector<uint32_t> &spv, const spv_target_env spv_env = SPV_ENV_VULKAN_1_0);
bool ASMtoSPV(const spv_target_env target_env, const uint32_t options, const char *p_asm, std::vector<uint32_t> &spv);
// VkShaderObj is really just the Shader Module, but we named before VK_EXT_shader_object
// TODO - move all of VkShaderObj to vkt::ShaderModule
class VkShaderObj : public vkt::ShaderModule {
public:
VkShaderObj() = default;
VkShaderObj(VkShaderObj &&rhs) noexcept = default;
VkShaderObj &operator=(VkShaderObj &&rhs) noexcept = default;
// optional arguments listed order of most likely to be changed manually by a test
VkShaderObj(vkt::Device &device, const char *source, VkShaderStageFlagBits stage, const spv_target_env env = SPV_ENV_VULKAN_1_0,
SpvSourceType source_type = SPV_SOURCE_GLSL, const VkSpecializationInfo *spec_info = nullptr,
char const *entry_point = "main", const void *pNext = nullptr);
// DEPRECATED
VkShaderObj(VkRenderFramework *framework, const char *source, VkShaderStageFlagBits stage,
const spv_target_env env = SPV_ENV_VULKAN_1_0, SpvSourceType source_type = SPV_SOURCE_GLSL,
const VkSpecializationInfo *spec_info = nullptr, char const *entry_point = "main", const void *pNext = nullptr);
VkPipelineShaderStageCreateInfo const &GetStageCreateInfo() const;
bool InitFromGLSL(const void *pNext = nullptr);
VkResult InitFromGLSLTry(const vkt::Device *custom_device = nullptr);
bool InitFromASM();
VkResult InitFromASMTry();
// These functions return a pointer to a newly created _and initialized_ VkShaderObj if initialization was successful.
// Otherwise, {} is returned.
static VkShaderObj CreateFromGLSL(VkRenderFramework *framework, const char *source, VkShaderStageFlagBits stage,
const spv_target_env = SPV_ENV_VULKAN_1_0, const VkSpecializationInfo *spec_info = nullptr,
const char *entry_point = "main");
static VkShaderObj CreateFromASM(VkRenderFramework *framework, const char *source, VkShaderStageFlagBits stage,
const spv_target_env spv_env = SPV_ENV_VULKAN_1_0,
const VkSpecializationInfo *spec_info = nullptr, const char *entry_point = "main");
private:
vkt::Device *m_device = nullptr;
VkPipelineShaderStageCreateInfo m_stage_info;
const char *m_source;
spv_target_env m_spv_env;
};
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