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kinda start to fix render pass descriptors in metal

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This commit is contained in:
Gregory Wells
2025-07-24 08:29:05 -04:00
parent ddf23f71fc
commit 1d23dd0b80
11 changed files with 61 additions and 39 deletions
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4
projects/apis/metal/src/renderpass/metal_render_pass.h
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@@ -1,10 +1,13 @@
#pragma once
#include "renderpass/gryphn_render_pass_descriptor.h"
#import <Metal/MTLRenderPass.h>
#import <Metal/Metal.h>
typedef MTLRenderPassDescriptor* mtlSubpass;
typedef struct mtlColorAttachmentCopyInfo {
MTLPixelFormat format;
uint32_t attachmentIndex;
int resolveAttachmentIndex; // -1 means no resolve attachment
} mtlColorAttachmentCopyInfo;
@@ -12,6 +15,7 @@ typedef struct mtlColorAttachmentCopyInfo {
typedef struct mtlSubpassCopyInfo {
uint32_t colorAttachmentCount;
mtlColorAttachmentCopyInfo* colorAttachments;
int depthAttachmentIndex; // -1 means no depth attachment
} mtlSubpassCopyInfo;
typedef struct gnPlatformRenderPassDescriptor_t {

12
projects/apis/metal/src/renderpass/metal_render_pass.m
View File

@@ -45,28 +45,32 @@ gnReturnCode createMetalRenderPass(gnRenderPassDescriptor renderPass, gnDevice d
uint32_t attachmentIndex = info.subpassInfos[i].colorAttachments[c].index;
int resolveAttachmentIndex = -1;
renderPass->renderPassDescriptor->subpasses[i].colorAttachments[c] = [[MTLRenderPassColorAttachmentDescriptor alloc] init];
MTLRenderPassColorAttachmentDescriptor* color = renderPass->renderPassDescriptor->subpasses[i].colorAttachments[c];
if (resolve) {
resolveAttachmentIndex = info.subpassInfos[i].resolveAttachments[c].index;
color.storeAction = mtlGryphnStoreOperationResolve(info.attachmentInfos[attachmentIndex].storeOperation);
} else {
} else
color.storeAction = mtlGryphnStoreOperation(info.attachmentInfos[attachmentIndex].storeOperation);
}
color.loadAction = mtlGryphnLoadOperation(info.attachmentInfos[attachmentIndex].loadOperation);
color.storeAction = MTLStoreActionStoreAndMultisampleResolve;
if (color.loadAction == MTLLoadActionClear)
color.clearColor = MTLClearColorMake(0.0, 0.0, 0.0, 1.0);
renderPass->renderPassDescriptor->copyInfos[i].colorAttachments[i].attachmentIndex = attachmentIndex;
renderPass->renderPassDescriptor->copyInfos[i].colorAttachments[i].resolveAttachmentIndex = resolveAttachmentIndex;
renderPass->renderPassDescriptor->copyInfos[i].colorAttachments[c].format = MTLPixelFormatBGRA8Unorm_sRGB;
renderPass->renderPassDescriptor->copyInfos[i].colorAttachments[c].attachmentIndex = attachmentIndex;
renderPass->renderPassDescriptor->copyInfos[i].colorAttachments[c].resolveAttachmentIndex = resolveAttachmentIndex;
}
renderPass->renderPassDescriptor->copyInfos[i].depthAttachmentIndex = -1;
if (info.subpassInfos[i].depthAttachment != NULL) {
MTLRenderPassDepthAttachmentDescriptor* depthAttachment = renderPass->renderPassDescriptor->subpasses[i].depthAttachment;
uint32_t attachmentIndex = info.subpassInfos[i].depthAttachment->index;
depthAttachment.loadAction = mtlGryphnLoadOperation(info.attachmentInfos[attachmentIndex].loadOperation);
depthAttachment.storeAction = mtlGryphnStoreOperation(info.attachmentInfos[attachmentIndex].storeOperation);
depthAttachment.clearDepth = 1.0f;
renderPass->renderPassDescriptor->copyInfos[i].depthAttachmentIndex = attachmentIndex;
}
}
return GN_SUCCESS;