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tests/shader_runner_metal: Implement render target readback.

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Feifan He 2024-11-04 15:51:01 +08:00 committed by Henri Verbeet
parent f0a864c8a2
commit 176e35b6cc
Notes: Henri Verbeet 2024-11-20 15:00:07 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1243
1 changed files with 50 additions and 2 deletions
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52
tests/shader_runner_metal.m
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@ -38,6 +38,12 @@ struct metal_resource
id<MTLTexture> texture;
};
struct metal_resource_readback
{
struct resource_readback rb;
id<MTLBuffer> buffer;
};
struct metal_runner
{
struct shader_runner r;
@ -439,12 +445,54 @@ static bool metal_runner_copy(struct shader_runner *r, struct resource *src, str
static struct resource_readback *metal_runner_get_resource_readback(struct shader_runner *r, struct resource *res)
{
return NULL;
struct metal_resource *resource = metal_resource(res);
struct metal_runner *runner = metal_runner(r);
id<MTLCommandBuffer> command_buffer;
struct metal_resource_readback *rb;
id<MTLBlitCommandEncoder> blit;
if (resource->r.desc.dimension != RESOURCE_DIMENSION_2D)
fatal_error("Unhandled resource dimension %#x.\n", resource->r.desc.dimension);
if (resource->r.desc.sample_count > 1)
fatal_error("Unhandled sample count %u.\n", resource->r.desc.sample_count);
rb = malloc(sizeof(*rb));
rb->rb.width = resource->r.desc.width;
rb->rb.height = resource->r.desc.height;
rb->rb.depth = 1;
rb->rb.row_pitch = rb->rb.width * resource->r.desc.texel_size;
rb->buffer = [runner->device newBufferWithLength:rb->rb.row_pitch * rb->rb.height
options:DEFAULT_BUFFER_RESOURCE_OPTIONS];
@autoreleasepool
{
command_buffer = [runner->queue commandBuffer];
blit = [command_buffer blitCommandEncoder];
[blit copyFromTexture:resource->texture
sourceSlice:0
sourceLevel:0
sourceOrigin:MTLOriginMake(0, 0, 0)
sourceSize:MTLSizeMake(rb->rb.width, rb->rb.height, rb->rb.depth)
toBuffer:rb->buffer
destinationOffset:0
destinationBytesPerRow:rb->rb.row_pitch
destinationBytesPerImage:0];
[blit endEncoding];
[command_buffer commit];
[command_buffer waitUntilCompleted];
}
rb->rb.data = rb->buffer.contents;
return &rb->rb;
}
static void metal_runner_release_readback(struct shader_runner *r, struct resource_readback *rb)
{
free(rb->data);
struct metal_resource_readback *metal_rb = CONTAINING_RECORD(rb, struct metal_resource_readback, rb);
[metal_rb->buffer release];
free(rb);
}