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skia: Add support for CHROMIUM_image backed textures.

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I created a new abstract base class TextureStorageAllocator that consumers of
Skia can subclass and pass back to Skia. When a surface is created with a
pointer to a TextureStorageAllocator, any textures it creates, or that are
derived from the original surface, will allocate and deallocate storage using
the methods on TextureStorageAllocator.

BUG=https://code.google.com/p/chromium/issues/detail?id=579664
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002

Review URL: https://codereview.chromium.org/1623653002
This commit is contained in:
erikchen 2016-02-04 12:03:07 -08:00 committed by Commit bot
parent f7cdb06d62
commit 92098e691f
12 changed files with 226 additions and 80 deletions
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10
include/core/SkSurface.h
View File

@ -120,12 +120,16 @@ public:
/**
* Return a new surface whose contents will be drawn to an offscreen
* render target, allocated by the surface.
*
* The GrTextureStorageAllocator will be reused if SkImage snapshots create
* additional textures.
*/
static SkSurface* NewRenderTarget(GrContext*, Budgeted, const SkImageInfo&, int sampleCount,
const SkSurfaceProps* = NULL);
static SkSurface* NewRenderTarget(
GrContext*, Budgeted, const SkImageInfo&, int sampleCount, const SkSurfaceProps* = NULL,
GrTextureStorageAllocator = GrTextureStorageAllocator());
static SkSurface* NewRenderTarget(GrContext* gr, Budgeted b, const SkImageInfo& info) {
return NewRenderTarget(gr, b, info, 0, NULL);
return NewRenderTarget(gr, b, info, 0);
}
int width() const { return fWidth; }

64
include/gpu/GrTypes.h
View File

@ -409,6 +409,9 @@ enum GrSurfaceFlags {
GR_MAKE_BITFIELD_OPS(GrSurfaceFlags)
// opaque type for 3D API object handles
typedef intptr_t GrBackendObject;
/**
* Some textures will be stored such that the upper and left edges of the content meet at the
* the origin (in texture coord space) and for other textures the lower and left edges meet at
@ -422,6 +425,58 @@ enum GrSurfaceOrigin {
kBottomLeft_GrSurfaceOrigin,
};
/**
* An container of function pointers which consumers of Skia can fill in and
* pass to Skia. Skia will use these function pointers in place of its backend
* API texture creation function. Either all of the function pointers should be
* filled in, or they should all be nullptr.
*/
struct GrTextureStorageAllocator {
GrTextureStorageAllocator()
: fAllocateTextureStorage(nullptr)
, fDeallocateTextureStorage(nullptr) {
}
enum class Result {
kSucceededAndUploaded,
kSucceededWithoutUpload,
kFailed
};
typedef Result (*AllocateTextureStorageProc)(
void* ctx, GrBackendObject texture, unsigned width,
unsigned height, GrPixelConfig config, const void* srcData, GrSurfaceOrigin);
typedef void (*DeallocateTextureStorageProc)(void* ctx, GrBackendObject texture);
/*
* Generates and binds a texture to |textureStorageTarget()|. Allocates
* storage for the texture.
*
* In OpenGL, the MIN and MAX filters for the created texture must be
* GL_LINEAR. The WRAP_S and WRAP_T must be GL_CLAMP_TO_EDGE.
*
* If |srcData| is not nullptr, then the implementation of this function
* may attempt to upload the data into the texture. On successful upload,
* or if |srcData| is nullptr, returns kSucceededAndUploaded.
*/
AllocateTextureStorageProc fAllocateTextureStorage;
/*
* Deallocate the storage for the given texture.
*
* Skia does not always destroy its outstanding textures. See
* GrContext::abandonContext() for more details. The consumer of Skia is
* responsible for making sure that all textures are destroyed, even if this
* callback is not invoked.
*/
DeallocateTextureStorageProc fDeallocateTextureStorage;
/*
* The context to use when invoking fAllocateTextureStorage and
* fDeallocateTextureStorage.
*/
void* fCtx;
};
/**
* Describes a surface to be created.
*/
@ -454,6 +509,12 @@ struct GrSurfaceDesc {
* max supported count.
*/
int fSampleCnt;
/**
* A custom platform-specific allocator to use in place of the backend APIs
* usual texture creation method (e.g. TexImage2D in OpenGL).
*/
GrTextureStorageAllocator fTextureStorageAllocator;
};
// Legacy alias
@ -469,9 +530,6 @@ enum GrClipType {
///////////////////////////////////////////////////////////////////////////////
// opaque type for 3D API object handles
typedef intptr_t GrBackendObject;
/** Ownership rules for external GPU resources imported into Skia. */
enum GrWrapOwnership {

3
src/gpu/GrTexture.cpp
View File

@ -85,7 +85,8 @@ GrTexture::GrTexture(GrGpu* gpu, LifeCycle lifeCycle, const GrSurfaceDesc& desc)
: INHERITED(gpu, lifeCycle, desc)
, fMipMapsStatus(kNotAllocated_MipMapsStatus) {
if (!this->isExternal() && !GrPixelConfigIsCompressed(desc.fConfig)) {
if (!this->isExternal() && !GrPixelConfigIsCompressed(desc.fConfig) &&
!desc.fTextureStorageAllocator.fAllocateTextureStorage) {
GrScratchKey key;
GrTexturePriv::ComputeScratchKey(desc, &key);
this->setScratchKey(key);

3
src/gpu/GrTextureProvider.cpp
View File

@ -39,7 +39,8 @@ GrTexture* GrTextureProvider::createTexture(const GrSurfaceDesc& desc, bool budg
!fGpu->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) {
return nullptr;
}
if (!GrPixelConfigIsCompressed(desc.fConfig)) {
if (!GrPixelConfigIsCompressed(desc.fConfig) &&
!desc.fTextureStorageAllocator.fAllocateTextureStorage) {
static const uint32_t kFlags = kExact_ScratchTextureFlag |
kNoCreate_ScratchTextureFlag;
if (GrTexture* texture = this->refScratchTexture(desc, kFlags)) {

15
src/gpu/SkGpuDevice.cpp
View File

@ -156,13 +156,15 @@ SkGpuDevice* SkGpuDevice::Create(GrRenderTarget* rt, int width, int height,
SkGpuDevice* SkGpuDevice::Create(GrContext* context, SkSurface::Budgeted budgeted,
const SkImageInfo& info, int sampleCount,
const SkSurfaceProps* props, InitContents init) {
const SkSurfaceProps* props, InitContents init,
GrTextureStorageAllocator customAllocator) {
unsigned flags;
if (!CheckAlphaTypeAndGetFlags(&info, init, &flags)) {
return nullptr;
}
SkAutoTUnref<GrRenderTarget> rt(CreateRenderTarget(context, budgeted, info, sampleCount));
SkAutoTUnref<GrRenderTarget> rt(CreateRenderTarget(
context, budgeted, info, sampleCount, customAllocator));
if (nullptr == rt) {
return nullptr;
}
@ -187,8 +189,9 @@ SkGpuDevice::SkGpuDevice(GrRenderTarget* rt, int width, int height,
fDrawContext.reset(this->context()->drawContext(rt, &this->surfaceProps()));
}
GrRenderTarget* SkGpuDevice::CreateRenderTarget(GrContext* context, SkSurface::Budgeted budgeted,
const SkImageInfo& origInfo, int sampleCount) {
GrRenderTarget* SkGpuDevice::CreateRenderTarget(
GrContext* context, SkSurface::Budgeted budgeted, const SkImageInfo& origInfo,
int sampleCount, GrTextureStorageAllocator textureStorageAllocator) {
if (kUnknown_SkColorType == origInfo.colorType() ||
origInfo.width() < 0 || origInfo.height() < 0) {
return nullptr;
@ -217,6 +220,7 @@ GrRenderTarget* SkGpuDevice::CreateRenderTarget(GrContext* context, SkSurface::B
desc.fHeight = info.height();
desc.fConfig = SkImageInfo2GrPixelConfig(info);
desc.fSampleCnt = sampleCount;
desc.fTextureStorageAllocator = textureStorageAllocator;
GrTexture* texture = context->textureProvider()->createTexture(
desc, SkToBool(budgeted), nullptr, 0);
if (nullptr == texture) {
@ -336,7 +340,8 @@ void SkGpuDevice::replaceRenderTarget(bool shouldRetainContent) {
: SkSurface::kNo_Budgeted;
SkAutoTUnref<GrRenderTarget> newRT(CreateRenderTarget(
this->context(), budgeted, this->imageInfo(), fRenderTarget->desc().fSampleCnt));
this->context(), budgeted, this->imageInfo(), fRenderTarget->desc().fSampleCnt,
fRenderTarget->desc().fTextureStorageAllocator));
if (nullptr == newRT) {
return;

6
src/gpu/SkGpuDevice.h
View File

@ -18,6 +18,7 @@
#include "GrDrawContext.h"
#include "GrContext.h"
#include "GrSurfacePriv.h"
#include "GrTypes.h"
class GrAccelData;
class GrTextureProducer;
@ -52,7 +53,8 @@ public:
* the resource cache budget. On failure, returns nullptr.
*/
static SkGpuDevice* Create(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
int sampleCount, const SkSurfaceProps*, InitContents);
int sampleCount, const SkSurfaceProps*,
InitContents, GrTextureStorageAllocator = GrTextureStorageAllocator());
~SkGpuDevice() override {}
@ -256,7 +258,7 @@ private:
bool drawDashLine(const SkPoint pts[2], const SkPaint& paint);
static GrRenderTarget* CreateRenderTarget(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
int sampleCount);
int sampleCount, GrTextureStorageAllocator);
friend class GrAtlasTextContext;
friend class SkSurface_Gpu; // for access to surfaceProps

1
src/gpu/SkGrPixelRef.cpp
View File

@ -76,6 +76,7 @@ static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorTyp
}
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT);
desc.fTextureStorageAllocator = texture->desc().fTextureStorageAllocator;
GrTexture* dst = context->textureProvider()->createTexture(desc, false, nullptr, 0);
if (nullptr == dst) {

168
src/gpu/gl/GrGLGpu.cpp
View File

@ -755,8 +755,11 @@ bool GrGLGpu::onWritePixels(GrSurface* surface,
success = this->uploadCompressedTexData(glTex->desc(), glTex->target(), buffer,
kWrite_UploadType, left, top, width, height);
} else {
success = this->uploadTexData(glTex->desc(), glTex->target(), kWrite_UploadType,
left, top, width, height, config, buffer, rowBytes);
success = this->uploadTexData(
glTex->desc(),
reinterpret_cast<GrGLTextureInfo*>(glTex->getTextureHandle()),
kWrite_UploadType, left, top, width, height, config, buffer,
rowBytes);
}
if (success) {
@ -793,8 +796,11 @@ bool GrGLGpu::onTransferPixels(GrSurface* surface,
GL_CALL(BindBuffer(glBuffer->bufferType(), glBuffer->bufferID()));
bool success = false;
success = this->uploadTexData(glTex->desc(), glTex->target(), kTransfer_UploadType,
left, top, width, height, config, buffer, rowBytes);
success = this->uploadTexData(
glTex->desc(),
reinterpret_cast<GrGLTextureInfo*>(glTex->getTextureHandle()),
kTransfer_UploadType, left, top, width, height, config, buffer,
rowBytes);
if (success) {
glTex->texturePriv().dirtyMipMaps(true);
@ -835,7 +841,7 @@ static inline GrGLenum check_alloc_error(const GrSurfaceDesc& desc,
}
bool GrGLGpu::uploadTexData(const GrSurfaceDesc& desc,
GrGLenum target,
GrGLTextureInfo* info,
UploadType uploadType,
int left, int top, int width, int height,
GrPixelConfig dataConfig,
@ -932,20 +938,30 @@ bool GrGLGpu::uploadTexData(const GrSurfaceDesc& desc,
!(0 == left && 0 == top && desc.fWidth == width && desc.fHeight == height)) {
succeeded = false;
} else {
CLEAR_ERROR_BEFORE_ALLOC(this->glInterface());
GL_ALLOC_CALL(this->glInterface(), TexImage2D(target, 0, internalFormat, desc.fWidth,
desc.fHeight, 0, externalFormat,
externalType, dataOrOffset));
GrGLenum error = check_alloc_error(desc, this->glInterface());
if (error != GR_GL_NO_ERROR) {
succeeded = false;
if (desc.fTextureStorageAllocator.fAllocateTextureStorage) {
if (dataOrOffset) {
GL_CALL(TexSubImage2D(info->fTarget,
0, // level
left, top,
width, height,
externalFormat, externalType, dataOrOffset));
}
} else {
CLEAR_ERROR_BEFORE_ALLOC(this->glInterface());
GL_ALLOC_CALL(this->glInterface(), TexImage2D(
info->fTarget, 0, internalFormat, desc.fWidth, desc.fHeight, 0, externalFormat,
externalType, dataOrOffset));
GrGLenum error = check_alloc_error(desc, this->glInterface());
if (error != GR_GL_NO_ERROR) {
succeeded = false;
}
}
}
} else {
if (swFlipY || glFlipY) {
top = desc.fHeight - (top + height);
}
GL_CALL(TexSubImage2D(target,
GL_CALL(TexSubImage2D(info->fTarget,
0, // level
left, top,
width, height,
@ -1208,52 +1224,10 @@ GrTexture* GrGLGpu::onCreateTexture(const GrSurfaceDesc& desc,
bool renderTarget = SkToBool(desc.fFlags & kRenderTarget_GrSurfaceFlag);
GrGLTexture::IDDesc idDesc;
idDesc.fInfo.fID = 0;
GL_CALL(GenTextures(1, &idDesc.fInfo.fID));
idDesc.fLifeCycle = lifeCycle;
// We only support GL_TEXTURE_2D at the moment.
idDesc.fInfo.fTarget = GR_GL_TEXTURE_2D;
if (!idDesc.fInfo.fID) {
return return_null_texture();
}
this->setScratchTextureUnit();
GL_CALL(BindTexture(idDesc.fInfo.fTarget, idDesc.fInfo.fID));
if (renderTarget && this->glCaps().textureUsageSupport()) {
// provides a hint about how this texture will be used
GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
GR_GL_TEXTURE_USAGE,
GR_GL_FRAMEBUFFER_ATTACHMENT));
}
// Some drivers like to know filter/wrap before seeing glTexImage2D. Some
// drivers have a bug where an FBO won't be complete if it includes a
// texture that is not mipmap complete (considering the filter in use).
GrGLTexture::TexParams initialTexParams;
// we only set a subset here so invalidate first
initialTexParams.invalidate();
initialTexParams.fMinFilter = GR_GL_NEAREST;
initialTexParams.fMagFilter = GR_GL_NEAREST;
initialTexParams.fWrapS = GR_GL_CLAMP_TO_EDGE;
initialTexParams.fWrapT = GR_GL_CLAMP_TO_EDGE;
GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
GR_GL_TEXTURE_MAG_FILTER,
initialTexParams.fMagFilter));
GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
GR_GL_TEXTURE_MIN_FILTER,
initialTexParams.fMinFilter));
GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
GR_GL_TEXTURE_WRAP_S,
initialTexParams.fWrapS));
GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
GR_GL_TEXTURE_WRAP_T,
initialTexParams.fWrapT));
if (!this->uploadTexData(desc, idDesc.fInfo.fTarget, kNewTexture_UploadType, 0, 0,
desc.fWidth, desc.fHeight,
desc.fConfig, srcData, rowBytes)) {
GL_CALL(DeleteTextures(1, &idDesc.fInfo.fID));
if (!this->createTextureImpl(desc, &idDesc.fInfo, renderTarget, srcData,
&initialTexParams, rowBytes)) {
return return_null_texture();
}
@ -1476,6 +1450,86 @@ int GrGLGpu::getCompatibleStencilIndex(GrPixelConfig config) {
return this->glCaps().getStencilFormatIndexForConfig(config);
}
bool GrGLGpu::createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
bool renderTarget, const void* srcData,
GrGLTexture::TexParams* initialTexParams, size_t rowBytes) {
// Some drivers like to know filter/wrap before seeing glTexImage2D. Some
// drivers have a bug where an FBO won't be complete if it includes a
// texture that is not mipmap complete (considering the filter in use).
// we only set a subset here so invalidate first
initialTexParams->invalidate();
initialTexParams->fMinFilter = GR_GL_NEAREST;
initialTexParams->fMagFilter = GR_GL_NEAREST;
initialTexParams->fWrapS = GR_GL_CLAMP_TO_EDGE;
initialTexParams->fWrapT = GR_GL_CLAMP_TO_EDGE;
if (desc.fTextureStorageAllocator.fAllocateTextureStorage) {
return this->createTextureExternalAllocatorImpl(desc, info, srcData, rowBytes);
}
info->fID = 0;
info->fTarget = GR_GL_TEXTURE_2D;
GL_CALL(GenTextures(1, &(info->fID)));
if (!info->fID) {
return false;
}
this->setScratchTextureUnit();
GL_CALL(BindTexture(info->fTarget, info->fID));
if (renderTarget && this->glCaps().textureUsageSupport()) {
// provides a hint about how this texture will be used
GL_CALL(TexParameteri(info->fTarget,
GR_GL_TEXTURE_USAGE,
GR_GL_FRAMEBUFFER_ATTACHMENT));
}
GL_CALL(TexParameteri(info->fTarget,
GR_GL_TEXTURE_MAG_FILTER,
initialTexParams->fMagFilter));
GL_CALL(TexParameteri(info->fTarget,
GR_GL_TEXTURE_MIN_FILTER,
initialTexParams->fMinFilter));
GL_CALL(TexParameteri(info->fTarget,
GR_GL_TEXTURE_WRAP_S,
initialTexParams->fWrapS));
GL_CALL(TexParameteri(info->fTarget,
GR_GL_TEXTURE_WRAP_T,
initialTexParams->fWrapT));
if (!this->uploadTexData(desc, info, kNewTexture_UploadType, 0, 0,
desc.fWidth, desc.fHeight,
desc.fConfig, srcData, rowBytes)) {
GL_CALL(DeleteTextures(1, &(info->fID)));
return false;
}
return true;
}
bool GrGLGpu::createTextureExternalAllocatorImpl(
const GrSurfaceDesc& desc, GrGLTextureInfo* info, const void* srcData, size_t rowBytes) {
switch (desc.fTextureStorageAllocator.fAllocateTextureStorage(
desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info),
desc.fWidth, desc.fHeight, desc.fConfig, srcData, desc.fOrigin)) {
case GrTextureStorageAllocator::Result::kSucceededAndUploaded:
return true;
case GrTextureStorageAllocator::Result::kFailed:
return false;
case GrTextureStorageAllocator::Result::kSucceededWithoutUpload:
break;
}
if (!this->uploadTexData(desc, info, kNewTexture_UploadType, 0, 0,
desc.fWidth, desc.fHeight,
desc.fConfig, srcData, rowBytes)) {
desc.fTextureStorageAllocator.fDeallocateTextureStorage(
desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info));
return false;
}
return true;
}
GrStencilAttachment* GrGLGpu::createStencilAttachmentForRenderTarget(const GrRenderTarget* rt,
int width,
int height) {

14
src/gpu/gl/GrGLGpu.h
View File

@ -159,6 +159,18 @@ private:
// compatible stencil format, or negative if there is no compatible stencil format.
int getCompatibleStencilIndex(GrPixelConfig config);
// If |desc.fTextureStorageAllocator| exists, use that to create the
// texture. Otherwise, create the texture directly.
// Returns whether the texture is successfully created. On success, the
// result is stored in |info|.
// The texture is populated with |srcData|, if it exists.
// The texture parameters are cached in |initialTexParams|.
bool createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
bool renderTarget, const void* srcData,
GrGLTexture::TexParams* initialTexParams, size_t rowBytes);
bool createTextureExternalAllocatorImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
const void* srcData, size_t rowBytes);
void onClear(GrRenderTarget*, const SkIRect& rect, GrColor color) override;
void onClearStencilClip(GrRenderTarget*, const SkIRect& rect, bool insideClip) override;
@ -319,7 +331,7 @@ private:
kTransfer_UploadType, // we are using a transfer buffer to copy data
};
bool uploadTexData(const GrSurfaceDesc& desc,
GrGLenum target,
GrGLTextureInfo* info,
UploadType uploadType,
int left, int top, int width, int height,
GrPixelConfig dataConfig,

8
src/gpu/gl/GrGLTexture.cpp
View File

@ -37,7 +37,13 @@ void GrGLTexture::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
void GrGLTexture::onRelease() {
if (fInfo.fID) {
if (GrGpuResource::kBorrowed_LifeCycle != fTextureIDLifecycle) {
GL_CALL(DeleteTextures(1, &fInfo.fID));
if (this->desc().fTextureStorageAllocator.fDeallocateTextureStorage) {
this->desc().fTextureStorageAllocator.fDeallocateTextureStorage(
this->desc().fTextureStorageAllocator.fCtx,
reinterpret_cast<GrBackendObject>(&fInfo));
} else {
GL_CALL(DeleteTextures(1, &fInfo.fID));
}
}
fInfo.fID = 0;
}

2
src/image/SkSurface.cpp
View File

@ -204,7 +204,7 @@ SkSurface* SkSurface::NewRenderTargetDirect(GrRenderTarget*, const SkSurfaceProp
}
SkSurface* SkSurface::NewRenderTarget(GrContext*, Budgeted, const SkImageInfo&, int,
const SkSurfaceProps*) {
const SkSurfaceProps*, GrTextureStorageAllocator) {
return nullptr;
}

8
src/image/SkSurface_Gpu.cpp
View File

@ -121,9 +121,11 @@ SkSurface* SkSurface::NewRenderTargetDirect(GrRenderTarget* target, const SkSurf
}
SkSurface* SkSurface::NewRenderTarget(GrContext* ctx, Budgeted budgeted, const SkImageInfo& info,
int sampleCount, const SkSurfaceProps* props) {
SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(ctx, budgeted, info, sampleCount, props,
SkGpuDevice::kClear_InitContents));
int sampleCount, const SkSurfaceProps* props,
GrTextureStorageAllocator customAllocator) {
SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(
ctx, budgeted, info, sampleCount, props, SkGpuDevice::kClear_InitContents,
customAllocator));
if (!device) {
return nullptr;
}