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https://github.com/encounter/dawn-cmake.git
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3d670506e3
This patch is the first one to descriptorze texture view. In this patch, we completely remove TextureViewBuilder and add the entry point CreateDefaultTextureView for creating a texture view on a non-array 2D texture using the same type and format. Texture view descriptors and 2D array texture views will be supported in the next patch. BUG=dawn:1, dawn:16 Change-Id: Ibd2a0bcf02cbb567a98d2faaaaa897eff2c062e5 Reviewed-on: https://dawn-review.googlesource.com/1440 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Kai Ninomiya <kainino@chromium.org> Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
117 lines
4.2 KiB
C++
117 lines
4.2 KiB
C++
// Copyright 2017 The Dawn 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 "SampleUtils.h"
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#include "utils/DawnHelpers.h"
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#include "utils/SystemUtils.h"
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dawnDevice device;
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dawnQueue queue;
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dawnSwapChain swapchain;
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dawnRenderPipeline pipeline;
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dawnTextureFormat swapChainFormat;
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void init() {
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device = CreateCppDawnDevice().Release();
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queue = dawnDeviceCreateQueue(device);
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{
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dawnSwapChainBuilder builder = dawnDeviceCreateSwapChainBuilder(device);
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uint64_t swapchainImpl = GetSwapChainImplementation();
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dawnSwapChainBuilderSetImplementation(builder, swapchainImpl);
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swapchain = dawnSwapChainBuilderGetResult(builder);
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dawnSwapChainBuilderRelease(builder);
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}
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swapChainFormat = static_cast<dawnTextureFormat>(GetPreferredSwapChainTextureFormat());
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dawnSwapChainConfigure(swapchain, swapChainFormat, DAWN_TEXTURE_USAGE_BIT_OUTPUT_ATTACHMENT, 640,
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480);
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const char* vs =
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"#version 450\n"
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"const vec2 pos[3] = vec2[3](vec2(0.0f, 0.5f), vec2(-0.5f, -0.5f), vec2(0.5f, -0.5f));\n"
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"void main() {\n"
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" gl_Position = vec4(pos[gl_VertexIndex], 0.0, 1.0);\n"
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"}\n";
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dawnShaderModule vsModule = utils::CreateShaderModule(dawn::Device(device), dawn::ShaderStage::Vertex, vs).Release();
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const char* fs =
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"#version 450\n"
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"layout(location = 0) out vec4 fragColor;"
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"void main() {\n"
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" fragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
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"}\n";
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dawnShaderModule fsModule = utils::CreateShaderModule(device, dawn::ShaderStage::Fragment, fs).Release();
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{
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dawnRenderPipelineBuilder builder = dawnDeviceCreateRenderPipelineBuilder(device);
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dawnRenderPipelineBuilderSetColorAttachmentFormat(builder, 0, swapChainFormat);
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dawnRenderPipelineBuilderSetStage(builder, DAWN_SHADER_STAGE_VERTEX, vsModule, "main");
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dawnRenderPipelineBuilderSetStage(builder, DAWN_SHADER_STAGE_FRAGMENT, fsModule, "main");
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pipeline = dawnRenderPipelineBuilderGetResult(builder);
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dawnRenderPipelineBuilderRelease(builder);
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}
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dawnShaderModuleRelease(vsModule);
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dawnShaderModuleRelease(fsModule);
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}
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void frame() {
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dawnTexture backbuffer = dawnSwapChainGetNextTexture(swapchain);
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dawnTextureView backbufferView;
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{
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backbufferView = dawnTextureCreateDefaultTextureView(backbuffer);
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}
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dawnRenderPassDescriptor renderpassInfo;
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{
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dawnRenderPassDescriptorBuilder builder = dawnDeviceCreateRenderPassDescriptorBuilder(device);
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dawnRenderPassDescriptorBuilderSetColorAttachment(builder, 0, backbufferView, DAWN_LOAD_OP_CLEAR);
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renderpassInfo = dawnRenderPassDescriptorBuilderGetResult(builder);
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dawnRenderPassDescriptorBuilderRelease(builder);
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}
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dawnCommandBuffer commands;
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{
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dawnCommandBufferBuilder builder = dawnDeviceCreateCommandBufferBuilder(device);
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dawnCommandBufferBuilderBeginRenderPass(builder, renderpassInfo);
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dawnCommandBufferBuilderSetRenderPipeline(builder, pipeline);
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dawnCommandBufferBuilderDrawArrays(builder, 3, 1, 0, 0);
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dawnCommandBufferBuilderEndRenderPass(builder);
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commands = dawnCommandBufferBuilderGetResult(builder);
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dawnCommandBufferBuilderRelease(builder);
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}
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dawnQueueSubmit(queue, 1, &commands);
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dawnCommandBufferRelease(commands);
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dawnSwapChainPresent(swapchain, backbuffer);
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dawnRenderPassDescriptorRelease(renderpassInfo);
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dawnTextureViewRelease(backbufferView);
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DoFlush();
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}
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int main(int argc, const char* argv[]) {
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if (!InitSample(argc, argv)) {
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return 1;
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}
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init();
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while (!ShouldQuit()) {
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frame();
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utils::USleep(16000);
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}
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// TODO release stuff
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}
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