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Introduce render passes

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* First API design (many features missing, including input attachments)
* Metal implementation (no OpenGL yet)
* Render-to-texture demo (a little broken until we have depth buffers)
* Update examples to use render passes
This commit is contained in:
Kai Ninomiya
2017-05-16 14:04:22 -07:00
committed by Kai Ninomiya
parent ca309db58a
commit 68df8b0a3a
34 changed files with 1305 additions and 54 deletions
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21
examples/HelloTriangle.c
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@@ -19,6 +19,8 @@
nxtDevice device;
nxtQueue queue;
nxtPipeline pipeline;
nxtRenderPass renderpass;
nxtFramebuffer framebuffer;
void init() {
nxtProcTable procs;
@@ -47,8 +49,25 @@ void init() {
"}\n";
nxtShaderModule fsModule = CreateShaderModule(device, NXT_SHADER_STAGE_FRAGMENT, fs);
{
nxtRenderPassBuilder builder = nxtDeviceCreateRenderPassBuilder(device);
nxtRenderPassBuilderSetAttachmentCount(builder, 1);
nxtRenderPassBuilderAttachmentSetFormat(builder, 0, NXT_TEXTURE_FORMAT_R8_G8_B8_A8_UNORM);
nxtRenderPassBuilderSetSubpassCount(builder, 1);
nxtRenderPassBuilderSubpassSetColorAttachment(builder, 0, 0, 0);
renderpass = nxtRenderPassBuilderGetResult(builder);
nxtRenderPassBuilderRelease(builder);
}
{
nxtFramebufferBuilder builder = nxtDeviceCreateFramebufferBuilder(device);
nxtFramebufferBuilderSetRenderPass(builder, renderpass);
nxtFramebufferBuilderSetDimensions(builder, 640, 480);
framebuffer = nxtFramebufferBuilderGetResult(builder);
nxtFramebufferBuilderRelease(builder);
}
{
nxtPipelineBuilder builder = nxtDeviceCreatePipelineBuilder(device);
nxtPipelineBuilderSetSubpass(builder, renderpass, 0);
nxtPipelineBuilderSetStage(builder, NXT_SHADER_STAGE_VERTEX, vsModule, "main");
nxtPipelineBuilderSetStage(builder, NXT_SHADER_STAGE_FRAGMENT, fsModule, "main");
pipeline = nxtPipelineBuilderGetResult(builder);
@@ -63,8 +82,10 @@ void frame() {
nxtCommandBuffer commands;
{
nxtCommandBufferBuilder builder = nxtDeviceCreateCommandBufferBuilder(device);
nxtCommandBufferBuilderBeginRenderPass(builder, renderpass, framebuffer);
nxtCommandBufferBuilderSetPipeline(builder, pipeline);
nxtCommandBufferBuilderDrawArrays(builder, 3, 1, 0, 0);
nxtCommandBufferBuilderEndRenderPass(builder);
commands = nxtCommandBufferBuilderGetResult(builder);
nxtCommandBufferBuilderRelease(builder);
}