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Revert "Remove compressed (ETC1) texture support from Ganesh"

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This reverts commit ee26363aaa.

Reason for revert: Failing Google 3 roll.

Original change's description:
> Remove compressed (ETC1) texture support from Ganesh
> 
> Change-Id: If4cf286df87ea87338aba47001d90a5fcc4f2667
> Reviewed-on: https://skia-review.googlesource.com/17456
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> 

TBR=bsalomon@google.com,robertphillips@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Ie1a57187287e03600a69e374501478e93c41415c
Reviewed-on: https://skia-review.googlesource.com/17527
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This commit is contained in:
Brian Osman 2017-05-22 20:14:41 +00:00 committed by Skia Commit-Bot
parent bcd8637772
commit bc262e110a
31 changed files with 1672 additions and 68 deletions
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2
BUILD.gn
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@ -136,6 +136,7 @@ config("skia_private") {
"src/utils",
"src/utils/win",
"src/xml",
"third_party/etc1",
"third_party/gif",
]
@ -631,6 +632,7 @@ component("skia") {
"src/sfnt/SkOTTable_name.cpp",
"src/sfnt/SkOTUtils.cpp",
"src/utils/mac/SkStream_mac.cpp",
"third_party/etc1/etc1.cpp",
"third_party/gif/SkGifImageReader.cpp",
]

118
gm/etc1.cpp Normal file
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@ -0,0 +1,118 @@
/*
* 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 "gm.h"
#include "sk_tool_utils.h"
#include "SkRandom.h"
#if SK_SUPPORT_GPU
#include "etc1.h"
#include "GrContext.h"
#include "GrRenderTargetContext.h"
#include "GrRenderTargetContextPriv.h"
#include "GrTextureProxy.h"
#include "effects/GrSimpleTextureEffect.h"
#include "ops/GrNonAAFillRectOp.h"
// Basic test of Ganesh's ETC1 support
class ETC1GM : public skiagm::GM {
public:
ETC1GM() {
this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
}
protected:
SkString onShortName() override {
return SkString("etc1");
}
SkISize onISize() override {
return SkISize::Make(kTexWidth + 2*kPad, kTexHeight + 2*kPad);
}
void onOnceBeforeDraw() override {
SkBitmap bm;
SkImageInfo ii = SkImageInfo::Make(kTexWidth, kTexHeight, kRGB_565_SkColorType,
kOpaque_SkAlphaType);
bm.allocPixels(ii);
bm.erase(SK_ColorBLUE, SkIRect::MakeWH(kTexWidth, kTexHeight));
for (int y = 0; y < kTexHeight; y += 4) {
for (int x = 0; x < kTexWidth; x += 4) {
bm.erase((x+y) % 8 ? SK_ColorRED : SK_ColorGREEN, SkIRect::MakeXYWH(x, y, 4, 4));
}
}
int size = etc1_get_encoded_data_size(bm.width(), bm.height());
fETC1Data.reset(size);
unsigned char* pixels = (unsigned char*) fETC1Data.get();
if (etc1_encode_image((unsigned char*) bm.getAddr16(0, 0),
bm.width(), bm.height(), 2, bm.rowBytes(), pixels)) {
fETC1Data.reset();
}
}
void onDraw(SkCanvas* canvas) override {
GrRenderTargetContext* renderTargetContext =
canvas->internal_private_accessTopLayerRenderTargetContext();
if (!renderTargetContext) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
GrContext* context = canvas->getGrContext();
if (!context) {
return;
}
GrSurfaceDesc desc;
desc.fConfig = kETC1_GrPixelConfig;
desc.fWidth = kTexWidth;
desc.fHeight = kTexHeight;
sk_sp<GrTextureProxy> proxy = GrSurfaceProxy::MakeDeferred(context->resourceProvider(),
desc, SkBudgeted::kYes,
fETC1Data.get(), 0);
if (!proxy) {
return;
}
const SkMatrix trans = SkMatrix::MakeTrans(-kPad, -kPad);
sk_sp<GrFragmentProcessor> fp = GrSimpleTextureEffect::Make(context->resourceProvider(),
std::move(proxy),
nullptr, trans);
GrPaint grPaint;
grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
grPaint.addColorFragmentProcessor(std::move(fp));
SkRect rect = SkRect::MakeXYWH(kPad, kPad, kTexWidth, kTexHeight);
renderTargetContext->priv().testingOnly_addDrawOp(GrNonAAFillRectOp::Make(
std::move(grPaint), SkMatrix::I(), rect, nullptr, nullptr, GrAAType::kNone));
}
private:
static const int kPad = 8;
static const int kTexWidth = 16;
static const int kTexHeight = 20;
SkAutoTMalloc<char> fETC1Data;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ETC1GM;)
#endif

1
gn/gm.gni
View File

@ -117,6 +117,7 @@ gm_sources = [
"$_gm/encode-alpha-jpeg.cpp",
"$_gm/encode-platform.cpp",
"$_gm/encode-srgb.cpp",
"$_gm/etc1.cpp",
"$_gm/extractbitmap.cpp",
"$_gm/fadefilter.cpp",
"$_gm/fatpathfill.cpp",

2
include/gpu/GrCaps.h
View File

@ -45,6 +45,7 @@ public:
bool srgbWriteControl() const { return fSRGBWriteControl; }
bool discardRenderTargetSupport() const { return fDiscardRenderTargetSupport; }
bool gpuTracingSupport() const { return fGpuTracingSupport; }
bool compressedTexSubImageSupport() const { return fCompressedTexSubImageSupport; }
bool oversizedStencilSupport() const { return fOversizedStencilSupport; }
bool textureBarrierSupport() const { return fTextureBarrierSupport; }
bool sampleLocationsSupport() const { return fSampleLocationsSupport; }
@ -211,6 +212,7 @@ protected:
bool fReuseScratchTextures : 1;
bool fReuseScratchBuffers : 1;
bool fGpuTracingSupport : 1;
bool fCompressedTexSubImageSupport : 1;
bool fOversizedStencilSupport : 1;
bool fTextureBarrierSupport : 1;
bool fSampleLocationsSupport : 1;

100
include/gpu/GrTypes.h
View File

@ -298,7 +298,10 @@ enum GrPixelConfig {
* 8 bit signed integers per-channel. Byte order is b,g,r,a.
*/
kRGBA_8888_sint_GrPixelConfig,
/**
* ETC1 Compressed Data
*/
kETC1_GrPixelConfig,
/**
* Byte order is r, g, b, a. This color format is 32 bits per channel
*/
@ -334,6 +337,58 @@ static const int kGrPixelConfigCnt = kLast_GrPixelConfig + 1;
#error "SK_*32_SHIFT values must correspond to GL_BGRA or GL_RGBA format."
#endif
// Returns true if the pixel config is a GPU-specific compressed format
// representation.
static inline bool GrPixelConfigIsCompressed(GrPixelConfig config) {
switch (config) {
case kETC1_GrPixelConfig:
return true;
case kUnknown_GrPixelConfig:
case kAlpha_8_GrPixelConfig:
case kGray_8_GrPixelConfig:
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kRGBA_8888_GrPixelConfig:
case kBGRA_8888_GrPixelConfig:
case kSRGBA_8888_GrPixelConfig:
case kSBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
case kRGBA_half_GrPixelConfig:
return false;
}
SkFAIL("Invalid pixel config");
return false;
}
/** If the pixel config is compressed, return an equivalent uncompressed format. */
static inline GrPixelConfig GrMakePixelConfigUncompressed(GrPixelConfig config) {
switch (config) {
case kETC1_GrPixelConfig:
return kRGBA_8888_GrPixelConfig;
case kUnknown_GrPixelConfig:
case kAlpha_8_GrPixelConfig:
case kGray_8_GrPixelConfig:
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kRGBA_8888_GrPixelConfig:
case kBGRA_8888_GrPixelConfig:
case kSRGBA_8888_GrPixelConfig:
case kSBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
case kRGBA_half_GrPixelConfig:
SkASSERT(!GrPixelConfigIsCompressed(config));
return config;
}
SkFAIL("Invalid pixel config");
return config;
}
// Returns true if the pixel config is 32 bits per pixel
static inline bool GrPixelConfigIs8888Unorm(GrPixelConfig config) {
switch (config) {
@ -348,6 +403,7 @@ static inline bool GrPixelConfigIs8888Unorm(GrPixelConfig config) {
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kETC1_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
@ -373,6 +429,7 @@ static inline bool GrPixelConfigIsSRGB(GrPixelConfig config) {
case kRGBA_8888_GrPixelConfig:
case kBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kETC1_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
@ -401,6 +458,7 @@ static inline GrPixelConfig GrPixelConfigSwapRAndB(GrPixelConfig config) {
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kETC1_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
@ -412,6 +470,7 @@ static inline GrPixelConfig GrPixelConfigSwapRAndB(GrPixelConfig config) {
}
static inline size_t GrBytesPerPixel(GrPixelConfig config) {
SkASSERT(!GrPixelConfigIsCompressed(config));
switch (config) {
case kAlpha_8_GrPixelConfig:
case kGray_8_GrPixelConfig:
@ -433,6 +492,7 @@ static inline size_t GrBytesPerPixel(GrPixelConfig config) {
case kRG_float_GrPixelConfig:
return 8;
case kUnknown_GrPixelConfig:
case kETC1_GrPixelConfig:
return 0;
}
SkFAIL("Invalid pixel config");
@ -441,6 +501,7 @@ static inline size_t GrBytesPerPixel(GrPixelConfig config) {
static inline bool GrPixelConfigIsOpaque(GrPixelConfig config) {
switch (config) {
case kETC1_GrPixelConfig:
case kRGB_565_GrPixelConfig:
case kGray_8_GrPixelConfig:
return true;
@ -476,6 +537,7 @@ static inline bool GrPixelConfigIsAlphaOnly(GrPixelConfig config) {
case kSRGBA_8888_GrPixelConfig:
case kSBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kETC1_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kRGBA_half_GrPixelConfig:
@ -502,6 +564,7 @@ static inline bool GrPixelConfigIsFloatingPoint(GrPixelConfig config) {
case kSRGBA_8888_GrPixelConfig:
case kSBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kETC1_GrPixelConfig:
return false;
}
SkFAIL("Invalid pixel config");
@ -716,6 +779,41 @@ enum GrGLBackendState {
kALL_GrGLBackendState = 0xffff
};
/**
* Returns the data size for the given compressed pixel config
*/
static inline size_t GrCompressedFormatDataSize(GrPixelConfig config,
int width, int height) {
SkASSERT(GrPixelConfigIsCompressed(config));
switch (config) {
case kETC1_GrPixelConfig:
SkASSERT((width & 3) == 0);
SkASSERT((height & 3) == 0);
return (width >> 2) * (height >> 2) * 8;
case kUnknown_GrPixelConfig:
case kAlpha_8_GrPixelConfig:
case kGray_8_GrPixelConfig:
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kRGBA_8888_GrPixelConfig:
case kBGRA_8888_GrPixelConfig:
case kSRGBA_8888_GrPixelConfig:
case kSBGRA_8888_GrPixelConfig:
case kRGBA_8888_sint_GrPixelConfig:
case kRGBA_float_GrPixelConfig:
case kRG_float_GrPixelConfig:
case kAlpha_half_GrPixelConfig:
case kRGBA_half_GrPixelConfig:
SkFAIL("Unknown compressed pixel config");
return 4 * width * height;
}
SkFAIL("Invalid pixel config");
return 4 * width * height;
}
/**
* This value translates to reseting all the context state for any backend.
*/

3
src/gpu/GrCaps.cpp
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@ -21,6 +21,7 @@ static const char* pixel_config_name(GrPixelConfig config) {
case kSRGBA_8888_GrPixelConfig: return "SRGBA8888";
case kSBGRA_8888_GrPixelConfig: return "SBGRA8888";
case kRGBA_8888_sint_GrPixelConfig: return "RGBA8888_sint";
case kETC1_GrPixelConfig: return "ETC1";
case kRGBA_float_GrPixelConfig: return "RGBAFloat";
case kRG_float_GrPixelConfig: return "RGFloat";
case kAlpha_half_GrPixelConfig: return "AlphaHalf";
@ -39,6 +40,7 @@ GrCaps::GrCaps(const GrContextOptions& options) {
fReuseScratchTextures = true;
fReuseScratchBuffers = true;
fGpuTracingSupport = false;
fCompressedTexSubImageSupport = false;
fOversizedStencilSupport = false;
fTextureBarrierSupport = false;
fSampleLocationsSupport = false;
@ -128,6 +130,7 @@ SkString GrCaps::dump() const {
r.appendf("Reuse Scratch Textures : %s\n", gNY[fReuseScratchTextures]);
r.appendf("Reuse Scratch Buffers : %s\n", gNY[fReuseScratchBuffers]);
r.appendf("Gpu Tracing Support : %s\n", gNY[fGpuTracingSupport]);
r.appendf("Compressed Update Support : %s\n", gNY[fCompressedTexSubImageSupport]);
r.appendf("Oversized Stencil Support : %s\n", gNY[fOversizedStencilSupport]);
r.appendf("Texture Barrier Support : %s\n", gNY[fTextureBarrierSupport]);
r.appendf("Sample Locations Support : %s\n", gNY[fSampleLocationsSupport]);

3
src/gpu/GrDrawOpAtlas.cpp
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@ -172,6 +172,9 @@ GrDrawOpAtlas::GrDrawOpAtlas(GrContext* context, sk_sp<GrTextureProxy> proxy,
SkDEBUGCODE(fNumPlots = numPlotsX * numPlotsY;)
// We currently do not support compressed atlases...
SkASSERT(!GrPixelConfigIsCompressed(fProxy->config()));
// set up allocated plots
fPlotArray.reset(new sk_sp<Plot>[ numPlotsX * numPlotsY ]);

37
src/gpu/GrGpu.cpp
View File

@ -143,8 +143,24 @@ GrTexture* GrGpu::createTexture(const GrSurfaceDesc& origDesc, SkBudgeted budget
desc.fOrigin = resolve_origin(desc.fOrigin, isRT);
this->handleDirtyContext();
GrTexture* tex = this->onCreateTexture(desc, budgeted, texels);
GrTexture* tex = nullptr;
if (GrPixelConfigIsCompressed(desc.fConfig)) {
// We shouldn't be rendering into this
SkASSERT(!isRT);
SkASSERT(0 == desc.fSampleCnt);
if (!caps->npotTextureTileSupport() &&
(!SkIsPow2(desc.fWidth) || !SkIsPow2(desc.fHeight))) {
return nullptr;
}
this->handleDirtyContext();
tex = this->onCreateCompressedTexture(desc, budgeted, texels);
} else {
this->handleDirtyContext();
tex = this->onCreateTexture(desc, budgeted, texels);
}
if (tex) {
if (!caps->reuseScratchTextures() && !isRT) {
tex->resourcePriv().removeScratchKey();
@ -245,6 +261,9 @@ bool GrGpu::copySurface(GrSurface* dst,
if (GrPixelConfigIsSint(dst->config()) != GrPixelConfigIsSint(src->config())) {
return false;
}
if (GrPixelConfigIsCompressed(dst->config())) {
return false;
}
return this->onCopySurface(dst, src, srcRect, dstPoint);
}
@ -256,6 +275,11 @@ bool GrGpu::getReadPixelsInfo(GrSurface* srcSurface, int width, int height, size
SkASSERT(srcSurface);
SkASSERT(kGpuPrefersDraw_DrawPreference != *drawPreference);
// We currently do not support reading into a compressed buffer
if (GrPixelConfigIsCompressed(readConfig)) {
return false;
}
// We currently do not support reading into the packed formats 565 or 4444 as they are not
// required to have read back support on all devices and backends.
if (kRGB_565_GrPixelConfig == readConfig || kRGBA_4444_GrPixelConfig == readConfig) {
@ -287,6 +311,10 @@ bool GrGpu::getWritePixelsInfo(GrSurface* dstSurface, int width, int height,
SkASSERT(dstSurface);
SkASSERT(kGpuPrefersDraw_DrawPreference != *drawPreference);
if (GrPixelConfigIsCompressed(dstSurface->config()) && dstSurface->config() != srcConfig) {
return false;
}
if (SkToBool(dstSurface->asRenderTarget())) {
if (this->caps()->useDrawInsteadOfAllRenderTargetWrites()) {
ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference);
@ -325,6 +353,11 @@ bool GrGpu::readPixels(GrSurface* surface,
return false;
}
// We cannot read pixels into a compressed buffer
if (GrPixelConfigIsCompressed(config)) {
return false;
}
size_t bpp = GrBytesPerPixel(config);
if (!GrSurfacePriv::AdjustReadPixelParams(surface->width(), surface->height(), bpp,
&left, &top, &width, &height,

8
src/gpu/GrGpu.h
View File

@ -100,7 +100,8 @@ public:
* @param budgeted does this texture count against the resource cache budget?
* @param texels array of mipmap levels containing texel data to load.
* Each level begins with full-size palette data for paletted textures.
* It contains width*height texels. If there is only one
* For compressed formats the level contains the compressed pixel data.
* Otherwise, it contains width*height texels. If there is only one
* element and it contains nullptr fPixels, texture data is
* uninitialized.
* @return The texture object if successful, otherwise nullptr.
@ -545,10 +546,13 @@ private:
// overridden by backend-specific derived class to create objects.
// Texture size and sample size will have already been validated in base class before
// onCreateTexture is called.
// onCreateTexture/CompressedTexture are called.
virtual GrTexture* onCreateTexture(const GrSurfaceDesc& desc,
SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) = 0;
virtual GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc,
SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) = 0;
virtual sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&,
GrSurfaceOrigin,

34
src/gpu/GrResourceProvider.cpp
View File

@ -157,15 +157,17 @@ sk_sp<GrTextureProxy> GrResourceProvider::createTextureProxy(const GrSurfaceDesc
GrContext* context = fGpu->getContext();
SkImageInfo srcInfo;
if (!GrPixelConfigIsCompressed(desc.fConfig)) {
SkImageInfo srcInfo;
if (make_info(desc.fWidth, desc.fHeight, desc.fConfig, &srcInfo)) {
sk_sp<GrTexture> tex = this->getExactScratch(desc, budgeted, 0);
sk_sp<GrSurfaceContext> sContext =
context->contextPriv().makeWrappedSurfaceContext(std::move(tex));
if (sContext) {
if (sContext->writePixels(srcInfo, mipLevel.fPixels, mipLevel.fRowBytes, 0, 0)) {
return sContext->asTextureProxyRef();
if (make_info(desc.fWidth, desc.fHeight, desc.fConfig, &srcInfo)) {
sk_sp<GrTexture> tex = this->getExactScratch(desc, budgeted, 0);
sk_sp<GrSurfaceContext> sContext =
context->contextPriv().makeWrappedSurfaceContext(std::move(tex));
if (sContext) {
if (sContext->writePixels(srcInfo, mipLevel.fPixels, mipLevel.fRowBytes, 0, 0)) {
return sContext->asTextureProxyRef();
}
}
}
}
@ -190,12 +192,14 @@ sk_sp<GrTexture> GrResourceProvider::createTexture(const GrSurfaceDesc& desc, Sk
return nullptr;
}
sk_sp<GrTexture> tex = this->getExactScratch(desc, budgeted, flags);
if (tex) {
return tex;
if (!GrPixelConfigIsCompressed(desc.fConfig)) {
sk_sp<GrTexture> tex = this->getExactScratch(desc, budgeted, flags);
if (tex) {
return tex;
}
}
tex.reset(fGpu->createTexture(desc, budgeted));
sk_sp<GrTexture> tex(fGpu->createTexture(desc, budgeted));
return tex;
}
@ -207,6 +211,11 @@ GrTexture* GrResourceProvider::createApproxTexture(const GrSurfaceDesc& desc, ui
return nullptr;
}
// Currently we don't recycle compressed textures as scratch.
if (GrPixelConfigIsCompressed(desc.fConfig)) {
return nullptr;
}
if (!validate_desc(desc, *fCaps)) {
return nullptr;
}
@ -217,6 +226,7 @@ GrTexture* GrResourceProvider::createApproxTexture(const GrSurfaceDesc& desc, ui
GrTexture* GrResourceProvider::refScratchTexture(const GrSurfaceDesc& inDesc, uint32_t flags) {
ASSERT_SINGLE_OWNER
SkASSERT(!this->isAbandoned());
SkASSERT(!GrPixelConfigIsCompressed(inDesc.fConfig));
SkASSERT(validate_desc(inDesc, *fCaps));
SkTCopyOnFirstWrite<GrSurfaceDesc> desc(inDesc);

3
src/gpu/GrShaderCaps.cpp
View File

@ -213,12 +213,13 @@ void GrShaderCaps::initSamplerPrecisionTable() {
table[kSRGBA_8888_GrPixelConfig] = lowp;
table[kSBGRA_8888_GrPixelConfig] = lowp;
table[kRGBA_8888_sint_GrPixelConfig] = lowp;
table[kETC1_GrPixelConfig] = lowp;
table[kRGBA_float_GrPixelConfig] = kHigh_GrSLPrecision;
table[kRG_float_GrPixelConfig] = kHigh_GrSLPrecision;
table[kAlpha_half_GrPixelConfig] = mediump;
table[kRGBA_half_GrPixelConfig] = mediump;
GR_STATIC_ASSERT(14 == kGrPixelConfigCnt);
GR_STATIC_ASSERT(15 == kGrPixelConfigCnt);
}
}

15
src/gpu/GrSurface.cpp
View File

@ -29,6 +29,7 @@ size_t GrSurface::WorstCaseSize(const GrSurfaceDesc& desc, bool useNextPow2) {
colorValuesPerPixel += 1;
}
SkASSERT(kUnknown_GrPixelConfig != desc.fConfig);
SkASSERT(!GrPixelConfigIsCompressed(desc.fConfig));
size_t colorBytes = (size_t) width * height * GrBytesPerPixel(desc.fConfig);
// This would be a nice assert to have (i.e., we aren't creating 0 width/height surfaces).
@ -38,7 +39,11 @@ size_t GrSurface::WorstCaseSize(const GrSurfaceDesc& desc, bool useNextPow2) {
size = colorValuesPerPixel * colorBytes;
size += colorBytes/3; // in case we have to mipmap
} else {
size = (size_t) width * height * GrBytesPerPixel(desc.fConfig);
if (GrPixelConfigIsCompressed(desc.fConfig)) {
size = GrCompressedFormatDataSize(desc.fConfig, width, height);
} else {
size = (size_t) width * height * GrBytesPerPixel(desc.fConfig);
}
size += size/3; // in case we have to mipmap
}
@ -52,11 +57,17 @@ size_t GrSurface::ComputeSize(GrPixelConfig config,
int colorSamplesPerPixel,
bool hasMIPMaps,
bool useNextPow2) {
size_t colorSize;
width = useNextPow2 ? GrNextPow2(width) : width;
height = useNextPow2 ? GrNextPow2(height) : height;
SkASSERT(kUnknown_GrPixelConfig != config);
size_t colorSize = (size_t)width * height * GrBytesPerPixel(config);
if (GrPixelConfigIsCompressed(config)) {
colorSize = GrCompressedFormatDataSize(config, width, height);
} else {
colorSize = (size_t)width * height * GrBytesPerPixel(config);
}
SkASSERT(colorSize > 0);
size_t finalSize = colorSamplesPerPixel * colorSize;

12
src/gpu/GrSurfaceProxy.cpp
View File

@ -136,6 +136,18 @@ sk_sp<GrTextureProxy> GrSurfaceProxy::MakeDeferred(GrResourceProvider* resourceP
// TODO: move this logic into GrResourceProvider!
// TODO: share this testing code with check_texture_creation_params
if (GrPixelConfigIsCompressed(desc.fConfig)) {
if (SkBackingFit::kApprox == fit || kBottomLeft_GrSurfaceOrigin == desc.fOrigin) {
// We don't allow scratch compressed textures and, apparently can't Y-flip compressed
// textures
return nullptr;
}
if (!caps->npotTextureTileSupport() && (!SkIsPow2(desc.fWidth) || !SkIsPow2(desc.fHeight))) {
return nullptr;
}
}
if (!caps->isConfigTexturable(desc.fConfig)) {
return nullptr;
}

16
src/gpu/GrTexture.cpp
View File

@ -76,14 +76,16 @@ GrTexture::GrTexture(GrGpu* gpu, const GrSurfaceDesc& desc, GrSLType samplerType
}
void GrTexture::computeScratchKey(GrScratchKey* key) const {
const GrRenderTarget* rt = this->asRenderTarget();
int sampleCount = 0;
if (rt) {
sampleCount = rt->numStencilSamples();
if (!GrPixelConfigIsCompressed(this->config())) {
const GrRenderTarget* rt = this->asRenderTarget();
int sampleCount = 0;
if (rt) {
sampleCount = rt->numStencilSamples();
}
GrTexturePriv::ComputeScratchKey(this->config(), this->width(), this->height(),
this->origin(), SkToBool(rt), sampleCount,
this->texturePriv().hasMipMaps(), key);
}
GrTexturePriv::ComputeScratchKey(this->config(), this->width(), this->height(),
this->origin(), SkToBool(rt), sampleCount,
this->texturePriv().hasMipMaps(), key);
}
void GrTexturePriv::ComputeScratchKey(GrPixelConfig config, int width, int height,

4
src/gpu/GrTextureProducer.cpp
View File

@ -23,10 +23,12 @@ sk_sp<GrTextureProxy> GrTextureProducer::CopyOnGpu(GrContext* context,
SkASSERT(!subset || !subset->isEmpty());
SkASSERT(context);
GrPixelConfig config = GrMakePixelConfigUncompressed(inputProxy->config());
const SkRect dstRect = SkRect::MakeIWH(copyParams.fWidth, copyParams.fHeight);
sk_sp<GrRenderTargetContext> copyRTC = context->makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kExact, dstRect.width(), dstRect.height(), inputProxy->config(), nullptr);
SkBackingFit::kExact, dstRect.width(), dstRect.height(), config, nullptr);
if (!copyRTC) {
return nullptr;
}

2
src/gpu/SkGr.h
View File

@ -209,7 +209,7 @@ sk_sp<GrTextureProxy> GrRefCachedBitmapTextureProxy(GrContext*,
/**
* Creates a new texture for the bitmap. Does not concern itself with cache keys or texture params.
* The bitmap must have CPU-accessible pixels. Attempts to take advantage of faster paths for
* yuv planes.
* compressed textures and yuv planes.
*/
sk_sp<GrTextureProxy> GrUploadBitmapToTextureProxy(GrResourceProvider*, const SkBitmap&,
SkColorSpace* dstColorSpace);

48
src/gpu/gl/GrGLCaps.cpp
View File

@ -1344,6 +1344,15 @@ bool GrGLCaps::getTexImageFormats(GrPixelConfig surfaceConfig, GrPixelConfig ext
return true;
}
bool GrGLCaps::getCompressedTexImageFormats(GrPixelConfig surfaceConfig,
GrGLenum* internalFormat) const {
if (!GrPixelConfigIsCompressed(surfaceConfig)) {
return false;
}
*internalFormat = fConfigTable[surfaceConfig].fFormats.fInternalFormatTexImage;
return true;
}
bool GrGLCaps::getReadPixelsFormat(GrPixelConfig surfaceConfig, GrPixelConfig externalConfig,
GrGLenum* externalFormat, GrGLenum* externalType) const {
if (!this->getExternalFormat(surfaceConfig, externalConfig, kOther_ExternalFormatUsage,
@ -1354,6 +1363,9 @@ bool GrGLCaps::getReadPixelsFormat(GrPixelConfig surfaceConfig, GrPixelConfig ex
}
bool GrGLCaps::getRenderbufferFormat(GrPixelConfig config, GrGLenum* internalFormat) const {
if (GrPixelConfigIsCompressed(config)) {
return false;
}
*internalFormat = fConfigTable[config].fFormats.fInternalFormatRenderbuffer;
return true;
}
@ -1362,6 +1374,9 @@ bool GrGLCaps::getExternalFormat(GrPixelConfig surfaceConfig, GrPixelConfig memo
ExternalFormatUsage usage, GrGLenum* externalFormat,
GrGLenum* externalType) const {
SkASSERT(externalFormat && externalType);
if (GrPixelConfigIsCompressed(memoryConfig)) {
return false;
}
bool surfaceIsAlphaOnly = GrPixelConfigIsAlphaOnly(surfaceConfig);
bool memoryIsAlphaOnly = GrPixelConfigIsAlphaOnly(memoryConfig);
@ -1911,6 +1926,39 @@ void GrGLCaps::initConfigTable(const GrContextOptions& contextOptions,
}
fConfigTable[kRGBA_half_GrPixelConfig].fSwizzle = GrSwizzle::RGBA();
// Compressed texture support
// glCompressedTexImage2D is available on all OpenGL ES devices. It is available on standard
// OpenGL after version 1.3. We'll assume at least that level of OpenGL support.
// TODO: Fix command buffer bindings and remove this.
fCompressedTexSubImageSupport = SkToBool(gli->fFunctions.fCompressedTexSubImage2D);
// No sized/unsized internal format distinction for compressed formats, no external format.
// Below we set the external formats and types to 0.
{
fConfigTable[kETC1_GrPixelConfig].fFormats.fBaseInternalFormat = GR_GL_COMPRESSED_ETC1_RGB8;
fConfigTable[kETC1_GrPixelConfig].fFormats.fSizedInternalFormat =
GR_GL_COMPRESSED_ETC1_RGB8;
fConfigTable[kETC1_GrPixelConfig].fFormats.fExternalFormat[kOther_ExternalFormatUsage] = 0;
fConfigTable[kETC1_GrPixelConfig].fFormats.fExternalType = 0;
fConfigTable[kETC1_GrPixelConfig].fFormatType = kNormalizedFixedPoint_FormatType;
if (kGL_GrGLStandard == standard) {
if (version >= GR_GL_VER(4, 3) || ctxInfo.hasExtension("GL_ARB_ES3_compatibility")) {
fConfigTable[kETC1_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag;
}
} else {
if (version >= GR_GL_VER(3, 0) ||
ctxInfo.hasExtension("GL_OES_compressed_ETC1_RGB8_texture") ||
// ETC2 is a superset of ETC1, so we can just check for that, too.
(ctxInfo.hasExtension("GL_OES_compressed_ETC2_RGB8_texture") &&
ctxInfo.hasExtension("GL_OES_compressed_ETC2_RGBA8_texture"))) {
fConfigTable[kETC1_GrPixelConfig].fFlags = ConfigInfo::kTextureable_Flag;
}
}
fConfigTable[kETC1_GrPixelConfig].fSwizzle = GrSwizzle::RGBA();
}
// Bulk populate the texture internal/external formats here and then deal with exceptions below.
// ES 2.0 requires that the internal/external formats match.

2
src/gpu/gl/GrGLCaps.h
View File

@ -153,6 +153,8 @@ public:
GrGLenum* internalFormat, GrGLenum* externalFormat,
GrGLenum* externalType) const;
bool getCompressedTexImageFormats(GrPixelConfig surfaceConfig, GrGLenum* internalFormat) const;
bool getReadPixelsFormat(GrPixelConfig surfaceConfig, GrPixelConfig externalConfig,
GrGLenum* externalFormat, GrGLenum* externalType) const;

265
src/gpu/gl/GrGLGpu.cpp
View File

@ -662,6 +662,10 @@ bool GrGLGpu::onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
GrPixelConfig srcConfig,
DrawPreference* drawPreference,
WritePixelTempDrawInfo* tempDrawInfo) {
if (GrPixelConfigIsCompressed(dstSurface->config())) {
return false;
}
// This subclass only allows writes to textures. If the dst is not a texture we have to draw
// into it. We could use glDrawPixels on GLs that have it, but we don't today.
if (!dstSurface->asTexture()) {
@ -761,9 +765,20 @@ bool GrGLGpu::onWritePixels(GrSurface* surface,
this->setScratchTextureUnit();
GL_CALL(BindTexture(glTex->target(), glTex->textureID()));
return this->uploadTexData(glTex->config(), glTex->width(), glTex->height(),
glTex->origin(), glTex->target(), kWrite_UploadType,
left, top, width, height, config, texels);
bool success = false;
if (GrPixelConfigIsCompressed(glTex->config())) {
// We check that config == desc.fConfig in GrGLGpu::canWriteTexturePixels()
SkASSERT(config == glTex->config());
success = this->uploadCompressedTexData(glTex->config(), glTex->width(), glTex->height(),
glTex->origin(), glTex->target(), texels,
kWrite_UploadType, left, top, width, height);
} else {
success = this->uploadTexData(glTex->config(), glTex->width(), glTex->height(),
glTex->origin(), glTex->target(), kWrite_UploadType,
left, top, width, height, config, texels);
}
return success;
}
bool GrGLGpu::onTransferPixels(GrSurface* surface,
@ -776,6 +791,11 @@ bool GrGLGpu::onTransferPixels(GrSurface* surface,
return false;
}
// For the moment, can't transfer compressed data
if (GrPixelConfigIsCompressed(glTex->config())) {
return false;
}
this->setScratchTextureUnit();
GL_CALL(BindTexture(glTex->target(), glTex->textureID()));
@ -798,6 +818,7 @@ bool GrGLGpu::onTransferPixels(GrSurface* surface,
// For GL_[UN]PACK_ALIGNMENT.
static inline GrGLint config_alignment(GrPixelConfig config) {
SkASSERT(!GrPixelConfigIsCompressed(config));
switch (config) {
case kAlpha_8_GrPixelConfig:
case kGray_8_GrPixelConfig:
@ -816,6 +837,7 @@ static inline GrGLint config_alignment(GrPixelConfig config) {
case kRG_float_GrPixelConfig:
return 4;
case kUnknown_GrPixelConfig:
case kETC1_GrPixelConfig:
return 0;
}
SkFAIL("Invalid pixel config");
@ -836,16 +858,16 @@ static inline GrGLint config_alignment(GrPixelConfig config) {
* @param baseWidth The width of the texture's base mipmap level
* @param baseHeight The height of the texture's base mipmap level
*/
static bool allocate_and_populate_texture(GrPixelConfig config,
const GrGLInterface& interface,
const GrGLCaps& caps,
GrGLenum target,
GrGLenum internalFormat,
GrGLenum internalFormatForTexStorage,
GrGLenum externalFormat,
GrGLenum externalType,
const SkTArray<GrMipLevel>& texels,
int baseWidth, int baseHeight) {
static bool allocate_and_populate_uncompressed_texture(GrPixelConfig config,
const GrGLInterface& interface,
const GrGLCaps& caps,
GrGLenum target,
GrGLenum internalFormat,
GrGLenum internalFormatForTexStorage,
GrGLenum externalFormat,
GrGLenum externalType,
const SkTArray<GrMipLevel>& texels,
int baseWidth, int baseHeight) {
CLEAR_ERROR_BEFORE_ALLOC(&interface);
bool useTexStorage = caps.isConfigTexSupportEnabled(config);
@ -928,6 +950,97 @@ static bool allocate_and_populate_texture(GrPixelConfig config,
return true;
}
/**
* Creates storage space for the texture and fills it with texels.
*
* @param config Compressed pixel config of the texture.
* @param desc The surface descriptor for the texture being created.
* @param interface The GL interface in use.
* @param caps The capabilities of the GL device.
* @param internalFormat The data format used for the internal storage of the texture.
* @param texels The texel data of the texture being created.
*/
static bool allocate_and_populate_compressed_texture(GrPixelConfig config,
const GrGLInterface& interface,
const GrGLCaps& caps,
GrGLenum target, GrGLenum internalFormat,
const SkTArray<GrMipLevel>& texels,
int baseWidth, int baseHeight) {
CLEAR_ERROR_BEFORE_ALLOC(&interface);
bool useTexStorage = caps.isConfigTexSupportEnabled(config);
// We can only use TexStorage if we know we will not later change the storage requirements.
// This means if we may later want to add mipmaps, we cannot use TexStorage.
// Right now, we cannot know if we will later add mipmaps or not.
// The only time we can use TexStorage is when we already have the
// mipmaps.
useTexStorage &= texels.count() > 1;
if (useTexStorage) {
// We never resize or change formats of textures.
GL_ALLOC_CALL(&interface,
TexStorage2D(target,
texels.count(),
internalFormat,
baseWidth, baseHeight));
GrGLenum error = CHECK_ALLOC_ERROR(&interface);
if (error != GR_GL_NO_ERROR) {
return false;
} else {
for (int currentMipLevel = 0; currentMipLevel < texels.count(); currentMipLevel++) {
const void* currentMipData = texels[currentMipLevel].fPixels;
if (currentMipData == nullptr) {
continue;
}
int twoToTheMipLevel = 1 << currentMipLevel;
int currentWidth = SkTMax(1, baseWidth / twoToTheMipLevel);
int currentHeight = SkTMax(1, baseHeight / twoToTheMipLevel);
// Make sure that the width and height that we pass to OpenGL
// is a multiple of the block size.
size_t dataSize = GrCompressedFormatDataSize(config, currentWidth, currentHeight);
GR_GL_CALL(&interface, CompressedTexSubImage2D(target,
currentMipLevel,
0, // left
0, // top
currentWidth,
currentHeight,
internalFormat,
SkToInt(dataSize),
currentMipData));
}
}
} else {
for (int currentMipLevel = 0; currentMipLevel < texels.count(); currentMipLevel++) {
int twoToTheMipLevel = 1 << currentMipLevel;
int currentWidth = SkTMax(1, baseWidth / twoToTheMipLevel);
int currentHeight = SkTMax(1, baseHeight / twoToTheMipLevel);
// Make sure that the width and height that we pass to OpenGL
// is a multiple of the block size.
size_t dataSize = GrCompressedFormatDataSize(config, baseWidth, baseHeight);
GL_ALLOC_CALL(&interface,
CompressedTexImage2D(target,
currentMipLevel,
internalFormat,
currentWidth,
currentHeight,
0, // border
SkToInt(dataSize),
texels[currentMipLevel].fPixels));
GrGLenum error = CHECK_ALLOC_ERROR(&interface);
if (error != GR_GL_NO_ERROR) {
return false;
}
}
}
return true;
}
/**
* After a texture is created, any state which was altered during its creation
* needs to be restored.
@ -952,6 +1065,9 @@ bool GrGLGpu::uploadTexData(GrPixelConfig texConfig, int texWidth, int texHeight
GrSurfaceOrigin texOrigin, GrGLenum target, UploadType uploadType,
int left, int top, int width, int height, GrPixelConfig dataConfig,
const SkTArray<GrMipLevel>& texels) {
// If we're uploading compressed data then we should be using uploadCompressedTexData
SkASSERT(!GrPixelConfigIsCompressed(dataConfig));
SkASSERT(this->caps()->isConfigTexturable(texConfig));
// texels is const.
@ -1106,7 +1222,7 @@ bool GrGLGpu::uploadTexData(GrPixelConfig texConfig, int texWidth, int texHeight
bool succeeded = true;
if (kNewTexture_UploadType == uploadType) {
if (0 == left && 0 == top && texWidth == width && texHeight == height) {
succeeded = allocate_and_populate_texture(
succeeded = allocate_and_populate_uncompressed_texture(
texConfig, *interface, caps, target, internalFormat,
internalFormatForTexStorage, externalFormat, externalType, texelsShallowCopy,
width, height);
@ -1138,6 +1254,75 @@ bool GrGLGpu::uploadTexData(GrPixelConfig texConfig, int texWidth, int texHeight
return succeeded;
}
// TODO: This function is using a lot of wonky semantics like, if width == -1
// then set width = desc.fWdith ... blah. A better way to do it might be to
// create a CompressedTexData struct that takes a desc/ptr and figures out
// the proper upload semantics. Then users can construct this function how they
// see fit if they want to go against the "standard" way to do it.
bool GrGLGpu::uploadCompressedTexData(GrPixelConfig config, int texWidth, int texHeight,
GrSurfaceOrigin texOrigin, GrGLenum target,
const SkTArray<GrMipLevel>& texels, UploadType uploadType,
int left, int top, int width, int height) {
SkASSERT(this->caps()->isConfigTexturable(config));
// No support for software flip y, yet...
SkASSERT(kBottomLeft_GrSurfaceOrigin != texOrigin);
const GrGLInterface* interface = this->glInterface();
const GrGLCaps& caps = this->glCaps();
if (-1 == width) {
width = texWidth;
}
#ifdef SK_DEBUG
else {
SkASSERT(width <= texWidth);
}
#endif
if (-1 == height) {
height = texHeight;
}
#ifdef SK_DEBUG
else {
SkASSERT(height <= texHeight);
}
#endif
// We only need the internal format for compressed 2D textures.
GrGLenum internalFormat;
if (!caps.getCompressedTexImageFormats(config, &internalFormat)) {
return false;
}
if (kNewTexture_UploadType == uploadType) {
return allocate_and_populate_compressed_texture(config, *interface, caps, target,
internalFormat, texels, width, height);
} else {
for (int currentMipLevel = 0; currentMipLevel < texels.count(); currentMipLevel++) {
SkASSERT(texels[currentMipLevel].fPixels || kTransfer_UploadType == uploadType);
int twoToTheMipLevel = 1 << currentMipLevel;
int currentWidth = SkTMax(1, width / twoToTheMipLevel);
int currentHeight = SkTMax(1, height / twoToTheMipLevel);
// Make sure that the width and height that we pass to OpenGL
// is a multiple of the block size.
size_t dataSize = GrCompressedFormatDataSize(config, currentWidth, currentHeight);
GL_CALL(CompressedTexSubImage2D(target,
currentMipLevel,
left, top,
currentWidth,
currentHeight,
internalFormat,
SkToInt(dataSize),
texels[currentMipLevel].fPixels));
}
}
return true;
}
static bool renderbuffer_storage_msaa(const GrGLContext& ctx,
int sampleCount,
GrGLenum format,
@ -1292,6 +1477,18 @@ static size_t as_size_t(int x) {
}
#endif
static GrGLTexture::IDDesc generate_gl_texture(const GrGLInterface* interface) {
GrGLTexture::IDDesc idDesc;
idDesc.fInfo.fID = 0;
GR_GL_CALL(interface, GenTextures(1, &idDesc.fInfo.fID));
idDesc.fOwnership = GrBackendObjectOwnership::kOwned;
// When we create the texture, we only
// create GL_TEXTURE_2D at the moment.
// External clients can do something different.
idDesc.fInfo.fTarget = GR_GL_TEXTURE_2D;
return idDesc;
}
static void set_initial_texture_params(const GrGLInterface* interface,
const GrGLTextureInfo& info,
GrGLTexture::TexParams* initialTexParams) {
@ -1364,6 +1561,41 @@ GrTexture* GrGLGpu::onCreateTexture(const GrSurfaceDesc& desc,
return tex;
}
GrTexture* GrGLGpu::onCreateCompressedTexture(const GrSurfaceDesc& desc,
SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) {
// Make sure that we're not flipping Y.
if (kBottomLeft_GrSurfaceOrigin == desc.fOrigin) {
return return_null_texture();
}
GrGLTexture::IDDesc idDesc = generate_gl_texture(this->glInterface());
if (!idDesc.fInfo.fID) {
return return_null_texture();
}
this->setScratchTextureUnit();
GL_CALL(BindTexture(idDesc.fInfo.fTarget, idDesc.fInfo.fID));
GrGLTexture::TexParams initialTexParams;
set_initial_texture_params(this->glInterface(), idDesc.fInfo, &initialTexParams);
if (!this->uploadCompressedTexData(desc.fConfig, desc.fWidth, desc.fHeight, desc.fOrigin,
idDesc.fInfo.fTarget, texels)) {
GL_CALL(DeleteTextures(1, &idDesc.fInfo.fID));
return return_null_texture();
}
GrGLTexture* tex;
tex = new GrGLTexture(this, budgeted, desc, idDesc);
tex->setCachedTexParams(initialTexParams, this->getResetTimestamp());
#ifdef TRACE_TEXTURE_CREATION
SkDebugf("--- new compressed texture [%d] size=(%d %d) config=%d\n",
idDesc.fInfo.fID, desc.fWidth, desc.fHeight, desc.fConfig);
#endif
return tex;
}
namespace {
const GrGLuint kUnknownBitCount = GrGLStencilAttachment::kUnknownBitCount;
@ -2795,7 +3027,7 @@ void GrGLGpu::bindTexture(int unitIdx, const GrSamplerParams& params, bool allow
GrSamplerParams::FilterMode filterMode = params.filterMode();
if (GrSamplerParams::kMipMap_FilterMode == filterMode) {
if (!this->caps()->mipMapSupport()) {
if (!this->caps()->mipMapSupport() || GrPixelConfigIsCompressed(texture->config())) {
filterMode = GrSamplerParams::kBilerp_FilterMode;
}
}
@ -2941,7 +3173,7 @@ void GrGLGpu::generateMipmaps(const GrSamplerParams& params, bool allowSRGBInput
GrSamplerParams::FilterMode filterMode = params.filterMode();
if (GrSamplerParams::kMipMap_FilterMode == filterMode) {
if (!this->caps()->mipMapSupport()) {
if (!this->caps()->mipMapSupport() || GrPixelConfigIsCompressed(texture->config())) {
filterMode = GrSamplerParams::kBilerp_FilterMode;
}
}
@ -3163,6 +3395,7 @@ static inline bool can_copy_texsubimage(const GrSurface* dst,
// Check that we could wrap the source in an FBO, that the dst is TEXTURE_2D, that no mirroring
// is required.
if (gpu->glCaps().canConfigBeFBOColorAttachment(src->config()) &&
!GrPixelConfigIsCompressed(src->config()) &&
(!srcTex || srcTex->target() == GR_GL_TEXTURE_2D) && dstTex->target() == GR_GL_TEXTURE_2D &&
dst->origin() == src->origin()) {
return true;

15
src/gpu/gl/GrGLGpu.h
View File

@ -163,6 +163,9 @@ private:
GrTexture* onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) override;
GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc,
SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) override;
GrBuffer* onCreateBuffer(size_t size, GrBufferType intendedType, GrAccessPattern,
const void* data) override;
@ -363,6 +366,18 @@ private:
int top, int width, int height, GrPixelConfig dataConfig,
const SkTArray<GrMipLevel>& texels);
// helper for onCreateCompressedTexture. If width and height are
// set to -1, then this function will use desc.fWidth and desc.fHeight
// for the size of the data. The isNewTexture flag should be set to true
// whenever a new texture needs to be created. Otherwise, we assume that
// the texture is already in GPU memory and that it's going to be updated
// with new data.
bool uploadCompressedTexData(GrPixelConfig texAndDataConfig, int texWidth, int texHeight,
GrSurfaceOrigin texOrigin, GrGLenum target,
const SkTArray<GrMipLevel>& texels,
UploadType uploadType = kNewTexture_UploadType, int left = 0,
int top = 0, int width = -1, int height = -1);
bool createRenderTargetObjects(const GrSurfaceDesc&, const GrGLTextureInfo& texInfo,
GrGLRenderTarget::IDDesc*);

3
src/gpu/ops/GrCopySurfaceOp.cpp
View File

@ -67,6 +67,9 @@ std::unique_ptr<GrOp> GrCopySurfaceOp::Make(GrResourceProvider* resourceProvider
if (GrPixelConfigIsSint(dstProxy->config()) != GrPixelConfigIsSint(srcProxy->config())) {
return nullptr;
}
if (GrPixelConfigIsCompressed(dstProxy->config())) {
return nullptr;
}
SkIRect clippedSrcRect;
SkIPoint clippedDstPoint;
// If the rect is outside the srcProxy or dstProxy then we've already succeeded.

6
src/gpu/vk/GrVkCaps.cpp
View File

@ -31,6 +31,7 @@ GrVkCaps::GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface*
fDiscardRenderTargetSupport = true;
fReuseScratchTextures = true; //TODO: figure this out
fGpuTracingSupport = false; //TODO: figure this out
fCompressedTexSubImageSupport = false; //TODO: figure this out
fOversizedStencilSupport = false; //TODO: figure this out
fUseDrawInsteadOfClear = false;
@ -306,6 +307,11 @@ void GrVkCaps::initConfigTable(const GrVkInterface* interface, VkPhysicalDevice
fConfigTable[i].init(interface, physDev, format);
}
}
// We currently do not support compressed textures in Vulkan
const uint16_t kFlagsToRemove = ConfigInfo::kTextureable_Flag|ConfigInfo::kRenderable_Flag;
fConfigTable[kETC1_GrPixelConfig].fOptimalFlags &= ~kFlagsToRemove;
fConfigTable[kETC1_GrPixelConfig].fLinearFlags &= ~kFlagsToRemove;
}
void GrVkCaps::ConfigInfo::InitConfigFlags(VkFormatFeatureFlags vkFlags, uint16_t* flags) {

65
src/gpu/vk/GrVkGpu.cpp
View File

@ -315,6 +315,10 @@ GrBuffer* GrVkGpu::onCreateBuffer(size_t size, GrBufferType type, GrAccessPatter
bool GrVkGpu::onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height,
GrPixelConfig srcConfig, DrawPreference* drawPreference,
WritePixelTempDrawInfo* tempDrawInfo) {
if (GrPixelConfigIsCompressed(dstSurface->config())) {
return false;
}
GrRenderTarget* renderTarget = dstSurface->asRenderTarget();
// Start off assuming no swizzling
@ -375,32 +379,43 @@ bool GrVkGpu::onWritePixels(GrSurface* surface,
}
bool success = false;
bool linearTiling = vkTex->isLinearTiled();
if (linearTiling) {
if (texels.count() > 1) {
SkDebugf("Can't upload mipmap data to linear tiled texture");
return false;
}
if (VK_IMAGE_LAYOUT_PREINITIALIZED != vkTex->currentLayout()) {
// Need to change the layout to general in order to perform a host write
vkTex->setImageLayout(this,
VK_IMAGE_LAYOUT_GENERAL,
VK_ACCESS_HOST_WRITE_BIT,
VK_PIPELINE_STAGE_HOST_BIT,
false);
this->submitCommandBuffer(kForce_SyncQueue);
}
success = this->uploadTexDataLinear(vkTex, left, top, width, height, config,
texels.begin()->fPixels, texels.begin()->fRowBytes);
if (GrPixelConfigIsCompressed(vkTex->config())) {
// We check that config == desc.fConfig in GrGpu::getWritePixelsInfo()
SkASSERT(config == vkTex->config());
// TODO: add compressed texture support
// delete the following two lines and uncomment the two after that when ready
vkTex->unref();
return false;
//success = this->uploadCompressedTexData(vkTex->desc(), buffer, false, left, top, width,
// height);
} else {
int newMipLevels = texels.count();
int currentMipLevels = vkTex->texturePriv().maxMipMapLevel() + 1;
if (newMipLevels > currentMipLevels) {
if (!vkTex->reallocForMipmap(this, newMipLevels)) {
bool linearTiling = vkTex->isLinearTiled();
if (linearTiling) {
if (texels.count() > 1) {
SkDebugf("Can't upload mipmap data to linear tiled texture");
return false;
}
if (VK_IMAGE_LAYOUT_PREINITIALIZED != vkTex->currentLayout()) {
// Need to change the layout to general in order to perform a host write
vkTex->setImageLayout(this,
VK_IMAGE_LAYOUT_GENERAL,
VK_ACCESS_HOST_WRITE_BIT,
VK_PIPELINE_STAGE_HOST_BIT,
false);
this->submitCommandBuffer(kForce_SyncQueue);
}
success = this->uploadTexDataLinear(vkTex, left, top, width, height, config,
texels.begin()->fPixels, texels.begin()->fRowBytes);
} else {
int newMipLevels = texels.count();
int currentMipLevels = vkTex->texturePriv().maxMipMapLevel() + 1;
if (newMipLevels > currentMipLevels) {
if (!vkTex->reallocForMipmap(this, newMipLevels)) {
return false;
}
}
success = this->uploadTexDataOptimal(vkTex, left, top, width, height, config, texels);
}
success = this->uploadTexDataOptimal(vkTex, left, top, width, height, config, texels);
}
return success;
@ -483,6 +498,9 @@ bool GrVkGpu::uploadTexDataLinear(GrVkTexture* tex,
SkASSERT(data);
SkASSERT(tex->isLinearTiled());
// If we're uploading compressed data then we should be using uploadCompressedTexData
SkASSERT(!GrPixelConfigIsCompressed(dataConfig));
size_t bpp = GrBytesPerPixel(dataConfig);
if (!GrSurfacePriv::AdjustWritePixelParams(tex->width(), tex->height(), bpp, &left, &top,
@ -551,6 +569,9 @@ bool GrVkGpu::uploadTexDataOptimal(GrVkTexture* tex,
// first.
SkASSERT(1 == texels.count() || texels.count() == (tex->texturePriv().maxMipMapLevel() + 1));
// If we're uploading compressed data then we should be using uploadCompressedTexData
SkASSERT(!GrPixelConfigIsCompressed(dataConfig));
if (width == 0 || height == 0) {
return false;
}

3
src/gpu/vk/GrVkGpu.h
View File

@ -176,6 +176,9 @@ private:
GrTexture* onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
const SkTArray<GrMipLevel>&) override;
GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, SkBudgeted,
const SkTArray<GrMipLevel>&) override { return NULL; }
sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&,
GrSurfaceOrigin,
GrBackendTextureFlags,

6
src/gpu/vk/GrVkUtil.cpp
View File

@ -48,6 +48,10 @@ bool GrPixelConfigToVkFormat(GrPixelConfig config, VkFormat* format) {
case kGray_8_GrPixelConfig:
*format = VK_FORMAT_R8_UNORM;
return true;
case kETC1_GrPixelConfig:
// converting to ETC2 which is a superset of ETC1
*format = VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
return true;
case kRGBA_float_GrPixelConfig:
*format = VK_FORMAT_R32G32B32A32_SFLOAT;
return true;
@ -86,6 +90,8 @@ GrPixelConfig GrVkFormatToPixelConfig(VkFormat format) {
return kRGBA_4444_GrPixelConfig;
case VK_FORMAT_R8_UNORM:
return kAlpha_8_GrPixelConfig;
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
return kETC1_GrPixelConfig; // this conversion seems a bit sketchy
case VK_FORMAT_R32G32B32A32_SFLOAT:
return kRGBA_float_GrPixelConfig;
case VK_FORMAT_R32G32_SFLOAT:

2
tests/ProxyTest.cpp
View File

@ -118,7 +118,7 @@ DEF_GPUTEST_FOR_RENDERING_CONTEXTS(DeferredProxyTest, reporter, ctxInfo) {
for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
for (auto widthHeight : { 100, 128, 1048576 }) {
for (auto config : { kAlpha_8_GrPixelConfig, kRGB_565_GrPixelConfig,
kRGBA_8888_GrPixelConfig }) {
kETC1_GrPixelConfig, kRGBA_8888_GrPixelConfig }) {
for (auto fit : { SkBackingFit::kExact, SkBackingFit::kApprox }) {
for (auto budgeted : { SkBudgeted::kYes, SkBudgeted::kNo }) {
for (auto numSamples : { 0, 4, 16, 128 }) {

161
third_party/etc1/LICENSE vendored Normal file
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@ -0,0 +1,161 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"You" (or "Your") shall mean an individual or Legal Entity exercising
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7
third_party/etc1/README.google vendored Normal file
View File

@ -0,0 +1,7 @@
URL: https://android.googlesource.com/platform/frameworks/native/+/master/opengl/
Version: 01cc538b
License: Apache 2.0
License File: LICENSE
Description: PKM file format (ETC1 data) support
Local Modifications: Created LICENSE file for compliance purposes. Not included in original
distribution.

678
third_party/etc1/etc1.cpp vendored Normal file
View File

@ -0,0 +1,678 @@
// Copyright 2009 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//////////////////////////////////////////////////////////////////////////////////////////
// This is a fork of the AOSP project ETC1 codec. The original code can be found
// at the following web site:
// https://android.googlesource.com/platform/frameworks/native/+/master/opengl/include/ETC1/
//////////////////////////////////////////////////////////////////////////////////////////
#include "etc1.h"
#include <cstring>
/* From http://www.khronos.org/registry/gles/extensions/OES/OES_compressed_ETC1_RGB8_texture.txt
The number of bits that represent a 4x4 texel block is 64 bits if
<internalformat> is given by ETC1_RGB8_OES.
The data for a block is a number of bytes,
{q0, q1, q2, q3, q4, q5, q6, q7}
where byte q0 is located at the lowest memory address and q7 at
the highest. The 64 bits specifying the block is then represented
by the following 64 bit integer:
int64bit = 256*(256*(256*(256*(256*(256*(256*q0+q1)+q2)+q3)+q4)+q5)+q6)+q7;
ETC1_RGB8_OES:
a) bit layout in bits 63 through 32 if diffbit = 0
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48
-----------------------------------------------
| base col1 | base col2 | base col1 | base col2 |
| R1 (4bits)| R2 (4bits)| G1 (4bits)| G2 (4bits)|
-----------------------------------------------
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
---------------------------------------------------
| base col1 | base col2 | table | table |diff|flip|
| B1 (4bits)| B2 (4bits)| cw 1 | cw 2 |bit |bit |
---------------------------------------------------
b) bit layout in bits 63 through 32 if diffbit = 1
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48
-----------------------------------------------
| base col1 | dcol 2 | base col1 | dcol 2 |
| R1' (5 bits) | dR2 | G1' (5 bits) | dG2 |
-----------------------------------------------
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
---------------------------------------------------
| base col 1 | dcol 2 | table | table |diff|flip|
| B1' (5 bits) | dB2 | cw 1 | cw 2 |bit |bit |
---------------------------------------------------
c) bit layout in bits 31 through 0 (in both cases)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
-----------------------------------------------
| most significant pixel index bits |
| p| o| n| m| l| k| j| i| h| g| f| e| d| c| b| a|
-----------------------------------------------
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
--------------------------------------------------
| least significant pixel index bits |
| p| o| n| m| l| k| j| i| h| g| f| e| d| c | b | a |
--------------------------------------------------
Add table 3.17.2: Intensity modifier sets for ETC1 compressed textures:
table codeword modifier table
------------------ ----------------------
0 -8 -2 2 8
1 -17 -5 5 17
2 -29 -9 9 29
3 -42 -13 13 42
4 -60 -18 18 60
5 -80 -24 24 80
6 -106 -33 33 106
7 -183 -47 47 183
Add table 3.17.3 Mapping from pixel index values to modifier values for
ETC1 compressed textures:
pixel index value
---------------
msb lsb resulting modifier value
----- ----- -------------------------
1 1 -b (large negative value)
1 0 -a (small negative value)
0 0 a (small positive value)
0 1 b (large positive value)
*/
static const int kModifierTable[] = {
/* 0 */2, 8, -2, -8,
/* 1 */5, 17, -5, -17,
/* 2 */9, 29, -9, -29,
/* 3 */13, 42, -13, -42,
/* 4 */18, 60, -18, -60,
/* 5 */24, 80, -24, -80,
/* 6 */33, 106, -33, -106,
/* 7 */47, 183, -47, -183 };
static const int kLookup[8] = { 0, 1, 2, 3, -4, -3, -2, -1 };
static inline etc1_byte clamp(int x) {
return (etc1_byte) (x >= 0 ? (x < 255 ? x : 255) : 0);
}
static
inline int convert4To8(int b) {
int c = b & 0xf;
return (c << 4) | c;
}
static
inline int convert5To8(int b) {
int c = b & 0x1f;
return (c << 3) | (c >> 2);
}
static
inline int convert6To8(int b) {
int c = b & 0x3f;
return (c << 2) | (c >> 4);
}
static
inline int divideBy255(int d) {
return (d + 128 + (d >> 8)) >> 8;
}
static
inline int convert8To4(int b) {
int c = b & 0xff;
return divideBy255(c * 15);
}
static
inline int convert8To5(int b) {
int c = b & 0xff;
return divideBy255(c * 31);
}
static
inline int convertDiff(int base, int diff) {
return convert5To8((0x1f & base) + kLookup[0x7 & diff]);
}
static
void decode_subblock(etc1_byte* pOut, int r, int g, int b, const int* table,
etc1_uint32 low, bool second, bool flipped) {
int baseX = 0;
int baseY = 0;
if (second) {
if (flipped) {
baseY = 2;
} else {
baseX = 2;
}
}
for (int i = 0; i < 8; i++) {
int x, y;
if (flipped) {
x = baseX + (i >> 1);
y = baseY + (i & 1);
} else {
x = baseX + (i >> 2);
y = baseY + (i & 3);
}
int k = y + (x * 4);
int offset = ((low >> k) & 1) | ((low >> (k + 15)) & 2);
int delta = table[offset];
etc1_byte* q = pOut + 3 * (x + 4 * y);
*q++ = clamp(r + delta);
*q++ = clamp(g + delta);
*q++ = clamp(b + delta);
}
}
// Input is an ETC1 compressed version of the data.
// Output is a 4 x 4 square of 3-byte pixels in form R, G, B
void etc1_decode_block(const etc1_byte* pIn, etc1_byte* pOut) {
etc1_uint32 high = (pIn[0] << 24) | (pIn[1] << 16) | (pIn[2] << 8) | pIn[3];
etc1_uint32 low = (pIn[4] << 24) | (pIn[5] << 16) | (pIn[6] << 8) | pIn[7];
int r1, r2, g1, g2, b1, b2;
if (high & 2) {
// differential
int rBase = high >> 27;
int gBase = high >> 19;
int bBase = high >> 11;
r1 = convert5To8(rBase);
r2 = convertDiff(rBase, high >> 24);
g1 = convert5To8(gBase);
g2 = convertDiff(gBase, high >> 16);
b1 = convert5To8(bBase);
b2 = convertDiff(bBase, high >> 8);
} else {
// not differential
r1 = convert4To8(high >> 28);
r2 = convert4To8(high >> 24);
g1 = convert4To8(high >> 20);
g2 = convert4To8(high >> 16);
b1 = convert4To8(high >> 12);
b2 = convert4To8(high >> 8);
}
int tableIndexA = 7 & (high >> 5);
int tableIndexB = 7 & (high >> 2);
const int* tableA = kModifierTable + tableIndexA * 4;
const int* tableB = kModifierTable + tableIndexB * 4;
bool flipped = (high & 1) != 0;
decode_subblock(pOut, r1, g1, b1, tableA, low, false, flipped);
decode_subblock(pOut, r2, g2, b2, tableB, low, true, flipped);
}
typedef struct {
etc1_uint32 high;
etc1_uint32 low;
etc1_uint32 score; // Lower is more accurate
} etc_compressed;
static
inline void take_best(etc_compressed* a, const etc_compressed* b) {
if (a->score > b->score) {
*a = *b;
}
}
static
void etc_average_colors_subblock(const etc1_byte* pIn, etc1_uint32 inMask,
etc1_byte* pColors, bool flipped, bool second) {
int r = 0;
int g = 0;
int b = 0;
if (flipped) {
int by = 0;
if (second) {
by = 2;
}
for (int y = 0; y < 2; y++) {
int yy = by + y;
for (int x = 0; x < 4; x++) {
int i = x + 4 * yy;
if (inMask & (1 << i)) {
const etc1_byte* p = pIn + i * 3;
r += *(p++);
g += *(p++);
b += *(p++);
}
}
}
} else {
int bx = 0;
if (second) {
bx = 2;
}
for (int y = 0; y < 4; y++) {
for (int x = 0; x < 2; x++) {
int xx = bx + x;
int i = xx + 4 * y;
if (inMask & (1 << i)) {
const etc1_byte* p = pIn + i * 3;
r += *(p++);
g += *(p++);
b += *(p++);
}
}
}
}
pColors[0] = (etc1_byte)((r + 4) >> 3);
pColors[1] = (etc1_byte)((g + 4) >> 3);
pColors[2] = (etc1_byte)((b + 4) >> 3);
}
static
inline int square(int x) {
return x * x;
}
static etc1_uint32 chooseModifier(const etc1_byte* pBaseColors,
const etc1_byte* pIn, etc1_uint32 *pLow, int bitIndex,
const int* pModifierTable) {
etc1_uint32 bestScore = ~0;
int bestIndex = 0;
int pixelR = pIn[0];
int pixelG = pIn[1];
int pixelB = pIn[2];
int r = pBaseColors[0];
int g = pBaseColors[1];
int b = pBaseColors[2];
for (int i = 0; i < 4; i++) {
int modifier = pModifierTable[i];
int decodedG = clamp(g + modifier);
etc1_uint32 score = (etc1_uint32) (6 * square(decodedG - pixelG));
if (score >= bestScore) {
continue;
}
int decodedR = clamp(r + modifier);
score += (etc1_uint32) (3 * square(decodedR - pixelR));
if (score >= bestScore) {
continue;
}
int decodedB = clamp(b + modifier);
score += (etc1_uint32) square(decodedB - pixelB);
if (score < bestScore) {
bestScore = score;
bestIndex = i;
}
}
etc1_uint32 lowMask = (((bestIndex >> 1) << 16) | (bestIndex & 1))
<< bitIndex;
*pLow |= lowMask;
return bestScore;
}
static
void etc_encode_subblock_helper(const etc1_byte* pIn, etc1_uint32 inMask,
etc_compressed* pCompressed, bool flipped, bool second,
const etc1_byte* pBaseColors, const int* pModifierTable) {
int score = pCompressed->score;
if (flipped) {
int by = 0;
if (second) {
by = 2;
}
for (int y = 0; y < 2; y++) {
int yy = by + y;
for (int x = 0; x < 4; x++) {
int i = x + 4 * yy;
if (inMask & (1 << i)) {
score += chooseModifier(pBaseColors, pIn + i * 3,
&pCompressed->low, yy + x * 4, pModifierTable);
}
}
}
} else {
int bx = 0;
if (second) {
bx = 2;
}
for (int y = 0; y < 4; y++) {
for (int x = 0; x < 2; x++) {
int xx = bx + x;
int i = xx + 4 * y;
if (inMask & (1 << i)) {
score += chooseModifier(pBaseColors, pIn + i * 3,
&pCompressed->low, y + xx * 4, pModifierTable);
}
}
}
}
pCompressed->score = score;
}
static bool inRange4bitSigned(int color) {
return color >= -4 && color <= 3;
}
static void etc_encodeBaseColors(etc1_byte* pBaseColors,
const etc1_byte* pColors, etc_compressed* pCompressed) {
int r1, g1, b1, r2, g2, b2; // 8 bit base colors for sub-blocks
bool differential;
{
int r51 = convert8To5(pColors[0]);
int g51 = convert8To5(pColors[1]);
int b51 = convert8To5(pColors[2]);
int r52 = convert8To5(pColors[3]);
int g52 = convert8To5(pColors[4]);
int b52 = convert8To5(pColors[5]);
r1 = convert5To8(r51);
g1 = convert5To8(g51);
b1 = convert5To8(b51);
int dr = r52 - r51;
int dg = g52 - g51;
int db = b52 - b51;
differential = inRange4bitSigned(dr) && inRange4bitSigned(dg)
&& inRange4bitSigned(db);
if (differential) {
r2 = convert5To8(r51 + dr);
g2 = convert5To8(g51 + dg);
b2 = convert5To8(b51 + db);
pCompressed->high |= (r51 << 27) | ((7 & dr) << 24) | (g51 << 19)
| ((7 & dg) << 16) | (b51 << 11) | ((7 & db) << 8) | 2;
}
}
if (!differential) {
int r41 = convert8To4(pColors[0]);
int g41 = convert8To4(pColors[1]);
int b41 = convert8To4(pColors[2]);
int r42 = convert8To4(pColors[3]);
int g42 = convert8To4(pColors[4]);
int b42 = convert8To4(pColors[5]);
r1 = convert4To8(r41);
g1 = convert4To8(g41);
b1 = convert4To8(b41);
r2 = convert4To8(r42);
g2 = convert4To8(g42);
b2 = convert4To8(b42);
pCompressed->high |= (r41 << 28) | (r42 << 24) | (g41 << 20) | (g42
<< 16) | (b41 << 12) | (b42 << 8);
}
pBaseColors[0] = r1;
pBaseColors[1] = g1;
pBaseColors[2] = b1;
pBaseColors[3] = r2;
pBaseColors[4] = g2;
pBaseColors[5] = b2;
}
static
void etc_encode_block_helper(const etc1_byte* pIn, etc1_uint32 inMask,
const etc1_byte* pColors, etc_compressed* pCompressed, bool flipped) {
pCompressed->score = ~0;
pCompressed->high = (flipped ? 1 : 0);
pCompressed->low = 0;
etc1_byte pBaseColors[6];
etc_encodeBaseColors(pBaseColors, pColors, pCompressed);
int originalHigh = pCompressed->high;
const int* pModifierTable = kModifierTable;
for (int i = 0; i < 8; i++, pModifierTable += 4) {
etc_compressed temp;
temp.score = 0;
temp.high = originalHigh | (i << 5);
temp.low = 0;
etc_encode_subblock_helper(pIn, inMask, &temp, flipped, false,
pBaseColors, pModifierTable);
take_best(pCompressed, &temp);
}
pModifierTable = kModifierTable;
etc_compressed firstHalf = *pCompressed;
for (int i = 0; i < 8; i++, pModifierTable += 4) {
etc_compressed temp;
temp.score = firstHalf.score;
temp.high = firstHalf.high | (i << 2);
temp.low = firstHalf.low;
etc_encode_subblock_helper(pIn, inMask, &temp, flipped, true,
pBaseColors + 3, pModifierTable);
if (i == 0) {
*pCompressed = temp;
} else {
take_best(pCompressed, &temp);
}
}
}
static void writeBigEndian(etc1_byte* pOut, etc1_uint32 d) {
pOut[0] = (etc1_byte)(d >> 24);
pOut[1] = (etc1_byte)(d >> 16);
pOut[2] = (etc1_byte)(d >> 8);
pOut[3] = (etc1_byte) d;
}
// Input is a 4 x 4 square of 3-byte pixels in form R, G, B
// inmask is a 16-bit mask where bit (1 << (x + y * 4)) tells whether the corresponding (x,y)
// pixel is valid or not. Invalid pixel color values are ignored when compressing.
// Output is an ETC1 compressed version of the data.
void etc1_encode_block(const etc1_byte* pIn, etc1_uint32 inMask,
etc1_byte* pOut) {
etc1_byte colors[6];
etc1_byte flippedColors[6];
etc_average_colors_subblock(pIn, inMask, colors, false, false);
etc_average_colors_subblock(pIn, inMask, colors + 3, false, true);
etc_average_colors_subblock(pIn, inMask, flippedColors, true, false);
etc_average_colors_subblock(pIn, inMask, flippedColors + 3, true, true);
etc_compressed a, b;
etc_encode_block_helper(pIn, inMask, colors, &a, false);
etc_encode_block_helper(pIn, inMask, flippedColors, &b, true);
take_best(&a, &b);
writeBigEndian(pOut, a.high);
writeBigEndian(pOut + 4, a.low);
}
// Return the size of the encoded image data (does not include size of PKM header).
etc1_uint32 etc1_get_encoded_data_size(etc1_uint32 width, etc1_uint32 height) {
return (((width + 3) & ~3) * ((height + 3) & ~3)) >> 1;
}
// Encode an entire image.
// pIn - pointer to the image data. Formatted such that the Red component of
// pixel (x,y) is at pIn + pixelSize * x + stride * y + redOffset;
// pOut - pointer to encoded data. Must be large enough to store entire encoded image.
int etc1_encode_image(const etc1_byte* pIn, etc1_uint32 width, etc1_uint32 height,
etc1_uint32 pixelSize, etc1_uint32 stride, etc1_byte* pOut) {
if (pixelSize < 2 || pixelSize > 3) {
return -1;
}
static const unsigned short kYMask[] = { 0x0, 0xf, 0xff, 0xfff, 0xffff };
static const unsigned short kXMask[] = { 0x0, 0x1111, 0x3333, 0x7777,
0xffff };
etc1_byte block[ETC1_DECODED_BLOCK_SIZE];
etc1_byte encoded[ETC1_ENCODED_BLOCK_SIZE];
etc1_uint32 encodedWidth = (width + 3) & ~3;
etc1_uint32 encodedHeight = (height + 3) & ~3;
for (etc1_uint32 y = 0; y < encodedHeight; y += 4) {
etc1_uint32 yEnd = height - y;
if (yEnd > 4) {
yEnd = 4;
}
int ymask = kYMask[yEnd];
for (etc1_uint32 x = 0; x < encodedWidth; x += 4) {
etc1_uint32 xEnd = width - x;
if (xEnd > 4) {
xEnd = 4;
}
int mask = ymask & kXMask[xEnd];
for (etc1_uint32 cy = 0; cy < yEnd; cy++) {
etc1_byte* q = block + (cy * 4) * 3;
const etc1_byte* p = pIn + pixelSize * x + stride * (y + cy);
if (pixelSize == 3) {
memcpy(q, p, xEnd * 3);
} else {
for (etc1_uint32 cx = 0; cx < xEnd; cx++) {
int pixel = (p[1] << 8) | p[0];
*q++ = convert5To8(pixel >> 11);
*q++ = convert6To8(pixel >> 5);
*q++ = convert5To8(pixel);
p += pixelSize;
}
}
}
etc1_encode_block(block, mask, encoded);
memcpy(pOut, encoded, sizeof(encoded));
pOut += sizeof(encoded);
}
}
return 0;
}
// Decode an entire image.
// pIn - pointer to encoded data.
// pOut - pointer to the image data. Will be written such that the Red component of
// pixel (x,y) is at pIn + pixelSize * x + stride * y + redOffset. Must be
// large enough to store entire image.
int etc1_decode_image(const etc1_byte* pIn, etc1_byte* pOut,
etc1_uint32 width, etc1_uint32 height,
etc1_uint32 pixelSize, etc1_uint32 stride) {
if (pixelSize < 2 || pixelSize > 3) {
return -1;
}
etc1_byte block[ETC1_DECODED_BLOCK_SIZE];
etc1_uint32 encodedWidth = (width + 3) & ~3;
etc1_uint32 encodedHeight = (height + 3) & ~3;
for (etc1_uint32 y = 0; y < encodedHeight; y += 4) {
etc1_uint32 yEnd = height - y;
if (yEnd > 4) {
yEnd = 4;
}
for (etc1_uint32 x = 0; x < encodedWidth; x += 4) {
etc1_uint32 xEnd = width - x;
if (xEnd > 4) {
xEnd = 4;
}
etc1_decode_block(pIn, block);
pIn += ETC1_ENCODED_BLOCK_SIZE;
for (etc1_uint32 cy = 0; cy < yEnd; cy++) {
const etc1_byte* q = block + (cy * 4) * 3;
etc1_byte* p = pOut + pixelSize * x + stride * (y + cy);
if (pixelSize == 3) {
memcpy(p, q, xEnd * 3);
} else {
for (etc1_uint32 cx = 0; cx < xEnd; cx++) {
etc1_byte r = *q++;
etc1_byte g = *q++;
etc1_byte b = *q++;
etc1_uint32 pixel = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
*p++ = (etc1_byte) pixel;
*p++ = (etc1_byte) (pixel >> 8);
}
}
}
}
}
return 0;
}
static const char kMagic[] = { 'P', 'K', 'M', ' ', '1', '0' };
static const etc1_uint32 ETC1_PKM_FORMAT_OFFSET = 6;
static const etc1_uint32 ETC1_PKM_ENCODED_WIDTH_OFFSET = 8;
static const etc1_uint32 ETC1_PKM_ENCODED_HEIGHT_OFFSET = 10;
static const etc1_uint32 ETC1_PKM_WIDTH_OFFSET = 12;
static const etc1_uint32 ETC1_PKM_HEIGHT_OFFSET = 14;
static const etc1_uint32 ETC1_RGB_NO_MIPMAPS = 0;
static void writeBEUint16(etc1_byte* pOut, etc1_uint32 data) {
pOut[0] = (etc1_byte) (data >> 8);
pOut[1] = (etc1_byte) data;
}
static etc1_uint32 readBEUint16(const etc1_byte* pIn) {
return (pIn[0] << 8) | pIn[1];
}
// Format a PKM header
void etc1_pkm_format_header(etc1_byte* pHeader, etc1_uint32 width, etc1_uint32 height) {
memcpy(pHeader, kMagic, sizeof(kMagic));
etc1_uint32 encodedWidth = (width + 3) & ~3;
etc1_uint32 encodedHeight = (height + 3) & ~3;
writeBEUint16(pHeader + ETC1_PKM_FORMAT_OFFSET, ETC1_RGB_NO_MIPMAPS);
writeBEUint16(pHeader + ETC1_PKM_ENCODED_WIDTH_OFFSET, encodedWidth);
writeBEUint16(pHeader + ETC1_PKM_ENCODED_HEIGHT_OFFSET, encodedHeight);
writeBEUint16(pHeader + ETC1_PKM_WIDTH_OFFSET, width);
writeBEUint16(pHeader + ETC1_PKM_HEIGHT_OFFSET, height);
}
// Check if a PKM header is correctly formatted.
etc1_bool etc1_pkm_is_valid(const etc1_byte* pHeader) {
if (memcmp(pHeader, kMagic, sizeof(kMagic))) {
return false;
}
etc1_uint32 format = readBEUint16(pHeader + ETC1_PKM_FORMAT_OFFSET);
etc1_uint32 encodedWidth = readBEUint16(pHeader + ETC1_PKM_ENCODED_WIDTH_OFFSET);
etc1_uint32 encodedHeight = readBEUint16(pHeader + ETC1_PKM_ENCODED_HEIGHT_OFFSET);
etc1_uint32 width = readBEUint16(pHeader + ETC1_PKM_WIDTH_OFFSET);
etc1_uint32 height = readBEUint16(pHeader + ETC1_PKM_HEIGHT_OFFSET);
return format == ETC1_RGB_NO_MIPMAPS &&
encodedWidth >= width && encodedWidth - width < 4 &&
encodedHeight >= height && encodedHeight - height < 4;
}
// Read the image width from a PKM header
etc1_uint32 etc1_pkm_get_width(const etc1_byte* pHeader) {
return readBEUint16(pHeader + ETC1_PKM_WIDTH_OFFSET);
}
// Read the image height from a PKM header
etc1_uint32 etc1_pkm_get_height(const etc1_byte* pHeader){
return readBEUint16(pHeader + ETC1_PKM_HEIGHT_OFFSET);
}

114
third_party/etc1/etc1.h vendored Normal file
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@ -0,0 +1,114 @@
// Copyright 2009 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//////////////////////////////////////////////////////////////////////////////////////////
// This is a fork of the AOSP project ETC1 codec. The original code can be found
// at the following web site:
// https://android.googlesource.com/platform/frameworks/native/+/master/opengl/libs/ETC1/
//////////////////////////////////////////////////////////////////////////////////////////
#ifndef __etc1_h__
#define __etc1_h__
#define ETC1_ENCODED_BLOCK_SIZE 8
#define ETC1_DECODED_BLOCK_SIZE 48
#ifndef ETC1_RGB8_OES
#define ETC1_RGB8_OES 0x8D64
#endif
typedef unsigned char etc1_byte;
typedef int etc1_bool;
typedef unsigned int etc1_uint32;
#ifdef __cplusplus
extern "C" {
#endif
// Encode a block of pixels.
//
// pIn is a pointer to a ETC_DECODED_BLOCK_SIZE array of bytes that represent a
// 4 x 4 square of 3-byte pixels in form R, G, B. Byte (3 * (x + 4 * y) is the R
// value of pixel (x, y).
//
// validPixelMask is a 16-bit mask where bit (1 << (x + y * 4)) indicates whether
// the corresponding (x,y) pixel is valid. Invalid pixel color values are ignored when compressing.
//
// pOut is an ETC1 compressed version of the data.
void etc1_encode_block(const etc1_byte* pIn, etc1_uint32 validPixelMask, etc1_byte* pOut);
// Decode a block of pixels.
//
// pIn is an ETC1 compressed version of the data.
//
// pOut is a pointer to a ETC_DECODED_BLOCK_SIZE array of bytes that represent a
// 4 x 4 square of 3-byte pixels in form R, G, B. Byte (3 * (x + 4 * y) is the R
// value of pixel (x, y).
void etc1_decode_block(const etc1_byte* pIn, etc1_byte* pOut);
// Return the size of the encoded image data (does not include size of PKM header).
etc1_uint32 etc1_get_encoded_data_size(etc1_uint32 width, etc1_uint32 height);
// Encode an entire image.
// pIn - pointer to the image data. Formatted such that
// pixel (x,y) is at pIn + pixelSize * x + stride * y;
// pOut - pointer to encoded data. Must be large enough to store entire encoded image.
// pixelSize can be 2 or 3. 2 is an GL_UNSIGNED_SHORT_5_6_5 image, 3 is a GL_BYTE RGB image.
// returns non-zero if there is an error.
int etc1_encode_image(const etc1_byte* pIn, etc1_uint32 width, etc1_uint32 height,
etc1_uint32 pixelSize, etc1_uint32 stride, etc1_byte* pOut);
// Decode an entire image.
// pIn - pointer to encoded data.
// pOut - pointer to the image data. Will be written such that
// pixel (x,y) is at pIn + pixelSize * x + stride * y. Must be
// large enough to store entire image.
// pixelSize can be 2 or 3. 2 is an GL_UNSIGNED_SHORT_5_6_5 image, 3 is a GL_BYTE RGB image.
// returns non-zero if there is an error.
int etc1_decode_image(const etc1_byte* pIn, etc1_byte* pOut,
etc1_uint32 width, etc1_uint32 height,
etc1_uint32 pixelSize, etc1_uint32 stride);
// Size of a PKM header, in bytes.
#define ETC_PKM_HEADER_SIZE 16
// Format a PKM header
void etc1_pkm_format_header(etc1_byte* pHeader, etc1_uint32 width, etc1_uint32 height);
// Check if a PKM header is correctly formatted.
etc1_bool etc1_pkm_is_valid(const etc1_byte* pHeader);
// Read the image width from a PKM header
etc1_uint32 etc1_pkm_get_width(const etc1_byte* pHeader);
// Read the image height from a PKM header
etc1_uint32 etc1_pkm_get_height(const etc1_byte* pHeader);
#ifdef __cplusplus
}
#endif
#endif

5
tools/gpu/GrTest.cpp
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@ -360,6 +360,11 @@ private:
return nullptr;
}
GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
const SkTArray<GrMipLevel>& texels) override {
return nullptr;
}
sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&,
GrSurfaceOrigin,
GrBackendTextureFlags,