| Index: src/gpu/SkGpuDevice.cpp
|
| diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
|
| index 4041c411fc1391618b5238c3c85ddd83c13461c3..f5b84a3136144c12333d003238003c47524a0b51 100644
|
| --- a/src/gpu/SkGpuDevice.cpp
|
| +++ b/src/gpu/SkGpuDevice.cpp
|
| @@ -1,1860 +1,1877 @@
|
| -/*
|
| - * 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 "SkGpuDevice.h"
|
| -
|
| -#include "effects/GrTextureDomainEffect.h"
|
| -#include "effects/GrSimpleTextureEffect.h"
|
| -
|
| -#include "GrContext.h"
|
| -#include "GrBitmapTextContext.h"
|
| -
|
| -#include "SkGrTexturePixelRef.h"
|
| -
|
| -#include "SkColorFilter.h"
|
| -#include "SkDeviceImageFilterProxy.h"
|
| -#include "SkDrawProcs.h"
|
| -#include "SkGlyphCache.h"
|
| -#include "SkImageFilter.h"
|
| -#include "SkPathEffect.h"
|
| -#include "SkRRect.h"
|
| -#include "SkStroke.h"
|
| -#include "SkUtils.h"
|
| -#include "SkErrorInternals.h"
|
| -
|
| -#define CACHE_COMPATIBLE_DEVICE_TEXTURES 1
|
| -
|
| -#if 0
|
| - extern bool (*gShouldDrawProc)();
|
| - #define CHECK_SHOULD_DRAW(draw, forceI) \
|
| - do { \
|
| - if (gShouldDrawProc && !gShouldDrawProc()) return; \
|
| - this->prepareDraw(draw, forceI); \
|
| - } while (0)
|
| -#else
|
| - #define CHECK_SHOULD_DRAW(draw, forceI) this->prepareDraw(draw, forceI)
|
| -#endif
|
| -
|
| -// This constant represents the screen alignment criterion in texels for
|
| -// requiring texture domain clamping to prevent color bleeding when drawing
|
| -// a sub region of a larger source image.
|
| -#define COLOR_BLEED_TOLERANCE SkFloatToScalar(0.001f)
|
| -
|
| -#define DO_DEFERRED_CLEAR() \
|
| - do { \
|
| - if (fNeedClear) { \
|
| - this->clear(SK_ColorTRANSPARENT); \
|
| - } \
|
| - } while (false) \
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -#define CHECK_FOR_ANNOTATION(paint) \
|
| - do { if (paint.getAnnotation()) { return; } } while (0)
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -
|
| -class SkGpuDevice::SkAutoCachedTexture : public ::SkNoncopyable {
|
| -public:
|
| - SkAutoCachedTexture()
|
| - : fDevice(NULL)
|
| - , fTexture(NULL) {
|
| - }
|
| -
|
| - SkAutoCachedTexture(SkGpuDevice* device,
|
| - const SkBitmap& bitmap,
|
| - const GrTextureParams* params,
|
| - GrTexture** texture)
|
| - : fDevice(NULL)
|
| - , fTexture(NULL) {
|
| - SkASSERT(NULL != texture);
|
| - *texture = this->set(device, bitmap, params);
|
| - }
|
| -
|
| - ~SkAutoCachedTexture() {
|
| - if (NULL != fTexture) {
|
| - GrUnlockAndUnrefCachedBitmapTexture(fTexture);
|
| - }
|
| - }
|
| -
|
| - GrTexture* set(SkGpuDevice* device,
|
| - const SkBitmap& bitmap,
|
| - const GrTextureParams* params) {
|
| - if (NULL != fTexture) {
|
| - GrUnlockAndUnrefCachedBitmapTexture(fTexture);
|
| - fTexture = NULL;
|
| - }
|
| - fDevice = device;
|
| - GrTexture* result = (GrTexture*)bitmap.getTexture();
|
| - if (NULL == result) {
|
| - // Cannot return the native texture so look it up in our cache
|
| - fTexture = GrLockAndRefCachedBitmapTexture(device->context(), bitmap, params);
|
| - result = fTexture;
|
| - }
|
| - return result;
|
| - }
|
| -
|
| -private:
|
| - SkGpuDevice* fDevice;
|
| - GrTexture* fTexture;
|
| -};
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -struct GrSkDrawProcs : public SkDrawProcs {
|
| -public:
|
| - GrContext* fContext;
|
| - GrTextContext* fTextContext;
|
| - GrFontScaler* fFontScaler; // cached in the skia glyphcache
|
| -};
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -static SkBitmap::Config grConfig2skConfig(GrPixelConfig config, bool* isOpaque) {
|
| - switch (config) {
|
| - case kAlpha_8_GrPixelConfig:
|
| - *isOpaque = false;
|
| - return SkBitmap::kA8_Config;
|
| - case kRGB_565_GrPixelConfig:
|
| - *isOpaque = true;
|
| - return SkBitmap::kRGB_565_Config;
|
| - case kRGBA_4444_GrPixelConfig:
|
| - *isOpaque = false;
|
| - return SkBitmap::kARGB_4444_Config;
|
| - case kSkia8888_GrPixelConfig:
|
| - // we don't currently have a way of knowing whether
|
| - // a 8888 is opaque based on the config.
|
| - *isOpaque = false;
|
| - return SkBitmap::kARGB_8888_Config;
|
| - default:
|
| - *isOpaque = false;
|
| - return SkBitmap::kNo_Config;
|
| - }
|
| -}
|
| -
|
| -/*
|
| - * GrRenderTarget does not know its opaqueness, only its config, so we have
|
| - * to make conservative guesses when we return an "equivalent" bitmap.
|
| - */
|
| -static SkBitmap make_bitmap(GrContext* context, GrRenderTarget* renderTarget) {
|
| - bool isOpaque;
|
| - SkBitmap::Config config = grConfig2skConfig(renderTarget->config(), &isOpaque);
|
| -
|
| - SkBitmap bitmap;
|
| - bitmap.setConfig(config, renderTarget->width(), renderTarget->height(), 0,
|
| - isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
|
| - return bitmap;
|
| -}
|
| -
|
| -SkGpuDevice* SkGpuDevice::Create(GrSurface* surface) {
|
| - SkASSERT(NULL != surface);
|
| - if (NULL == surface->asRenderTarget() || NULL == surface->getContext()) {
|
| - return NULL;
|
| - }
|
| - if (surface->asTexture()) {
|
| - return SkNEW_ARGS(SkGpuDevice, (surface->getContext(), surface->asTexture()));
|
| - } else {
|
| - return SkNEW_ARGS(SkGpuDevice, (surface->getContext(), surface->asRenderTarget()));
|
| - }
|
| -}
|
| -
|
| -SkGpuDevice::SkGpuDevice(GrContext* context, GrTexture* texture)
|
| - : SkBitmapDevice(make_bitmap(context, texture->asRenderTarget())) {
|
| - this->initFromRenderTarget(context, texture->asRenderTarget(), false);
|
| -}
|
| -
|
| -SkGpuDevice::SkGpuDevice(GrContext* context, GrRenderTarget* renderTarget)
|
| - : SkBitmapDevice(make_bitmap(context, renderTarget)) {
|
| - this->initFromRenderTarget(context, renderTarget, false);
|
| -}
|
| -
|
| -void SkGpuDevice::initFromRenderTarget(GrContext* context,
|
| - GrRenderTarget* renderTarget,
|
| - bool cached) {
|
| - fDrawProcs = NULL;
|
| -
|
| - fContext = context;
|
| - fContext->ref();
|
| -
|
| - fRenderTarget = NULL;
|
| - fNeedClear = false;
|
| -
|
| - SkASSERT(NULL != renderTarget);
|
| - fRenderTarget = renderTarget;
|
| - fRenderTarget->ref();
|
| -
|
| - // Hold onto to the texture in the pixel ref (if there is one) because the texture holds a ref
|
| - // on the RT but not vice-versa.
|
| - // TODO: Remove this trickery once we figure out how to make SkGrPixelRef do this without
|
| - // busting chrome (for a currently unknown reason).
|
| - GrSurface* surface = fRenderTarget->asTexture();
|
| - if (NULL == surface) {
|
| - surface = fRenderTarget;
|
| - }
|
| - SkPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (surface, cached));
|
| -
|
| - this->setPixelRef(pr, 0)->unref();
|
| -}
|
| -
|
| -SkGpuDevice::SkGpuDevice(GrContext* context,
|
| - SkBitmap::Config config,
|
| - int width,
|
| - int height,
|
| - int sampleCount)
|
| - : SkBitmapDevice(config, width, height, false /*isOpaque*/) {
|
| -
|
| - fDrawProcs = NULL;
|
| -
|
| - fContext = context;
|
| - fContext->ref();
|
| -
|
| - fRenderTarget = NULL;
|
| - fNeedClear = false;
|
| -
|
| - if (config != SkBitmap::kRGB_565_Config) {
|
| - config = SkBitmap::kARGB_8888_Config;
|
| - }
|
| -
|
| - GrTextureDesc desc;
|
| - desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| - desc.fWidth = width;
|
| - desc.fHeight = height;
|
| - desc.fConfig = SkBitmapConfig2GrPixelConfig(config);
|
| - desc.fSampleCnt = sampleCount;
|
| -
|
| - SkAutoTUnref<GrTexture> texture(fContext->createUncachedTexture(desc, NULL, 0));
|
| -
|
| - if (NULL != texture) {
|
| - fRenderTarget = texture->asRenderTarget();
|
| - fRenderTarget->ref();
|
| -
|
| - SkASSERT(NULL != fRenderTarget);
|
| -
|
| - // wrap the bitmap with a pixelref to expose our texture
|
| - SkGrPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (texture));
|
| - this->setPixelRef(pr, 0)->unref();
|
| - } else {
|
| - GrPrintf("--- failed to create gpu-offscreen [%d %d]\n",
|
| - width, height);
|
| - SkASSERT(false);
|
| - }
|
| -}
|
| -
|
| -SkGpuDevice::~SkGpuDevice() {
|
| - if (fDrawProcs) {
|
| - delete fDrawProcs;
|
| - }
|
| -
|
| - // The GrContext takes a ref on the target. We don't want to cause the render
|
| - // target to be unnecessarily kept alive.
|
| - if (fContext->getRenderTarget() == fRenderTarget) {
|
| - fContext->setRenderTarget(NULL);
|
| - }
|
| -
|
| - if (fContext->getClip() == &fClipData) {
|
| - fContext->setClip(NULL);
|
| - }
|
| -
|
| - SkSafeUnref(fRenderTarget);
|
| - fContext->unref();
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -void SkGpuDevice::makeRenderTargetCurrent() {
|
| - DO_DEFERRED_CLEAR();
|
| - fContext->setRenderTarget(fRenderTarget);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -namespace {
|
| -GrPixelConfig config8888_to_grconfig_and_flags(SkCanvas::Config8888 config8888, uint32_t* flags) {
|
| - switch (config8888) {
|
| - case SkCanvas::kNative_Premul_Config8888:
|
| - *flags = 0;
|
| - return kSkia8888_GrPixelConfig;
|
| - case SkCanvas::kNative_Unpremul_Config8888:
|
| - *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| - return kSkia8888_GrPixelConfig;
|
| - case SkCanvas::kBGRA_Premul_Config8888:
|
| - *flags = 0;
|
| - return kBGRA_8888_GrPixelConfig;
|
| - case SkCanvas::kBGRA_Unpremul_Config8888:
|
| - *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| - return kBGRA_8888_GrPixelConfig;
|
| - case SkCanvas::kRGBA_Premul_Config8888:
|
| - *flags = 0;
|
| - return kRGBA_8888_GrPixelConfig;
|
| - case SkCanvas::kRGBA_Unpremul_Config8888:
|
| - *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| - return kRGBA_8888_GrPixelConfig;
|
| - default:
|
| - GrCrash("Unexpected Config8888.");
|
| - *flags = 0; // suppress warning
|
| - return kSkia8888_GrPixelConfig;
|
| - }
|
| -}
|
| -}
|
| -
|
| -bool SkGpuDevice::onReadPixels(const SkBitmap& bitmap,
|
| - int x, int y,
|
| - SkCanvas::Config8888 config8888) {
|
| - DO_DEFERRED_CLEAR();
|
| - SkASSERT(SkBitmap::kARGB_8888_Config == bitmap.config());
|
| - SkASSERT(!bitmap.isNull());
|
| - SkASSERT(SkIRect::MakeWH(this->width(), this->height()).contains(SkIRect::MakeXYWH(x, y, bitmap.width(), bitmap.height())));
|
| -
|
| - SkAutoLockPixels alp(bitmap);
|
| - GrPixelConfig config;
|
| - uint32_t flags;
|
| - config = config8888_to_grconfig_and_flags(config8888, &flags);
|
| - return fContext->readRenderTargetPixels(fRenderTarget,
|
| - x, y,
|
| - bitmap.width(),
|
| - bitmap.height(),
|
| - config,
|
| - bitmap.getPixels(),
|
| - bitmap.rowBytes(),
|
| - flags);
|
| -}
|
| -
|
| -void SkGpuDevice::writePixels(const SkBitmap& bitmap, int x, int y,
|
| - SkCanvas::Config8888 config8888) {
|
| - SkAutoLockPixels alp(bitmap);
|
| - if (!bitmap.readyToDraw()) {
|
| - return;
|
| - }
|
| -
|
| - GrPixelConfig config;
|
| - uint32_t flags;
|
| - if (SkBitmap::kARGB_8888_Config == bitmap.config()) {
|
| - config = config8888_to_grconfig_and_flags(config8888, &flags);
|
| - } else {
|
| - flags = 0;
|
| - config= SkBitmapConfig2GrPixelConfig(bitmap.config());
|
| - }
|
| -
|
| - fRenderTarget->writePixels(x, y, bitmap.width(), bitmap.height(),
|
| - config, bitmap.getPixels(), bitmap.rowBytes(), flags);
|
| -}
|
| -
|
| -namespace {
|
| -void purgeClipCB(int genID, void* ) {
|
| -
|
| - if (SkClipStack::kInvalidGenID == genID ||
|
| - SkClipStack::kEmptyGenID == genID ||
|
| - SkClipStack::kWideOpenGenID == genID) {
|
| - // none of these cases will have a cached clip mask
|
| - return;
|
| - }
|
| -
|
| -}
|
| -};
|
| -
|
| -void SkGpuDevice::onAttachToCanvas(SkCanvas* canvas) {
|
| - INHERITED::onAttachToCanvas(canvas);
|
| -
|
| - // Canvas promises that this ptr is valid until onDetachFromCanvas is called
|
| - fClipData.fClipStack = canvas->getClipStack();
|
| -
|
| - fClipData.fClipStack->addPurgeClipCallback(purgeClipCB, fContext);
|
| -}
|
| -
|
| -void SkGpuDevice::onDetachFromCanvas() {
|
| - INHERITED::onDetachFromCanvas();
|
| -
|
| - // TODO: iterate through the clip stack and clean up any cached clip masks
|
| - fClipData.fClipStack->removePurgeClipCallback(purgeClipCB, fContext);
|
| -
|
| - fClipData.fClipStack = NULL;
|
| -}
|
| -
|
| -// call this every draw call, to ensure that the context reflects our state,
|
| -// and not the state from some other canvas/device
|
| -void SkGpuDevice::prepareDraw(const SkDraw& draw, bool forceIdentity) {
|
| - SkASSERT(NULL != fClipData.fClipStack);
|
| -
|
| - fContext->setRenderTarget(fRenderTarget);
|
| -
|
| - SkASSERT(draw.fClipStack && draw.fClipStack == fClipData.fClipStack);
|
| -
|
| - if (forceIdentity) {
|
| - fContext->setIdentityMatrix();
|
| - } else {
|
| - fContext->setMatrix(*draw.fMatrix);
|
| - }
|
| - fClipData.fOrigin = this->getOrigin();
|
| -
|
| - fContext->setClip(&fClipData);
|
| -
|
| - DO_DEFERRED_CLEAR();
|
| -}
|
| -
|
| -GrRenderTarget* SkGpuDevice::accessRenderTarget() {
|
| - DO_DEFERRED_CLEAR();
|
| - return fRenderTarget;
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -SK_COMPILE_ASSERT(SkShader::kNone_BitmapType == 0, shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kDefault_BitmapType == 1, shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kRadial_BitmapType == 2, shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kSweep_BitmapType == 3, shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kTwoPointRadial_BitmapType == 4,
|
| - shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kTwoPointConical_BitmapType == 5,
|
| - shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kLinear_BitmapType == 6, shader_type_mismatch);
|
| -SK_COMPILE_ASSERT(SkShader::kLast_BitmapType == 6, shader_type_mismatch);
|
| -
|
| -namespace {
|
| -
|
| -// converts a SkPaint to a GrPaint, ignoring the skPaint's shader
|
| -// justAlpha indicates that skPaint's alpha should be used rather than the color
|
| -// Callers may subsequently modify the GrPaint. Setting constantColor indicates
|
| -// that the final paint will draw the same color at every pixel. This allows
|
| -// an optimization where the the color filter can be applied to the skPaint's
|
| -// color once while converting to GrPaint and then ignored.
|
| -inline bool skPaint2GrPaintNoShader(SkGpuDevice* dev,
|
| - const SkPaint& skPaint,
|
| - bool justAlpha,
|
| - bool constantColor,
|
| - GrPaint* grPaint) {
|
| -
|
| - grPaint->setDither(skPaint.isDither());
|
| - grPaint->setAntiAlias(skPaint.isAntiAlias());
|
| -
|
| - SkXfermode::Coeff sm;
|
| - SkXfermode::Coeff dm;
|
| -
|
| - SkXfermode* mode = skPaint.getXfermode();
|
| - GrEffectRef* xferEffect = NULL;
|
| - if (SkXfermode::AsNewEffectOrCoeff(mode, &xferEffect, &sm, &dm)) {
|
| - if (NULL != xferEffect) {
|
| - grPaint->addColorEffect(xferEffect)->unref();
|
| - sm = SkXfermode::kOne_Coeff;
|
| - dm = SkXfermode::kZero_Coeff;
|
| - }
|
| - } else {
|
| - //SkDEBUGCODE(SkDebugf("Unsupported xfer mode.\n");)
|
| -#if 0
|
| - return false;
|
| -#else
|
| - // Fall back to src-over
|
| - sm = SkXfermode::kOne_Coeff;
|
| - dm = SkXfermode::kISA_Coeff;
|
| -#endif
|
| - }
|
| - grPaint->setBlendFunc(sk_blend_to_grblend(sm), sk_blend_to_grblend(dm));
|
| -
|
| - if (justAlpha) {
|
| - uint8_t alpha = skPaint.getAlpha();
|
| - grPaint->setColor(GrColorPackRGBA(alpha, alpha, alpha, alpha));
|
| - // justAlpha is currently set to true only if there is a texture,
|
| - // so constantColor should not also be true.
|
| - SkASSERT(!constantColor);
|
| - } else {
|
| - grPaint->setColor(SkColor2GrColor(skPaint.getColor()));
|
| - }
|
| -
|
| - SkColorFilter* colorFilter = skPaint.getColorFilter();
|
| - if (NULL != colorFilter) {
|
| - // if the source color is a constant then apply the filter here once rather than per pixel
|
| - // in a shader.
|
| - if (constantColor) {
|
| - SkColor filtered = colorFilter->filterColor(skPaint.getColor());
|
| - grPaint->setColor(SkColor2GrColor(filtered));
|
| - } else {
|
| - SkAutoTUnref<GrEffectRef> effect(colorFilter->asNewEffect(dev->context()));
|
| - if (NULL != effect.get()) {
|
| - grPaint->addColorEffect(effect);
|
| - }
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -// This function is similar to skPaint2GrPaintNoShader but also converts
|
| -// skPaint's shader to a GrTexture/GrEffectStage if possible. The texture to
|
| -// be used is set on grPaint and returned in param act. constantColor has the
|
| -// same meaning as in skPaint2GrPaintNoShader.
|
| -inline bool skPaint2GrPaintShader(SkGpuDevice* dev,
|
| - const SkPaint& skPaint,
|
| - bool constantColor,
|
| - GrPaint* grPaint) {
|
| - SkShader* shader = skPaint.getShader();
|
| - if (NULL == shader) {
|
| - return skPaint2GrPaintNoShader(dev, skPaint, false, constantColor, grPaint);
|
| - }
|
| -
|
| - // SkShader::asNewEffect() may do offscreen rendering. Setup default drawing state
|
| - // Also require shader to set the render target .
|
| - GrContext::AutoWideOpenIdentityDraw awo(dev->context(), NULL);
|
| - GrContext::AutoRenderTarget(dev->context(), NULL);
|
| -
|
| - // setup the shader as the first color effect on the paint
|
| - SkAutoTUnref<GrEffectRef> effect(shader->asNewEffect(dev->context(), skPaint));
|
| - if (NULL != effect.get()) {
|
| - grPaint->addColorEffect(effect);
|
| - // Now setup the rest of the paint.
|
| - return skPaint2GrPaintNoShader(dev, skPaint, true, false, grPaint);
|
| - } else {
|
| - // We still don't have SkColorShader::asNewEffect() implemented.
|
| - SkShader::GradientInfo info;
|
| - SkColor color;
|
| -
|
| - info.fColors = &color;
|
| - info.fColorOffsets = NULL;
|
| - info.fColorCount = 1;
|
| - if (SkShader::kColor_GradientType == shader->asAGradient(&info)) {
|
| - SkPaint copy(skPaint);
|
| - copy.setShader(NULL);
|
| - // modulate the paint alpha by the shader's solid color alpha
|
| - U8CPU newA = SkMulDiv255Round(SkColorGetA(color), copy.getAlpha());
|
| - copy.setColor(SkColorSetA(color, newA));
|
| - return skPaint2GrPaintNoShader(dev, copy, false, constantColor, grPaint);
|
| - } else {
|
| - return false;
|
| - }
|
| - }
|
| -}
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -void SkGpuDevice::getGlobalBounds(SkIRect* bounds) const {
|
| - if (NULL != bounds) {
|
| - const SkIPoint& origin = this->getOrigin();
|
| - bounds->setXYWH(origin.x(), origin.y(),
|
| - this->width(), this->height());
|
| - }
|
| -}
|
| -
|
| -SkBitmap::Config SkGpuDevice::config() const {
|
| - if (NULL == fRenderTarget) {
|
| - return SkBitmap::kNo_Config;
|
| - }
|
| -
|
| - bool isOpaque;
|
| - return grConfig2skConfig(fRenderTarget->config(), &isOpaque);
|
| -}
|
| -
|
| -void SkGpuDevice::clear(SkColor color) {
|
| - SkIRect rect = SkIRect::MakeWH(this->width(), this->height());
|
| - fContext->clear(&rect, SkColor2GrColor(color), true, fRenderTarget);
|
| - fNeedClear = false;
|
| -}
|
| -
|
| -void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - fContext->drawPaint(grPaint);
|
| -}
|
| -
|
| -// must be in SkCanvas::PointMode order
|
| -static const GrPrimitiveType gPointMode2PrimtiveType[] = {
|
| - kPoints_GrPrimitiveType,
|
| - kLines_GrPrimitiveType,
|
| - kLineStrip_GrPrimitiveType
|
| -};
|
| -
|
| -void SkGpuDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode,
|
| - size_t count, const SkPoint pts[], const SkPaint& paint) {
|
| - CHECK_FOR_ANNOTATION(paint);
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - SkScalar width = paint.getStrokeWidth();
|
| - if (width < 0) {
|
| - return;
|
| - }
|
| -
|
| - // we only handle hairlines and paints without path effects or mask filters,
|
| - // else we let the SkDraw call our drawPath()
|
| - if (width > 0 || paint.getPathEffect() || paint.getMaskFilter()) {
|
| - draw.drawPoints(mode, count, pts, paint, true);
|
| - return;
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - fContext->drawVertices(grPaint,
|
| - gPointMode2PrimtiveType[mode],
|
| - count,
|
| - (GrPoint*)pts,
|
| - NULL,
|
| - NULL,
|
| - NULL,
|
| - 0);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect,
|
| - const SkPaint& paint) {
|
| - CHECK_FOR_ANNOTATION(paint);
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - bool doStroke = paint.getStyle() != SkPaint::kFill_Style;
|
| - SkScalar width = paint.getStrokeWidth();
|
| -
|
| - /*
|
| - We have special code for hairline strokes, miter-strokes, and fills.
|
| - Anything else we just call our path code.
|
| - */
|
| - bool usePath = doStroke && width > 0 &&
|
| - paint.getStrokeJoin() != SkPaint::kMiter_Join;
|
| - // another two reasons we might need to call drawPath...
|
| - if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| - usePath = true;
|
| - }
|
| - if (!usePath && paint.isAntiAlias() && !fContext->getMatrix().rectStaysRect()) {
|
| -#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
|
| - if (doStroke) {
|
| -#endif
|
| - usePath = true;
|
| -#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
|
| - } else {
|
| - usePath = !fContext->getMatrix().preservesRightAngles();
|
| - }
|
| -#endif
|
| - }
|
| - // small miter limit means right angles show bevel...
|
| - if (SkPaint::kMiter_Join == paint.getStrokeJoin() &&
|
| - paint.getStrokeMiter() < SK_ScalarSqrt2)
|
| - {
|
| - usePath = true;
|
| - }
|
| - // until we can both stroke and fill rectangles
|
| - if (paint.getStyle() == SkPaint::kStrokeAndFill_Style) {
|
| - usePath = true;
|
| - }
|
| -
|
| - if (usePath) {
|
| - SkPath path;
|
| - path.addRect(rect);
|
| - this->drawPath(draw, path, paint, NULL, true);
|
| - return;
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| - fContext->drawRect(grPaint, rect, doStroke ? width : -1);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -void SkGpuDevice::drawRRect(const SkDraw& draw, const SkRRect& rect,
|
| - const SkPaint& paint) {
|
| - CHECK_FOR_ANNOTATION(paint);
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - bool usePath = !rect.isSimple();
|
| - // another two reasons we might need to call drawPath...
|
| - if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| - usePath = true;
|
| - }
|
| - // until we can rotate rrects...
|
| - if (!usePath && !fContext->getMatrix().rectStaysRect()) {
|
| - usePath = true;
|
| - }
|
| -
|
| - if (usePath) {
|
| - SkPath path;
|
| - path.addRRect(rect);
|
| - this->drawPath(draw, path, paint, NULL, true);
|
| - return;
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - SkStrokeRec stroke(paint);
|
| - fContext->drawRRect(grPaint, rect, stroke);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -void SkGpuDevice::drawOval(const SkDraw& draw, const SkRect& oval,
|
| - const SkPaint& paint) {
|
| - CHECK_FOR_ANNOTATION(paint);
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - bool usePath = false;
|
| - // some basic reasons we might need to call drawPath...
|
| - if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| - usePath = true;
|
| - }
|
| -
|
| - if (usePath) {
|
| - SkPath path;
|
| - path.addOval(oval);
|
| - this->drawPath(draw, path, paint, NULL, true);
|
| - return;
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| - SkStrokeRec stroke(paint);
|
| -
|
| - fContext->drawOval(grPaint, oval, stroke);
|
| -}
|
| -
|
| -#include "SkMaskFilter.h"
|
| -#include "SkBounder.h"
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -// helpers for applying mask filters
|
| -namespace {
|
| -
|
| -// Draw a mask using the supplied paint. Since the coverage/geometry
|
| -// is already burnt into the mask this boils down to a rect draw.
|
| -// Return true if the mask was successfully drawn.
|
| -bool draw_mask(GrContext* context, const SkRect& maskRect,
|
| - GrPaint* grp, GrTexture* mask) {
|
| - GrContext::AutoMatrix am;
|
| - if (!am.setIdentity(context, grp)) {
|
| - return false;
|
| - }
|
| -
|
| - SkMatrix matrix;
|
| - matrix.setTranslate(-maskRect.fLeft, -maskRect.fTop);
|
| - matrix.postIDiv(mask->width(), mask->height());
|
| -
|
| - grp->addCoverageEffect(GrSimpleTextureEffect::Create(mask, matrix))->unref();
|
| - context->drawRect(*grp, maskRect);
|
| - return true;
|
| -}
|
| -
|
| -bool draw_with_mask_filter(GrContext* context, const SkPath& devPath,
|
| - SkMaskFilter* filter, const SkRegion& clip, SkBounder* bounder,
|
| - GrPaint* grp, SkPaint::Style style) {
|
| - SkMask srcM, dstM;
|
| -
|
| - if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), filter, &context->getMatrix(), &srcM,
|
| - SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) {
|
| - return false;
|
| - }
|
| - SkAutoMaskFreeImage autoSrc(srcM.fImage);
|
| -
|
| - if (!filter->filterMask(&dstM, srcM, context->getMatrix(), NULL)) {
|
| - return false;
|
| - }
|
| - // this will free-up dstM when we're done (allocated in filterMask())
|
| - SkAutoMaskFreeImage autoDst(dstM.fImage);
|
| -
|
| - if (clip.quickReject(dstM.fBounds)) {
|
| - return false;
|
| - }
|
| - if (bounder && !bounder->doIRect(dstM.fBounds)) {
|
| - return false;
|
| - }
|
| -
|
| - // we now have a device-aligned 8bit mask in dstM, ready to be drawn using
|
| - // the current clip (and identity matrix) and GrPaint settings
|
| - GrTextureDesc desc;
|
| - desc.fWidth = dstM.fBounds.width();
|
| - desc.fHeight = dstM.fBounds.height();
|
| - desc.fConfig = kAlpha_8_GrPixelConfig;
|
| -
|
| - GrAutoScratchTexture ast(context, desc);
|
| - GrTexture* texture = ast.texture();
|
| -
|
| - if (NULL == texture) {
|
| - return false;
|
| - }
|
| - texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
|
| - dstM.fImage, dstM.fRowBytes);
|
| -
|
| - SkRect maskRect = SkRect::Make(dstM.fBounds);
|
| -
|
| - return draw_mask(context, maskRect, grp, texture);
|
| -}
|
| -
|
| -// Create a mask of 'devPath' and place the result in 'mask'. Return true on
|
| -// success; false otherwise.
|
| -bool create_mask_GPU(GrContext* context,
|
| - const SkRect& maskRect,
|
| - const SkPath& devPath,
|
| - const SkStrokeRec& stroke,
|
| - bool doAA,
|
| - GrAutoScratchTexture* mask) {
|
| - GrTextureDesc desc;
|
| - desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| - desc.fWidth = SkScalarCeilToInt(maskRect.width());
|
| - desc.fHeight = SkScalarCeilToInt(maskRect.height());
|
| - // We actually only need A8, but it often isn't supported as a
|
| - // render target so default to RGBA_8888
|
| - desc.fConfig = kRGBA_8888_GrPixelConfig;
|
| - if (context->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) {
|
| - desc.fConfig = kAlpha_8_GrPixelConfig;
|
| - }
|
| -
|
| - mask->set(context, desc);
|
| - if (NULL == mask->texture()) {
|
| - return false;
|
| - }
|
| -
|
| - GrTexture* maskTexture = mask->texture();
|
| - SkRect clipRect = SkRect::MakeWH(maskRect.width(), maskRect.height());
|
| -
|
| - GrContext::AutoRenderTarget art(context, maskTexture->asRenderTarget());
|
| - GrContext::AutoClip ac(context, clipRect);
|
| -
|
| - context->clear(NULL, 0x0, true);
|
| -
|
| - GrPaint tempPaint;
|
| - if (doAA) {
|
| - tempPaint.setAntiAlias(true);
|
| - // AA uses the "coverage" stages on GrDrawTarget. Coverage with a dst
|
| - // blend coeff of zero requires dual source blending support in order
|
| - // to properly blend partially covered pixels. This means the AA
|
| - // code path may not be taken. So we use a dst blend coeff of ISA. We
|
| - // could special case AA draws to a dst surface with known alpha=0 to
|
| - // use a zero dst coeff when dual source blending isn't available.
|
| - tempPaint.setBlendFunc(kOne_GrBlendCoeff, kISC_GrBlendCoeff);
|
| - }
|
| -
|
| - GrContext::AutoMatrix am;
|
| -
|
| - // Draw the mask into maskTexture with the path's top-left at the origin using tempPaint.
|
| - SkMatrix translate;
|
| - translate.setTranslate(-maskRect.fLeft, -maskRect.fTop);
|
| - am.set(context, translate);
|
| - context->drawPath(tempPaint, devPath, stroke);
|
| - return true;
|
| -}
|
| -
|
| -SkBitmap wrap_texture(GrTexture* texture) {
|
| - SkBitmap result;
|
| - bool dummy;
|
| - SkBitmap::Config config = grConfig2skConfig(texture->config(), &dummy);
|
| - result.setConfig(config, texture->width(), texture->height());
|
| - result.setPixelRef(SkNEW_ARGS(SkGrPixelRef, (texture)))->unref();
|
| - return result;
|
| -}
|
| -
|
| -};
|
| -
|
| -void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
|
| - const SkPaint& paint, const SkMatrix* prePathMatrix,
|
| - bool pathIsMutable) {
|
| - CHECK_FOR_ANNOTATION(paint);
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - // can we cheat, and treat a thin stroke as a hairline w/ coverage
|
| - // if we can, we draw lots faster (raster device does this same test)
|
| - SkScalar hairlineCoverage;
|
| - bool doHairLine = SkDrawTreatAsHairline(paint, fContext->getMatrix(), &hairlineCoverage);
|
| - if (doHairLine) {
|
| - grPaint.setCoverage(SkScalarRoundToInt(hairlineCoverage * grPaint.getCoverage()));
|
| - }
|
| -
|
| - // If we have a prematrix, apply it to the path, optimizing for the case
|
| - // where the original path can in fact be modified in place (even though
|
| - // its parameter type is const).
|
| - SkPath* pathPtr = const_cast<SkPath*>(&origSrcPath);
|
| - SkPath tmpPath, effectPath;
|
| -
|
| - if (prePathMatrix) {
|
| - SkPath* result = pathPtr;
|
| -
|
| - if (!pathIsMutable) {
|
| - result = &tmpPath;
|
| - pathIsMutable = true;
|
| - }
|
| - // should I push prePathMatrix on our MV stack temporarily, instead
|
| - // of applying it here? See SkDraw.cpp
|
| - pathPtr->transform(*prePathMatrix, result);
|
| - pathPtr = result;
|
| - }
|
| - // at this point we're done with prePathMatrix
|
| - SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;)
|
| -
|
| - SkStrokeRec stroke(paint);
|
| - SkPathEffect* pathEffect = paint.getPathEffect();
|
| - const SkRect* cullRect = NULL; // TODO: what is our bounds?
|
| - if (pathEffect && pathEffect->filterPath(&effectPath, *pathPtr, &stroke,
|
| - cullRect)) {
|
| - pathPtr = &effectPath;
|
| - }
|
| -
|
| - if (!pathEffect && doHairLine) {
|
| - stroke.setHairlineStyle();
|
| - }
|
| -
|
| - if (paint.getMaskFilter()) {
|
| - if (!stroke.isHairlineStyle()) {
|
| - if (stroke.applyToPath(&tmpPath, *pathPtr)) {
|
| - pathPtr = &tmpPath;
|
| - pathIsMutable = true;
|
| - stroke.setFillStyle();
|
| - }
|
| - }
|
| -
|
| - // avoid possibly allocating a new path in transform if we can
|
| - SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath;
|
| -
|
| - // transform the path into device space
|
| - pathPtr->transform(fContext->getMatrix(), devPathPtr);
|
| -
|
| - SkRect maskRect;
|
| - if (paint.getMaskFilter()->canFilterMaskGPU(devPathPtr->getBounds(),
|
| - draw.fClip->getBounds(),
|
| - fContext->getMatrix(),
|
| - &maskRect)) {
|
| - SkIRect finalIRect;
|
| - maskRect.roundOut(&finalIRect);
|
| - if (draw.fClip->quickReject(finalIRect)) {
|
| - // clipped out
|
| - return;
|
| - }
|
| - if (NULL != draw.fBounder && !draw.fBounder->doIRect(finalIRect)) {
|
| - // nothing to draw
|
| - return;
|
| - }
|
| -
|
| - GrAutoScratchTexture mask;
|
| -
|
| - if (create_mask_GPU(fContext, maskRect, *devPathPtr, stroke,
|
| - grPaint.isAntiAlias(), &mask)) {
|
| - GrTexture* filtered;
|
| -
|
| - if (paint.getMaskFilter()->filterMaskGPU(mask.texture(), maskRect, &filtered, true)) {
|
| - // filterMaskGPU gives us ownership of a ref to the result
|
| - SkAutoTUnref<GrTexture> atu(filtered);
|
| -
|
| - // If the scratch texture that we used as the filter src also holds the filter
|
| - // result then we must detach so that this texture isn't recycled for a later
|
| - // draw.
|
| - if (filtered == mask.texture()) {
|
| - mask.detach();
|
| - filtered->unref(); // detach transfers GrAutoScratchTexture's ref to us.
|
| - }
|
| -
|
| - if (draw_mask(fContext, maskRect, &grPaint, filtered)) {
|
| - // This path is completely drawn
|
| - return;
|
| - }
|
| - }
|
| - }
|
| - }
|
| -
|
| - // draw the mask on the CPU - this is a fallthrough path in case the
|
| - // GPU path fails
|
| - SkPaint::Style style = stroke.isHairlineStyle() ? SkPaint::kStroke_Style :
|
| - SkPaint::kFill_Style;
|
| - draw_with_mask_filter(fContext, *devPathPtr, paint.getMaskFilter(),
|
| - *draw.fClip, draw.fBounder, &grPaint, style);
|
| - return;
|
| - }
|
| -
|
| - fContext->drawPath(grPaint, *pathPtr, stroke);
|
| -}
|
| -
|
| -static const int kBmpSmallTileSize = 1 << 10;
|
| -
|
| -static inline int get_tile_count(const SkIRect& srcRect, int tileSize) {
|
| - int tilesX = (srcRect.fRight / tileSize) - (srcRect.fLeft / tileSize) + 1;
|
| - int tilesY = (srcRect.fBottom / tileSize) - (srcRect.fTop / tileSize) + 1;
|
| - return tilesX * tilesY;
|
| -}
|
| -
|
| -static int determine_tile_size(const SkBitmap& bitmap, const SkIRect& src, int maxTileSize) {
|
| - if (maxTileSize <= kBmpSmallTileSize) {
|
| - return maxTileSize;
|
| - }
|
| -
|
| - size_t maxTileTotalTileSize = get_tile_count(src, maxTileSize);
|
| - size_t smallTotalTileSize = get_tile_count(src, kBmpSmallTileSize);
|
| -
|
| - maxTileTotalTileSize *= maxTileSize * maxTileSize;
|
| - smallTotalTileSize *= kBmpSmallTileSize * kBmpSmallTileSize;
|
| -
|
| - if (maxTileTotalTileSize > 2 * smallTotalTileSize) {
|
| - return kBmpSmallTileSize;
|
| - } else {
|
| - return maxTileSize;
|
| - }
|
| -}
|
| -
|
| -// Given a bitmap, an optional src rect, and a context with a clip and matrix determine what
|
| -// pixels from the bitmap are necessary.
|
| -static void determine_clipped_src_rect(const GrContext* context,
|
| - const SkBitmap& bitmap,
|
| - const SkRect* srcRectPtr,
|
| - SkIRect* clippedSrcIRect) {
|
| - const GrClipData* clip = context->getClip();
|
| - clip->getConservativeBounds(context->getRenderTarget(), clippedSrcIRect, NULL);
|
| - SkMatrix inv;
|
| - if (!context->getMatrix().invert(&inv)) {
|
| - clippedSrcIRect->setEmpty();
|
| - return;
|
| - }
|
| - SkRect clippedSrcRect = SkRect::Make(*clippedSrcIRect);
|
| - inv.mapRect(&clippedSrcRect);
|
| - if (NULL != srcRectPtr) {
|
| - if (!clippedSrcRect.intersect(*srcRectPtr)) {
|
| - clippedSrcIRect->setEmpty();
|
| - return;
|
| - }
|
| - }
|
| - clippedSrcRect.roundOut(clippedSrcIRect);
|
| - SkIRect bmpBounds = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| - if (!clippedSrcIRect->intersect(bmpBounds)) {
|
| - clippedSrcIRect->setEmpty();
|
| - }
|
| -}
|
| -
|
| -bool SkGpuDevice::shouldTileBitmap(const SkBitmap& bitmap,
|
| - const GrTextureParams& params,
|
| - const SkRect* srcRectPtr,
|
| - int maxTileSize,
|
| - int* tileSize,
|
| - SkIRect* clippedSrcRect) const {
|
| - // if bitmap is explictly texture backed then just use the texture
|
| - if (NULL != bitmap.getTexture()) {
|
| - return false;
|
| - }
|
| -
|
| - // if it's larger than the max tile size, then we have no choice but tiling.
|
| - if (bitmap.width() > maxTileSize || bitmap.height() > maxTileSize) {
|
| - determine_clipped_src_rect(fContext, bitmap, srcRectPtr, clippedSrcRect);
|
| - *tileSize = determine_tile_size(bitmap, *clippedSrcRect, maxTileSize);
|
| - return true;
|
| - }
|
| -
|
| - if (bitmap.width() * bitmap.height() < 4 * kBmpSmallTileSize * kBmpSmallTileSize) {
|
| - return false;
|
| - }
|
| -
|
| - // if the entire texture is already in our cache then no reason to tile it
|
| - if (GrIsBitmapInCache(fContext, bitmap, ¶ms)) {
|
| - return false;
|
| - }
|
| -
|
| - // At this point we know we could do the draw by uploading the entire bitmap
|
| - // as a texture. However, if the texture would be large compared to the
|
| - // cache size and we don't require most of it for this draw then tile to
|
| - // reduce the amount of upload and cache spill.
|
| -
|
| - // assumption here is that sw bitmap size is a good proxy for its size as
|
| - // a texture
|
| - size_t bmpSize = bitmap.getSize();
|
| - size_t cacheSize;
|
| - fContext->getTextureCacheLimits(NULL, &cacheSize);
|
| - if (bmpSize < cacheSize / 2) {
|
| - return false;
|
| - }
|
| -
|
| - // Figure out how much of the src we will need based on the src rect and clipping.
|
| - determine_clipped_src_rect(fContext, bitmap, srcRectPtr, clippedSrcRect);
|
| - *tileSize = kBmpSmallTileSize; // already know whole bitmap fits in one max sized tile.
|
| - size_t usedTileBytes = get_tile_count(*clippedSrcRect, kBmpSmallTileSize) *
|
| - kBmpSmallTileSize * kBmpSmallTileSize;
|
| -
|
| - return usedTileBytes < 2 * bmpSize;
|
| -}
|
| -
|
| -void SkGpuDevice::drawBitmap(const SkDraw& draw,
|
| - const SkBitmap& bitmap,
|
| - const SkMatrix& m,
|
| - const SkPaint& paint) {
|
| - // We cannot call drawBitmapRect here since 'm' could be anything
|
| - this->drawBitmapCommon(draw, bitmap, NULL, m, paint,
|
| - SkCanvas::kNone_DrawBitmapRectFlag);
|
| -}
|
| -
|
| -// This method outsets 'iRect' by 1 all around and then clamps its extents to
|
| -// 'clamp'. 'offset' is adjusted to remain positioned over the top-left corner
|
| -// of 'iRect' for all possible outsets/clamps.
|
| -static inline void clamped_unit_outset_with_offset(SkIRect* iRect, SkPoint* offset,
|
| - const SkIRect& clamp) {
|
| - iRect->outset(1, 1);
|
| -
|
| - if (iRect->fLeft < clamp.fLeft) {
|
| - iRect->fLeft = clamp.fLeft;
|
| - } else {
|
| - offset->fX -= SK_Scalar1;
|
| - }
|
| - if (iRect->fTop < clamp.fTop) {
|
| - iRect->fTop = clamp.fTop;
|
| - } else {
|
| - offset->fY -= SK_Scalar1;
|
| - }
|
| -
|
| - if (iRect->fRight > clamp.fRight) {
|
| - iRect->fRight = clamp.fRight;
|
| - }
|
| - if (iRect->fBottom > clamp.fBottom) {
|
| - iRect->fBottom = clamp.fBottom;
|
| - }
|
| -}
|
| -
|
| -void SkGpuDevice::drawBitmapCommon(const SkDraw& draw,
|
| - const SkBitmap& bitmap,
|
| - const SkRect* srcRectPtr,
|
| - const SkMatrix& m,
|
| - const SkPaint& paint,
|
| - SkCanvas::DrawBitmapRectFlags flags) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - SkRect srcRect;
|
| - if (NULL == srcRectPtr) {
|
| - srcRect.set(0, 0, SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height()));
|
| - } else {
|
| - srcRect = *srcRectPtr;
|
| - }
|
| -
|
| - if (paint.getMaskFilter()){
|
| - // Convert the bitmap to a shader so that the rect can be drawn
|
| - // through drawRect, which supports mask filters.
|
| - SkMatrix newM(m);
|
| - SkBitmap tmp; // subset of bitmap, if necessary
|
| - const SkBitmap* bitmapPtr = &bitmap;
|
| - if (NULL != srcRectPtr) {
|
| - SkIRect iSrc;
|
| - srcRect.roundOut(&iSrc);
|
| -
|
| - SkPoint offset = SkPoint::Make(SkIntToScalar(iSrc.fLeft),
|
| - SkIntToScalar(iSrc.fTop));
|
| -
|
| - if (SkCanvas::kBleed_DrawBitmapRectFlag & flags) {
|
| - // In bleed mode we want to expand the src rect on all sides
|
| - // but stay within the bitmap bounds
|
| - SkIRect iClampRect = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| - clamped_unit_outset_with_offset(&iSrc, &offset, iClampRect);
|
| - }
|
| -
|
| - if (!bitmap.extractSubset(&tmp, iSrc)) {
|
| - return; // extraction failed
|
| - }
|
| - bitmapPtr = &tmp;
|
| - srcRect.offset(-offset.fX, -offset.fY);
|
| - // The source rect has changed so update the matrix
|
| - newM.preTranslate(offset.fX, offset.fY);
|
| - }
|
| -
|
| - SkPaint paintWithTexture(paint);
|
| - paintWithTexture.setShader(SkShader::CreateBitmapShader(*bitmapPtr,
|
| - SkShader::kClamp_TileMode, SkShader::kClamp_TileMode))->unref();
|
| -
|
| - // Transform 'newM' needs to be concatenated to the current matrix,
|
| - // rather than transforming the primitive directly, so that 'newM' will
|
| - // also affect the behavior of the mask filter.
|
| - SkMatrix drawMatrix;
|
| - drawMatrix.setConcat(fContext->getMatrix(), newM);
|
| - SkDraw transformedDraw(draw);
|
| - transformedDraw.fMatrix = &drawMatrix;
|
| -
|
| - this->drawRect(transformedDraw, srcRect, paintWithTexture);
|
| -
|
| - return;
|
| - }
|
| -
|
| - fContext->concatMatrix(m);
|
| -
|
| - GrTextureParams params;
|
| - SkPaint::FilterLevel paintFilterLevel = paint.getFilterLevel();
|
| - GrTextureParams::FilterMode textureFilterMode;
|
| - switch(paintFilterLevel) {
|
| - case SkPaint::kNone_FilterLevel:
|
| - textureFilterMode = GrTextureParams::kNone_FilterMode;
|
| - break;
|
| - case SkPaint::kLow_FilterLevel:
|
| - textureFilterMode = GrTextureParams::kBilerp_FilterMode;
|
| - break;
|
| - case SkPaint::kMedium_FilterLevel:
|
| - textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| - break;
|
| - case SkPaint::kHigh_FilterLevel:
|
| - // Fall back to mips for now
|
| - textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| - break;
|
| - default:
|
| - SkErrorInternals::SetError( kInvalidPaint_SkError,
|
| - "Sorry, I don't understand the filtering "
|
| - "mode you asked for. Falling back to "
|
| - "MIPMaps.");
|
| - textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| - break;
|
| -
|
| - }
|
| -
|
| - params.setFilterMode(textureFilterMode);
|
| -
|
| - int maxTileSize = fContext->getMaxTextureSize();
|
| - if (SkPaint::kNone_FilterLevel != paint.getFilterLevel()) {
|
| - // We may need a skosh more room if we have to bump out the tile
|
| - // by 1 pixel all around
|
| - maxTileSize -= 2;
|
| - }
|
| - int tileSize;
|
| -
|
| - SkIRect clippedSrcRect;
|
| - if (this->shouldTileBitmap(bitmap, params, srcRectPtr, maxTileSize, &tileSize,
|
| - &clippedSrcRect)) {
|
| - this->drawTiledBitmap(bitmap, srcRect, clippedSrcRect, params, paint, flags, tileSize);
|
| - } else {
|
| - // take the simple case
|
| - this->internalDrawBitmap(bitmap, srcRect, params, paint, flags);
|
| - }
|
| -}
|
| -
|
| -// Break 'bitmap' into several tiles to draw it since it has already
|
| -// been determined to be too large to fit in VRAM
|
| -void SkGpuDevice::drawTiledBitmap(const SkBitmap& bitmap,
|
| - const SkRect& srcRect,
|
| - const SkIRect& clippedSrcIRect,
|
| - const GrTextureParams& params,
|
| - const SkPaint& paint,
|
| - SkCanvas::DrawBitmapRectFlags flags,
|
| - int tileSize) {
|
| - SkRect clippedSrcRect = SkRect::Make(clippedSrcIRect);
|
| -
|
| - int nx = bitmap.width() / tileSize;
|
| - int ny = bitmap.height() / tileSize;
|
| - for (int x = 0; x <= nx; x++) {
|
| - for (int y = 0; y <= ny; y++) {
|
| - SkRect tileR;
|
| - tileR.set(SkIntToScalar(x * tileSize),
|
| - SkIntToScalar(y * tileSize),
|
| - SkIntToScalar((x + 1) * tileSize),
|
| - SkIntToScalar((y + 1) * tileSize));
|
| -
|
| - if (!SkRect::Intersects(tileR, clippedSrcRect)) {
|
| - continue;
|
| - }
|
| -
|
| - if (!tileR.intersect(srcRect)) {
|
| - continue;
|
| - }
|
| -
|
| - SkBitmap tmpB;
|
| - SkIRect iTileR;
|
| - tileR.roundOut(&iTileR);
|
| - SkPoint offset = SkPoint::Make(SkIntToScalar(iTileR.fLeft),
|
| - SkIntToScalar(iTileR.fTop));
|
| -
|
| - if (SkPaint::kNone_FilterLevel != paint.getFilterLevel()) {
|
| - SkIRect iClampRect;
|
| -
|
| - if (SkCanvas::kBleed_DrawBitmapRectFlag & flags) {
|
| - // In bleed mode we want to always expand the tile on all edges
|
| - // but stay within the bitmap bounds
|
| - iClampRect = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| - } else {
|
| - // In texture-domain/clamp mode we only want to expand the
|
| - // tile on edges interior to "srcRect" (i.e., we want to
|
| - // not bleed across the original clamped edges)
|
| - srcRect.roundOut(&iClampRect);
|
| - }
|
| -
|
| - clamped_unit_outset_with_offset(&iTileR, &offset, iClampRect);
|
| - }
|
| -
|
| - if (bitmap.extractSubset(&tmpB, iTileR)) {
|
| - // now offset it to make it "local" to our tmp bitmap
|
| - tileR.offset(-offset.fX, -offset.fY);
|
| - SkMatrix tmpM;
|
| - tmpM.setTranslate(offset.fX, offset.fY);
|
| - GrContext::AutoMatrix am;
|
| - am.setPreConcat(fContext, tmpM);
|
| - this->internalDrawBitmap(tmpB, tileR, params, paint, flags);
|
| - }
|
| - }
|
| - }
|
| -}
|
| -
|
| -static bool has_aligned_samples(const SkRect& srcRect,
|
| - const SkRect& transformedRect) {
|
| - // detect pixel disalignment
|
| - if (SkScalarAbs(SkScalarRoundToScalar(transformedRect.left()) -
|
| - transformedRect.left()) < COLOR_BLEED_TOLERANCE &&
|
| - SkScalarAbs(SkScalarRoundToScalar(transformedRect.top()) -
|
| - transformedRect.top()) < COLOR_BLEED_TOLERANCE &&
|
| - SkScalarAbs(transformedRect.width() - srcRect.width()) <
|
| - COLOR_BLEED_TOLERANCE &&
|
| - SkScalarAbs(transformedRect.height() - srcRect.height()) <
|
| - COLOR_BLEED_TOLERANCE) {
|
| - return true;
|
| - }
|
| - return false;
|
| -}
|
| -
|
| -static bool may_color_bleed(const SkRect& srcRect,
|
| - const SkRect& transformedRect,
|
| - const SkMatrix& m) {
|
| - // Only gets called if has_aligned_samples returned false.
|
| - // So we can assume that sampling is axis aligned but not texel aligned.
|
| - SkASSERT(!has_aligned_samples(srcRect, transformedRect));
|
| - SkRect innerSrcRect(srcRect), innerTransformedRect,
|
| - outerTransformedRect(transformedRect);
|
| - innerSrcRect.inset(SK_ScalarHalf, SK_ScalarHalf);
|
| - m.mapRect(&innerTransformedRect, innerSrcRect);
|
| -
|
| - // The gap between outerTransformedRect and innerTransformedRect
|
| - // represents the projection of the source border area, which is
|
| - // problematic for color bleeding. We must check whether any
|
| - // destination pixels sample the border area.
|
| - outerTransformedRect.inset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE);
|
| - innerTransformedRect.outset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE);
|
| - SkIRect outer, inner;
|
| - outerTransformedRect.round(&outer);
|
| - innerTransformedRect.round(&inner);
|
| - // If the inner and outer rects round to the same result, it means the
|
| - // border does not overlap any pixel centers. Yay!
|
| - return inner != outer;
|
| -}
|
| -
|
| -
|
| -/*
|
| - * This is called by drawBitmap(), which has to handle images that may be too
|
| - * large to be represented by a single texture.
|
| - *
|
| - * internalDrawBitmap assumes that the specified bitmap will fit in a texture
|
| - * and that non-texture portion of the GrPaint has already been setup.
|
| - */
|
| -void SkGpuDevice::internalDrawBitmap(const SkBitmap& bitmap,
|
| - const SkRect& srcRect,
|
| - const GrTextureParams& params,
|
| - const SkPaint& paint,
|
| - SkCanvas::DrawBitmapRectFlags flags) {
|
| - SkASSERT(bitmap.width() <= fContext->getMaxTextureSize() &&
|
| - bitmap.height() <= fContext->getMaxTextureSize());
|
| -
|
| - GrTexture* texture;
|
| - SkAutoCachedTexture act(this, bitmap, ¶ms, &texture);
|
| - if (NULL == texture) {
|
| - return;
|
| - }
|
| -
|
| - SkRect dstRect(srcRect);
|
| - SkRect paintRect;
|
| - SkScalar wInv = SkScalarInvert(SkIntToScalar(texture->width()));
|
| - SkScalar hInv = SkScalarInvert(SkIntToScalar(texture->height()));
|
| - paintRect.setLTRB(SkScalarMul(srcRect.fLeft, wInv),
|
| - SkScalarMul(srcRect.fTop, hInv),
|
| - SkScalarMul(srcRect.fRight, wInv),
|
| - SkScalarMul(srcRect.fBottom, hInv));
|
| -
|
| - bool needsTextureDomain = false;
|
| - if (!(flags & SkCanvas::kBleed_DrawBitmapRectFlag) &&
|
| - params.filterMode() != GrTextureParams::kNone_FilterMode) {
|
| - // Need texture domain if drawing a sub rect.
|
| - needsTextureDomain = srcRect.width() < bitmap.width() ||
|
| - srcRect.height() < bitmap.height();
|
| - if (needsTextureDomain && fContext->getMatrix().rectStaysRect()) {
|
| - const SkMatrix& matrix = fContext->getMatrix();
|
| - // sampling is axis-aligned
|
| - SkRect transformedRect;
|
| - matrix.mapRect(&transformedRect, srcRect);
|
| -
|
| - if (has_aligned_samples(srcRect, transformedRect)) {
|
| - // We could also turn off filtering here (but we already did a cache lookup with
|
| - // params).
|
| - needsTextureDomain = false;
|
| - } else {
|
| - needsTextureDomain = may_color_bleed(srcRect, transformedRect, matrix);
|
| - }
|
| - }
|
| - }
|
| -
|
| - SkRect textureDomain = SkRect::MakeEmpty();
|
| - SkAutoTUnref<GrEffectRef> effect;
|
| - if (needsTextureDomain) {
|
| - // Use a constrained texture domain to avoid color bleeding
|
| - SkScalar left, top, right, bottom;
|
| - if (srcRect.width() > SK_Scalar1) {
|
| - SkScalar border = SK_ScalarHalf / texture->width();
|
| - left = paintRect.left() + border;
|
| - right = paintRect.right() - border;
|
| - } else {
|
| - left = right = SkScalarHalf(paintRect.left() + paintRect.right());
|
| - }
|
| - if (srcRect.height() > SK_Scalar1) {
|
| - SkScalar border = SK_ScalarHalf / texture->height();
|
| - top = paintRect.top() + border;
|
| - bottom = paintRect.bottom() - border;
|
| - } else {
|
| - top = bottom = SkScalarHalf(paintRect.top() + paintRect.bottom());
|
| - }
|
| - textureDomain.setLTRB(left, top, right, bottom);
|
| - effect.reset(GrTextureDomainEffect::Create(texture,
|
| - SkMatrix::I(),
|
| - textureDomain,
|
| - GrTextureDomainEffect::kClamp_WrapMode,
|
| - params.filterMode()));
|
| - } else {
|
| - effect.reset(GrSimpleTextureEffect::Create(texture, SkMatrix::I(), params));
|
| - }
|
| -
|
| - // Construct a GrPaint by setting the bitmap texture as the first effect and then configuring
|
| - // the rest from the SkPaint.
|
| - GrPaint grPaint;
|
| - grPaint.addColorEffect(effect);
|
| - bool alphaOnly = !(SkBitmap::kA8_Config == bitmap.config());
|
| - if (!skPaint2GrPaintNoShader(this, paint, alphaOnly, false, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - fContext->drawRectToRect(grPaint, dstRect, paintRect, NULL);
|
| -}
|
| -
|
| -static bool filter_texture(SkBaseDevice* device, GrContext* context,
|
| - GrTexture* texture, SkImageFilter* filter,
|
| - int w, int h, const SkMatrix& ctm, SkBitmap* result,
|
| - SkIPoint* offset) {
|
| - SkASSERT(filter);
|
| - SkDeviceImageFilterProxy proxy(device);
|
| -
|
| - if (filter->canFilterImageGPU()) {
|
| - // Save the render target and set it to NULL, so we don't accidentally draw to it in the
|
| - // filter. Also set the clip wide open and the matrix to identity.
|
| - GrContext::AutoWideOpenIdentityDraw awo(context, NULL);
|
| - return filter->filterImageGPU(&proxy, wrap_texture(texture), ctm, result, offset);
|
| - } else {
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
|
| - int left, int top, const SkPaint& paint) {
|
| - // drawSprite is defined to be in device coords.
|
| - CHECK_SHOULD_DRAW(draw, true);
|
| -
|
| - SkAutoLockPixels alp(bitmap, !bitmap.getTexture());
|
| - if (!bitmap.getTexture() && !bitmap.readyToDraw()) {
|
| - return;
|
| - }
|
| -
|
| - int w = bitmap.width();
|
| - int h = bitmap.height();
|
| -
|
| - GrTexture* texture;
|
| - // draw sprite uses the default texture params
|
| - SkAutoCachedTexture act(this, bitmap, NULL, &texture);
|
| -
|
| - SkImageFilter* filter = paint.getImageFilter();
|
| - SkIPoint offset = SkIPoint::Make(left, top);
|
| - // This bitmap will own the filtered result as a texture.
|
| - SkBitmap filteredBitmap;
|
| -
|
| - if (NULL != filter) {
|
| - SkMatrix matrix(*draw.fMatrix);
|
| - matrix.postTranslate(SkIntToScalar(-left), SkIntToScalar(-top));
|
| - if (filter_texture(this, fContext, texture, filter, w, h, matrix, &filteredBitmap,
|
| - &offset)) {
|
| - texture = (GrTexture*) filteredBitmap.getTexture();
|
| - w = filteredBitmap.width();
|
| - h = filteredBitmap.height();
|
| - } else {
|
| - return;
|
| - }
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - grPaint.addColorTextureEffect(texture, SkMatrix::I());
|
| -
|
| - if(!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - fContext->drawRectToRect(grPaint,
|
| - SkRect::MakeXYWH(SkIntToScalar(offset.fX),
|
| - SkIntToScalar(offset.fY),
|
| - SkIntToScalar(w),
|
| - SkIntToScalar(h)),
|
| - SkRect::MakeXYWH(0,
|
| - 0,
|
| - SK_Scalar1 * w / texture->width(),
|
| - SK_Scalar1 * h / texture->height()));
|
| -}
|
| -
|
| -void SkGpuDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap,
|
| - const SkRect* src, const SkRect& dst,
|
| - const SkPaint& paint,
|
| - SkCanvas::DrawBitmapRectFlags flags) {
|
| - SkMatrix matrix;
|
| - SkRect bitmapBounds, tmpSrc;
|
| -
|
| - bitmapBounds.set(0, 0,
|
| - SkIntToScalar(bitmap.width()),
|
| - SkIntToScalar(bitmap.height()));
|
| -
|
| - // Compute matrix from the two rectangles
|
| - if (NULL != src) {
|
| - tmpSrc = *src;
|
| - } else {
|
| - tmpSrc = bitmapBounds;
|
| - }
|
| - matrix.setRectToRect(tmpSrc, dst, SkMatrix::kFill_ScaleToFit);
|
| -
|
| - // clip the tmpSrc to the bounds of the bitmap. No check needed if src==null.
|
| - if (NULL != src) {
|
| - if (!bitmapBounds.contains(tmpSrc)) {
|
| - if (!tmpSrc.intersect(bitmapBounds)) {
|
| - return; // nothing to draw
|
| - }
|
| - }
|
| - }
|
| -
|
| - this->drawBitmapCommon(draw, bitmap, &tmpSrc, matrix, paint, flags);
|
| -}
|
| -
|
| -void SkGpuDevice::drawDevice(const SkDraw& draw, SkBaseDevice* device,
|
| - int x, int y, const SkPaint& paint) {
|
| - // clear of the source device must occur before CHECK_SHOULD_DRAW
|
| - SkGpuDevice* dev = static_cast<SkGpuDevice*>(device);
|
| - if (dev->fNeedClear) {
|
| - // TODO: could check here whether we really need to draw at all
|
| - dev->clear(0x0);
|
| - }
|
| -
|
| - // drawDevice is defined to be in device coords.
|
| - CHECK_SHOULD_DRAW(draw, true);
|
| -
|
| - GrRenderTarget* devRT = dev->accessRenderTarget();
|
| - GrTexture* devTex;
|
| - if (NULL == (devTex = devRT->asTexture())) {
|
| - return;
|
| - }
|
| -
|
| - const SkBitmap& bm = dev->accessBitmap(false);
|
| - int w = bm.width();
|
| - int h = bm.height();
|
| -
|
| - SkImageFilter* filter = paint.getImageFilter();
|
| - // This bitmap will own the filtered result as a texture.
|
| - SkBitmap filteredBitmap;
|
| -
|
| - if (NULL != filter) {
|
| - SkIPoint offset = SkIPoint::Make(0, 0);
|
| - SkMatrix matrix(*draw.fMatrix);
|
| - matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
|
| - if (filter_texture(this, fContext, devTex, filter, w, h, matrix, &filteredBitmap,
|
| - &offset)) {
|
| - devTex = filteredBitmap.getTexture();
|
| - w = filteredBitmap.width();
|
| - h = filteredBitmap.height();
|
| - x += offset.fX;
|
| - y += offset.fY;
|
| - } else {
|
| - return;
|
| - }
|
| - }
|
| -
|
| - GrPaint grPaint;
|
| - grPaint.addColorTextureEffect(devTex, SkMatrix::I());
|
| -
|
| - if (!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(x),
|
| - SkIntToScalar(y),
|
| - SkIntToScalar(w),
|
| - SkIntToScalar(h));
|
| -
|
| - // The device being drawn may not fill up its texture (e.g. saveLayer uses approximate
|
| - // scratch texture).
|
| - SkRect srcRect = SkRect::MakeWH(SK_Scalar1 * w / devTex->width(),
|
| - SK_Scalar1 * h / devTex->height());
|
| -
|
| - fContext->drawRectToRect(grPaint, dstRect, srcRect);
|
| -}
|
| -
|
| -bool SkGpuDevice::canHandleImageFilter(SkImageFilter* filter) {
|
| - return filter->canFilterImageGPU();
|
| -}
|
| -
|
| -bool SkGpuDevice::filterImage(SkImageFilter* filter, const SkBitmap& src,
|
| - const SkMatrix& ctm,
|
| - SkBitmap* result, SkIPoint* offset) {
|
| - // want explicitly our impl, so guard against a subclass of us overriding it
|
| - if (!this->SkGpuDevice::canHandleImageFilter(filter)) {
|
| - return false;
|
| - }
|
| -
|
| - SkAutoLockPixels alp(src, !src.getTexture());
|
| - if (!src.getTexture() && !src.readyToDraw()) {
|
| - return false;
|
| - }
|
| -
|
| - GrTexture* texture;
|
| - // We assume here that the filter will not attempt to tile the src. Otherwise, this cache lookup
|
| - // must be pushed upstack.
|
| - SkAutoCachedTexture act(this, src, NULL, &texture);
|
| -
|
| - return filter_texture(this, fContext, texture, filter, src.width(), src.height(), ctm, result,
|
| - offset);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -// must be in SkCanvas::VertexMode order
|
| -static const GrPrimitiveType gVertexMode2PrimitiveType[] = {
|
| - kTriangles_GrPrimitiveType,
|
| - kTriangleStrip_GrPrimitiveType,
|
| - kTriangleFan_GrPrimitiveType,
|
| -};
|
| -
|
| -void SkGpuDevice::drawVertices(const SkDraw& draw, SkCanvas::VertexMode vmode,
|
| - int vertexCount, const SkPoint vertices[],
|
| - const SkPoint texs[], const SkColor colors[],
|
| - SkXfermode* xmode,
|
| - const uint16_t indices[], int indexCount,
|
| - const SkPaint& paint) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - GrPaint grPaint;
|
| - // we ignore the shader if texs is null.
|
| - if (NULL == texs) {
|
| - if (!skPaint2GrPaintNoShader(this, paint, false, NULL == colors, &grPaint)) {
|
| - return;
|
| - }
|
| - } else {
|
| - if (!skPaint2GrPaintShader(this, paint, NULL == colors, &grPaint)) {
|
| - return;
|
| - }
|
| - }
|
| -
|
| - if (NULL != xmode && NULL != texs && NULL != colors) {
|
| - if (!SkXfermode::IsMode(xmode, SkXfermode::kModulate_Mode)) {
|
| - SkDebugf("Unsupported vertex-color/texture xfer mode.\n");
|
| -#if 0
|
| - return
|
| -#endif
|
| - }
|
| - }
|
| -
|
| - SkAutoSTMalloc<128, GrColor> convertedColors(0);
|
| - if (NULL != colors) {
|
| - // need to convert byte order and from non-PM to PM
|
| - convertedColors.reset(vertexCount);
|
| - for (int i = 0; i < vertexCount; ++i) {
|
| - convertedColors[i] = SkColor2GrColor(colors[i]);
|
| - }
|
| - colors = convertedColors.get();
|
| - }
|
| - fContext->drawVertices(grPaint,
|
| - gVertexMode2PrimitiveType[vmode],
|
| - vertexCount,
|
| - (GrPoint*) vertices,
|
| - (GrPoint*) texs,
|
| - colors,
|
| - indices,
|
| - indexCount);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -static void GlyphCacheAuxProc(void* data) {
|
| - GrFontScaler* scaler = (GrFontScaler*)data;
|
| - SkSafeUnref(scaler);
|
| -}
|
| -
|
| -static GrFontScaler* get_gr_font_scaler(SkGlyphCache* cache) {
|
| - void* auxData;
|
| - GrFontScaler* scaler = NULL;
|
| - if (cache->getAuxProcData(GlyphCacheAuxProc, &auxData)) {
|
| - scaler = (GrFontScaler*)auxData;
|
| - }
|
| - if (NULL == scaler) {
|
| - scaler = SkNEW_ARGS(SkGrFontScaler, (cache));
|
| - cache->setAuxProc(GlyphCacheAuxProc, scaler);
|
| - }
|
| - return scaler;
|
| -}
|
| -
|
| -static void SkGPU_Draw1Glyph(const SkDraw1Glyph& state,
|
| - SkFixed fx, SkFixed fy,
|
| - const SkGlyph& glyph) {
|
| - SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0);
|
| -
|
| - GrSkDrawProcs* procs = static_cast<GrSkDrawProcs*>(state.fDraw->fProcs);
|
| -
|
| - if (NULL == procs->fFontScaler) {
|
| - procs->fFontScaler = get_gr_font_scaler(state.fCache);
|
| - }
|
| -
|
| - procs->fTextContext->drawPackedGlyph(GrGlyph::Pack(glyph.getGlyphID(),
|
| - glyph.getSubXFixed(),
|
| - glyph.getSubYFixed()),
|
| - SkFixedFloorToFixed(fx),
|
| - SkFixedFloorToFixed(fy),
|
| - procs->fFontScaler);
|
| -}
|
| -
|
| -SkDrawProcs* SkGpuDevice::initDrawForText(GrTextContext* context) {
|
| -
|
| - // deferred allocation
|
| - if (NULL == fDrawProcs) {
|
| - fDrawProcs = SkNEW(GrSkDrawProcs);
|
| - fDrawProcs->fD1GProc = SkGPU_Draw1Glyph;
|
| - fDrawProcs->fContext = fContext;
|
| - }
|
| -
|
| - // init our (and GL's) state
|
| - fDrawProcs->fTextContext = context;
|
| - fDrawProcs->fFontScaler = NULL;
|
| - return fDrawProcs;
|
| -}
|
| -
|
| -void SkGpuDevice::drawText(const SkDraw& draw, const void* text,
|
| - size_t byteLength, SkScalar x, SkScalar y,
|
| - const SkPaint& paint) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - if (fContext->getMatrix().hasPerspective()) {
|
| - // this guy will just call our drawPath()
|
| - draw.drawText((const char*)text, byteLength, x, y, paint);
|
| - } else {
|
| - SkDraw myDraw(draw);
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| -
|
| - GrBitmapTextContext context(fContext, grPaint, paint.getColor());
|
| - myDraw.fProcs = this->initDrawForText(&context);
|
| - this->INHERITED::drawText(myDraw, text, byteLength, x, y, paint);
|
| - }
|
| -}
|
| -
|
| -void SkGpuDevice::drawPosText(const SkDraw& draw, const void* text,
|
| - size_t byteLength, const SkScalar pos[],
|
| - SkScalar constY, int scalarsPerPos,
|
| - const SkPaint& paint) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - if (fContext->getMatrix().hasPerspective()) {
|
| - // this guy will just call our drawPath()
|
| - draw.drawPosText((const char*)text, byteLength, pos, constY,
|
| - scalarsPerPos, paint);
|
| - } else {
|
| - SkDraw myDraw(draw);
|
| -
|
| - GrPaint grPaint;
|
| - if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| - return;
|
| - }
|
| - GrBitmapTextContext context(fContext, grPaint, paint.getColor());
|
| - myDraw.fProcs = this->initDrawForText(&context);
|
| - this->INHERITED::drawPosText(myDraw, text, byteLength, pos, constY,
|
| - scalarsPerPos, paint);
|
| - }
|
| -}
|
| -
|
| -void SkGpuDevice::drawTextOnPath(const SkDraw& draw, const void* text,
|
| - size_t len, const SkPath& path,
|
| - const SkMatrix* m, const SkPaint& paint) {
|
| - CHECK_SHOULD_DRAW(draw, false);
|
| -
|
| - SkASSERT(draw.fDevice == this);
|
| - draw.drawTextOnPath((const char*)text, len, path, m, paint);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -bool SkGpuDevice::filterTextFlags(const SkPaint& paint, TextFlags* flags) {
|
| - if (!paint.isLCDRenderText()) {
|
| - // we're cool with the paint as is
|
| - return false;
|
| - }
|
| -
|
| - if (paint.getShader() ||
|
| - paint.getXfermode() || // unless its srcover
|
| - paint.getMaskFilter() ||
|
| - paint.getRasterizer() ||
|
| - paint.getColorFilter() ||
|
| - paint.getPathEffect() ||
|
| - paint.isFakeBoldText() ||
|
| - paint.getStyle() != SkPaint::kFill_Style) {
|
| - // turn off lcd
|
| - flags->fFlags = paint.getFlags() & ~SkPaint::kLCDRenderText_Flag;
|
| - flags->fHinting = paint.getHinting();
|
| - return true;
|
| - }
|
| - // we're cool with the paint as is
|
| - return false;
|
| -}
|
| -
|
| -void SkGpuDevice::flush() {
|
| - DO_DEFERRED_CLEAR();
|
| - fContext->resolveRenderTarget(fRenderTarget);
|
| -}
|
| -
|
| -///////////////////////////////////////////////////////////////////////////////
|
| -
|
| -SkBaseDevice* SkGpuDevice::onCreateCompatibleDevice(SkBitmap::Config config,
|
| - int width, int height,
|
| - bool isOpaque,
|
| - Usage usage) {
|
| - GrTextureDesc desc;
|
| - desc.fConfig = fRenderTarget->config();
|
| - desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| - desc.fWidth = width;
|
| - desc.fHeight = height;
|
| - desc.fSampleCnt = fRenderTarget->numSamples();
|
| -
|
| - SkAutoTUnref<GrTexture> texture;
|
| - // Skia's convention is to only clear a device if it is non-opaque.
|
| - bool needClear = !isOpaque;
|
| -
|
| -#if CACHE_COMPATIBLE_DEVICE_TEXTURES
|
| - // layers are never draw in repeat modes, so we can request an approx
|
| - // match and ignore any padding.
|
| - const GrContext::ScratchTexMatch match = (kSaveLayer_Usage == usage) ?
|
| - GrContext::kApprox_ScratchTexMatch :
|
| - GrContext::kExact_ScratchTexMatch;
|
| - texture.reset(fContext->lockAndRefScratchTexture(desc, match));
|
| -#else
|
| - texture.reset(fContext->createUncachedTexture(desc, NULL, 0));
|
| -#endif
|
| - if (NULL != texture.get()) {
|
| - return SkNEW_ARGS(SkGpuDevice,(fContext, texture, needClear));
|
| - } else {
|
| - GrPrintf("---- failed to create compatible device texture [%d %d]\n", width, height);
|
| - return NULL;
|
| - }
|
| -}
|
| -
|
| -SkGpuDevice::SkGpuDevice(GrContext* context,
|
| - GrTexture* texture,
|
| - bool needClear)
|
| - : SkBitmapDevice(make_bitmap(context, texture->asRenderTarget())) {
|
| -
|
| - SkASSERT(texture && texture->asRenderTarget());
|
| - // This constructor is called from onCreateCompatibleDevice. It has locked the RT in the texture
|
| - // cache. We pass true for the third argument so that it will get unlocked.
|
| - this->initFromRenderTarget(context, texture->asRenderTarget(), true);
|
| - fNeedClear = needClear;
|
| -}
|
| +/*
|
| + * 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 "SkGpuDevice.h"
|
| +
|
| +#include "effects/GrTextureDomainEffect.h"
|
| +#include "effects/GrSimpleTextureEffect.h"
|
| +
|
| +#include "GrContext.h"
|
| +#include "GrBitmapTextContext.h"
|
| +#if SK_DISTANCEFIELD_FONTS
|
| +#include "GrDistanceFieldTextContext.h"
|
| +#endif
|
| +
|
| +#include "SkGrTexturePixelRef.h"
|
| +
|
| +#include "SkColorFilter.h"
|
| +#include "SkDeviceImageFilterProxy.h"
|
| +#include "SkDrawProcs.h"
|
| +#include "SkGlyphCache.h"
|
| +#include "SkImageFilter.h"
|
| +#include "SkPathEffect.h"
|
| +#include "SkRRect.h"
|
| +#include "SkStroke.h"
|
| +#include "SkUtils.h"
|
| +#include "SkErrorInternals.h"
|
| +
|
| +#define CACHE_COMPATIBLE_DEVICE_TEXTURES 1
|
| +
|
| +#if 0
|
| + extern bool (*gShouldDrawProc)();
|
| + #define CHECK_SHOULD_DRAW(draw, forceI) \
|
| + do { \
|
| + if (gShouldDrawProc && !gShouldDrawProc()) return; \
|
| + this->prepareDraw(draw, forceI); \
|
| + } while (0)
|
| +#else
|
| + #define CHECK_SHOULD_DRAW(draw, forceI) this->prepareDraw(draw, forceI)
|
| +#endif
|
| +
|
| +// This constant represents the screen alignment criterion in texels for
|
| +// requiring texture domain clamping to prevent color bleeding when drawing
|
| +// a sub region of a larger source image.
|
| +#define COLOR_BLEED_TOLERANCE SkFloatToScalar(0.001f)
|
| +
|
| +#define DO_DEFERRED_CLEAR() \
|
| + do { \
|
| + if (fNeedClear) { \
|
| + this->clear(SK_ColorTRANSPARENT); \
|
| + } \
|
| + } while (false) \
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +#define CHECK_FOR_ANNOTATION(paint) \
|
| + do { if (paint.getAnnotation()) { return; } } while (0)
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +
|
| +class SkGpuDevice::SkAutoCachedTexture : public ::SkNoncopyable {
|
| +public:
|
| + SkAutoCachedTexture()
|
| + : fDevice(NULL)
|
| + , fTexture(NULL) {
|
| + }
|
| +
|
| + SkAutoCachedTexture(SkGpuDevice* device,
|
| + const SkBitmap& bitmap,
|
| + const GrTextureParams* params,
|
| + GrTexture** texture)
|
| + : fDevice(NULL)
|
| + , fTexture(NULL) {
|
| + SkASSERT(NULL != texture);
|
| + *texture = this->set(device, bitmap, params);
|
| + }
|
| +
|
| + ~SkAutoCachedTexture() {
|
| + if (NULL != fTexture) {
|
| + GrUnlockAndUnrefCachedBitmapTexture(fTexture);
|
| + }
|
| + }
|
| +
|
| + GrTexture* set(SkGpuDevice* device,
|
| + const SkBitmap& bitmap,
|
| + const GrTextureParams* params) {
|
| + if (NULL != fTexture) {
|
| + GrUnlockAndUnrefCachedBitmapTexture(fTexture);
|
| + fTexture = NULL;
|
| + }
|
| + fDevice = device;
|
| + GrTexture* result = (GrTexture*)bitmap.getTexture();
|
| + if (NULL == result) {
|
| + // Cannot return the native texture so look it up in our cache
|
| + fTexture = GrLockAndRefCachedBitmapTexture(device->context(), bitmap, params);
|
| + result = fTexture;
|
| + }
|
| + return result;
|
| + }
|
| +
|
| +private:
|
| + SkGpuDevice* fDevice;
|
| + GrTexture* fTexture;
|
| +};
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +struct GrSkDrawProcs : public SkDrawProcs {
|
| +public:
|
| + GrContext* fContext;
|
| + GrTextContext* fTextContext;
|
| + GrFontScaler* fFontScaler; // cached in the skia glyphcache
|
| +};
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +static SkBitmap::Config grConfig2skConfig(GrPixelConfig config, bool* isOpaque) {
|
| + switch (config) {
|
| + case kAlpha_8_GrPixelConfig:
|
| + *isOpaque = false;
|
| + return SkBitmap::kA8_Config;
|
| + case kRGB_565_GrPixelConfig:
|
| + *isOpaque = true;
|
| + return SkBitmap::kRGB_565_Config;
|
| + case kRGBA_4444_GrPixelConfig:
|
| + *isOpaque = false;
|
| + return SkBitmap::kARGB_4444_Config;
|
| + case kSkia8888_GrPixelConfig:
|
| + // we don't currently have a way of knowing whether
|
| + // a 8888 is opaque based on the config.
|
| + *isOpaque = false;
|
| + return SkBitmap::kARGB_8888_Config;
|
| + default:
|
| + *isOpaque = false;
|
| + return SkBitmap::kNo_Config;
|
| + }
|
| +}
|
| +
|
| +/*
|
| + * GrRenderTarget does not know its opaqueness, only its config, so we have
|
| + * to make conservative guesses when we return an "equivalent" bitmap.
|
| + */
|
| +static SkBitmap make_bitmap(GrContext* context, GrRenderTarget* renderTarget) {
|
| + bool isOpaque;
|
| + SkBitmap::Config config = grConfig2skConfig(renderTarget->config(), &isOpaque);
|
| +
|
| + SkBitmap bitmap;
|
| + bitmap.setConfig(config, renderTarget->width(), renderTarget->height(), 0,
|
| + isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
|
| + return bitmap;
|
| +}
|
| +
|
| +SkGpuDevice* SkGpuDevice::Create(GrSurface* surface) {
|
| + SkASSERT(NULL != surface);
|
| + if (NULL == surface->asRenderTarget() || NULL == surface->getContext()) {
|
| + return NULL;
|
| + }
|
| + if (surface->asTexture()) {
|
| + return SkNEW_ARGS(SkGpuDevice, (surface->getContext(), surface->asTexture()));
|
| + } else {
|
| + return SkNEW_ARGS(SkGpuDevice, (surface->getContext(), surface->asRenderTarget()));
|
| + }
|
| +}
|
| +
|
| +SkGpuDevice::SkGpuDevice(GrContext* context, GrTexture* texture)
|
| + : SkBitmapDevice(make_bitmap(context, texture->asRenderTarget())) {
|
| + this->initFromRenderTarget(context, texture->asRenderTarget(), false);
|
| +}
|
| +
|
| +SkGpuDevice::SkGpuDevice(GrContext* context, GrRenderTarget* renderTarget)
|
| + : SkBitmapDevice(make_bitmap(context, renderTarget)) {
|
| + this->initFromRenderTarget(context, renderTarget, false);
|
| +}
|
| +
|
| +void SkGpuDevice::initFromRenderTarget(GrContext* context,
|
| + GrRenderTarget* renderTarget,
|
| + bool cached) {
|
| + fDrawProcs = NULL;
|
| +
|
| + fContext = context;
|
| + fContext->ref();
|
| +
|
| + fRenderTarget = NULL;
|
| + fNeedClear = false;
|
| +
|
| + SkASSERT(NULL != renderTarget);
|
| + fRenderTarget = renderTarget;
|
| + fRenderTarget->ref();
|
| +
|
| + // Hold onto to the texture in the pixel ref (if there is one) because the texture holds a ref
|
| + // on the RT but not vice-versa.
|
| + // TODO: Remove this trickery once we figure out how to make SkGrPixelRef do this without
|
| + // busting chrome (for a currently unknown reason).
|
| + GrSurface* surface = fRenderTarget->asTexture();
|
| + if (NULL == surface) {
|
| + surface = fRenderTarget;
|
| + }
|
| + SkPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (surface, cached));
|
| +
|
| + this->setPixelRef(pr, 0)->unref();
|
| +}
|
| +
|
| +SkGpuDevice::SkGpuDevice(GrContext* context,
|
| + SkBitmap::Config config,
|
| + int width,
|
| + int height,
|
| + int sampleCount)
|
| + : SkBitmapDevice(config, width, height, false /*isOpaque*/) {
|
| +
|
| + fDrawProcs = NULL;
|
| +
|
| + fContext = context;
|
| + fContext->ref();
|
| +
|
| + fRenderTarget = NULL;
|
| + fNeedClear = false;
|
| +
|
| + if (config != SkBitmap::kRGB_565_Config) {
|
| + config = SkBitmap::kARGB_8888_Config;
|
| + }
|
| +
|
| + GrTextureDesc desc;
|
| + desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| + desc.fWidth = width;
|
| + desc.fHeight = height;
|
| + desc.fConfig = SkBitmapConfig2GrPixelConfig(config);
|
| + desc.fSampleCnt = sampleCount;
|
| +
|
| + SkAutoTUnref<GrTexture> texture(fContext->createUncachedTexture(desc, NULL, 0));
|
| +
|
| + if (NULL != texture) {
|
| + fRenderTarget = texture->asRenderTarget();
|
| + fRenderTarget->ref();
|
| +
|
| + SkASSERT(NULL != fRenderTarget);
|
| +
|
| + // wrap the bitmap with a pixelref to expose our texture
|
| + SkGrPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (texture));
|
| + this->setPixelRef(pr, 0)->unref();
|
| + } else {
|
| + GrPrintf("--- failed to create gpu-offscreen [%d %d]\n",
|
| + width, height);
|
| + SkASSERT(false);
|
| + }
|
| +}
|
| +
|
| +SkGpuDevice::~SkGpuDevice() {
|
| + if (fDrawProcs) {
|
| + delete fDrawProcs;
|
| + }
|
| +
|
| + // The GrContext takes a ref on the target. We don't want to cause the render
|
| + // target to be unnecessarily kept alive.
|
| + if (fContext->getRenderTarget() == fRenderTarget) {
|
| + fContext->setRenderTarget(NULL);
|
| + }
|
| +
|
| + if (fContext->getClip() == &fClipData) {
|
| + fContext->setClip(NULL);
|
| + }
|
| +
|
| + SkSafeUnref(fRenderTarget);
|
| + fContext->unref();
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +void SkGpuDevice::makeRenderTargetCurrent() {
|
| + DO_DEFERRED_CLEAR();
|
| + fContext->setRenderTarget(fRenderTarget);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +namespace {
|
| +GrPixelConfig config8888_to_grconfig_and_flags(SkCanvas::Config8888 config8888, uint32_t* flags) {
|
| + switch (config8888) {
|
| + case SkCanvas::kNative_Premul_Config8888:
|
| + *flags = 0;
|
| + return kSkia8888_GrPixelConfig;
|
| + case SkCanvas::kNative_Unpremul_Config8888:
|
| + *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| + return kSkia8888_GrPixelConfig;
|
| + case SkCanvas::kBGRA_Premul_Config8888:
|
| + *flags = 0;
|
| + return kBGRA_8888_GrPixelConfig;
|
| + case SkCanvas::kBGRA_Unpremul_Config8888:
|
| + *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| + return kBGRA_8888_GrPixelConfig;
|
| + case SkCanvas::kRGBA_Premul_Config8888:
|
| + *flags = 0;
|
| + return kRGBA_8888_GrPixelConfig;
|
| + case SkCanvas::kRGBA_Unpremul_Config8888:
|
| + *flags = GrContext::kUnpremul_PixelOpsFlag;
|
| + return kRGBA_8888_GrPixelConfig;
|
| + default:
|
| + GrCrash("Unexpected Config8888.");
|
| + *flags = 0; // suppress warning
|
| + return kSkia8888_GrPixelConfig;
|
| + }
|
| +}
|
| +}
|
| +
|
| +bool SkGpuDevice::onReadPixels(const SkBitmap& bitmap,
|
| + int x, int y,
|
| + SkCanvas::Config8888 config8888) {
|
| + DO_DEFERRED_CLEAR();
|
| + SkASSERT(SkBitmap::kARGB_8888_Config == bitmap.config());
|
| + SkASSERT(!bitmap.isNull());
|
| + SkASSERT(SkIRect::MakeWH(this->width(), this->height()).contains(SkIRect::MakeXYWH(x, y, bitmap.width(), bitmap.height())));
|
| +
|
| + SkAutoLockPixels alp(bitmap);
|
| + GrPixelConfig config;
|
| + uint32_t flags;
|
| + config = config8888_to_grconfig_and_flags(config8888, &flags);
|
| + return fContext->readRenderTargetPixels(fRenderTarget,
|
| + x, y,
|
| + bitmap.width(),
|
| + bitmap.height(),
|
| + config,
|
| + bitmap.getPixels(),
|
| + bitmap.rowBytes(),
|
| + flags);
|
| +}
|
| +
|
| +void SkGpuDevice::writePixels(const SkBitmap& bitmap, int x, int y,
|
| + SkCanvas::Config8888 config8888) {
|
| + SkAutoLockPixels alp(bitmap);
|
| + if (!bitmap.readyToDraw()) {
|
| + return;
|
| + }
|
| +
|
| + GrPixelConfig config;
|
| + uint32_t flags;
|
| + if (SkBitmap::kARGB_8888_Config == bitmap.config()) {
|
| + config = config8888_to_grconfig_and_flags(config8888, &flags);
|
| + } else {
|
| + flags = 0;
|
| + config= SkBitmapConfig2GrPixelConfig(bitmap.config());
|
| + }
|
| +
|
| + fRenderTarget->writePixels(x, y, bitmap.width(), bitmap.height(),
|
| + config, bitmap.getPixels(), bitmap.rowBytes(), flags);
|
| +}
|
| +
|
| +namespace {
|
| +void purgeClipCB(int genID, void* ) {
|
| +
|
| + if (SkClipStack::kInvalidGenID == genID ||
|
| + SkClipStack::kEmptyGenID == genID ||
|
| + SkClipStack::kWideOpenGenID == genID) {
|
| + // none of these cases will have a cached clip mask
|
| + return;
|
| + }
|
| +
|
| +}
|
| +};
|
| +
|
| +void SkGpuDevice::onAttachToCanvas(SkCanvas* canvas) {
|
| + INHERITED::onAttachToCanvas(canvas);
|
| +
|
| + // Canvas promises that this ptr is valid until onDetachFromCanvas is called
|
| + fClipData.fClipStack = canvas->getClipStack();
|
| +
|
| + fClipData.fClipStack->addPurgeClipCallback(purgeClipCB, fContext);
|
| +}
|
| +
|
| +void SkGpuDevice::onDetachFromCanvas() {
|
| + INHERITED::onDetachFromCanvas();
|
| +
|
| + // TODO: iterate through the clip stack and clean up any cached clip masks
|
| + fClipData.fClipStack->removePurgeClipCallback(purgeClipCB, fContext);
|
| +
|
| + fClipData.fClipStack = NULL;
|
| +}
|
| +
|
| +// call this every draw call, to ensure that the context reflects our state,
|
| +// and not the state from some other canvas/device
|
| +void SkGpuDevice::prepareDraw(const SkDraw& draw, bool forceIdentity) {
|
| + SkASSERT(NULL != fClipData.fClipStack);
|
| +
|
| + fContext->setRenderTarget(fRenderTarget);
|
| +
|
| + SkASSERT(draw.fClipStack && draw.fClipStack == fClipData.fClipStack);
|
| +
|
| + if (forceIdentity) {
|
| + fContext->setIdentityMatrix();
|
| + } else {
|
| + fContext->setMatrix(*draw.fMatrix);
|
| + }
|
| + fClipData.fOrigin = this->getOrigin();
|
| +
|
| + fContext->setClip(&fClipData);
|
| +
|
| + DO_DEFERRED_CLEAR();
|
| +}
|
| +
|
| +GrRenderTarget* SkGpuDevice::accessRenderTarget() {
|
| + DO_DEFERRED_CLEAR();
|
| + return fRenderTarget;
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +SK_COMPILE_ASSERT(SkShader::kNone_BitmapType == 0, shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kDefault_BitmapType == 1, shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kRadial_BitmapType == 2, shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kSweep_BitmapType == 3, shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kTwoPointRadial_BitmapType == 4,
|
| + shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kTwoPointConical_BitmapType == 5,
|
| + shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kLinear_BitmapType == 6, shader_type_mismatch);
|
| +SK_COMPILE_ASSERT(SkShader::kLast_BitmapType == 6, shader_type_mismatch);
|
| +
|
| +namespace {
|
| +
|
| +// converts a SkPaint to a GrPaint, ignoring the skPaint's shader
|
| +// justAlpha indicates that skPaint's alpha should be used rather than the color
|
| +// Callers may subsequently modify the GrPaint. Setting constantColor indicates
|
| +// that the final paint will draw the same color at every pixel. This allows
|
| +// an optimization where the the color filter can be applied to the skPaint's
|
| +// color once while converting to GrPaint and then ignored.
|
| +inline bool skPaint2GrPaintNoShader(SkGpuDevice* dev,
|
| + const SkPaint& skPaint,
|
| + bool justAlpha,
|
| + bool constantColor,
|
| + GrPaint* grPaint) {
|
| +
|
| + grPaint->setDither(skPaint.isDither());
|
| + grPaint->setAntiAlias(skPaint.isAntiAlias());
|
| +
|
| + SkXfermode::Coeff sm;
|
| + SkXfermode::Coeff dm;
|
| +
|
| + SkXfermode* mode = skPaint.getXfermode();
|
| + GrEffectRef* xferEffect = NULL;
|
| + if (SkXfermode::AsNewEffectOrCoeff(mode, &xferEffect, &sm, &dm)) {
|
| + if (NULL != xferEffect) {
|
| + grPaint->addColorEffect(xferEffect)->unref();
|
| + sm = SkXfermode::kOne_Coeff;
|
| + dm = SkXfermode::kZero_Coeff;
|
| + }
|
| + } else {
|
| + //SkDEBUGCODE(SkDebugf("Unsupported xfer mode.\n");)
|
| +#if 0
|
| + return false;
|
| +#else
|
| + // Fall back to src-over
|
| + sm = SkXfermode::kOne_Coeff;
|
| + dm = SkXfermode::kISA_Coeff;
|
| +#endif
|
| + }
|
| + grPaint->setBlendFunc(sk_blend_to_grblend(sm), sk_blend_to_grblend(dm));
|
| +
|
| + if (justAlpha) {
|
| + uint8_t alpha = skPaint.getAlpha();
|
| + grPaint->setColor(GrColorPackRGBA(alpha, alpha, alpha, alpha));
|
| + // justAlpha is currently set to true only if there is a texture,
|
| + // so constantColor should not also be true.
|
| + SkASSERT(!constantColor);
|
| + } else {
|
| + grPaint->setColor(SkColor2GrColor(skPaint.getColor()));
|
| + }
|
| +
|
| + SkColorFilter* colorFilter = skPaint.getColorFilter();
|
| + if (NULL != colorFilter) {
|
| + // if the source color is a constant then apply the filter here once rather than per pixel
|
| + // in a shader.
|
| + if (constantColor) {
|
| + SkColor filtered = colorFilter->filterColor(skPaint.getColor());
|
| + grPaint->setColor(SkColor2GrColor(filtered));
|
| + } else {
|
| + SkAutoTUnref<GrEffectRef> effect(colorFilter->asNewEffect(dev->context()));
|
| + if (NULL != effect.get()) {
|
| + grPaint->addColorEffect(effect);
|
| + }
|
| + }
|
| + }
|
| +
|
| + return true;
|
| +}
|
| +
|
| +// This function is similar to skPaint2GrPaintNoShader but also converts
|
| +// skPaint's shader to a GrTexture/GrEffectStage if possible. The texture to
|
| +// be used is set on grPaint and returned in param act. constantColor has the
|
| +// same meaning as in skPaint2GrPaintNoShader.
|
| +inline bool skPaint2GrPaintShader(SkGpuDevice* dev,
|
| + const SkPaint& skPaint,
|
| + bool constantColor,
|
| + GrPaint* grPaint) {
|
| + SkShader* shader = skPaint.getShader();
|
| + if (NULL == shader) {
|
| + return skPaint2GrPaintNoShader(dev, skPaint, false, constantColor, grPaint);
|
| + }
|
| +
|
| + // SkShader::asNewEffect() may do offscreen rendering. Setup default drawing state
|
| + // Also require shader to set the render target .
|
| + GrContext::AutoWideOpenIdentityDraw awo(dev->context(), NULL);
|
| + GrContext::AutoRenderTarget(dev->context(), NULL);
|
| +
|
| + // setup the shader as the first color effect on the paint
|
| + SkAutoTUnref<GrEffectRef> effect(shader->asNewEffect(dev->context(), skPaint));
|
| + if (NULL != effect.get()) {
|
| + grPaint->addColorEffect(effect);
|
| + // Now setup the rest of the paint.
|
| + return skPaint2GrPaintNoShader(dev, skPaint, true, false, grPaint);
|
| + } else {
|
| + // We still don't have SkColorShader::asNewEffect() implemented.
|
| + SkShader::GradientInfo info;
|
| + SkColor color;
|
| +
|
| + info.fColors = &color;
|
| + info.fColorOffsets = NULL;
|
| + info.fColorCount = 1;
|
| + if (SkShader::kColor_GradientType == shader->asAGradient(&info)) {
|
| + SkPaint copy(skPaint);
|
| + copy.setShader(NULL);
|
| + // modulate the paint alpha by the shader's solid color alpha
|
| + U8CPU newA = SkMulDiv255Round(SkColorGetA(color), copy.getAlpha());
|
| + copy.setColor(SkColorSetA(color, newA));
|
| + return skPaint2GrPaintNoShader(dev, copy, false, constantColor, grPaint);
|
| + } else {
|
| + return false;
|
| + }
|
| + }
|
| +}
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +void SkGpuDevice::getGlobalBounds(SkIRect* bounds) const {
|
| + if (NULL != bounds) {
|
| + const SkIPoint& origin = this->getOrigin();
|
| + bounds->setXYWH(origin.x(), origin.y(),
|
| + this->width(), this->height());
|
| + }
|
| +}
|
| +
|
| +SkBitmap::Config SkGpuDevice::config() const {
|
| + if (NULL == fRenderTarget) {
|
| + return SkBitmap::kNo_Config;
|
| + }
|
| +
|
| + bool isOpaque;
|
| + return grConfig2skConfig(fRenderTarget->config(), &isOpaque);
|
| +}
|
| +
|
| +void SkGpuDevice::clear(SkColor color) {
|
| + SkIRect rect = SkIRect::MakeWH(this->width(), this->height());
|
| + fContext->clear(&rect, SkColor2GrColor(color), true, fRenderTarget);
|
| + fNeedClear = false;
|
| +}
|
| +
|
| +void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + fContext->drawPaint(grPaint);
|
| +}
|
| +
|
| +// must be in SkCanvas::PointMode order
|
| +static const GrPrimitiveType gPointMode2PrimtiveType[] = {
|
| + kPoints_GrPrimitiveType,
|
| + kLines_GrPrimitiveType,
|
| + kLineStrip_GrPrimitiveType
|
| +};
|
| +
|
| +void SkGpuDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode,
|
| + size_t count, const SkPoint pts[], const SkPaint& paint) {
|
| + CHECK_FOR_ANNOTATION(paint);
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + SkScalar width = paint.getStrokeWidth();
|
| + if (width < 0) {
|
| + return;
|
| + }
|
| +
|
| + // we only handle hairlines and paints without path effects or mask filters,
|
| + // else we let the SkDraw call our drawPath()
|
| + if (width > 0 || paint.getPathEffect() || paint.getMaskFilter()) {
|
| + draw.drawPoints(mode, count, pts, paint, true);
|
| + return;
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + fContext->drawVertices(grPaint,
|
| + gPointMode2PrimtiveType[mode],
|
| + count,
|
| + (GrPoint*)pts,
|
| + NULL,
|
| + NULL,
|
| + NULL,
|
| + 0);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect,
|
| + const SkPaint& paint) {
|
| + CHECK_FOR_ANNOTATION(paint);
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + bool doStroke = paint.getStyle() != SkPaint::kFill_Style;
|
| + SkScalar width = paint.getStrokeWidth();
|
| +
|
| + /*
|
| + We have special code for hairline strokes, miter-strokes, and fills.
|
| + Anything else we just call our path code.
|
| + */
|
| + bool usePath = doStroke && width > 0 &&
|
| + paint.getStrokeJoin() != SkPaint::kMiter_Join;
|
| + // another two reasons we might need to call drawPath...
|
| + if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| + usePath = true;
|
| + }
|
| + if (!usePath && paint.isAntiAlias() && !fContext->getMatrix().rectStaysRect()) {
|
| +#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
|
| + if (doStroke) {
|
| +#endif
|
| + usePath = true;
|
| +#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
|
| + } else {
|
| + usePath = !fContext->getMatrix().preservesRightAngles();
|
| + }
|
| +#endif
|
| + }
|
| + // small miter limit means right angles show bevel...
|
| + if (SkPaint::kMiter_Join == paint.getStrokeJoin() &&
|
| + paint.getStrokeMiter() < SK_ScalarSqrt2)
|
| + {
|
| + usePath = true;
|
| + }
|
| + // until we can both stroke and fill rectangles
|
| + if (paint.getStyle() == SkPaint::kStrokeAndFill_Style) {
|
| + usePath = true;
|
| + }
|
| +
|
| + if (usePath) {
|
| + SkPath path;
|
| + path.addRect(rect);
|
| + this->drawPath(draw, path, paint, NULL, true);
|
| + return;
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| + fContext->drawRect(grPaint, rect, doStroke ? width : -1);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +void SkGpuDevice::drawRRect(const SkDraw& draw, const SkRRect& rect,
|
| + const SkPaint& paint) {
|
| + CHECK_FOR_ANNOTATION(paint);
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + bool usePath = !rect.isSimple();
|
| + // another two reasons we might need to call drawPath...
|
| + if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| + usePath = true;
|
| + }
|
| + // until we can rotate rrects...
|
| + if (!usePath && !fContext->getMatrix().rectStaysRect()) {
|
| + usePath = true;
|
| + }
|
| +
|
| + if (usePath) {
|
| + SkPath path;
|
| + path.addRRect(rect);
|
| + this->drawPath(draw, path, paint, NULL, true);
|
| + return;
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + SkStrokeRec stroke(paint);
|
| + fContext->drawRRect(grPaint, rect, stroke);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +void SkGpuDevice::drawOval(const SkDraw& draw, const SkRect& oval,
|
| + const SkPaint& paint) {
|
| + CHECK_FOR_ANNOTATION(paint);
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + bool usePath = false;
|
| + // some basic reasons we might need to call drawPath...
|
| + if (paint.getMaskFilter() || paint.getPathEffect()) {
|
| + usePath = true;
|
| + }
|
| +
|
| + if (usePath) {
|
| + SkPath path;
|
| + path.addOval(oval);
|
| + this->drawPath(draw, path, paint, NULL, true);
|
| + return;
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| + SkStrokeRec stroke(paint);
|
| +
|
| + fContext->drawOval(grPaint, oval, stroke);
|
| +}
|
| +
|
| +#include "SkMaskFilter.h"
|
| +#include "SkBounder.h"
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +// helpers for applying mask filters
|
| +namespace {
|
| +
|
| +// Draw a mask using the supplied paint. Since the coverage/geometry
|
| +// is already burnt into the mask this boils down to a rect draw.
|
| +// Return true if the mask was successfully drawn.
|
| +bool draw_mask(GrContext* context, const SkRect& maskRect,
|
| + GrPaint* grp, GrTexture* mask) {
|
| + GrContext::AutoMatrix am;
|
| + if (!am.setIdentity(context, grp)) {
|
| + return false;
|
| + }
|
| +
|
| + SkMatrix matrix;
|
| + matrix.setTranslate(-maskRect.fLeft, -maskRect.fTop);
|
| + matrix.postIDiv(mask->width(), mask->height());
|
| +
|
| + grp->addCoverageEffect(GrSimpleTextureEffect::Create(mask, matrix))->unref();
|
| + context->drawRect(*grp, maskRect);
|
| + return true;
|
| +}
|
| +
|
| +bool draw_with_mask_filter(GrContext* context, const SkPath& devPath,
|
| + SkMaskFilter* filter, const SkRegion& clip, SkBounder* bounder,
|
| + GrPaint* grp, SkPaint::Style style) {
|
| + SkMask srcM, dstM;
|
| +
|
| + if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), filter, &context->getMatrix(), &srcM,
|
| + SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) {
|
| + return false;
|
| + }
|
| + SkAutoMaskFreeImage autoSrc(srcM.fImage);
|
| +
|
| + if (!filter->filterMask(&dstM, srcM, context->getMatrix(), NULL)) {
|
| + return false;
|
| + }
|
| + // this will free-up dstM when we're done (allocated in filterMask())
|
| + SkAutoMaskFreeImage autoDst(dstM.fImage);
|
| +
|
| + if (clip.quickReject(dstM.fBounds)) {
|
| + return false;
|
| + }
|
| + if (bounder && !bounder->doIRect(dstM.fBounds)) {
|
| + return false;
|
| + }
|
| +
|
| + // we now have a device-aligned 8bit mask in dstM, ready to be drawn using
|
| + // the current clip (and identity matrix) and GrPaint settings
|
| + GrTextureDesc desc;
|
| + desc.fWidth = dstM.fBounds.width();
|
| + desc.fHeight = dstM.fBounds.height();
|
| + desc.fConfig = kAlpha_8_GrPixelConfig;
|
| +
|
| + GrAutoScratchTexture ast(context, desc);
|
| + GrTexture* texture = ast.texture();
|
| +
|
| + if (NULL == texture) {
|
| + return false;
|
| + }
|
| + texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
|
| + dstM.fImage, dstM.fRowBytes);
|
| +
|
| + SkRect maskRect = SkRect::Make(dstM.fBounds);
|
| +
|
| + return draw_mask(context, maskRect, grp, texture);
|
| +}
|
| +
|
| +// Create a mask of 'devPath' and place the result in 'mask'. Return true on
|
| +// success; false otherwise.
|
| +bool create_mask_GPU(GrContext* context,
|
| + const SkRect& maskRect,
|
| + const SkPath& devPath,
|
| + const SkStrokeRec& stroke,
|
| + bool doAA,
|
| + GrAutoScratchTexture* mask) {
|
| + GrTextureDesc desc;
|
| + desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| + desc.fWidth = SkScalarCeilToInt(maskRect.width());
|
| + desc.fHeight = SkScalarCeilToInt(maskRect.height());
|
| + // We actually only need A8, but it often isn't supported as a
|
| + // render target so default to RGBA_8888
|
| + desc.fConfig = kRGBA_8888_GrPixelConfig;
|
| + if (context->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) {
|
| + desc.fConfig = kAlpha_8_GrPixelConfig;
|
| + }
|
| +
|
| + mask->set(context, desc);
|
| + if (NULL == mask->texture()) {
|
| + return false;
|
| + }
|
| +
|
| + GrTexture* maskTexture = mask->texture();
|
| + SkRect clipRect = SkRect::MakeWH(maskRect.width(), maskRect.height());
|
| +
|
| + GrContext::AutoRenderTarget art(context, maskTexture->asRenderTarget());
|
| + GrContext::AutoClip ac(context, clipRect);
|
| +
|
| + context->clear(NULL, 0x0, true);
|
| +
|
| + GrPaint tempPaint;
|
| + if (doAA) {
|
| + tempPaint.setAntiAlias(true);
|
| + // AA uses the "coverage" stages on GrDrawTarget. Coverage with a dst
|
| + // blend coeff of zero requires dual source blending support in order
|
| + // to properly blend partially covered pixels. This means the AA
|
| + // code path may not be taken. So we use a dst blend coeff of ISA. We
|
| + // could special case AA draws to a dst surface with known alpha=0 to
|
| + // use a zero dst coeff when dual source blending isn't available.
|
| + tempPaint.setBlendFunc(kOne_GrBlendCoeff, kISC_GrBlendCoeff);
|
| + }
|
| +
|
| + GrContext::AutoMatrix am;
|
| +
|
| + // Draw the mask into maskTexture with the path's top-left at the origin using tempPaint.
|
| + SkMatrix translate;
|
| + translate.setTranslate(-maskRect.fLeft, -maskRect.fTop);
|
| + am.set(context, translate);
|
| + context->drawPath(tempPaint, devPath, stroke);
|
| + return true;
|
| +}
|
| +
|
| +SkBitmap wrap_texture(GrTexture* texture) {
|
| + SkBitmap result;
|
| + bool dummy;
|
| + SkBitmap::Config config = grConfig2skConfig(texture->config(), &dummy);
|
| + result.setConfig(config, texture->width(), texture->height());
|
| + result.setPixelRef(SkNEW_ARGS(SkGrPixelRef, (texture)))->unref();
|
| + return result;
|
| +}
|
| +
|
| +};
|
| +
|
| +void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
|
| + const SkPaint& paint, const SkMatrix* prePathMatrix,
|
| + bool pathIsMutable) {
|
| + CHECK_FOR_ANNOTATION(paint);
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + // can we cheat, and treat a thin stroke as a hairline w/ coverage
|
| + // if we can, we draw lots faster (raster device does this same test)
|
| + SkScalar hairlineCoverage;
|
| + bool doHairLine = SkDrawTreatAsHairline(paint, fContext->getMatrix(), &hairlineCoverage);
|
| + if (doHairLine) {
|
| + grPaint.setCoverage(SkScalarRoundToInt(hairlineCoverage * grPaint.getCoverage()));
|
| + }
|
| +
|
| + // If we have a prematrix, apply it to the path, optimizing for the case
|
| + // where the original path can in fact be modified in place (even though
|
| + // its parameter type is const).
|
| + SkPath* pathPtr = const_cast<SkPath*>(&origSrcPath);
|
| + SkPath tmpPath, effectPath;
|
| +
|
| + if (prePathMatrix) {
|
| + SkPath* result = pathPtr;
|
| +
|
| + if (!pathIsMutable) {
|
| + result = &tmpPath;
|
| + pathIsMutable = true;
|
| + }
|
| + // should I push prePathMatrix on our MV stack temporarily, instead
|
| + // of applying it here? See SkDraw.cpp
|
| + pathPtr->transform(*prePathMatrix, result);
|
| + pathPtr = result;
|
| + }
|
| + // at this point we're done with prePathMatrix
|
| + SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;)
|
| +
|
| + SkStrokeRec stroke(paint);
|
| + SkPathEffect* pathEffect = paint.getPathEffect();
|
| + const SkRect* cullRect = NULL; // TODO: what is our bounds?
|
| + if (pathEffect && pathEffect->filterPath(&effectPath, *pathPtr, &stroke,
|
| + cullRect)) {
|
| + pathPtr = &effectPath;
|
| + }
|
| +
|
| + if (!pathEffect && doHairLine) {
|
| + stroke.setHairlineStyle();
|
| + }
|
| +
|
| + if (paint.getMaskFilter()) {
|
| + if (!stroke.isHairlineStyle()) {
|
| + if (stroke.applyToPath(&tmpPath, *pathPtr)) {
|
| + pathPtr = &tmpPath;
|
| + pathIsMutable = true;
|
| + stroke.setFillStyle();
|
| + }
|
| + }
|
| +
|
| + // avoid possibly allocating a new path in transform if we can
|
| + SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath;
|
| +
|
| + // transform the path into device space
|
| + pathPtr->transform(fContext->getMatrix(), devPathPtr);
|
| +
|
| + SkRect maskRect;
|
| + if (paint.getMaskFilter()->canFilterMaskGPU(devPathPtr->getBounds(),
|
| + draw.fClip->getBounds(),
|
| + fContext->getMatrix(),
|
| + &maskRect)) {
|
| + SkIRect finalIRect;
|
| + maskRect.roundOut(&finalIRect);
|
| + if (draw.fClip->quickReject(finalIRect)) {
|
| + // clipped out
|
| + return;
|
| + }
|
| + if (NULL != draw.fBounder && !draw.fBounder->doIRect(finalIRect)) {
|
| + // nothing to draw
|
| + return;
|
| + }
|
| +
|
| + GrAutoScratchTexture mask;
|
| +
|
| + if (create_mask_GPU(fContext, maskRect, *devPathPtr, stroke,
|
| + grPaint.isAntiAlias(), &mask)) {
|
| + GrTexture* filtered;
|
| +
|
| + if (paint.getMaskFilter()->filterMaskGPU(mask.texture(), maskRect, &filtered, true)) {
|
| + // filterMaskGPU gives us ownership of a ref to the result
|
| + SkAutoTUnref<GrTexture> atu(filtered);
|
| +
|
| + // If the scratch texture that we used as the filter src also holds the filter
|
| + // result then we must detach so that this texture isn't recycled for a later
|
| + // draw.
|
| + if (filtered == mask.texture()) {
|
| + mask.detach();
|
| + filtered->unref(); // detach transfers GrAutoScratchTexture's ref to us.
|
| + }
|
| +
|
| + if (draw_mask(fContext, maskRect, &grPaint, filtered)) {
|
| + // This path is completely drawn
|
| + return;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + // draw the mask on the CPU - this is a fallthrough path in case the
|
| + // GPU path fails
|
| + SkPaint::Style style = stroke.isHairlineStyle() ? SkPaint::kStroke_Style :
|
| + SkPaint::kFill_Style;
|
| + draw_with_mask_filter(fContext, *devPathPtr, paint.getMaskFilter(),
|
| + *draw.fClip, draw.fBounder, &grPaint, style);
|
| + return;
|
| + }
|
| +
|
| + fContext->drawPath(grPaint, *pathPtr, stroke);
|
| +}
|
| +
|
| +static const int kBmpSmallTileSize = 1 << 10;
|
| +
|
| +static inline int get_tile_count(const SkIRect& srcRect, int tileSize) {
|
| + int tilesX = (srcRect.fRight / tileSize) - (srcRect.fLeft / tileSize) + 1;
|
| + int tilesY = (srcRect.fBottom / tileSize) - (srcRect.fTop / tileSize) + 1;
|
| + return tilesX * tilesY;
|
| +}
|
| +
|
| +static int determine_tile_size(const SkBitmap& bitmap, const SkIRect& src, int maxTileSize) {
|
| + if (maxTileSize <= kBmpSmallTileSize) {
|
| + return maxTileSize;
|
| + }
|
| +
|
| + size_t maxTileTotalTileSize = get_tile_count(src, maxTileSize);
|
| + size_t smallTotalTileSize = get_tile_count(src, kBmpSmallTileSize);
|
| +
|
| + maxTileTotalTileSize *= maxTileSize * maxTileSize;
|
| + smallTotalTileSize *= kBmpSmallTileSize * kBmpSmallTileSize;
|
| +
|
| + if (maxTileTotalTileSize > 2 * smallTotalTileSize) {
|
| + return kBmpSmallTileSize;
|
| + } else {
|
| + return maxTileSize;
|
| + }
|
| +}
|
| +
|
| +// Given a bitmap, an optional src rect, and a context with a clip and matrix determine what
|
| +// pixels from the bitmap are necessary.
|
| +static void determine_clipped_src_rect(const GrContext* context,
|
| + const SkBitmap& bitmap,
|
| + const SkRect* srcRectPtr,
|
| + SkIRect* clippedSrcIRect) {
|
| + const GrClipData* clip = context->getClip();
|
| + clip->getConservativeBounds(context->getRenderTarget(), clippedSrcIRect, NULL);
|
| + SkMatrix inv;
|
| + if (!context->getMatrix().invert(&inv)) {
|
| + clippedSrcIRect->setEmpty();
|
| + return;
|
| + }
|
| + SkRect clippedSrcRect = SkRect::Make(*clippedSrcIRect);
|
| + inv.mapRect(&clippedSrcRect);
|
| + if (NULL != srcRectPtr) {
|
| + if (!clippedSrcRect.intersect(*srcRectPtr)) {
|
| + clippedSrcIRect->setEmpty();
|
| + return;
|
| + }
|
| + }
|
| + clippedSrcRect.roundOut(clippedSrcIRect);
|
| + SkIRect bmpBounds = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| + if (!clippedSrcIRect->intersect(bmpBounds)) {
|
| + clippedSrcIRect->setEmpty();
|
| + }
|
| +}
|
| +
|
| +bool SkGpuDevice::shouldTileBitmap(const SkBitmap& bitmap,
|
| + const GrTextureParams& params,
|
| + const SkRect* srcRectPtr,
|
| + int maxTileSize,
|
| + int* tileSize,
|
| + SkIRect* clippedSrcRect) const {
|
| + // if bitmap is explictly texture backed then just use the texture
|
| + if (NULL != bitmap.getTexture()) {
|
| + return false;
|
| + }
|
| +
|
| + // if it's larger than the max tile size, then we have no choice but tiling.
|
| + if (bitmap.width() > maxTileSize || bitmap.height() > maxTileSize) {
|
| + determine_clipped_src_rect(fContext, bitmap, srcRectPtr, clippedSrcRect);
|
| + *tileSize = determine_tile_size(bitmap, *clippedSrcRect, maxTileSize);
|
| + return true;
|
| + }
|
| +
|
| + if (bitmap.width() * bitmap.height() < 4 * kBmpSmallTileSize * kBmpSmallTileSize) {
|
| + return false;
|
| + }
|
| +
|
| + // if the entire texture is already in our cache then no reason to tile it
|
| + if (GrIsBitmapInCache(fContext, bitmap, ¶ms)) {
|
| + return false;
|
| + }
|
| +
|
| + // At this point we know we could do the draw by uploading the entire bitmap
|
| + // as a texture. However, if the texture would be large compared to the
|
| + // cache size and we don't require most of it for this draw then tile to
|
| + // reduce the amount of upload and cache spill.
|
| +
|
| + // assumption here is that sw bitmap size is a good proxy for its size as
|
| + // a texture
|
| + size_t bmpSize = bitmap.getSize();
|
| + size_t cacheSize;
|
| + fContext->getTextureCacheLimits(NULL, &cacheSize);
|
| + if (bmpSize < cacheSize / 2) {
|
| + return false;
|
| + }
|
| +
|
| + // Figure out how much of the src we will need based on the src rect and clipping.
|
| + determine_clipped_src_rect(fContext, bitmap, srcRectPtr, clippedSrcRect);
|
| + *tileSize = kBmpSmallTileSize; // already know whole bitmap fits in one max sized tile.
|
| + size_t usedTileBytes = get_tile_count(*clippedSrcRect, kBmpSmallTileSize) *
|
| + kBmpSmallTileSize * kBmpSmallTileSize;
|
| +
|
| + return usedTileBytes < 2 * bmpSize;
|
| +}
|
| +
|
| +void SkGpuDevice::drawBitmap(const SkDraw& draw,
|
| + const SkBitmap& bitmap,
|
| + const SkMatrix& m,
|
| + const SkPaint& paint) {
|
| + // We cannot call drawBitmapRect here since 'm' could be anything
|
| + this->drawBitmapCommon(draw, bitmap, NULL, m, paint,
|
| + SkCanvas::kNone_DrawBitmapRectFlag);
|
| +}
|
| +
|
| +// This method outsets 'iRect' by 1 all around and then clamps its extents to
|
| +// 'clamp'. 'offset' is adjusted to remain positioned over the top-left corner
|
| +// of 'iRect' for all possible outsets/clamps.
|
| +static inline void clamped_unit_outset_with_offset(SkIRect* iRect, SkPoint* offset,
|
| + const SkIRect& clamp) {
|
| + iRect->outset(1, 1);
|
| +
|
| + if (iRect->fLeft < clamp.fLeft) {
|
| + iRect->fLeft = clamp.fLeft;
|
| + } else {
|
| + offset->fX -= SK_Scalar1;
|
| + }
|
| + if (iRect->fTop < clamp.fTop) {
|
| + iRect->fTop = clamp.fTop;
|
| + } else {
|
| + offset->fY -= SK_Scalar1;
|
| + }
|
| +
|
| + if (iRect->fRight > clamp.fRight) {
|
| + iRect->fRight = clamp.fRight;
|
| + }
|
| + if (iRect->fBottom > clamp.fBottom) {
|
| + iRect->fBottom = clamp.fBottom;
|
| + }
|
| +}
|
| +
|
| +void SkGpuDevice::drawBitmapCommon(const SkDraw& draw,
|
| + const SkBitmap& bitmap,
|
| + const SkRect* srcRectPtr,
|
| + const SkMatrix& m,
|
| + const SkPaint& paint,
|
| + SkCanvas::DrawBitmapRectFlags flags) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + SkRect srcRect;
|
| + if (NULL == srcRectPtr) {
|
| + srcRect.set(0, 0, SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height()));
|
| + } else {
|
| + srcRect = *srcRectPtr;
|
| + }
|
| +
|
| + if (paint.getMaskFilter()){
|
| + // Convert the bitmap to a shader so that the rect can be drawn
|
| + // through drawRect, which supports mask filters.
|
| + SkMatrix newM(m);
|
| + SkBitmap tmp; // subset of bitmap, if necessary
|
| + const SkBitmap* bitmapPtr = &bitmap;
|
| + if (NULL != srcRectPtr) {
|
| + SkIRect iSrc;
|
| + srcRect.roundOut(&iSrc);
|
| +
|
| + SkPoint offset = SkPoint::Make(SkIntToScalar(iSrc.fLeft),
|
| + SkIntToScalar(iSrc.fTop));
|
| +
|
| + if (SkCanvas::kBleed_DrawBitmapRectFlag & flags) {
|
| + // In bleed mode we want to expand the src rect on all sides
|
| + // but stay within the bitmap bounds
|
| + SkIRect iClampRect = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| + clamped_unit_outset_with_offset(&iSrc, &offset, iClampRect);
|
| + }
|
| +
|
| + if (!bitmap.extractSubset(&tmp, iSrc)) {
|
| + return; // extraction failed
|
| + }
|
| + bitmapPtr = &tmp;
|
| + srcRect.offset(-offset.fX, -offset.fY);
|
| + // The source rect has changed so update the matrix
|
| + newM.preTranslate(offset.fX, offset.fY);
|
| + }
|
| +
|
| + SkPaint paintWithTexture(paint);
|
| + paintWithTexture.setShader(SkShader::CreateBitmapShader(*bitmapPtr,
|
| + SkShader::kClamp_TileMode, SkShader::kClamp_TileMode))->unref();
|
| +
|
| + // Transform 'newM' needs to be concatenated to the current matrix,
|
| + // rather than transforming the primitive directly, so that 'newM' will
|
| + // also affect the behavior of the mask filter.
|
| + SkMatrix drawMatrix;
|
| + drawMatrix.setConcat(fContext->getMatrix(), newM);
|
| + SkDraw transformedDraw(draw);
|
| + transformedDraw.fMatrix = &drawMatrix;
|
| +
|
| + this->drawRect(transformedDraw, srcRect, paintWithTexture);
|
| +
|
| + return;
|
| + }
|
| +
|
| + fContext->concatMatrix(m);
|
| +
|
| + GrTextureParams params;
|
| + SkPaint::FilterLevel paintFilterLevel = paint.getFilterLevel();
|
| + GrTextureParams::FilterMode textureFilterMode;
|
| + switch(paintFilterLevel) {
|
| + case SkPaint::kNone_FilterLevel:
|
| + textureFilterMode = GrTextureParams::kNone_FilterMode;
|
| + break;
|
| + case SkPaint::kLow_FilterLevel:
|
| + textureFilterMode = GrTextureParams::kBilerp_FilterMode;
|
| + break;
|
| + case SkPaint::kMedium_FilterLevel:
|
| + textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| + break;
|
| + case SkPaint::kHigh_FilterLevel:
|
| + // Fall back to mips for now
|
| + textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| + break;
|
| + default:
|
| + SkErrorInternals::SetError( kInvalidPaint_SkError,
|
| + "Sorry, I don't understand the filtering "
|
| + "mode you asked for. Falling back to "
|
| + "MIPMaps.");
|
| + textureFilterMode = GrTextureParams::kMipMap_FilterMode;
|
| + break;
|
| +
|
| + }
|
| +
|
| + params.setFilterMode(textureFilterMode);
|
| +
|
| + int maxTileSize = fContext->getMaxTextureSize();
|
| + if (SkPaint::kNone_FilterLevel != paint.getFilterLevel()) {
|
| + // We may need a skosh more room if we have to bump out the tile
|
| + // by 1 pixel all around
|
| + maxTileSize -= 2;
|
| + }
|
| + int tileSize;
|
| +
|
| + SkIRect clippedSrcRect;
|
| + if (this->shouldTileBitmap(bitmap, params, srcRectPtr, maxTileSize, &tileSize,
|
| + &clippedSrcRect)) {
|
| + this->drawTiledBitmap(bitmap, srcRect, clippedSrcRect, params, paint, flags, tileSize);
|
| + } else {
|
| + // take the simple case
|
| + this->internalDrawBitmap(bitmap, srcRect, params, paint, flags);
|
| + }
|
| +}
|
| +
|
| +// Break 'bitmap' into several tiles to draw it since it has already
|
| +// been determined to be too large to fit in VRAM
|
| +void SkGpuDevice::drawTiledBitmap(const SkBitmap& bitmap,
|
| + const SkRect& srcRect,
|
| + const SkIRect& clippedSrcIRect,
|
| + const GrTextureParams& params,
|
| + const SkPaint& paint,
|
| + SkCanvas::DrawBitmapRectFlags flags,
|
| + int tileSize) {
|
| + SkRect clippedSrcRect = SkRect::Make(clippedSrcIRect);
|
| +
|
| + int nx = bitmap.width() / tileSize;
|
| + int ny = bitmap.height() / tileSize;
|
| + for (int x = 0; x <= nx; x++) {
|
| + for (int y = 0; y <= ny; y++) {
|
| + SkRect tileR;
|
| + tileR.set(SkIntToScalar(x * tileSize),
|
| + SkIntToScalar(y * tileSize),
|
| + SkIntToScalar((x + 1) * tileSize),
|
| + SkIntToScalar((y + 1) * tileSize));
|
| +
|
| + if (!SkRect::Intersects(tileR, clippedSrcRect)) {
|
| + continue;
|
| + }
|
| +
|
| + if (!tileR.intersect(srcRect)) {
|
| + continue;
|
| + }
|
| +
|
| + SkBitmap tmpB;
|
| + SkIRect iTileR;
|
| + tileR.roundOut(&iTileR);
|
| + SkPoint offset = SkPoint::Make(SkIntToScalar(iTileR.fLeft),
|
| + SkIntToScalar(iTileR.fTop));
|
| +
|
| + if (SkPaint::kNone_FilterLevel != paint.getFilterLevel()) {
|
| + SkIRect iClampRect;
|
| +
|
| + if (SkCanvas::kBleed_DrawBitmapRectFlag & flags) {
|
| + // In bleed mode we want to always expand the tile on all edges
|
| + // but stay within the bitmap bounds
|
| + iClampRect = SkIRect::MakeWH(bitmap.width(), bitmap.height());
|
| + } else {
|
| + // In texture-domain/clamp mode we only want to expand the
|
| + // tile on edges interior to "srcRect" (i.e., we want to
|
| + // not bleed across the original clamped edges)
|
| + srcRect.roundOut(&iClampRect);
|
| + }
|
| +
|
| + clamped_unit_outset_with_offset(&iTileR, &offset, iClampRect);
|
| + }
|
| +
|
| + if (bitmap.extractSubset(&tmpB, iTileR)) {
|
| + // now offset it to make it "local" to our tmp bitmap
|
| + tileR.offset(-offset.fX, -offset.fY);
|
| + SkMatrix tmpM;
|
| + tmpM.setTranslate(offset.fX, offset.fY);
|
| + GrContext::AutoMatrix am;
|
| + am.setPreConcat(fContext, tmpM);
|
| + this->internalDrawBitmap(tmpB, tileR, params, paint, flags);
|
| + }
|
| + }
|
| + }
|
| +}
|
| +
|
| +static bool has_aligned_samples(const SkRect& srcRect,
|
| + const SkRect& transformedRect) {
|
| + // detect pixel disalignment
|
| + if (SkScalarAbs(SkScalarRoundToScalar(transformedRect.left()) -
|
| + transformedRect.left()) < COLOR_BLEED_TOLERANCE &&
|
| + SkScalarAbs(SkScalarRoundToScalar(transformedRect.top()) -
|
| + transformedRect.top()) < COLOR_BLEED_TOLERANCE &&
|
| + SkScalarAbs(transformedRect.width() - srcRect.width()) <
|
| + COLOR_BLEED_TOLERANCE &&
|
| + SkScalarAbs(transformedRect.height() - srcRect.height()) <
|
| + COLOR_BLEED_TOLERANCE) {
|
| + return true;
|
| + }
|
| + return false;
|
| +}
|
| +
|
| +static bool may_color_bleed(const SkRect& srcRect,
|
| + const SkRect& transformedRect,
|
| + const SkMatrix& m) {
|
| + // Only gets called if has_aligned_samples returned false.
|
| + // So we can assume that sampling is axis aligned but not texel aligned.
|
| + SkASSERT(!has_aligned_samples(srcRect, transformedRect));
|
| + SkRect innerSrcRect(srcRect), innerTransformedRect,
|
| + outerTransformedRect(transformedRect);
|
| + innerSrcRect.inset(SK_ScalarHalf, SK_ScalarHalf);
|
| + m.mapRect(&innerTransformedRect, innerSrcRect);
|
| +
|
| + // The gap between outerTransformedRect and innerTransformedRect
|
| + // represents the projection of the source border area, which is
|
| + // problematic for color bleeding. We must check whether any
|
| + // destination pixels sample the border area.
|
| + outerTransformedRect.inset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE);
|
| + innerTransformedRect.outset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE);
|
| + SkIRect outer, inner;
|
| + outerTransformedRect.round(&outer);
|
| + innerTransformedRect.round(&inner);
|
| + // If the inner and outer rects round to the same result, it means the
|
| + // border does not overlap any pixel centers. Yay!
|
| + return inner != outer;
|
| +}
|
| +
|
| +
|
| +/*
|
| + * This is called by drawBitmap(), which has to handle images that may be too
|
| + * large to be represented by a single texture.
|
| + *
|
| + * internalDrawBitmap assumes that the specified bitmap will fit in a texture
|
| + * and that non-texture portion of the GrPaint has already been setup.
|
| + */
|
| +void SkGpuDevice::internalDrawBitmap(const SkBitmap& bitmap,
|
| + const SkRect& srcRect,
|
| + const GrTextureParams& params,
|
| + const SkPaint& paint,
|
| + SkCanvas::DrawBitmapRectFlags flags) {
|
| + SkASSERT(bitmap.width() <= fContext->getMaxTextureSize() &&
|
| + bitmap.height() <= fContext->getMaxTextureSize());
|
| +
|
| + GrTexture* texture;
|
| + SkAutoCachedTexture act(this, bitmap, ¶ms, &texture);
|
| + if (NULL == texture) {
|
| + return;
|
| + }
|
| +
|
| + SkRect dstRect(srcRect);
|
| + SkRect paintRect;
|
| + SkScalar wInv = SkScalarInvert(SkIntToScalar(texture->width()));
|
| + SkScalar hInv = SkScalarInvert(SkIntToScalar(texture->height()));
|
| + paintRect.setLTRB(SkScalarMul(srcRect.fLeft, wInv),
|
| + SkScalarMul(srcRect.fTop, hInv),
|
| + SkScalarMul(srcRect.fRight, wInv),
|
| + SkScalarMul(srcRect.fBottom, hInv));
|
| +
|
| + bool needsTextureDomain = false;
|
| + if (!(flags & SkCanvas::kBleed_DrawBitmapRectFlag) &&
|
| + params.filterMode() != GrTextureParams::kNone_FilterMode) {
|
| + // Need texture domain if drawing a sub rect.
|
| + needsTextureDomain = srcRect.width() < bitmap.width() ||
|
| + srcRect.height() < bitmap.height();
|
| + if (needsTextureDomain && fContext->getMatrix().rectStaysRect()) {
|
| + const SkMatrix& matrix = fContext->getMatrix();
|
| + // sampling is axis-aligned
|
| + SkRect transformedRect;
|
| + matrix.mapRect(&transformedRect, srcRect);
|
| +
|
| + if (has_aligned_samples(srcRect, transformedRect)) {
|
| + // We could also turn off filtering here (but we already did a cache lookup with
|
| + // params).
|
| + needsTextureDomain = false;
|
| + } else {
|
| + needsTextureDomain = may_color_bleed(srcRect, transformedRect, matrix);
|
| + }
|
| + }
|
| + }
|
| +
|
| + SkRect textureDomain = SkRect::MakeEmpty();
|
| + SkAutoTUnref<GrEffectRef> effect;
|
| + if (needsTextureDomain) {
|
| + // Use a constrained texture domain to avoid color bleeding
|
| + SkScalar left, top, right, bottom;
|
| + if (srcRect.width() > SK_Scalar1) {
|
| + SkScalar border = SK_ScalarHalf / texture->width();
|
| + left = paintRect.left() + border;
|
| + right = paintRect.right() - border;
|
| + } else {
|
| + left = right = SkScalarHalf(paintRect.left() + paintRect.right());
|
| + }
|
| + if (srcRect.height() > SK_Scalar1) {
|
| + SkScalar border = SK_ScalarHalf / texture->height();
|
| + top = paintRect.top() + border;
|
| + bottom = paintRect.bottom() - border;
|
| + } else {
|
| + top = bottom = SkScalarHalf(paintRect.top() + paintRect.bottom());
|
| + }
|
| + textureDomain.setLTRB(left, top, right, bottom);
|
| + effect.reset(GrTextureDomainEffect::Create(texture,
|
| + SkMatrix::I(),
|
| + textureDomain,
|
| + GrTextureDomainEffect::kClamp_WrapMode,
|
| + params.filterMode()));
|
| + } else {
|
| + effect.reset(GrSimpleTextureEffect::Create(texture, SkMatrix::I(), params));
|
| + }
|
| +
|
| + // Construct a GrPaint by setting the bitmap texture as the first effect and then configuring
|
| + // the rest from the SkPaint.
|
| + GrPaint grPaint;
|
| + grPaint.addColorEffect(effect);
|
| + bool alphaOnly = !(SkBitmap::kA8_Config == bitmap.config());
|
| + if (!skPaint2GrPaintNoShader(this, paint, alphaOnly, false, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + fContext->drawRectToRect(grPaint, dstRect, paintRect, NULL);
|
| +}
|
| +
|
| +static bool filter_texture(SkBaseDevice* device, GrContext* context,
|
| + GrTexture* texture, SkImageFilter* filter,
|
| + int w, int h, const SkMatrix& ctm, SkBitmap* result,
|
| + SkIPoint* offset) {
|
| + SkASSERT(filter);
|
| + SkDeviceImageFilterProxy proxy(device);
|
| +
|
| + if (filter->canFilterImageGPU()) {
|
| + // Save the render target and set it to NULL, so we don't accidentally draw to it in the
|
| + // filter. Also set the clip wide open and the matrix to identity.
|
| + GrContext::AutoWideOpenIdentityDraw awo(context, NULL);
|
| + return filter->filterImageGPU(&proxy, wrap_texture(texture), ctm, result, offset);
|
| + } else {
|
| + return false;
|
| + }
|
| +}
|
| +
|
| +void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
|
| + int left, int top, const SkPaint& paint) {
|
| + // drawSprite is defined to be in device coords.
|
| + CHECK_SHOULD_DRAW(draw, true);
|
| +
|
| + SkAutoLockPixels alp(bitmap, !bitmap.getTexture());
|
| + if (!bitmap.getTexture() && !bitmap.readyToDraw()) {
|
| + return;
|
| + }
|
| +
|
| + int w = bitmap.width();
|
| + int h = bitmap.height();
|
| +
|
| + GrTexture* texture;
|
| + // draw sprite uses the default texture params
|
| + SkAutoCachedTexture act(this, bitmap, NULL, &texture);
|
| +
|
| + SkImageFilter* filter = paint.getImageFilter();
|
| + SkIPoint offset = SkIPoint::Make(left, top);
|
| + // This bitmap will own the filtered result as a texture.
|
| + SkBitmap filteredBitmap;
|
| +
|
| + if (NULL != filter) {
|
| + SkMatrix matrix(*draw.fMatrix);
|
| + matrix.postTranslate(SkIntToScalar(-left), SkIntToScalar(-top));
|
| + if (filter_texture(this, fContext, texture, filter, w, h, matrix, &filteredBitmap,
|
| + &offset)) {
|
| + texture = (GrTexture*) filteredBitmap.getTexture();
|
| + w = filteredBitmap.width();
|
| + h = filteredBitmap.height();
|
| + } else {
|
| + return;
|
| + }
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + grPaint.addColorTextureEffect(texture, SkMatrix::I());
|
| +
|
| + if(!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + fContext->drawRectToRect(grPaint,
|
| + SkRect::MakeXYWH(SkIntToScalar(offset.fX),
|
| + SkIntToScalar(offset.fY),
|
| + SkIntToScalar(w),
|
| + SkIntToScalar(h)),
|
| + SkRect::MakeXYWH(0,
|
| + 0,
|
| + SK_Scalar1 * w / texture->width(),
|
| + SK_Scalar1 * h / texture->height()));
|
| +}
|
| +
|
| +void SkGpuDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap,
|
| + const SkRect* src, const SkRect& dst,
|
| + const SkPaint& paint,
|
| + SkCanvas::DrawBitmapRectFlags flags) {
|
| + SkMatrix matrix;
|
| + SkRect bitmapBounds, tmpSrc;
|
| +
|
| + bitmapBounds.set(0, 0,
|
| + SkIntToScalar(bitmap.width()),
|
| + SkIntToScalar(bitmap.height()));
|
| +
|
| + // Compute matrix from the two rectangles
|
| + if (NULL != src) {
|
| + tmpSrc = *src;
|
| + } else {
|
| + tmpSrc = bitmapBounds;
|
| + }
|
| + matrix.setRectToRect(tmpSrc, dst, SkMatrix::kFill_ScaleToFit);
|
| +
|
| + // clip the tmpSrc to the bounds of the bitmap. No check needed if src==null.
|
| + if (NULL != src) {
|
| + if (!bitmapBounds.contains(tmpSrc)) {
|
| + if (!tmpSrc.intersect(bitmapBounds)) {
|
| + return; // nothing to draw
|
| + }
|
| + }
|
| + }
|
| +
|
| + this->drawBitmapCommon(draw, bitmap, &tmpSrc, matrix, paint, flags);
|
| +}
|
| +
|
| +void SkGpuDevice::drawDevice(const SkDraw& draw, SkBaseDevice* device,
|
| + int x, int y, const SkPaint& paint) {
|
| + // clear of the source device must occur before CHECK_SHOULD_DRAW
|
| + SkGpuDevice* dev = static_cast<SkGpuDevice*>(device);
|
| + if (dev->fNeedClear) {
|
| + // TODO: could check here whether we really need to draw at all
|
| + dev->clear(0x0);
|
| + }
|
| +
|
| + // drawDevice is defined to be in device coords.
|
| + CHECK_SHOULD_DRAW(draw, true);
|
| +
|
| + GrRenderTarget* devRT = dev->accessRenderTarget();
|
| + GrTexture* devTex;
|
| + if (NULL == (devTex = devRT->asTexture())) {
|
| + return;
|
| + }
|
| +
|
| + const SkBitmap& bm = dev->accessBitmap(false);
|
| + int w = bm.width();
|
| + int h = bm.height();
|
| +
|
| + SkImageFilter* filter = paint.getImageFilter();
|
| + // This bitmap will own the filtered result as a texture.
|
| + SkBitmap filteredBitmap;
|
| +
|
| + if (NULL != filter) {
|
| + SkIPoint offset = SkIPoint::Make(0, 0);
|
| + SkMatrix matrix(*draw.fMatrix);
|
| + matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
|
| + if (filter_texture(this, fContext, devTex, filter, w, h, matrix, &filteredBitmap,
|
| + &offset)) {
|
| + devTex = filteredBitmap.getTexture();
|
| + w = filteredBitmap.width();
|
| + h = filteredBitmap.height();
|
| + x += offset.fX;
|
| + y += offset.fY;
|
| + } else {
|
| + return;
|
| + }
|
| + }
|
| +
|
| + GrPaint grPaint;
|
| + grPaint.addColorTextureEffect(devTex, SkMatrix::I());
|
| +
|
| + if (!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
|
| + return;
|
| + }
|
| +
|
| + SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(x),
|
| + SkIntToScalar(y),
|
| + SkIntToScalar(w),
|
| + SkIntToScalar(h));
|
| +
|
| + // The device being drawn may not fill up its texture (e.g. saveLayer uses approximate
|
| + // scratch texture).
|
| + SkRect srcRect = SkRect::MakeWH(SK_Scalar1 * w / devTex->width(),
|
| + SK_Scalar1 * h / devTex->height());
|
| +
|
| + fContext->drawRectToRect(grPaint, dstRect, srcRect);
|
| +}
|
| +
|
| +bool SkGpuDevice::canHandleImageFilter(SkImageFilter* filter) {
|
| + return filter->canFilterImageGPU();
|
| +}
|
| +
|
| +bool SkGpuDevice::filterImage(SkImageFilter* filter, const SkBitmap& src,
|
| + const SkMatrix& ctm,
|
| + SkBitmap* result, SkIPoint* offset) {
|
| + // want explicitly our impl, so guard against a subclass of us overriding it
|
| + if (!this->SkGpuDevice::canHandleImageFilter(filter)) {
|
| + return false;
|
| + }
|
| +
|
| + SkAutoLockPixels alp(src, !src.getTexture());
|
| + if (!src.getTexture() && !src.readyToDraw()) {
|
| + return false;
|
| + }
|
| +
|
| + GrTexture* texture;
|
| + // We assume here that the filter will not attempt to tile the src. Otherwise, this cache lookup
|
| + // must be pushed upstack.
|
| + SkAutoCachedTexture act(this, src, NULL, &texture);
|
| +
|
| + return filter_texture(this, fContext, texture, filter, src.width(), src.height(), ctm, result,
|
| + offset);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +// must be in SkCanvas::VertexMode order
|
| +static const GrPrimitiveType gVertexMode2PrimitiveType[] = {
|
| + kTriangles_GrPrimitiveType,
|
| + kTriangleStrip_GrPrimitiveType,
|
| + kTriangleFan_GrPrimitiveType,
|
| +};
|
| +
|
| +void SkGpuDevice::drawVertices(const SkDraw& draw, SkCanvas::VertexMode vmode,
|
| + int vertexCount, const SkPoint vertices[],
|
| + const SkPoint texs[], const SkColor colors[],
|
| + SkXfermode* xmode,
|
| + const uint16_t indices[], int indexCount,
|
| + const SkPaint& paint) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + GrPaint grPaint;
|
| + // we ignore the shader if texs is null.
|
| + if (NULL == texs) {
|
| + if (!skPaint2GrPaintNoShader(this, paint, false, NULL == colors, &grPaint)) {
|
| + return;
|
| + }
|
| + } else {
|
| + if (!skPaint2GrPaintShader(this, paint, NULL == colors, &grPaint)) {
|
| + return;
|
| + }
|
| + }
|
| +
|
| + if (NULL != xmode && NULL != texs && NULL != colors) {
|
| + if (!SkXfermode::IsMode(xmode, SkXfermode::kModulate_Mode)) {
|
| + SkDebugf("Unsupported vertex-color/texture xfer mode.\n");
|
| +#if 0
|
| + return
|
| +#endif
|
| + }
|
| + }
|
| +
|
| + SkAutoSTMalloc<128, GrColor> convertedColors(0);
|
| + if (NULL != colors) {
|
| + // need to convert byte order and from non-PM to PM
|
| + convertedColors.reset(vertexCount);
|
| + for (int i = 0; i < vertexCount; ++i) {
|
| + convertedColors[i] = SkColor2GrColor(colors[i]);
|
| + }
|
| + colors = convertedColors.get();
|
| + }
|
| + fContext->drawVertices(grPaint,
|
| + gVertexMode2PrimitiveType[vmode],
|
| + vertexCount,
|
| + (GrPoint*) vertices,
|
| + (GrPoint*) texs,
|
| + colors,
|
| + indices,
|
| + indexCount);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +static void GlyphCacheAuxProc(void* data) {
|
| + GrFontScaler* scaler = (GrFontScaler*)data;
|
| + SkSafeUnref(scaler);
|
| +}
|
| +
|
| +static GrFontScaler* get_gr_font_scaler(SkGlyphCache* cache) {
|
| + void* auxData;
|
| + GrFontScaler* scaler = NULL;
|
| + if (cache->getAuxProcData(GlyphCacheAuxProc, &auxData)) {
|
| + scaler = (GrFontScaler*)auxData;
|
| + }
|
| + if (NULL == scaler) {
|
| + scaler = SkNEW_ARGS(SkGrFontScaler, (cache));
|
| + cache->setAuxProc(GlyphCacheAuxProc, scaler);
|
| + }
|
| + return scaler;
|
| +}
|
| +
|
| +static void SkGPU_Draw1Glyph(const SkDraw1Glyph& state,
|
| + SkFixed fx, SkFixed fy,
|
| + const SkGlyph& glyph) {
|
| + SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0);
|
| +
|
| + GrSkDrawProcs* procs = static_cast<GrSkDrawProcs*>(state.fDraw->fProcs);
|
| +
|
| + if (NULL == procs->fFontScaler) {
|
| + procs->fFontScaler = get_gr_font_scaler(state.fCache);
|
| + }
|
| +
|
| + procs->fTextContext->drawPackedGlyph(GrGlyph::Pack(glyph.getGlyphID(),
|
| + glyph.getSubXFixed(),
|
| + glyph.getSubYFixed()),
|
| + SkFixedFloorToFixed(fx),
|
| + SkFixedFloorToFixed(fy),
|
| + procs->fFontScaler);
|
| +}
|
| +
|
| +SkDrawProcs* SkGpuDevice::initDrawForText(GrTextContext* context) {
|
| +
|
| + // deferred allocation
|
| + if (NULL == fDrawProcs) {
|
| + fDrawProcs = SkNEW(GrSkDrawProcs);
|
| + fDrawProcs->fD1GProc = SkGPU_Draw1Glyph;
|
| + fDrawProcs->fContext = fContext;
|
| +#if SK_DISTANCEFIELD_FONTS
|
| + fDrawProcs->fFlags = 0;
|
| + fDrawProcs->fFlags |= SkDrawProcs::kSkipBakedGlyphTransform_Flag;
|
| + fDrawProcs->fFlags |= SkDrawProcs::kUseScaledGlyphs_Flag;
|
| +#endif
|
| + }
|
| +
|
| + // init our (and GL's) state
|
| + fDrawProcs->fTextContext = context;
|
| + fDrawProcs->fFontScaler = NULL;
|
| + return fDrawProcs;
|
| +}
|
| +
|
| +void SkGpuDevice::drawText(const SkDraw& draw, const void* text,
|
| + size_t byteLength, SkScalar x, SkScalar y,
|
| + const SkPaint& paint) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + if (fContext->getMatrix().hasPerspective()) {
|
| + // this guy will just call our drawPath()
|
| + draw.drawText((const char*)text, byteLength, x, y, paint);
|
| + } else {
|
| + SkDraw myDraw(draw);
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +#if SK_DISTANCEFIELD_FONTS
|
| + GrDistanceFieldTextContext context(fContext, grPaint, paint.getColor(),
|
| + paint.getTextSize()/SkDrawProcs::kBaseDFFontSize);
|
| +#else
|
| + GrBitmapTextContext context(fContext, grPaint, paint.getColor());
|
| +#endif
|
| + myDraw.fProcs = this->initDrawForText(&context);
|
| + this->INHERITED::drawText(myDraw, text, byteLength, x, y, paint);
|
| + }
|
| +}
|
| +
|
| +void SkGpuDevice::drawPosText(const SkDraw& draw, const void* text,
|
| + size_t byteLength, const SkScalar pos[],
|
| + SkScalar constY, int scalarsPerPos,
|
| + const SkPaint& paint) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + if (fContext->getMatrix().hasPerspective()) {
|
| + // this guy will just call our drawPath()
|
| + draw.drawPosText((const char*)text, byteLength, pos, constY,
|
| + scalarsPerPos, paint);
|
| + } else {
|
| + SkDraw myDraw(draw);
|
| +
|
| + GrPaint grPaint;
|
| + if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
|
| + return;
|
| + }
|
| +#if SK_DISTANCEFIELD_FONTS
|
| + GrDistanceFieldTextContext context(fContext, grPaint, paint.getColor(),
|
| + paint.getTextSize());
|
| +#else
|
| + GrBitmapTextContext context(fContext, grPaint, paint.getColor());
|
| +#endif
|
| + myDraw.fProcs = this->initDrawForText(&context);
|
| + this->INHERITED::drawPosText(myDraw, text, byteLength, pos, constY,
|
| + scalarsPerPos, paint);
|
| + }
|
| +}
|
| +
|
| +void SkGpuDevice::drawTextOnPath(const SkDraw& draw, const void* text,
|
| + size_t len, const SkPath& path,
|
| + const SkMatrix* m, const SkPaint& paint) {
|
| + CHECK_SHOULD_DRAW(draw, false);
|
| +
|
| + SkASSERT(draw.fDevice == this);
|
| + draw.drawTextOnPath((const char*)text, len, path, m, paint);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +bool SkGpuDevice::filterTextFlags(const SkPaint& paint, TextFlags* flags) {
|
| + if (!paint.isLCDRenderText()) {
|
| + // we're cool with the paint as is
|
| + return false;
|
| + }
|
| +
|
| + if (paint.getShader() ||
|
| + paint.getXfermode() || // unless its srcover
|
| + paint.getMaskFilter() ||
|
| + paint.getRasterizer() ||
|
| + paint.getColorFilter() ||
|
| + paint.getPathEffect() ||
|
| + paint.isFakeBoldText() ||
|
| + paint.getStyle() != SkPaint::kFill_Style) {
|
| + // turn off lcd
|
| + flags->fFlags = paint.getFlags() & ~SkPaint::kLCDRenderText_Flag;
|
| + flags->fHinting = paint.getHinting();
|
| + return true;
|
| + }
|
| + // we're cool with the paint as is
|
| + return false;
|
| +}
|
| +
|
| +void SkGpuDevice::flush() {
|
| + DO_DEFERRED_CLEAR();
|
| + fContext->resolveRenderTarget(fRenderTarget);
|
| +}
|
| +
|
| +///////////////////////////////////////////////////////////////////////////////
|
| +
|
| +SkBaseDevice* SkGpuDevice::onCreateCompatibleDevice(SkBitmap::Config config,
|
| + int width, int height,
|
| + bool isOpaque,
|
| + Usage usage) {
|
| + GrTextureDesc desc;
|
| + desc.fConfig = fRenderTarget->config();
|
| + desc.fFlags = kRenderTarget_GrTextureFlagBit;
|
| + desc.fWidth = width;
|
| + desc.fHeight = height;
|
| + desc.fSampleCnt = fRenderTarget->numSamples();
|
| +
|
| + SkAutoTUnref<GrTexture> texture;
|
| + // Skia's convention is to only clear a device if it is non-opaque.
|
| + bool needClear = !isOpaque;
|
| +
|
| +#if CACHE_COMPATIBLE_DEVICE_TEXTURES
|
| + // layers are never draw in repeat modes, so we can request an approx
|
| + // match and ignore any padding.
|
| + const GrContext::ScratchTexMatch match = (kSaveLayer_Usage == usage) ?
|
| + GrContext::kApprox_ScratchTexMatch :
|
| + GrContext::kExact_ScratchTexMatch;
|
| + texture.reset(fContext->lockAndRefScratchTexture(desc, match));
|
| +#else
|
| + texture.reset(fContext->createUncachedTexture(desc, NULL, 0));
|
| +#endif
|
| + if (NULL != texture.get()) {
|
| + return SkNEW_ARGS(SkGpuDevice,(fContext, texture, needClear));
|
| + } else {
|
| + GrPrintf("---- failed to create compatible device texture [%d %d]\n", width, height);
|
| + return NULL;
|
| + }
|
| +}
|
| +
|
| +SkGpuDevice::SkGpuDevice(GrContext* context,
|
| + GrTexture* texture,
|
| + bool needClear)
|
| + : SkBitmapDevice(make_bitmap(context, texture->asRenderTarget())) {
|
| +
|
| + SkASSERT(texture && texture->asRenderTarget());
|
| + // This constructor is called from onCreateCompatibleDevice. It has locked the RT in the texture
|
| + // cache. We pass true for the third argument so that it will get unlocked.
|
| + this->initFromRenderTarget(context, texture->asRenderTarget(), true);
|
| + fNeedClear = needClear;
|
| +}
|
|
|
Chromium Code Reviews
Issue 41213003:
Hook in rough distance field support for fonts (Closed)
Base URL: https://skia.googlecode.com/svn/trunk