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skia / skia.git / 65d3ad95395791de882d4c8e4804803903534dce / . / src / gpu / mtl / GrMtlGpu.mm
blob: 913a3afe29670486471e98d72e48f4be4e40a0cc [file] [log] [blame]
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/mtl/GrMtlGpu.h"
#include "include/private/GrTypesPriv.h"
#include "src/core/SkCompressedDataUtils.h"
#include "src/core/SkConvertPixels.h"
#include "src/core/SkMipMap.h"
#include "src/gpu/GrDataUtils.h"
#include "src/gpu/GrRenderTargetPriv.h"
#include "src/gpu/GrTexturePriv.h"
#include "src/gpu/mtl/GrMtlBuffer.h"
#include "src/gpu/mtl/GrMtlCommandBuffer.h"
#include "src/gpu/mtl/GrMtlOpsRenderPass.h"
#include "src/gpu/mtl/GrMtlSemaphore.h"
#include "src/gpu/mtl/GrMtlTexture.h"
#include "src/gpu/mtl/GrMtlTextureRenderTarget.h"
#include "src/gpu/mtl/GrMtlUtil.h"
#include "src/sksl/SkSLCompiler.h"
#import <simd/simd.h>
#if !__has_feature(objc_arc)
#error This file must be compiled with Arc. Use -fobjc-arc flag
#endif
static bool get_feature_set(id<MTLDevice> device, MTLFeatureSet* featureSet) {
// Mac OSX
#ifdef SK_BUILD_FOR_MAC
if (@available(macOS 10.12, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_OSX_GPUFamily1_v2]) {
*featureSet = MTLFeatureSet_OSX_GPUFamily1_v2;
return true;
}
}
if ([device supportsFeatureSet:MTLFeatureSet_OSX_GPUFamily1_v1]) {
*featureSet = MTLFeatureSet_OSX_GPUFamily1_v1;
return true;
}
#endif
// iOS Family group 3
#ifdef SK_BUILD_FOR_IOS
if (@available(iOS 10.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily3_v2]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily3_v2;
return true;
}
}
if (@available(iOS 9.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily3_v1]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily3_v1;
return true;
}
}
// iOS Family group 2
if (@available(iOS 10.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v3]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily2_v3;
return true;
}
}
if (@available(iOS 9.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v2]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily2_v2;
return true;
}
}
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v1]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily2_v1;
return true;
}
// iOS Family group 1
if (@available(iOS 10.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily1_v3]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily1_v3;
return true;
}
}
if (@available(iOS 9.0, *)) {
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily1_v2]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily1_v2;
return true;
}
}
if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily1_v1]) {
*featureSet = MTLFeatureSet_iOS_GPUFamily1_v1;
return true;
}
#endif
// No supported feature sets were found
return false;
}
sk_sp<GrGpu> GrMtlGpu::Make(GrContext* context, const GrContextOptions& options,
id<MTLDevice> device, id<MTLCommandQueue> queue) {
if (!device || !queue) {
return nullptr;
}
MTLFeatureSet featureSet;
if (!get_feature_set(device, &featureSet)) {
return nullptr;
}
return sk_sp<GrGpu>(new GrMtlGpu(context, options, device, queue, featureSet));
}
GrMtlGpu::GrMtlGpu(GrContext* context, const GrContextOptions& options,
id<MTLDevice> device, id<MTLCommandQueue> queue, MTLFeatureSet featureSet)
: INHERITED(context)
, fDevice(device)
, fQueue(queue)
, fCmdBuffer(nullptr)
, fCompiler(new SkSL::Compiler())
, fResourceProvider(this)
, fDisconnected(false) {
fMtlCaps.reset(new GrMtlCaps(options, fDevice, featureSet));
fCaps = fMtlCaps;
}
GrMtlGpu::~GrMtlGpu() {
if (!fDisconnected) {
this->destroyResources();
}
}
void GrMtlGpu::disconnect(DisconnectType type) {
INHERITED::disconnect(type);
if (DisconnectType::kCleanup == type) {
this->destroyResources();
} else {
delete fCmdBuffer;
fCmdBuffer = nullptr;
fResourceProvider.destroyResources();
fQueue = nil;
fDevice = nil;
fDisconnected = true;
}
}
void GrMtlGpu::destroyResources() {
// Will implicitly delete the command buffer
this->submitCommandBuffer(SyncQueue::kForce_SyncQueue);
fResourceProvider.destroyResources();
fQueue = nil;
fDevice = nil;
}
GrOpsRenderPass* GrMtlGpu::getOpsRenderPass(
GrRenderTarget* renderTarget, GrSurfaceOrigin origin, const SkIRect& bounds,
const GrOpsRenderPass::LoadAndStoreInfo& colorInfo,
const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilInfo,
const SkTArray<GrSurfaceProxy*, true>& sampledProxies) {
return new GrMtlOpsRenderPass(this, renderTarget, origin, colorInfo, stencilInfo);
}
void GrMtlGpu::submit(GrOpsRenderPass* renderPass) {
GrMtlOpsRenderPass* mtlRenderPass = reinterpret_cast<GrMtlOpsRenderPass*>(renderPass);
mtlRenderPass->submit();
delete renderPass;
}
GrMtlCommandBuffer* GrMtlGpu::commandBuffer() {
if (!fCmdBuffer) {
fCmdBuffer = GrMtlCommandBuffer::Create(fQueue);
}
return fCmdBuffer;
}
void GrMtlGpu::submitCommandBuffer(SyncQueue sync) {
if (fCmdBuffer) {
fResourceProvider.addBufferCompletionHandler(fCmdBuffer);
fCmdBuffer->commit(SyncQueue::kForce_SyncQueue == sync);
delete fCmdBuffer;
fCmdBuffer = nullptr;
}
}
bool GrMtlGpu::onFinishFlush(GrSurfaceProxy*[], int, SkSurface::BackendSurfaceAccess,
const GrFlushInfo& info, const GrPrepareForExternalIORequests&) {
bool forceSync = SkToBool(info.fFlags & kSyncCpu_GrFlushFlag) ||
(info.fFinishedProc && !this->mtlCaps().fenceSyncSupport());
// TODO: do we care about info.fSemaphore?
if (forceSync) {
this->submitCommandBuffer(kForce_SyncQueue);
// After a forced sync everything previously sent to the GPU is done.
for (const auto& cb : fFinishCallbacks) {
cb.fCallback(cb.fContext);
this->deleteFence(cb.fFence);
}
fFinishCallbacks.clear();
if (info.fFinishedProc) {
info.fFinishedProc(info.fFinishedContext);
}
} else {
if (info.fFinishedProc) {
FinishCallback callback;
callback.fCallback = info.fFinishedProc;
callback.fContext = info.fFinishedContext;
callback.fFence = this->insertFence();
fFinishCallbacks.push_back(callback);
}
this->submitCommandBuffer(kSkip_SyncQueue);
}
return true;
}
void GrMtlGpu::checkFinishProcs() {
// Bail after the first unfinished sync since we expect they signal in the order inserted.
while (!fFinishCallbacks.empty() && this->waitFence(fFinishCallbacks.front().fFence,
/* timeout = */ 0)) {
fFinishCallbacks.front().fCallback(fFinishCallbacks.front().fContext);
this->deleteFence(fFinishCallbacks.front().fFence);
fFinishCallbacks.pop_front();
}
}
std::unique_ptr<GrSemaphore> GrMtlGpu::prepareTextureForCrossContextUsage(GrTexture*) {
submitCommandBuffer(SyncQueue::kSkip_SyncQueue);
return nullptr;
}
sk_sp<GrGpuBuffer> GrMtlGpu::onCreateBuffer(size_t size, GrGpuBufferType type,
GrAccessPattern accessPattern, const void* data) {
return GrMtlBuffer::Make(this, size, type, accessPattern, data);
}
static bool check_max_blit_width(int widthInPixels) {
if (widthInPixels > 32767) {
SkASSERT(false); // surfaces should not be this wide anyway
return false;
}
return true;
}
bool GrMtlGpu::uploadToTexture(GrMtlTexture* tex, int left, int top, int width, int height,
GrColorType dataColorType, const GrMipLevel texels[],
int mipLevelCount) {
SkASSERT(this->caps()->isFormatTexturable(tex->backendFormat()));
// The assumption is either that we have no mipmaps, or that our rect is the entire texture
SkASSERT(1 == mipLevelCount ||
(0 == left && 0 == top && width == tex->width() && height == tex->height()));
// We assume that if the texture has mip levels, we either upload to all the levels or just the
// first.
SkASSERT(1 == mipLevelCount || mipLevelCount == (tex->texturePriv().maxMipMapLevel() + 1));
if (!check_max_blit_width(width)) {
return false;
}
if (width == 0 || height == 0) {
return false;
}
if (!this->mtlCaps().isFormatTexturableAndUploadable(dataColorType, tex->backendFormat())) {
return false;
}
id<MTLTexture> mtlTexture = tex->mtlTexture();
SkASSERT(mtlTexture);
// Either upload only the first miplevel or all miplevels
SkASSERT(1 == mipLevelCount || mipLevelCount == (int)mtlTexture.mipmapLevelCount);
if (1 == mipLevelCount && !texels[0].fPixels) {
return true; // no data to upload
}
for (int i = 0; i < mipLevelCount; ++i) {
// We do not allow any gaps in the mip data
if (!texels[i].fPixels) {
return false;
}
}
size_t bpp = GrColorTypeBytesPerPixel(dataColorType);
SkTArray<size_t> individualMipOffsets(mipLevelCount);
size_t combinedBufferSize = GrComputeTightCombinedBufferSize(
bpp, {width, height}, &individualMipOffsets, mipLevelCount);
SkASSERT(combinedBufferSize);
size_t bufferOffset;
id<MTLBuffer> transferBuffer = this->resourceProvider().getDynamicBuffer(combinedBufferSize,
&bufferOffset);
if (!transferBuffer) {
return false;
}
char* buffer = (char*) transferBuffer.contents + bufferOffset;
int currentWidth = width;
int currentHeight = height;
int layerHeight = tex->height();
MTLOrigin origin = MTLOriginMake(left, top, 0);
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
for (int currentMipLevel = 0; currentMipLevel < mipLevelCount; currentMipLevel++) {
if (texels[currentMipLevel].fPixels) {
SkASSERT(1 == mipLevelCount || currentHeight == layerHeight);
const size_t trimRowBytes = currentWidth * bpp;
const size_t rowBytes = texels[currentMipLevel].fRowBytes;
// copy data into the buffer, skipping any trailing bytes
char* dst = buffer + individualMipOffsets[currentMipLevel];
const char* src = (const char*)texels[currentMipLevel].fPixels;
SkRectMemcpy(dst, trimRowBytes, src, rowBytes, trimRowBytes, currentHeight);
[blitCmdEncoder copyFromBuffer: transferBuffer
sourceOffset: bufferOffset + individualMipOffsets[currentMipLevel]
sourceBytesPerRow: trimRowBytes
sourceBytesPerImage: trimRowBytes*currentHeight
sourceSize: MTLSizeMake(currentWidth, currentHeight, 1)
toTexture: mtlTexture
destinationSlice: 0
destinationLevel: currentMipLevel
destinationOrigin: origin];
}
currentWidth = std::max(1, currentWidth/2);
currentHeight = std::max(1, currentHeight/2);
layerHeight = currentHeight;
}
#ifdef SK_BUILD_FOR_MAC
[transferBuffer didModifyRange: NSMakeRange(bufferOffset, combinedBufferSize)];
#endif
if (mipLevelCount < (int) tex->mtlTexture().mipmapLevelCount) {
tex->texturePriv().markMipMapsDirty();
}
return true;
}
bool GrMtlGpu::clearTexture(GrMtlTexture* tex, size_t bpp, uint32_t levelMask) {
SkASSERT(this->mtlCaps().isFormatTexturable(tex->backendFormat()));
if (!levelMask) {
return true;
}
id<MTLTexture> mtlTexture = tex->mtlTexture();
SkASSERT(mtlTexture);
// Either upload only the first miplevel or all miplevels
int mipLevelCount = (int)mtlTexture.mipmapLevelCount;
SkTArray<size_t> individualMipOffsets(mipLevelCount);
size_t combinedBufferSize = 0;
int currentWidth = tex->width();
int currentHeight = tex->height();
// The alignment must be at least 4 bytes and a multiple of the bytes per pixel of the image
// config. This works with the assumption that the bytes in pixel config is always a power of 2.
// TODO: can we just copy from a single buffer the size of the largest cleared level w/o a perf
// penalty?
SkASSERT((bpp & (bpp - 1)) == 0);
const size_t alignmentMask = 0x3 | (bpp - 1);
for (int currentMipLevel = 0; currentMipLevel < mipLevelCount; currentMipLevel++) {
if (levelMask & (1 << currentMipLevel)) {
const size_t trimmedSize = currentWidth * bpp * currentHeight;
const size_t alignmentDiff = combinedBufferSize & alignmentMask;
if (alignmentDiff != 0) {
combinedBufferSize += alignmentMask - alignmentDiff + 1;
}
individualMipOffsets.push_back(combinedBufferSize);
combinedBufferSize += trimmedSize;
}
currentWidth = std::max(1, currentWidth/2);
currentHeight = std::max(1, currentHeight/2);
}
SkASSERT(combinedBufferSize > 0 && !individualMipOffsets.empty());
// TODO: Create GrMtlTransferBuffer
NSUInteger options = 0;
if (@available(macOS 10.11, iOS 9.0, *)) {
options |= MTLResourceStorageModePrivate;
}
id<MTLBuffer> transferBuffer = [fDevice newBufferWithLength: combinedBufferSize
options: options];
if (nil == transferBuffer) {
return false;
}
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
// clear the buffer to transparent black
NSRange clearRange;
clearRange.location = 0;
clearRange.length = combinedBufferSize;
[blitCmdEncoder fillBuffer: transferBuffer
range: clearRange
value: 0];
// now copy buffer to texture
currentWidth = tex->width();
currentHeight = tex->height();
MTLOrigin origin = MTLOriginMake(0, 0, 0);
for (int currentMipLevel = 0; currentMipLevel < mipLevelCount; currentMipLevel++) {
if (levelMask & (1 << currentMipLevel)) {
const size_t rowBytes = currentWidth * bpp;
[blitCmdEncoder copyFromBuffer: transferBuffer
sourceOffset: individualMipOffsets[currentMipLevel]
sourceBytesPerRow: rowBytes
sourceBytesPerImage: rowBytes * currentHeight
sourceSize: MTLSizeMake(currentWidth, currentHeight, 1)
toTexture: mtlTexture
destinationSlice: 0
destinationLevel: currentMipLevel
destinationOrigin: origin];
}
currentWidth = std::max(1, currentWidth/2);
currentHeight = std::max(1, currentHeight/2);
}
if (mipLevelCount < (int) tex->mtlTexture().mipmapLevelCount) {
tex->texturePriv().markMipMapsDirty();
}
return true;
}
GrStencilAttachment* GrMtlGpu::createStencilAttachmentForRenderTarget(
const GrRenderTarget* rt, int width, int height, int numStencilSamples) {
SkASSERT(numStencilSamples == rt->numSamples());
SkASSERT(width >= rt->width());
SkASSERT(height >= rt->height());
int samples = rt->numSamples();
const GrMtlCaps::StencilFormat& sFmt = this->mtlCaps().preferredStencilFormat();
GrMtlStencilAttachment* stencil(GrMtlStencilAttachment::Create(this,
width,
height,
samples,
sFmt));
fStats.incStencilAttachmentCreates();
return stencil;
}
sk_sp<GrTexture> GrMtlGpu::onCreateTexture(SkISize dimensions,
const GrBackendFormat& format,
GrRenderable renderable,
int renderTargetSampleCnt,
SkBudgeted budgeted,
GrProtected isProtected,
int mipLevelCount,
uint32_t levelClearMask) {
// We don't support protected textures in Metal.
if (isProtected == GrProtected::kYes) {
return nullptr;
}
SkASSERT(mipLevelCount > 0);
MTLPixelFormat mtlPixelFormat = GrBackendFormatAsMTLPixelFormat(format);
SkASSERT(mtlPixelFormat != MTLPixelFormatInvalid);
SkASSERT(!this->caps()->isFormatCompressed(format));
sk_sp<GrMtlTexture> tex;
// This TexDesc refers to the texture that will be read by the client. Thus even if msaa is
// requested, this TexDesc describes the resolved texture. Therefore we always have samples
// set to 1.
MTLTextureDescriptor* texDesc = [[MTLTextureDescriptor alloc] init];
texDesc.textureType = MTLTextureType2D;
texDesc.pixelFormat = mtlPixelFormat;
texDesc.width = dimensions.fWidth;
texDesc.height = dimensions.fHeight;
texDesc.depth = 1;
texDesc.mipmapLevelCount = mipLevelCount;
texDesc.sampleCount = 1;
texDesc.arrayLength = 1;
// Make all textures have private gpu only access. We can use transfer buffers or textures
// to copy to them.
if (@available(macOS 10.11, iOS 9.0, *)) {
texDesc.storageMode = MTLStorageModePrivate;
texDesc.usage = MTLTextureUsageShaderRead;
texDesc.usage |= (renderable == GrRenderable::kYes) ? MTLTextureUsageRenderTarget : 0;
}
GrMipMapsStatus mipMapsStatus =
mipLevelCount > 1 ? GrMipMapsStatus::kDirty : GrMipMapsStatus::kNotAllocated;
if (renderable == GrRenderable::kYes) {
tex = GrMtlTextureRenderTarget::MakeNewTextureRenderTarget(
this, budgeted, dimensions, renderTargetSampleCnt, texDesc, mipMapsStatus);
} else {
tex = GrMtlTexture::MakeNewTexture(this, budgeted, dimensions, texDesc, mipMapsStatus);
}
if (!tex) {
return nullptr;
}
if (levelClearMask) {
this->clearTexture(tex.get(), this->mtlCaps().bytesPerPixel(mtlPixelFormat),
levelClearMask);
}
return std::move(tex);
}
sk_sp<GrTexture> GrMtlGpu::onCreateCompressedTexture(SkISize dimensions,
const GrBackendFormat& format,
SkBudgeted budgeted,
GrMipMapped mipMapped,
GrProtected isProtected,
const void* data, size_t dataSize) {
// We don't support protected textures in Metal.
if (isProtected == GrProtected::kYes) {
return nullptr;
}
SkASSERT(this->caps()->isFormatTexturable(format));
SkASSERT(data);
if (!check_max_blit_width(dimensions.width())) {
return nullptr;
}
MTLPixelFormat mtlPixelFormat = GrBackendFormatAsMTLPixelFormat(format);
SkASSERT(this->caps()->isFormatCompressed(format));
int numMipLevels = 1;
if (mipMapped == GrMipMapped::kYes) {
numMipLevels = SkMipMap::ComputeLevelCount(dimensions.width(), dimensions.height()) + 1;
}
// This TexDesc refers to the texture that will be read by the client. Thus even if msaa is
// requested, this TexDesc describes the resolved texture. Therefore we always have samples
// set to 1.
// Compressed textures with MIP levels or multiple samples are not supported as of now.
MTLTextureDescriptor* texDesc = [[MTLTextureDescriptor alloc] init];
texDesc.textureType = MTLTextureType2D;
texDesc.pixelFormat = mtlPixelFormat;
texDesc.width = dimensions.width();
texDesc.height = dimensions.height();
texDesc.depth = 1;
texDesc.mipmapLevelCount = numMipLevels;
texDesc.sampleCount = 1;
texDesc.arrayLength = 1;
// Make all textures have private gpu only access. We can use transfer buffers or textures
// to copy to them.
if (@available(macOS 10.11, iOS 9.0, *)) {
texDesc.storageMode = MTLStorageModePrivate;
texDesc.usage = MTLTextureUsageShaderRead;
}
GrMipMapsStatus mipMapsStatus = (mipMapped == GrMipMapped::kYes)
? GrMipMapsStatus::kValid
: GrMipMapsStatus::kNotAllocated;
auto tex = GrMtlTexture::MakeNewTexture(this, budgeted, dimensions, texDesc, mipMapsStatus);
if (!tex) {
return nullptr;
}
// Upload to texture
id<MTLTexture> mtlTexture = tex->mtlTexture();
SkASSERT(mtlTexture);
auto compressionType = GrMtlFormatToCompressionType(mtlTexture.pixelFormat);
SkASSERT(compressionType != SkImage::CompressionType::kNone);
SkTArray<size_t> individualMipOffsets(numMipLevels);
SkDEBUGCODE(size_t combinedBufferSize =) SkCompressedDataSize(compressionType, dimensions,
&individualMipOffsets,
mipMapped == GrMipMapped::kYes);
SkASSERT(individualMipOffsets.count() == numMipLevels);
SkASSERT(dataSize == combinedBufferSize);
size_t bufferOffset;
id<MTLBuffer> transferBuffer = this->resourceProvider().getDynamicBuffer(dataSize,
&bufferOffset);
if (!transferBuffer) {
return nullptr;
}
char* buffer = (char*) transferBuffer.contents + bufferOffset;
MTLOrigin origin = MTLOriginMake(0, 0, 0);
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
// copy data into the buffer, skipping any trailing bytes
memcpy(buffer, data, dataSize);
SkISize levelDimensions = dimensions;
for (int currentMipLevel = 0; currentMipLevel < numMipLevels; currentMipLevel++) {
const size_t levelRowBytes = GrCompressedRowBytes(compressionType, levelDimensions.width());
size_t levelSize = SkCompressedDataSize(compressionType, levelDimensions, nullptr, false);
// TODO: can this all be done in one go?
[blitCmdEncoder copyFromBuffer: transferBuffer
sourceOffset: bufferOffset + individualMipOffsets[currentMipLevel]
sourceBytesPerRow: levelRowBytes
sourceBytesPerImage: levelSize
sourceSize: MTLSizeMake(levelDimensions.width(),
levelDimensions.height(), 1)
toTexture: mtlTexture
destinationSlice: 0
destinationLevel: currentMipLevel
destinationOrigin: origin];
levelDimensions = {std::max(1, levelDimensions.width() /2),
std::max(1, levelDimensions.height()/2)};
}
#ifdef SK_BUILD_FOR_MAC
[transferBuffer didModifyRange: NSMakeRange(bufferOffset, dataSize)];
#endif
return std::move(tex);
}
static id<MTLTexture> get_texture_from_backend(const GrBackendTexture& backendTex) {
GrMtlTextureInfo textureInfo;
if (!backendTex.getMtlTextureInfo(&textureInfo)) {
return nil;
}
return GrGetMTLTexture(textureInfo.fTexture.get());
}
static id<MTLTexture> get_texture_from_backend(const GrBackendRenderTarget& backendRT) {
GrMtlTextureInfo textureInfo;
if (!backendRT.getMtlTextureInfo(&textureInfo)) {
return nil;
}
return GrGetMTLTexture(textureInfo.fTexture.get());
}
sk_sp<GrTexture> GrMtlGpu::onWrapBackendTexture(const GrBackendTexture& backendTex,
GrColorType grColorType,
GrWrapOwnership,
GrWrapCacheable cacheable,
GrIOType ioType) {
id<MTLTexture> mtlTexture = get_texture_from_backend(backendTex);
if (!mtlTexture) {
return nullptr;
}
return GrMtlTexture::MakeWrappedTexture(this, backendTex.dimensions(), mtlTexture, cacheable,
ioType);
}
sk_sp<GrTexture> GrMtlGpu::onWrapCompressedBackendTexture(const GrBackendTexture& backendTex,
GrWrapOwnership,
GrWrapCacheable cacheable) {
id<MTLTexture> mtlTexture = get_texture_from_backend(backendTex);
if (!mtlTexture) {
return nullptr;
}
return GrMtlTexture::MakeWrappedTexture(this, backendTex.dimensions(), mtlTexture, cacheable,
kRead_GrIOType);
}
sk_sp<GrTexture> GrMtlGpu::onWrapRenderableBackendTexture(const GrBackendTexture& backendTex,
int sampleCnt,
GrColorType colorType,
GrWrapOwnership,
GrWrapCacheable cacheable) {
id<MTLTexture> mtlTexture = get_texture_from_backend(backendTex);
if (!mtlTexture) {
return nullptr;
}
const GrMtlCaps& caps = this->mtlCaps();
MTLPixelFormat format = mtlTexture.pixelFormat;
if (!caps.isFormatRenderable(format, sampleCnt)) {
return nullptr;
}
if (@available(macOS 10.11, iOS 9.0, *)) {
SkASSERT(MTLTextureUsageRenderTarget & mtlTexture.usage);
}
sampleCnt = caps.getRenderTargetSampleCount(sampleCnt, format);
SkASSERT(sampleCnt);
return GrMtlTextureRenderTarget::MakeWrappedTextureRenderTarget(
this, backendTex.dimensions(), sampleCnt, mtlTexture, cacheable);
}
sk_sp<GrRenderTarget> GrMtlGpu::onWrapBackendRenderTarget(const GrBackendRenderTarget& backendRT,
GrColorType grColorType) {
// TODO: Revisit this when the Metal backend is completed. It may support MSAA render targets.
if (backendRT.sampleCnt() > 1) {
return nullptr;
}
id<MTLTexture> mtlTexture = get_texture_from_backend(backendRT);
if (!mtlTexture) {
return nullptr;
}
if (@available(macOS 10.11, iOS 9.0, *)) {
SkASSERT(MTLTextureUsageRenderTarget & mtlTexture.usage);
}
return GrMtlRenderTarget::MakeWrappedRenderTarget(this, backendRT.dimensions(),
backendRT.sampleCnt(), mtlTexture);
}
sk_sp<GrRenderTarget> GrMtlGpu::onWrapBackendTextureAsRenderTarget(
const GrBackendTexture& backendTex, int sampleCnt, GrColorType grColorType) {
id<MTLTexture> mtlTexture = get_texture_from_backend(backendTex);
if (!mtlTexture) {
return nullptr;
}
MTLPixelFormat format = mtlTexture.pixelFormat;
if (!this->mtlCaps().isFormatRenderable(format, sampleCnt)) {
return nullptr;
}
if (@available(macOS 10.11, iOS 9.0, *)) {
SkASSERT(MTLTextureUsageRenderTarget & mtlTexture.usage);
}
sampleCnt = this->mtlCaps().getRenderTargetSampleCount(sampleCnt, format);
if (!sampleCnt) {
return nullptr;
}
return GrMtlRenderTarget::MakeWrappedRenderTarget(this, backendTex.dimensions(), sampleCnt,
mtlTexture);
}
bool GrMtlGpu::onRegenerateMipMapLevels(GrTexture* texture) {
GrMtlTexture* grMtlTexture = static_cast<GrMtlTexture*>(texture);
id<MTLTexture> mtlTexture = grMtlTexture->mtlTexture();
// Automatic mipmap generation is only supported by color-renderable formats
if (!fMtlCaps->isFormatRenderable(mtlTexture.pixelFormat, 1) &&
// We have pixel configs marked as textureable-only that use RGBA8 as the internal format
MTLPixelFormatRGBA8Unorm != mtlTexture.pixelFormat) {
return false;
}
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
[blitCmdEncoder generateMipmapsForTexture: mtlTexture];
return true;
}
// Used to "clear" a backend texture to a constant color by transferring.
static GrColorType mtl_format_to_backend_tex_clear_colortype(MTLPixelFormat format) {
switch(format) {
case MTLPixelFormatA8Unorm: return GrColorType::kAlpha_8;
case MTLPixelFormatR8Unorm: return GrColorType::kR_8;
#ifdef SK_BUILD_FOR_IOS
case MTLPixelFormatB5G6R5Unorm: return GrColorType::kBGR_565;
case MTLPixelFormatABGR4Unorm: return GrColorType::kABGR_4444;
#endif
case MTLPixelFormatRGBA8Unorm: return GrColorType::kRGBA_8888;
case MTLPixelFormatRGBA8Unorm_sRGB: return GrColorType::kRGBA_8888_SRGB;
case MTLPixelFormatRG8Unorm: return GrColorType::kRG_88;
case MTLPixelFormatBGRA8Unorm: return GrColorType::kBGRA_8888;
case MTLPixelFormatRGB10A2Unorm: return GrColorType::kRGBA_1010102;
case MTLPixelFormatR16Float: return GrColorType::kR_F16;
case MTLPixelFormatRGBA16Float: return GrColorType::kRGBA_F16;
case MTLPixelFormatR16Unorm: return GrColorType::kR_16;
case MTLPixelFormatRG16Unorm: return GrColorType::kRG_1616;
case MTLPixelFormatRGBA16Unorm: return GrColorType::kRGBA_16161616;
case MTLPixelFormatRG16Float: return GrColorType::kRG_F16;
default: return GrColorType::kUnknown;
}
SkUNREACHABLE;
}
void copy_src_data(char* dst, size_t bytesPerPixel, const SkTArray<size_t>& individualMipOffsets,
const SkPixmap srcData[], int numMipLevels, size_t bufferSize) {
SkASSERT(srcData && numMipLevels);
SkASSERT(individualMipOffsets.count() == numMipLevels);
for (int level = 0; level < numMipLevels; ++level) {
const size_t trimRB = srcData[level].width() * bytesPerPixel;
SkASSERT(individualMipOffsets[level] + trimRB * srcData[level].height() <= bufferSize);
SkRectMemcpy(dst + individualMipOffsets[level], trimRB,
srcData[level].addr(), srcData[level].rowBytes(),
trimRB, srcData[level].height());
}
}
bool GrMtlGpu::createMtlTextureForBackendSurface(MTLPixelFormat mtlFormat,
SkISize dimensions,
GrTexturable texturable,
GrRenderable renderable,
GrMipMapped mipMapped,
GrMtlTextureInfo* info,
const BackendTextureData* data) {
SkASSERT(texturable == GrTexturable::kYes || renderable == GrRenderable::kYes);
if (texturable == GrTexturable::kNo) {
SkASSERT(!data && mipMapped == GrMipMapped::kNo);
}
if (texturable == GrTexturable::kYes && !fMtlCaps->isFormatTexturable(mtlFormat)) {
return false;
}
if (renderable == GrRenderable::kYes && !fMtlCaps->isFormatRenderable(mtlFormat, 1)) {
return false;
}
if (!check_max_blit_width(dimensions.width())) {
return false;
}
MTLTextureDescriptor* desc =
[MTLTextureDescriptor texture2DDescriptorWithPixelFormat: mtlFormat
width: dimensions.width()
height: dimensions.height()
mipmapped: mipMapped == GrMipMapped::kYes];
if (@available(macOS 10.11, iOS 9.0, *)) {
desc.storageMode = MTLStorageModePrivate;
desc.usage = texturable == GrTexturable::kYes ? MTLTextureUsageShaderRead : 0;
desc.usage |= renderable == GrRenderable::kYes ? MTLTextureUsageRenderTarget : 0;
}
id<MTLTexture> testTexture = [fDevice newTextureWithDescriptor: desc];
if (!data) {
info->fTexture.reset(GrRetainPtrFromId(testTexture));
return true;
}
// Create the transfer buffer
NSUInteger options = 0; // TODO: consider other options here
if (@available(macOS 10.11, iOS 9.0, *)) {
#ifdef SK_BUILD_FOR_MAC
options |= MTLResourceStorageModeManaged;
#else
options |= MTLResourceStorageModeShared;
#endif
}
int numMipLevels = 1;
if (mipMapped == GrMipMapped::kYes) {
numMipLevels = SkMipMap::ComputeLevelCount(dimensions.width(), dimensions.height()) + 1;
}
SkImage::CompressionType compression = GrMtlFormatToCompressionType(mtlFormat);
// Create a transfer buffer and fill with data.
SkSTArray<16, size_t> individualMipOffsets;
id<MTLBuffer> transferBuffer;
size_t transferBufferSize;
if (data->type() == BackendTextureData::Type::kCompressed ||
data->type() == BackendTextureData::Type::kPixmaps) {
if (compression == SkImage::CompressionType::kNone) {
size_t bytesPerPixel = fMtlCaps->bytesPerPixel(mtlFormat);
transferBufferSize = GrComputeTightCombinedBufferSize(bytesPerPixel, dimensions,
&individualMipOffsets,
numMipLevels);
} else {
transferBufferSize = SkCompressedDataSize(compression, dimensions,
&individualMipOffsets,
mipMapped == GrMipMapped::kYes);
}
SkASSERT(individualMipOffsets.count() == numMipLevels);
transferBuffer = [fDevice newBufferWithLength: transferBufferSize
options: options];
if (nil == transferBuffer) {
return false;
}
char* buffer = (char*)transferBuffer.contents;
if (data->type() == BackendTextureData::Type::kPixmaps) {
size_t bytesPerPixel = fMtlCaps->bytesPerPixel(mtlFormat);
copy_src_data(buffer, bytesPerPixel, individualMipOffsets, data->pixmaps(),
numMipLevels, transferBufferSize);
} else {
SkASSERT(data->type() == BackendTextureData::Type::kCompressed);
memcpy(buffer, data->compressedData(), data->compressedSize());
}
} else {
SkASSERT(data->type() == BackendTextureData::Type::kColor);
if (compression == SkImage::CompressionType::kNone) {
auto colorType = mtl_format_to_backend_tex_clear_colortype(mtlFormat);
if (colorType == GrColorType::kUnknown) {
return false;
}
GrImageInfo ii(colorType, kUnpremul_SkAlphaType, nullptr, dimensions);
auto rb = ii.minRowBytes();
transferBufferSize = rb*dimensions.height();
transferBuffer = [fDevice newBufferWithLength: transferBufferSize
options: options];
if (nil == transferBuffer) {
return false;
}
if (!GrClearImage(ii, transferBuffer.contents, rb, data->color())) {
return false;
}
// Reuse the same buffer for all levels. Should be ok since we made the row bytes tight.
individualMipOffsets.push_back_n(numMipLevels, (size_t)0);
} else {
transferBufferSize = SkCompressedDataSize(compression, dimensions,
&individualMipOffsets,
mipMapped == GrMipMapped::kYes);
SkASSERT(individualMipOffsets.count() == numMipLevels);
transferBuffer = [fDevice newBufferWithLength: transferBufferSize
options: options];
if (nil == transferBuffer) {
return false;
}
char* buffer = (char*)transferBuffer.contents;
GrFillInCompressedData(compression, dimensions, mipMapped, buffer, data->color());
}
}
// Transfer buffer contents to texture
MTLOrigin origin = MTLOriginMake(0, 0, 0);
id<MTLCommandBuffer> cmdBuffer = [fQueue commandBuffer];
id<MTLBlitCommandEncoder> blitCmdEncoder = [cmdBuffer blitCommandEncoder];
SkISize levelDimensions(dimensions);
for (int currentMipLevel = 0; currentMipLevel < numMipLevels; currentMipLevel++) {
size_t levelRowBytes;
size_t levelSize;
if (compression == SkImage::CompressionType::kNone) {
size_t bytesPerPixel = fMtlCaps->bytesPerPixel(mtlFormat);
levelRowBytes = levelDimensions.width() * bytesPerPixel;
levelSize = levelRowBytes * levelDimensions.height();
} else {
levelRowBytes = GrCompressedRowBytes(compression, levelDimensions.width());
levelSize = SkCompressedDataSize(compression, levelDimensions, nullptr,
false);
}
// TODO: can this all be done in one go?
[blitCmdEncoder copyFromBuffer: transferBuffer
sourceOffset: individualMipOffsets[currentMipLevel]
sourceBytesPerRow: levelRowBytes
sourceBytesPerImage: levelSize
sourceSize: MTLSizeMake(levelDimensions.width(),
levelDimensions.height(), 1)
toTexture: testTexture
destinationSlice: 0
destinationLevel: currentMipLevel
destinationOrigin: origin];
levelDimensions = { std::max(1, levelDimensions.width() / 2),
std::max(1, levelDimensions.height() / 2) };
}
#ifdef SK_BUILD_FOR_MAC
[transferBuffer didModifyRange: NSMakeRange(0, transferBufferSize)];
#endif
[blitCmdEncoder endEncoding];
[cmdBuffer commit];
[cmdBuffer waitUntilCompleted];
transferBuffer = nil;
info->fTexture.reset(GrRetainPtrFromId(testTexture));
return true;
}
GrBackendTexture GrMtlGpu::onCreateBackendTexture(SkISize dimensions,
const GrBackendFormat& format,
GrRenderable renderable,
GrMipMapped mipMapped,
GrProtected isProtected,
const BackendTextureData* data) {
const MTLPixelFormat mtlFormat = GrBackendFormatAsMTLPixelFormat(format);
GrMtlTextureInfo info;
if (!this->createMtlTextureForBackendSurface(mtlFormat, dimensions, GrTexturable::kYes,
renderable, mipMapped, &info, data)) {
return {};
}
GrBackendTexture backendTex(dimensions.width(), dimensions.height(), mipMapped, info);
return backendTex;
}
GrBackendTexture GrMtlGpu::onCreateCompressedBackendTexture(SkISize dimensions,
const GrBackendFormat& format,
GrMipMapped mipMapped,
GrProtected isProtected,
const BackendTextureData* data) {
const MTLPixelFormat mtlFormat = GrBackendFormatAsMTLPixelFormat(format);
GrMtlTextureInfo info;
if (!this->createMtlTextureForBackendSurface(mtlFormat, dimensions, GrTexturable::kYes,
GrRenderable::kNo, mipMapped, &info, data)) {
return {};
}
GrBackendTexture backendTex(dimensions.width(), dimensions.height(), mipMapped, info);
return backendTex;
}
void GrMtlGpu::deleteBackendTexture(const GrBackendTexture& tex) {
SkASSERT(GrBackendApi::kMetal == tex.backend());
// Nothing to do here, will get cleaned up when the GrBackendTexture object goes away
}
bool GrMtlGpu::compile(const GrProgramDesc&, const GrProgramInfo&) {
return false;
}
#if GR_TEST_UTILS
bool GrMtlGpu::isTestingOnlyBackendTexture(const GrBackendTexture& tex) const {
SkASSERT(GrBackendApi::kMetal == tex.backend());
GrMtlTextureInfo info;
if (!tex.getMtlTextureInfo(&info)) {
return false;
}
id<MTLTexture> mtlTexture = GrGetMTLTexture(info.fTexture.get());
if (!mtlTexture) {
return false;
}
if (@available(macOS 10.11, iOS 9.0, *)) {
return mtlTexture.usage & MTLTextureUsageShaderRead;
} else {
return true; // best we can do
}
}
GrBackendRenderTarget GrMtlGpu::createTestingOnlyBackendRenderTarget(int w, int h, GrColorType ct) {
if (w > this->caps()->maxRenderTargetSize() || h > this->caps()->maxRenderTargetSize()) {
return GrBackendRenderTarget();
}
MTLPixelFormat format = this->mtlCaps().getFormatFromColorType(ct);
if (format == MTLPixelFormatInvalid) {
return GrBackendRenderTarget();
}
GrMtlTextureInfo info;
if (!this->createMtlTextureForBackendSurface(format, {w, h}, GrTexturable::kNo,
GrRenderable::kYes,
GrMipMapped::kNo, &info, nullptr)) {
return {};
}
GrBackendRenderTarget backendRT(w, h, 1, info);
return backendRT;
}
void GrMtlGpu::deleteTestingOnlyBackendRenderTarget(const GrBackendRenderTarget& rt) {
SkASSERT(GrBackendApi::kMetal == rt.backend());
GrMtlTextureInfo info;
if (rt.getMtlTextureInfo(&info)) {
this->testingOnly_flushGpuAndSync();
// Nothing else to do here, will get cleaned up when the GrBackendRenderTarget
// is deleted.
}
}
void GrMtlGpu::testingOnly_flushGpuAndSync() {
this->submitCommandBuffer(kForce_SyncQueue);
}
#endif // GR_TEST_UTILS
static int get_surface_sample_cnt(GrSurface* surf) {
if (const GrRenderTarget* rt = surf->asRenderTarget()) {
return rt->numSamples();
}
return 0;
}
void GrMtlGpu::copySurfaceAsResolve(GrSurface* dst, GrSurface* src) {
// TODO: Add support for subrectangles
GrMtlRenderTarget* srcRT = static_cast<GrMtlRenderTarget*>(src->asRenderTarget());
GrRenderTarget* dstRT = dst->asRenderTarget();
id<MTLTexture> dstTexture;
if (dstRT) {
GrMtlRenderTarget* mtlRT = static_cast<GrMtlRenderTarget*>(dstRT);
dstTexture = mtlRT->mtlColorTexture();
} else {
SkASSERT(dst->asTexture());
dstTexture = static_cast<GrMtlTexture*>(dst->asTexture())->mtlTexture();
}
this->resolveTexture(dstTexture, srcRT->mtlColorTexture());
}
void GrMtlGpu::copySurfaceAsBlit(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
const SkIPoint& dstPoint) {
#ifdef SK_DEBUG
int dstSampleCnt = get_surface_sample_cnt(dst);
int srcSampleCnt = get_surface_sample_cnt(src);
SkASSERT(this->mtlCaps().canCopyAsBlit(dst, dstSampleCnt, src, srcSampleCnt,
srcRect, dstPoint, dst == src));
#endif
id<MTLTexture> dstTex = GrGetMTLTextureFromSurface(dst);
id<MTLTexture> srcTex = GrGetMTLTextureFromSurface(src);
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
[blitCmdEncoder copyFromTexture: srcTex
sourceSlice: 0
sourceLevel: 0
sourceOrigin: MTLOriginMake(srcRect.x(), srcRect.y(), 0)
sourceSize: MTLSizeMake(srcRect.width(), srcRect.height(), 1)
toTexture: dstTex
destinationSlice: 0
destinationLevel: 0
destinationOrigin: MTLOriginMake(dstPoint.fX, dstPoint.fY, 0)];
}
bool GrMtlGpu::onCopySurface(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
const SkIPoint& dstPoint) {
SkASSERT(!src->isProtected() && !dst->isProtected());
int dstSampleCnt = get_surface_sample_cnt(dst);
int srcSampleCnt = get_surface_sample_cnt(src);
bool success = false;
if (this->mtlCaps().canCopyAsResolve(dst, dstSampleCnt, src, srcSampleCnt, srcRect, dstPoint)) {
this->copySurfaceAsResolve(dst, src);
success = true;
} else if (this->mtlCaps().canCopyAsBlit(dst, dstSampleCnt, src, srcSampleCnt, srcRect,
dstPoint, dst == src)) {
this->copySurfaceAsBlit(dst, src, srcRect, dstPoint);
success = true;
}
if (success) {
SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.x(), dstPoint.y(),
srcRect.width(), srcRect.height());
// The rect is already in device space so we pass in kTopLeft so no flip is done.
this->didWriteToSurface(dst, kTopLeft_GrSurfaceOrigin, &dstRect);
}
return success;
}
bool GrMtlGpu::onWritePixels(GrSurface* surface, int left, int top, int width, int height,
GrColorType surfaceColorType, GrColorType srcColorType,
const GrMipLevel texels[], int mipLevelCount,
bool prepForTexSampling) {
GrMtlTexture* mtlTexture = static_cast<GrMtlTexture*>(surface->asTexture());
// TODO: In principle we should be able to support pure rendertargets as well, but
// until we find a use case we'll only support texture rendertargets.
if (!mtlTexture) {
return false;
}
if (!mipLevelCount) {
return false;
}
#ifdef SK_DEBUG
for (int i = 0; i < mipLevelCount; i++) {
SkASSERT(texels[i].fPixels);
}
#endif
return this->uploadToTexture(mtlTexture, left, top, width, height, srcColorType, texels,
mipLevelCount);
}
bool GrMtlGpu::onReadPixels(GrSurface* surface, int left, int top, int width, int height,
GrColorType surfaceColorType, GrColorType dstColorType, void* buffer,
size_t rowBytes) {
SkASSERT(surface);
if (surfaceColorType != dstColorType) {
return false;
}
int bpp = GrColorTypeBytesPerPixel(dstColorType);
size_t transBufferRowBytes = bpp * width;
size_t transBufferImageBytes = transBufferRowBytes * height;
// TODO: implement some way of reusing buffers instead of making a new one every time.
NSUInteger options = 0;
if (@available(macOS 10.11, iOS 9.0, *)) {
#ifdef SK_BUILD_FOR_MAC
options |= MTLResourceStorageModeManaged;
#else
options |= MTLResourceStorageModeShared;
#endif
}
id<MTLBuffer> transferBuffer = [fDevice newBufferWithLength: transBufferImageBytes
options: options];
if (!this->readOrTransferPixels(surface, left, top, width, height, dstColorType, transferBuffer,
0, transBufferImageBytes, transBufferRowBytes)) {
return false;
}
this->submitCommandBuffer(kForce_SyncQueue);
const void* mappedMemory = transferBuffer.contents;
SkRectMemcpy(buffer, rowBytes, mappedMemory, transBufferRowBytes, transBufferRowBytes, height);
return true;
}
bool GrMtlGpu::onTransferPixelsTo(GrTexture* texture, int left, int top, int width, int height,
GrColorType textureColorType, GrColorType bufferColorType,
GrGpuBuffer* transferBuffer, size_t offset, size_t rowBytes) {
SkASSERT(texture);
SkASSERT(transferBuffer);
if (textureColorType != bufferColorType) {
return false;
}
GrMtlTexture* grMtlTexture = static_cast<GrMtlTexture*>(texture);
id<MTLTexture> mtlTexture = grMtlTexture->mtlTexture();
SkASSERT(mtlTexture);
GrMtlBuffer* grMtlBuffer = static_cast<GrMtlBuffer*>(transferBuffer);
id<MTLBuffer> mtlBuffer = grMtlBuffer->mtlBuffer();
SkASSERT(mtlBuffer);
size_t bpp = GrColorTypeBytesPerPixel(bufferColorType);
if (offset % bpp) {
return false;
}
if (this->mtlCaps().bytesPerPixel(texture->backendFormat()) != bpp) {
return false;
}
MTLOrigin origin = MTLOriginMake(left, top, 0);
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
[blitCmdEncoder copyFromBuffer: mtlBuffer
sourceOffset: offset + grMtlBuffer->offset()
sourceBytesPerRow: rowBytes
sourceBytesPerImage: rowBytes*height
sourceSize: MTLSizeMake(width, height, 1)
toTexture: mtlTexture
destinationSlice: 0
destinationLevel: 0
destinationOrigin: origin];
return true;
}
bool GrMtlGpu::onTransferPixelsFrom(GrSurface* surface, int left, int top, int width, int height,
GrColorType surfaceColorType, GrColorType bufferColorType,
GrGpuBuffer* transferBuffer, size_t offset) {
SkASSERT(surface);
SkASSERT(transferBuffer);
if (surfaceColorType != bufferColorType) {
return false;
}
// Metal only supports offsets that are aligned to a pixel.
size_t bpp = GrColorTypeBytesPerPixel(bufferColorType);
if (offset % bpp) {
return false;
}
if (this->mtlCaps().bytesPerPixel(surface->backendFormat()) != bpp) {
return false;
}
GrMtlBuffer* grMtlBuffer = static_cast<GrMtlBuffer*>(transferBuffer);
grMtlBuffer->bind();
size_t transBufferRowBytes = bpp * width;
size_t transBufferImageBytes = transBufferRowBytes * height;
return this->readOrTransferPixels(surface, left, top, width, height, bufferColorType,
grMtlBuffer->mtlBuffer(), offset + grMtlBuffer->offset(),
transBufferImageBytes, transBufferRowBytes);
}
bool GrMtlGpu::readOrTransferPixels(GrSurface* surface, int left, int top, int width, int height,
GrColorType dstColorType, id<MTLBuffer> transferBuffer,
size_t offset, size_t imageBytes, size_t rowBytes) {
if (!check_max_blit_width(width)) {
return false;
}
id<MTLTexture> mtlTexture;
if (GrMtlRenderTarget* rt = static_cast<GrMtlRenderTarget*>(surface->asRenderTarget())) {
if (rt->numSamples() > 1) {
SkASSERT(rt->requiresManualMSAAResolve()); // msaa-render-to-texture not yet supported.
mtlTexture = rt->mtlResolveTexture();
} else {
SkASSERT(!rt->requiresManualMSAAResolve());
mtlTexture = rt->mtlColorTexture();
}
} else if (GrMtlTexture* texture = static_cast<GrMtlTexture*>(surface->asTexture())) {
mtlTexture = texture->mtlTexture();
}
if (!mtlTexture) {
return false;
}
id<MTLBlitCommandEncoder> blitCmdEncoder = this->commandBuffer()->getBlitCommandEncoder();
[blitCmdEncoder copyFromTexture: mtlTexture
sourceSlice: 0
sourceLevel: 0
sourceOrigin: MTLOriginMake(left, top, 0)
sourceSize: MTLSizeMake(width, height, 1)
toBuffer: transferBuffer
destinationOffset: offset
destinationBytesPerRow: rowBytes
destinationBytesPerImage: imageBytes];
#ifdef SK_BUILD_FOR_MAC
// Sync GPU data back to the CPU
[blitCmdEncoder synchronizeResource: transferBuffer];
#endif
return true;
}
GrFence SK_WARN_UNUSED_RESULT GrMtlGpu::insertFence() {
GrMtlCommandBuffer* cmdBuffer = this->commandBuffer();
// We create a semaphore and signal it within the current
// command buffer's completion handler.
dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
cmdBuffer->addCompletedHandler(^(id <MTLCommandBuffer>commandBuffer) {
dispatch_semaphore_signal(semaphore);
});
const void* cfFence = (__bridge_retained const void*) semaphore;
return (GrFence) cfFence;
}
bool GrMtlGpu::waitFence(GrFence fence, uint64_t timeout) {
const void* cfFence = (const void*) fence;
dispatch_semaphore_t semaphore = (__bridge dispatch_semaphore_t)cfFence;
long result = dispatch_semaphore_wait(semaphore, timeout);
return !result;
}
void GrMtlGpu::deleteFence(GrFence fence) const {
const void* cfFence = (const void*) fence;
// In this case it's easier to release in CoreFoundation than depend on ARC
CFRelease(cfFence);
}
std::unique_ptr<GrSemaphore> SK_WARN_UNUSED_RESULT GrMtlGpu::makeSemaphore(bool /*isOwned*/) {
SkASSERT(this->caps()->semaphoreSupport());
return GrMtlSemaphore::Make(this);
}
std::unique_ptr<GrSemaphore> GrMtlGpu::wrapBackendSemaphore(
const GrBackendSemaphore& semaphore,
GrResourceProvider::SemaphoreWrapType wrapType,
GrWrapOwnership /*ownership*/) {
SkASSERT(this->caps()->semaphoreSupport());
return GrMtlSemaphore::MakeWrapped(semaphore.mtlSemaphore(), semaphore.mtlValue());
}
void GrMtlGpu::insertSemaphore(GrSemaphore* semaphore) {
if (@available(macOS 10.14, iOS 12.0, *)) {
GrMtlSemaphore* mtlSem = static_cast<GrMtlSemaphore*>(semaphore);
this->commandBuffer()->encodeSignalEvent(mtlSem->event(), mtlSem->value());
}
}
void GrMtlGpu::waitSemaphore(GrSemaphore* semaphore) {
if (@available(macOS 10.14, iOS 12.0, *)) {
GrMtlSemaphore* mtlSem = static_cast<GrMtlSemaphore*>(semaphore);
this->commandBuffer()->encodeWaitForEvent(mtlSem->event(), mtlSem->value());
}
}
void GrMtlGpu::onResolveRenderTarget(GrRenderTarget* target, const SkIRect&,
ForExternalIO forExternalIO) {
this->resolveTexture(static_cast<GrMtlRenderTarget*>(target)->mtlResolveTexture(),
static_cast<GrMtlRenderTarget*>(target)->mtlColorTexture());
if (ForExternalIO::kYes == forExternalIO) {
// This resolve is called when we are preparing an msaa surface for external I/O. It is
// called after flushing, so we need to make sure we submit the command buffer after
// doing the resolve so that the resolve actually happens.
this->submitCommandBuffer(kSkip_SyncQueue);
}
}
void GrMtlGpu::resolveTexture(id<MTLTexture> resolveTexture, id<MTLTexture> colorTexture) {
auto renderPassDesc = [MTLRenderPassDescriptor renderPassDescriptor];
renderPassDesc.colorAttachments[0].texture = colorTexture;
renderPassDesc.colorAttachments[0].slice = 0;
renderPassDesc.colorAttachments[0].level = 0;
renderPassDesc.colorAttachments[0].resolveTexture = resolveTexture;
renderPassDesc.colorAttachments[0].slice = 0;
renderPassDesc.colorAttachments[0].level = 0;
renderPassDesc.colorAttachments[0].loadAction = MTLLoadActionLoad;
renderPassDesc.colorAttachments[0].storeAction = MTLStoreActionMultisampleResolve;
id<MTLRenderCommandEncoder> cmdEncoder =
this->commandBuffer()->getRenderCommandEncoder(renderPassDesc, nullptr, nullptr);
SkASSERT(nil != cmdEncoder);
cmdEncoder.label = @"resolveTexture";
}
#if GR_TEST_UTILS
void GrMtlGpu::testingOnly_startCapture() {
if (@available(macOS 10.13, iOS 11.0, *)) {
// TODO: add Metal 3 interface as well
MTLCaptureManager* captureManager = [MTLCaptureManager sharedCaptureManager];
[captureManager startCaptureWithDevice: fDevice];
}
}
void GrMtlGpu::testingOnly_endCapture() {
if (@available(macOS 10.13, iOS 11.0, *)) {
MTLCaptureManager* captureManager = [MTLCaptureManager sharedCaptureManager];
[captureManager stopCapture];
}
}
#endif
#ifdef SK_ENABLE_DUMP_GPU
#include "src/utils/SkJSONWriter.h"
void GrMtlGpu::onDumpJSON(SkJSONWriter* writer) const {
// We are called by the base class, which has already called beginObject(). We choose to nest
// all of our caps information in a named sub-object.
writer->beginObject("Metal GPU");
writer->beginObject("Device");
writer->appendString("name", fDevice.name.UTF8String);
#ifdef SK_BUILD_FOR_MAC
if (@available(macOS 10.11, *)) {
writer->appendBool("isHeadless", fDevice.isHeadless);
writer->appendBool("isLowPower", fDevice.isLowPower);
}
if (@available(macOS 10.13, *)) {
writer->appendBool("isRemovable", fDevice.isRemovable);
}
#endif
if (@available(macOS 10.13, iOS 11.0, *)) {
writer->appendU64("registryID", fDevice.registryID);
}
#ifdef SK_BUILD_FOR_MAC
if (@available(macOS 10.15, *)) {
switch (fDevice.location) {
case MTLDeviceLocationBuiltIn:
writer->appendString("location", "builtIn");
break;
case MTLDeviceLocationSlot:
writer->appendString("location", "slot");
break;
case MTLDeviceLocationExternal:
writer->appendString("location", "external");
break;
case MTLDeviceLocationUnspecified:
writer->appendString("location", "unspecified");
break;
default:
writer->appendString("location", "unknown");
break;
}
writer->appendU64("locationNumber", fDevice.locationNumber);
writer->appendU64("maxTransferRate", fDevice.maxTransferRate);
}
#endif // SK_BUILD_FOR_MAC
if (@available(macOS 10.15, iOS 13.0, *)) {
writer->appendBool("hasUnifiedMemory", fDevice.hasUnifiedMemory);
}
#ifdef SK_BUILD_FOR_MAC
if (@available(macOS 10.15, *)) {
writer->appendU64("peerGroupID", fDevice.peerGroupID);
writer->appendU32("peerCount", fDevice.peerCount);
writer->appendU32("peerIndex", fDevice.peerIndex);
}
if (@available(macOS 10.12, *)) {
writer->appendU64("recommendedMaxWorkingSetSize", fDevice.recommendedMaxWorkingSetSize);
}
#endif // SK_BUILD_FOR_MAC
if (@available(macOS 10.13, iOS 11.0, *)) {
writer->appendU64("currentAllocatedSize", fDevice.currentAllocatedSize);
writer->appendU64("maxThreadgroupMemoryLength", fDevice.maxThreadgroupMemoryLength);
}
if (@available(macOS 10.11, iOS 9.0, *)) {
writer->beginObject("maxThreadsPerThreadgroup");
writer->appendU64("width", fDevice.maxThreadsPerThreadgroup.width);
writer->appendU64("height", fDevice.maxThreadsPerThreadgroup.height);
writer->appendU64("depth", fDevice.maxThreadsPerThreadgroup.depth);
writer->endObject();
}
if (@available(macOS 10.13, iOS 11.0, *)) {
writer->appendBool("areProgrammableSamplePositionsSupported",
fDevice.areProgrammableSamplePositionsSupported);
writer->appendBool("areRasterOrderGroupsSupported",
fDevice.areRasterOrderGroupsSupported);
}
#ifdef SK_BUILD_FOR_MAC
if (@available(macOS 10.11, *)) {
writer->appendBool("isDepth24Stencil8PixelFormatSupported",
fDevice.isDepth24Stencil8PixelFormatSupported);
}
if (@available(macOS 10.15, *)) {
writer->appendBool("areBarycentricCoordsSupported",
fDevice.areBarycentricCoordsSupported);
writer->appendBool("supportsShaderBarycentricCoordinates",
fDevice.supportsShaderBarycentricCoordinates);
}
#endif // SK_BUILD_FOR_MAC
if (@available(macOS 10.14, iOS 12.0, *)) {
writer->appendU64("maxBufferLength", fDevice.maxBufferLength);
}
if (@available(macOS 10.13, iOS 11.0, *)) {
switch (fDevice.readWriteTextureSupport) {
case MTLReadWriteTextureTier1:
writer->appendString("readWriteTextureSupport", "tier1");
break;
case MTLReadWriteTextureTier2:
writer->appendString("readWriteTextureSupport", "tier2");
break;
case MTLReadWriteTextureTierNone:
writer->appendString("readWriteTextureSupport", "tierNone");
break;
default:
writer->appendString("readWriteTextureSupport", "unknown");
break;
}
switch (fDevice.argumentBuffersSupport) {
case MTLArgumentBuffersTier1:
writer->appendString("argumentBuffersSupport", "tier1");
break;
case MTLArgumentBuffersTier2:
writer->appendString("argumentBuffersSupport", "tier2");
break;
default:
writer->appendString("argumentBuffersSupport", "unknown");
break;
}
}
if (@available(macOS 10.14, iOS 12.0, *)) {
writer->appendU64("maxArgumentBufferSamplerCount", fDevice.maxArgumentBufferSamplerCount);
}
#ifdef SK_BUILD_FOR_IOS
if (@available(iOS 13.0, *)) {
writer->appendU64("sparseTileSizeInBytes", fDevice.sparseTileSizeInBytes);
}
#endif
writer->endObject();
writer->appendString("queue", fQueue.label.UTF8String);
writer->appendBool("disconnected", fDisconnected);
writer->endObject();
}
#endif