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Add T->B copies.

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This implements T->B copies on the Metal backend only and while it adds
validation tests, end2end tests will be done in a follow-up commit.
This commit is contained in:
Corentin Wallez
2017-06-26 16:23:03 -04:00
committed by Corentin Wallez
parent 492cbe4a43
commit e9d347e89e
8 changed files with 254 additions and 0 deletions
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33
src/backend/metal/CommandBufferMTL.mm
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@@ -209,6 +209,39 @@ namespace metal {
}
break;
case Command::CopyTextureToBuffer:
{
CopyTextureToBufferCmd* copy = commands.NextCommand<CopyTextureToBufferCmd>();
auto& src = copy->source;
auto& dst = copy->destination;
Texture* texture = ToBackend(src.texture.Get());
Buffer* buffer = ToBackend(dst.buffer.Get());
unsigned rowSize = src.width * TextureFormatPixelSize(texture->GetFormat());
MTLOrigin origin;
origin.x = src.x;
origin.y = src.y;
origin.z = src.z;
MTLSize size;
size.width = src.width;
size.height = src.height;
size.depth = src.depth;
encoders.EnsureBlit(commandBuffer);
[encoders.blit
copyFromTexture:texture->GetMTLTexture()
sourceSlice:0
sourceLevel:src.level
sourceOrigin:origin
sourceSize:size
toBuffer:buffer->GetMTLBuffer()
destinationOffset:dst.offset
destinationBytesPerRow:rowSize
destinationBytesPerImage:rowSize * src.height];
}
break;
case Command::Dispatch:
{
DispatchCmd* dispatch = commands.NextCommand<DispatchCmd>();