mirror of
https://github.com/encounter/dawn-cmake.git
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fffe6dfa16
This directory used to contain both the state tracking code for the backends, and the common utilities that could be used both by the backends and the rest of the code. Things are now: - src/common is utility code for the whole repo - src/backend contains libNXT's code - src/utils is utility code that we don't want in libNXT This commit also changes all includes to use global paths from src/ bacause it had to touch a bunch of #include statements anyway.
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
// Copyright 2017 The NXT Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "utils/NXTHelpers.h"
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#include <shaderc/shaderc.hpp>
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#include <cstring>
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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namespace utils {
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void FillShaderModuleBuilder(const nxt::ShaderModuleBuilder& builder, nxt::ShaderStage stage, const char* source) {
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shaderc::Compiler compiler;
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shaderc::CompileOptions options;
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shaderc_shader_kind kind;
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switch (stage) {
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case nxt::ShaderStage::Vertex:
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kind = shaderc_glsl_vertex_shader;
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break;
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case nxt::ShaderStage::Fragment:
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kind = shaderc_glsl_fragment_shader;
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break;
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case nxt::ShaderStage::Compute:
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kind = shaderc_glsl_compute_shader;
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break;
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}
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auto result = compiler.CompileGlslToSpv(source, strlen(source), kind, "myshader?", options);
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if (result.GetCompilationStatus() != shaderc_compilation_status_success) {
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std::cerr << result.GetErrorMessage();
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return;
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}
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size_t size = (result.cend() - result.cbegin());
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builder.SetSource(size, result.cbegin());
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#ifdef DUMP_SPIRV_ASSEMBLY
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{
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auto resultAsm = compiler.CompileGlslToSpvAssembly(source, strlen(source), kind, "myshader?", options);
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size_t sizeAsm = (resultAsm.cend() - resultAsm.cbegin());
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char* buffer = reinterpret_cast<char*>(malloc(sizeAsm + 1));
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memcpy(buffer, resultAsm.cbegin(), sizeAsm);
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buffer[sizeAsm] = '\0';
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printf("SPIRV ASSEMBLY DUMP START\n%s\nSPIRV ASSEMBLY DUMP END\n", buffer);
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free(buffer);
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}
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#endif
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#ifdef DUMP_SPIRV_JS_ARRAY
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printf("SPIRV JS ARRAY DUMP START\n");
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for (size_t i = 0; i < size; i++) {
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printf("%#010x", result.cbegin()[i]);
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if ((i + 1) % 4 == 0) {
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printf(",\n");
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} else {
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printf(", ");
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}
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}
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printf("\n");
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printf("SPIRV JS ARRAY DUMP END\n");
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#endif
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}
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nxt::ShaderModule CreateShaderModule(const nxt::Device& device, nxt::ShaderStage stage, const char* source) {
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nxt::ShaderModuleBuilder builder = device.CreateShaderModuleBuilder();
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FillShaderModuleBuilder(builder, stage, source);
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return builder.GetResult();
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}
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void CreateDefaultRenderPass(const nxt::Device& device, nxt::RenderPass* renderPass, nxt::Framebuffer* framebuffer) {
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*renderPass = device.CreateRenderPassBuilder()
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.SetAttachmentCount(1)
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.AttachmentSetFormat(0, nxt::TextureFormat::R8G8B8A8Unorm)
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.SetSubpassCount(1)
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.SubpassSetColorAttachment(0, 0, 0)
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.GetResult();
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*framebuffer = device.CreateFramebufferBuilder()
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.SetRenderPass(*renderPass)
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.SetDimensions(640, 480)
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.GetResult();
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}
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nxt::Buffer CreateFrozenBufferFromData(const nxt::Device& device, const void* data, uint32_t size, nxt::BufferUsageBit usage) {
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nxt::Buffer buffer = device.CreateBufferBuilder()
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.SetAllowedUsage(nxt::BufferUsageBit::TransferDst | usage)
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.SetInitialUsage(nxt::BufferUsageBit::TransferDst)
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.SetSize(size)
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.GetResult();
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buffer.SetSubData(0, size / sizeof(uint32_t), reinterpret_cast<const uint32_t*>(data));
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buffer.FreezeUsage(usage);
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return buffer;
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}
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}
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