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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrContext.h"
#include "GrCaps.h"
#include "GrGpu.h"
#include "GrResourceKey.h"
#include "GrRenderTarget.h"
#include "GrSurfacePriv.h"
#include "GrTexture.h"
#include "GrTexturePriv.h"
#include "GrTypes.h"
#include "SkMath.h"
#include "SkMipMap.h"
#include "SkTypes.h"
void GrTexture::markMipMapsDirty() {
if (GrMipMapsStatus::kValid == fMipMapsStatus) {
fMipMapsStatus = GrMipMapsStatus::kDirty;
}
}
void GrTexture::markMipMapsClean() {
const bool sizeChanged = GrMipMapsStatus::kNotAllocated == fMipMapsStatus;
fMipMapsStatus = GrMipMapsStatus::kValid;
if (sizeChanged) {
// This must not be called until after changing fMipMapsStatus.
this->didChangeGpuMemorySize();
// TODO(http://skbug.com/4548) - The desc and scratch key should be
// updated to reflect the newly-allocated mipmaps.
}
}
size_t GrTexture::onGpuMemorySize() const {
return GrSurface::ComputeSize(this->config(), this->width(), this->height(), 1,
this->texturePriv().mipMapped(), false);
}
/////////////////////////////////////////////////////////////////////////////
GrTexture::GrTexture(GrGpu* gpu, const GrSurfaceDesc& desc, GrSLType samplerType,
GrSamplerState::Filter highestFilterMode,
GrMipMapsStatus mipMapsStatus)
: INHERITED(gpu, desc)
, fSamplerType(samplerType)
, fHighestFilterMode(highestFilterMode)
, fMipMapsStatus(mipMapsStatus) {
if (GrMipMapsStatus::kNotAllocated == fMipMapsStatus) {
fMaxMipMapLevel = 0;
} else {
fMaxMipMapLevel = SkMipMap::ComputeLevelCount(this->width(), this->height());
}
}
bool GrTexture::StealBackendTexture(sk_sp<GrTexture>&& texture,
GrBackendTexture* backendTexture,
SkImage::BackendTextureReleaseProc* releaseProc) {
if (!texture->surfacePriv().hasUniqueRef() || texture->surfacePriv().hasPendingIO()) {
return false;
}
if (!texture->onStealBackendTexture(backendTexture, releaseProc)) {
return false;
}
// Release any not-stolen data being held by this class.
texture->onRelease();
// Abandon the GrTexture so it can't be re-used.
texture->abandon();
return true;
}
void GrTexture::computeScratchKey(GrScratchKey* key) const {
const GrRenderTarget* rt = this->asRenderTarget();
int sampleCount = 1;
if (rt) {
sampleCount = rt->numStencilSamples();
}
GrTexturePriv::ComputeScratchKey(this->config(), this->width(), this->height(),
SkToBool(rt), sampleCount,
this->texturePriv().mipMapped(), key);
}
void GrTexturePriv::ComputeScratchKey(GrPixelConfig config, int width, int height,
bool isRenderTarget, int sampleCnt,
GrMipMapped mipMapped, GrScratchKey* key) {
static const GrScratchKey::ResourceType kType = GrScratchKey::GenerateResourceType();
uint32_t flags = isRenderTarget;
SkASSERT(width > 0);
SkASSERT(height > 0);
SkASSERT(sampleCnt > 0);
SkASSERT(1 == sampleCnt || isRenderTarget);
// make sure desc.fConfig fits in 5 bits
SkASSERT(sk_float_log2(kLast_GrPixelConfig) <= 5);
SkASSERT(static_cast<int>(config) < (1 << 5));
SkASSERT(sampleCnt < (1 << 8));
SkASSERT(flags < (1 << 10));
SkASSERT(static_cast<int>(mipMapped) <= 1);
GrScratchKey::Builder builder(key, kType, 3);
builder[0] = width;
builder[1] = height;
builder[2] = config | (static_cast<uint8_t>(mipMapped) << 5) | (sampleCnt << 6) | (flags << 14);
}
void GrTexturePriv::ComputeScratchKey(const GrSurfaceDesc& desc, GrScratchKey* key) {
// Note: the fOrigin field is not used in the scratch key
return ComputeScratchKey(desc.fConfig, desc.fWidth, desc.fHeight,
SkToBool(desc.fFlags & kRenderTarget_GrSurfaceFlag), desc.fSampleCnt,
GrMipMapped::kNo, key);
}
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