| /* |
| Copyright 2011 Google Inc. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| |
| #include "GrContext.h" |
| #include "GrTextContext.h" |
| |
| #include "SkGpuDevice.h" |
| #include "SkGpuDeviceFactory.h" |
| #include "SkGrTexturePixelRef.h" |
| |
| #include "SkDrawProcs.h" |
| #include "SkGlyphCache.h" |
| |
| #define CACHE_LAYER_TEXTURES 1 |
| |
| #if 0 |
| extern bool (*gShouldDrawProc)(); |
| #define CHECK_SHOULD_DRAW(draw) \ |
| do { \ |
| if (gShouldDrawProc && !gShouldDrawProc()) return; \ |
| this->prepareRenderTarget(draw); \ |
| } while (0) |
| #else |
| #define CHECK_SHOULD_DRAW(draw) this->prepareRenderTarget(draw) |
| #endif |
| |
| class SkAutoExtMatrix { |
| public: |
| SkAutoExtMatrix(const SkMatrix* extMatrix) { |
| if (extMatrix) { |
| SkGr::SkMatrix2GrMatrix(*extMatrix, &fMatrix); |
| fExtMatrix = &fMatrix; |
| } else { |
| fExtMatrix = NULL; |
| } |
| } |
| const GrMatrix* extMatrix() const { return fExtMatrix; } |
| |
| private: |
| GrMatrix fMatrix; |
| GrMatrix* fExtMatrix; // NULL or &fMatrix |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkGpuDevice::SkAutoCachedTexture:: |
| SkAutoCachedTexture(SkGpuDevice* device, |
| const SkBitmap& bitmap, |
| const GrSamplerState& sampler, |
| GrTexture** texture) { |
| GrAssert(texture); |
| fTex = NULL; |
| *texture = this->set(device, bitmap, sampler); |
| } |
| |
| SkGpuDevice::SkAutoCachedTexture::SkAutoCachedTexture() { |
| fTex = NULL; |
| } |
| |
| GrTexture* SkGpuDevice::SkAutoCachedTexture::set(SkGpuDevice* device, |
| const SkBitmap& bitmap, |
| const GrSamplerState& sampler) { |
| if (fTex) { |
| fDevice->unlockCachedTexture(fTex); |
| } |
| fDevice = device; |
| GrTexture* texture = (GrTexture*)bitmap.getTexture(); |
| if (texture) { |
| // return the native texture |
| fTex = NULL; |
| } else { |
| // look it up in our cache |
| fTex = device->lockCachedTexture(bitmap, sampler, &texture, false); |
| } |
| return texture; |
| } |
| |
| SkGpuDevice::SkAutoCachedTexture::~SkAutoCachedTexture() { |
| if (fTex) { |
| fDevice->unlockCachedTexture(fTex); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| bool gDoTraceDraw; |
| |
| struct GrSkDrawProcs : public SkDrawProcs { |
| public: |
| GrContext* fContext; |
| GrTextContext* fTextContext; |
| GrFontScaler* fFontScaler; // cached in the skia glyphcache |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GrRenderTarget* SkGpuDevice::Current3DApiRenderTarget() { |
| return (GrRenderTarget*) -1; |
| } |
| |
| SkGpuDevice::SkGpuDevice(GrContext* context, |
| const SkBitmap& bitmap, |
| GrRenderTarget* renderTargetOrNull) |
| : SkDevice(NULL, bitmap, (NULL == renderTargetOrNull)) { |
| |
| fNeedPrepareRenderTarget = false; |
| fDrawProcs = NULL; |
| |
| fContext = context; |
| fContext->ref(); |
| |
| fCache = NULL; |
| fTexture = NULL; |
| fRenderTarget = NULL; |
| fNeedClear = false; |
| |
| if (NULL == renderTargetOrNull) { |
| SkBitmap::Config c = bitmap.config(); |
| if (c != SkBitmap::kRGB_565_Config) { |
| c = SkBitmap::kARGB_8888_Config; |
| } |
| SkBitmap bm; |
| bm.setConfig(c, this->width(), this->height()); |
| |
| #if CACHE_LAYER_TEXTURES |
| |
| fCache = this->lockCachedTexture(bm, GrSamplerState::ClampNoFilter(), |
| &fTexture, true); |
| if (fCache) { |
| SkASSERT(NULL != fTexture); |
| SkASSERT(NULL != fTexture->asRenderTarget()); |
| } |
| #else |
| const GrGpu::TextureDesc desc = { |
| GrGpu::kRenderTarget_TextureFlag, |
| GrGpu::kNone_AALevel, |
| this->width(), |
| this->height(), |
| SkGr::Bitmap2PixelConfig(bm) |
| }; |
| |
| fTexture = fContext->createUncachedTexture(desc, NULL, 0); |
| #endif |
| if (NULL != fTexture) { |
| fRenderTarget = fTexture->asRenderTarget(); |
| |
| GrAssert(NULL != fRenderTarget); |
| |
| // we defer the actual clear until our gainFocus() |
| fNeedClear = true; |
| |
| // wrap the bitmap with a pixelref to expose our texture |
| SkGrTexturePixelRef* pr = new SkGrTexturePixelRef(fTexture); |
| this->setPixelRef(pr, 0)->unref(); |
| } else { |
| GrPrintf("--- failed to create gpu-offscreen [%d %d]\n", |
| this->width(), this->height()); |
| GrAssert(false); |
| } |
| } else if (Current3DApiRenderTarget() == renderTargetOrNull) { |
| fRenderTarget = fContext->createRenderTargetFrom3DApiState(); |
| } else { |
| fRenderTarget = renderTargetOrNull; |
| fRenderTarget->ref(); |
| } |
| } |
| |
| SkGpuDevice::~SkGpuDevice() { |
| if (fDrawProcs) { |
| delete fDrawProcs; |
| } |
| |
| if (fCache) { |
| GrAssert(NULL != fTexture); |
| GrAssert(fRenderTarget == fTexture->asRenderTarget()); |
| // IMPORTANT: reattach the rendertarget/tex back to the cache. |
| fContext->reattachAndUnlockCachedTexture((GrTextureEntry*)fCache); |
| } else if (NULL != fTexture) { |
| GrAssert(!CACHE_LAYER_TEXTURES); |
| GrAssert(fRenderTarget == fTexture->asRenderTarget()); |
| fTexture->unref(); |
| } else if (NULL != fRenderTarget) { |
| fRenderTarget->unref(); |
| } |
| fContext->unref(); |
| } |
| |
| intptr_t SkGpuDevice::getLayerTextureHandle() const { |
| if (fTexture) { |
| return fTexture->getTextureHandle(); |
| } else { |
| return 0; |
| } |
| } |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void SkGpuDevice::makeRenderTargetCurrent() { |
| fContext->setRenderTarget(fRenderTarget); |
| fContext->flush(true); |
| fNeedPrepareRenderTarget = true; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| bool SkGpuDevice::readPixels(const SkIRect& srcRect, SkBitmap* bitmap) { |
| SkIRect bounds; |
| bounds.set(0, 0, this->width(), this->height()); |
| if (!bounds.intersect(srcRect)) { |
| return false; |
| } |
| |
| const int w = bounds.width(); |
| const int h = bounds.height(); |
| SkBitmap tmp; |
| // note we explicitly specify our rowBytes to be snug (no gap between rows) |
| tmp.setConfig(SkBitmap::kARGB_8888_Config, w, h, w * 4); |
| if (!tmp.allocPixels()) { |
| return false; |
| } |
| |
| SkAutoLockPixels alp(tmp); |
| fContext->setRenderTarget(fRenderTarget); |
| // we aren't setting the clip or matrix, so mark as dirty |
| // we don't need to set them for this call and don't have them anyway |
| fNeedPrepareRenderTarget = true; |
| |
| if (!fContext->readPixels(bounds.fLeft, bounds.fTop, |
| bounds.width(), bounds.height(), |
| GrTexture::kRGBA_8888_PixelConfig, |
| tmp.getPixels())) { |
| return false; |
| } |
| |
| tmp.swap(*bitmap); |
| return true; |
| } |
| |
| void SkGpuDevice::writePixels(const SkBitmap& bitmap, int x, int y) { |
| SkAutoLockPixels alp(bitmap); |
| if (!bitmap.readyToDraw()) { |
| return; |
| } |
| GrTexture::PixelConfig config = SkGr::BitmapConfig2PixelConfig(bitmap.config(), |
| bitmap.isOpaque()); |
| fContext->setRenderTarget(fRenderTarget); |
| // we aren't setting the clip or matrix, so mark as dirty |
| // we don't need to set them for this call and don't have them anyway |
| fNeedPrepareRenderTarget = true; |
| |
| fContext->writePixels(x, y, bitmap.width(), bitmap.height(), |
| config, bitmap.getPixels(), bitmap.rowBytes()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void convert_matrixclip(GrContext* context, const SkMatrix& matrix, |
| const SkClipStack& clipStack, |
| const SkRegion& clipRegion, |
| const SkIPoint& origin) { |
| GrMatrix grmat; |
| SkGr::SkMatrix2GrMatrix(matrix, &grmat); |
| context->setMatrix(grmat); |
| |
| SkGrClipIterator iter; |
| iter.reset(clipStack); |
| const SkIRect& skBounds = clipRegion.getBounds(); |
| GrRect bounds; |
| bounds.setLTRB(GrIntToScalar(skBounds.fLeft), |
| GrIntToScalar(skBounds.fTop), |
| GrIntToScalar(skBounds.fRight), |
| GrIntToScalar(skBounds.fBottom)); |
| GrClip grc(&iter, GrIntToScalar(-origin.x()), GrIntToScalar(-origin.y()), |
| &bounds); |
| context->setClip(grc); |
| } |
| |
| // call this ever each draw call, to ensure that the context reflects our state, |
| // and not the state from some other canvas/device |
| void SkGpuDevice::prepareRenderTarget(const SkDraw& draw) { |
| if (fNeedPrepareRenderTarget || |
| fContext->getRenderTarget() != fRenderTarget) { |
| |
| fContext->setRenderTarget(fRenderTarget); |
| SkASSERT(draw.fClipStack); |
| convert_matrixclip(fContext, *draw.fMatrix, |
| *draw.fClipStack, *draw.fClip, this->getOrigin()); |
| fNeedPrepareRenderTarget = false; |
| } |
| } |
| |
| void SkGpuDevice::setMatrixClip(const SkMatrix& matrix, const SkRegion& clip, |
| const SkClipStack& clipStack) { |
| this->INHERITED::setMatrixClip(matrix, clip, clipStack); |
| |
| convert_matrixclip(fContext, matrix, clipStack, clip, this->getOrigin()); |
| } |
| |
| void SkGpuDevice::gainFocus(SkCanvas* canvas, const SkMatrix& matrix, |
| const SkRegion& clip, const SkClipStack& clipStack) { |
| |
| fContext->setRenderTarget(fRenderTarget); |
| |
| this->INHERITED::gainFocus(canvas, matrix, clip, clipStack); |
| |
| convert_matrixclip(fContext, matrix, clipStack, clip, this->getOrigin()); |
| |
| if (fNeedClear) { |
| fContext->eraseColor(0x0); |
| fNeedClear = false; |
| } |
| } |
| |
| bool SkGpuDevice::bindDeviceAsTexture(GrPaint* paint) { |
| if (NULL != fTexture) { |
| paint->setTexture(fTexture); |
| return true; |
| } |
| return false; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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::kLast_BitmapType == 4, shader_type_mismatch); |
| |
| static const GrSamplerState::SampleMode sk_bmp_type_to_sample_mode[] = { |
| (GrSamplerState::SampleMode) -1, // kNone_BitmapType |
| GrSamplerState::kNormal_SampleMode, // kDefault_BitmapType |
| GrSamplerState::kRadial_SampleMode, // kRadial_BitmapType |
| GrSamplerState::kSweep_SampleMode, // kSweep_BitmapType |
| GrSamplerState::kRadial2_SampleMode, // kTwoPointRadial_BitmapType |
| }; |
| |
| bool SkGpuDevice::skPaint2GrPaintNoShader(const SkPaint& skPaint, |
| bool justAlpha, |
| GrPaint* grPaint) { |
| |
| grPaint->fDither = skPaint.isDither(); |
| grPaint->fAntiAlias = skPaint.isAntiAlias(); |
| |
| SkXfermode::Coeff sm = SkXfermode::kOne_Coeff; |
| SkXfermode::Coeff dm = SkXfermode::kISA_Coeff; |
| |
| SkXfermode* mode = skPaint.getXfermode(); |
| if (mode) { |
| if (!mode->asCoeff(&sm, &dm)) { |
| SkDEBUGCODE(SkDebugf("Unsupported xfer mode.\n");) |
| #if 0 |
| return false; |
| #endif |
| } |
| } |
| grPaint->fSrcBlendCoeff = sk_blend_to_grblend(sm); |
| grPaint->fDstBlendCoeff = sk_blend_to_grblend(dm); |
| |
| if (justAlpha) { |
| uint8_t alpha = skPaint.getAlpha(); |
| grPaint->fColor = GrColorPackRGBA(alpha, alpha, alpha, alpha); |
| } else { |
| grPaint->fColor = SkGr::SkColor2GrColor(skPaint.getColor()); |
| grPaint->setTexture(NULL); |
| } |
| return true; |
| } |
| |
| bool SkGpuDevice::skPaint2GrPaintShader(const SkPaint& skPaint, |
| SkAutoCachedTexture* act, |
| const SkMatrix& ctm, |
| GrPaint* grPaint) { |
| |
| SkASSERT(NULL != act); |
| |
| SkShader* shader = skPaint.getShader(); |
| if (NULL == shader) { |
| return this->skPaint2GrPaintNoShader(skPaint, false, grPaint); |
| grPaint->setTexture(NULL); |
| return true; |
| } else if (!this->skPaint2GrPaintNoShader(skPaint, true, grPaint)) { |
| return false; |
| } |
| |
| SkPaint noAlphaPaint(skPaint); |
| noAlphaPaint.setAlpha(255); |
| shader->setContext(this->accessBitmap(false), noAlphaPaint, ctm); |
| |
| SkBitmap bitmap; |
| SkMatrix matrix; |
| SkShader::TileMode tileModes[2]; |
| SkScalar twoPointParams[3]; |
| SkShader::BitmapType bmptype = shader->asABitmap(&bitmap, &matrix, |
| tileModes, twoPointParams); |
| |
| GrSamplerState::SampleMode sampleMode = sk_bmp_type_to_sample_mode[bmptype]; |
| if (-1 == sampleMode) { |
| SkDebugf("shader->asABitmap() == kNone_BitmapType\n"); |
| return false; |
| } |
| grPaint->fSampler.setSampleMode(sampleMode); |
| grPaint->fSampler.setFilter(skPaint.isFilterBitmap()); |
| grPaint->fSampler.setWrapX(sk_tile_mode_to_grwrap(tileModes[0])); |
| grPaint->fSampler.setWrapY(sk_tile_mode_to_grwrap(tileModes[1])); |
| if (GrSamplerState::kRadial2_SampleMode == sampleMode) { |
| grPaint->fSampler.setRadial2Params(twoPointParams[0], |
| twoPointParams[1], |
| twoPointParams[2] < 0); |
| } |
| |
| GrTexture* texture = act->set(this, bitmap, grPaint->fSampler); |
| if (NULL == texture) { |
| SkDebugf("Couldn't convert bitmap to texture.\n"); |
| return false; |
| } |
| grPaint->setTexture(texture); |
| |
| // since our texture coords will be in local space, we wack the texture |
| // matrix to map them back into 0...1 before we load it |
| SkMatrix localM; |
| if (shader->getLocalMatrix(&localM)) { |
| SkMatrix inverse; |
| if (localM.invert(&inverse)) { |
| matrix.preConcat(inverse); |
| } |
| } |
| if (SkShader::kDefault_BitmapType == bmptype) { |
| GrScalar sx = GrFixedToScalar(GR_Fixed1 / bitmap.width()); |
| GrScalar sy = GrFixedToScalar(GR_Fixed1 / bitmap.height()); |
| matrix.postScale(sx, sy); |
| } else if (SkShader::kRadial_BitmapType == bmptype) { |
| GrScalar s = GrFixedToScalar(GR_Fixed1 / bitmap.width()); |
| matrix.postScale(s, s); |
| } |
| GrMatrix grMat; |
| SkGr::SkMatrix2GrMatrix(matrix, &grMat); |
| grPaint->fSampler.setMatrix(grMat); |
| |
| return true; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class SkPositionSource { |
| public: |
| SkPositionSource(const SkPoint* points, int count) |
| : fPoints(points), fCount(count) {} |
| |
| int count() const { return fCount; } |
| |
| void writeValue(int i, GrPoint* dstPosition) const { |
| SkASSERT(i < fCount); |
| dstPosition->fX = SkScalarToGrScalar(fPoints[i].fX); |
| dstPosition->fY = SkScalarToGrScalar(fPoints[i].fY); |
| } |
| private: |
| const SkPoint* fPoints; |
| int fCount; |
| }; |
| |
| class SkTexCoordSource { |
| public: |
| SkTexCoordSource(const SkPoint* coords) |
| : fCoords(coords) {} |
| |
| void writeValue(int i, GrPoint* dstCoord) const { |
| dstCoord->fX = SkScalarToGrScalar(fCoords[i].fX); |
| dstCoord->fY = SkScalarToGrScalar(fCoords[i].fY); |
| } |
| private: |
| const SkPoint* fCoords; |
| }; |
| |
| class SkColorSource { |
| public: |
| SkColorSource(const SkColor* colors) : fColors(colors) {} |
| |
| void writeValue(int i, GrColor* dstColor) const { |
| *dstColor = SkGr::SkColor2GrColor(fColors[i]); |
| } |
| private: |
| const SkColor* fColors; |
| }; |
| |
| class SkIndexSource { |
| public: |
| SkIndexSource(const uint16_t* indices, int count) |
| : fIndices(indices), fCount(count) { |
| } |
| |
| int count() const { return fCount; } |
| |
| void writeValue(int i, uint16_t* dstIndex) const { |
| *dstIndex = fIndices[i]; |
| } |
| |
| private: |
| const uint16_t* fIndices; |
| int fCount; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #if 0 // not currently being used so don't compile, |
| |
| // can be used for positions or texture coordinates |
| |
| class SkRectFanSource { |
| public: |
| SkRectFanSource(const SkRect& rect) : fRect(rect) {} |
| |
| int count() const { return 4; } |
| |
| void writeValue(int i, GrPoint* dstPoint) const { |
| SkASSERT(i < 4); |
| dstPoint->fX = SkScalarToGrScalar((i % 3) ? fRect.fRight : |
| fRect.fLeft); |
| dstPoint->fY = SkScalarToGrScalar((i < 2) ? fRect.fTop : |
| fRect.fBottom); |
| } |
| private: |
| const SkRect& fRect; |
| }; |
| |
| class SkIRectFanSource { |
| public: |
| SkIRectFanSource(const SkIRect& rect) : fRect(rect) {} |
| |
| int count() const { return 4; } |
| |
| void writeValue(int i, GrPoint* dstPoint) const { |
| SkASSERT(i < 4); |
| dstPoint->fX = (i % 3) ? GrIntToScalar(fRect.fRight) : |
| GrIntToScalar(fRect.fLeft); |
| dstPoint->fY = (i < 2) ? GrIntToScalar(fRect.fTop) : |
| GrIntToScalar(fRect.fBottom); |
| } |
| private: |
| const SkIRect& fRect; |
| }; |
| |
| class SkMatRectFanSource { |
| public: |
| SkMatRectFanSource(const SkRect& rect, const SkMatrix& matrix) |
| : fRect(rect), fMatrix(matrix) {} |
| |
| int count() const { return 4; } |
| |
| void writeValue(int i, GrPoint* dstPoint) const { |
| SkASSERT(i < 4); |
| |
| #if SK_SCALAR_IS_GR_SCALAR |
| fMatrix.mapXY((i % 3) ? fRect.fRight : fRect.fLeft, |
| (i < 2) ? fRect.fTop : fRect.fBottom, |
| (SkPoint*)dstPoint); |
| #else |
| SkPoint dst; |
| fMatrix.mapXY((i % 3) ? fRect.fRight : fRect.fLeft, |
| (i < 2) ? fRect.fTop : fRect.fBottom, |
| &dst); |
| dstPoint->fX = SkScalarToGrScalar(dst.fX); |
| dstPoint->fY = SkScalarToGrScalar(dst.fY); |
| #endif |
| } |
| private: |
| const SkRect& fRect; |
| const SkMatrix& fMatrix; |
| }; |
| |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| |
| fContext->drawPaint(grPaint); |
| } |
| |
| // must be in SkCanvas::PointMode order |
| static const GrPrimitiveType gPointMode2PrimtiveType[] = { |
| kPoints_PrimitiveType, |
| kLines_PrimitiveType, |
| kLineStrip_PrimitiveType |
| }; |
| |
| void SkGpuDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode, |
| size_t count, const SkPoint pts[], const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| SkScalar width = paint.getStrokeWidth(); |
| if (width < 0) { |
| return; |
| } |
| |
| // we only handle hairlines here, else we let the SkDraw call our drawPath() |
| if (width > 0) { |
| draw.drawPoints(mode, count, pts, paint, true); |
| return; |
| } |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| |
| #if SK_SCALAR_IS_GR_SCALAR |
| fContext->drawVertices(grPaint, |
| gPointMode2PrimtiveType[mode], |
| count, |
| (GrPoint*)pts, |
| NULL, |
| NULL, |
| NULL, |
| 0); |
| #else |
| fContext->drawCustomVertices(grPaint, |
| gPointMode2PrimtiveType[mode], |
| SkPositionSource(pts, count)); |
| #endif |
| } |
| |
| void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect, |
| const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| bool doStroke = paint.getStyle() == SkPaint::kStroke_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 reason we might need to call drawPath... |
| if (paint.getMaskFilter()) { |
| usePath = true; |
| } |
| |
| if (usePath) { |
| SkPath path; |
| path.addRect(rect); |
| this->drawPath(draw, path, paint, NULL, true); |
| return; |
| } |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| fContext->drawRect(grPaint, Sk2Gr(rect), doStroke ? width : -1); |
| } |
| |
| #include "SkMaskFilter.h" |
| #include "SkBounder.h" |
| |
| static bool drawWithMaskFilter(GrContext* context, const SkPath& path, |
| SkMaskFilter* filter, const SkMatrix& matrix, |
| const SkRegion& clip, SkBounder* bounder, |
| GrPaint* grp) { |
| SkMask srcM, dstM; |
| |
| if (!SkDraw::DrawToMask(path, &clip.getBounds(), filter, &matrix, &srcM, |
| SkMask::kComputeBoundsAndRenderImage_CreateMode)) { |
| return false; |
| } |
| |
| SkAutoMaskImage autoSrc(&srcM, false); |
| |
| if (!filter->filterMask(&dstM, srcM, matrix, NULL)) { |
| return false; |
| } |
| // this will free-up dstM when we're done (allocated in filterMask()) |
| SkAutoMaskImage autoDst(&dstM, false); |
| |
| 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 |
| |
| GrAutoMatrix avm(context, GrMatrix::I()); |
| |
| const GrGpu::TextureDesc desc = { |
| 0, |
| GrGpu::kNone_AALevel, |
| dstM.fBounds.width(), |
| dstM.fBounds.height(), |
| GrTexture::kAlpha_8_PixelConfig |
| }; |
| |
| GrTexture* texture = context->createUncachedTexture(desc, dstM.fImage, |
| dstM.fRowBytes); |
| if (NULL == texture) { |
| return false; |
| } |
| |
| grp->setTexture(texture); |
| texture->unref(); |
| grp->fSampler.setClampNoFilter(); |
| |
| GrRect d; |
| d.setLTRB(GrIntToScalar(dstM.fBounds.fLeft), |
| GrIntToScalar(dstM.fBounds.fTop), |
| GrIntToScalar(dstM.fBounds.fRight), |
| GrIntToScalar(dstM.fBounds.fBottom)); |
| GrRect s; |
| s.setLTRB(0, 0, GR_Scalar1, GR_Scalar1); |
| context->drawRectToRect(*grp, d, s); |
| return true; |
| } |
| |
| void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath, |
| const SkPaint& paint, const SkMatrix* prePathMatrix, |
| bool pathIsMutable) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| |
| // BEGIN lift from SkDraw::drawPath() |
| |
| SkPath* pathPtr = const_cast<SkPath*>(&origSrcPath); |
| bool doFill = true; |
| SkPath tmpPath; |
| |
| 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;) |
| |
| if (paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style) { |
| doFill = paint.getFillPath(*pathPtr, &tmpPath); |
| pathPtr = &tmpPath; |
| } |
| |
| // END lift from SkDraw::drawPath() |
| |
| if (paint.getMaskFilter()) { |
| // avoid possibly allocating a new path in transform if we can |
| SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath; |
| |
| // transform the path into device space |
| pathPtr->transform(*draw.fMatrix, devPathPtr); |
| |
| drawWithMaskFilter(fContext, *devPathPtr, paint.getMaskFilter(), |
| *draw.fMatrix, *draw.fClip, draw.fBounder, &grPaint); |
| return; |
| } |
| |
| GrPathFill fill = kHairLine_PathFill; |
| |
| if (doFill) { |
| switch (pathPtr->getFillType()) { |
| case SkPath::kWinding_FillType: |
| fill = kWinding_PathFill; |
| break; |
| case SkPath::kEvenOdd_FillType: |
| fill = kEvenOdd_PathFill; |
| break; |
| case SkPath::kInverseWinding_FillType: |
| fill = kInverseWinding_PathFill; |
| break; |
| case SkPath::kInverseEvenOdd_FillType: |
| fill = kInverseEvenOdd_PathFill; |
| break; |
| default: |
| SkDebugf("Unsupported path fill type\n"); |
| return; |
| } |
| } |
| |
| SkGrPathIter iter(*pathPtr); |
| fContext->drawPath(grPaint, &iter, fill); |
| } |
| |
| void SkGpuDevice::drawBitmap(const SkDraw& draw, |
| const SkBitmap& bitmap, |
| const SkIRect* srcRectPtr, |
| const SkMatrix& m, |
| const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| SkIRect srcRect; |
| if (NULL == srcRectPtr) { |
| srcRect.set(0, 0, bitmap.width(), bitmap.height()); |
| } else { |
| srcRect = *srcRectPtr; |
| } |
| |
| GrPaint grPaint; |
| if (!this->skPaint2GrPaintNoShader(paint, true, &grPaint)) { |
| return; |
| } |
| grPaint.fSampler.setFilter(paint.isFilterBitmap()); |
| |
| const int maxTextureDim = fContext->getMaxTextureDimension(); |
| if (bitmap.getTexture() || (bitmap.width() <= maxTextureDim && |
| bitmap.height() <= maxTextureDim)) { |
| // take the fast case |
| this->internalDrawBitmap(draw, bitmap, srcRect, m, &grPaint); |
| return; |
| } |
| |
| // undo the translate done by SkCanvas |
| int DX = SkMax32(0, srcRect.fLeft); |
| int DY = SkMax32(0, srcRect.fTop); |
| // compute clip bounds in local coordinates |
| SkIRect clipRect; |
| { |
| SkRect r; |
| r.set(draw.fClip->getBounds()); |
| SkMatrix matrix, inverse; |
| matrix.setConcat(*draw.fMatrix, m); |
| if (!matrix.invert(&inverse)) { |
| return; |
| } |
| inverse.mapRect(&r); |
| r.roundOut(&clipRect); |
| // apply the canvas' translate to our local clip |
| clipRect.offset(DX, DY); |
| } |
| |
| int nx = bitmap.width() / maxTextureDim; |
| int ny = bitmap.height() / maxTextureDim; |
| for (int x = 0; x <= nx; x++) { |
| for (int y = 0; y <= ny; y++) { |
| SkIRect tileR; |
| tileR.set(x * maxTextureDim, y * maxTextureDim, |
| (x + 1) * maxTextureDim, (y + 1) * maxTextureDim); |
| if (!SkIRect::Intersects(tileR, clipRect)) { |
| continue; |
| } |
| |
| SkIRect srcR = tileR; |
| if (!srcR.intersect(srcRect)) { |
| continue; |
| } |
| |
| SkBitmap tmpB; |
| if (bitmap.extractSubset(&tmpB, tileR)) { |
| // now offset it to make it "local" to our tmp bitmap |
| srcR.offset(-tileR.fLeft, -tileR.fTop); |
| |
| SkMatrix tmpM(m); |
| { |
| int dx = tileR.fLeft - DX + SkMax32(0, srcR.fLeft); |
| int dy = tileR.fTop - DY + SkMax32(0, srcR.fTop); |
| tmpM.preTranslate(SkIntToScalar(dx), SkIntToScalar(dy)); |
| } |
| this->internalDrawBitmap(draw, tmpB, srcR, tmpM, &grPaint); |
| } |
| } |
| } |
| } |
| |
| /* |
| * 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 SkDraw& draw, |
| const SkBitmap& bitmap, |
| const SkIRect& srcRect, |
| const SkMatrix& m, |
| GrPaint* grPaint) { |
| SkASSERT(bitmap.width() <= fContext->getMaxTextureDimension() && |
| bitmap.height() <= fContext->getMaxTextureDimension()); |
| |
| SkAutoLockPixels alp(bitmap); |
| if (!bitmap.getTexture() && !bitmap.readyToDraw()) { |
| return; |
| } |
| |
| grPaint->fSampler.setWrapX(GrSamplerState::kClamp_WrapMode); |
| grPaint->fSampler.setWrapY(GrSamplerState::kClamp_WrapMode); |
| grPaint->fSampler.setSampleMode(GrSamplerState::kNormal_SampleMode); |
| grPaint->fSampler.setMatrix(GrMatrix::I()); |
| |
| GrTexture* texture; |
| SkAutoCachedTexture act(this, bitmap, grPaint->fSampler, &texture); |
| if (NULL == texture) { |
| return; |
| } |
| |
| grPaint->setTexture(texture); |
| |
| GrRect dstRect(0, 0, GrIntToScalar(srcRect.width()), GrIntToScalar(srcRect.height())); |
| GrRect paintRect; |
| paintRect.setLTRB(GrFixedToScalar((srcRect.fLeft << 16) / bitmap.width()), |
| GrFixedToScalar((srcRect.fTop << 16) / bitmap.height()), |
| GrFixedToScalar((srcRect.fRight << 16) / bitmap.width()), |
| GrFixedToScalar((srcRect.fBottom << 16) / bitmap.height())); |
| |
| GrMatrix grMat; |
| SkGr::SkMatrix2GrMatrix(m, &grMat); |
| |
| fContext->drawRectToRect(*grPaint, dstRect, paintRect, &grMat); |
| } |
| |
| void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap, |
| int left, int top, const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| SkAutoLockPixels alp(bitmap); |
| if (!bitmap.getTexture() && !bitmap.readyToDraw()) { |
| return; |
| } |
| |
| GrPaint grPaint; |
| if(!this->skPaint2GrPaintNoShader(paint, true, &grPaint)) { |
| return; |
| } |
| |
| GrAutoMatrix avm(fContext, GrMatrix::I()); |
| |
| GrTexture* texture; |
| grPaint.fSampler.setClampNoFilter(); |
| SkAutoCachedTexture act(this, bitmap, grPaint.fSampler, &texture); |
| |
| grPaint.setTexture(texture); |
| |
| fContext->drawRectToRect(grPaint, |
| GrRect(GrIntToScalar(left), GrIntToScalar(top), |
| GrIntToScalar(left + bitmap.width()), |
| GrIntToScalar(top + bitmap.height())), |
| GrRect(0, 0, GR_Scalar1, GR_Scalar1)); |
| } |
| |
| void SkGpuDevice::drawDevice(const SkDraw& draw, SkDevice* dev, |
| int x, int y, const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| GrPaint grPaint; |
| if (!((SkGpuDevice*)dev)->bindDeviceAsTexture(&grPaint) || |
| !this->skPaint2GrPaintNoShader(paint, true, &grPaint)) { |
| return; |
| } |
| |
| SkASSERT(NULL != grPaint.getTexture()); |
| |
| const SkBitmap& bm = dev->accessBitmap(false); |
| int w = bm.width(); |
| int h = bm.height(); |
| |
| GrAutoMatrix avm(fContext, GrMatrix::I()); |
| |
| grPaint.fSampler.setClampNoFilter(); |
| |
| fContext->drawRectToRect(grPaint, |
| GrRect(GrIntToScalar(x), |
| GrIntToScalar(y), |
| GrIntToScalar(x + w), |
| GrIntToScalar(y + h)), |
| GrRect(0, 0, GR_Scalar1, GR_Scalar1)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // must be in SkCanvas::VertexMode order |
| static const GrPrimitiveType gVertexMode2PrimitiveType[] = { |
| kTriangles_PrimitiveType, |
| kTriangleStrip_PrimitiveType, |
| kTriangleFan_PrimitiveType, |
| }; |
| |
| 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); |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| // we ignore the shader if texs is null. |
| if (NULL == texs) { |
| if (!this->skPaint2GrPaintNoShader(paint, false, &grPaint)) { |
| return; |
| } |
| } else { |
| if (!this->skPaint2GrPaintShader(paint, &act, |
| *draw.fMatrix, |
| &grPaint)) { |
| return; |
| } |
| } |
| |
| if (NULL != xmode && NULL != texs && NULL != colors) { |
| SkXfermode::Mode mode; |
| if (!SkXfermode::IsMode(xmode, &mode) || |
| SkXfermode::kMultiply_Mode != mode) { |
| SkDebugf("Unsupported vertex-color/texture xfer mode.\n"); |
| #if 0 |
| return |
| #endif |
| } |
| } |
| |
| #if SK_SCALAR_IS_GR_SCALAR |
| // even if GrColor and SkColor byte offsets match we need |
| // to perform pre-multiply. |
| if (NULL == colors) { |
| fContext->drawVertices(grPaint, |
| gVertexMode2PrimitiveType[vmode], |
| vertexCount, |
| (GrPoint*) vertices, |
| (GrPoint*) texs, |
| NULL, |
| indices, |
| indexCount); |
| } else |
| #endif |
| { |
| SkTexCoordSource texSrc(texs); |
| SkColorSource colSrc(colors); |
| SkIndexSource idxSrc(indices, indexCount); |
| |
| fContext->drawCustomVertices(grPaint, |
| gVertexMode2PrimitiveType[vmode], |
| SkPositionSource(vertices, vertexCount), |
| (NULL == texs) ? NULL : &texSrc, |
| (NULL == colors) ? NULL : &colSrc, |
| (NULL == indices) ? NULL : &idxSrc); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void GlyphCacheAuxProc(void* data) { |
| delete (GrFontScaler*)data; |
| } |
| |
| 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 = new 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 = (GrSkDrawProcs*)state.fDraw->fProcs; |
| |
| if (NULL == procs->fFontScaler) { |
| procs->fFontScaler = get_gr_font_scaler(state.fCache); |
| } |
| procs->fTextContext->drawPackedGlyph(GrGlyph::Pack(glyph.getGlyphID(), fx, 0), |
| SkIntToFixed(SkFixedFloor(fx)), fy, |
| procs->fFontScaler); |
| } |
| |
| SkDrawProcs* SkGpuDevice::initDrawForText(GrTextContext* context) { |
| |
| // deferred allocation |
| if (NULL == fDrawProcs) { |
| fDrawProcs = new 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); |
| |
| if (draw.fMatrix->getType() & SkMatrix::kPerspective_Mask) { |
| // this guy will just call our drawPath() |
| draw.drawText((const char*)text, byteLength, x, y, paint); |
| } else { |
| SkAutoExtMatrix aem(draw.fExtMatrix); |
| SkDraw myDraw(draw); |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| GrTextContext context(fContext, grPaint, aem.extMatrix()); |
| 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); |
| |
| if (draw.fMatrix->getType() & SkMatrix::kPerspective_Mask) { |
| // this guy will just call our drawPath() |
| draw.drawPosText((const char*)text, byteLength, pos, constY, |
| scalarsPerPos, paint); |
| } else { |
| SkAutoExtMatrix aem(draw.fExtMatrix); |
| SkDraw myDraw(draw); |
| |
| GrPaint grPaint; |
| SkAutoCachedTexture act; |
| if (!this->skPaint2GrPaintShader(paint, &act, *draw.fMatrix, &grPaint)) { |
| return; |
| } |
| |
| GrTextContext context(fContext, grPaint, aem.extMatrix()); |
| 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); |
| |
| 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; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkGpuDevice::TexCache* SkGpuDevice::lockCachedTexture(const SkBitmap& bitmap, |
| const GrSamplerState& sampler, |
| GrTexture** texture, |
| bool forDeviceRenderTarget) { |
| GrContext* ctx = this->context(); |
| uint32_t p0, p1; |
| if (forDeviceRenderTarget) { |
| p0 = p1 = -1; |
| } else { |
| p0 = bitmap.getGenerationID(); |
| p1 = bitmap.pixelRefOffset(); |
| } |
| |
| GrTexture* newTexture = NULL; |
| GrTextureKey key(p0, p1, bitmap.width(), bitmap.height()); |
| GrTextureEntry* entry = ctx->findAndLockTexture(&key, sampler); |
| |
| if (NULL == entry) { |
| |
| if (forDeviceRenderTarget) { |
| const GrGpu::TextureDesc desc = { |
| GrGpu::kRenderTarget_TextureFlag, |
| GrGpu::kNone_AALevel, |
| bitmap.width(), |
| bitmap.height(), |
| SkGr::Bitmap2PixelConfig(bitmap) |
| }; |
| entry = ctx->createAndLockTexture(&key, sampler, desc, NULL, 0); |
| |
| } else { |
| entry = sk_gr_create_bitmap_texture(ctx, &key, sampler, bitmap); |
| } |
| if (NULL == entry) { |
| GrPrintf("---- failed to create texture for cache [%d %d]\n", |
| bitmap.width(), bitmap.height()); |
| } |
| } |
| |
| if (NULL != entry) { |
| newTexture = entry->texture(); |
| if (texture) { |
| *texture = newTexture; |
| } |
| // IMPORTANT: We can't allow another SkGpuDevice to get this |
| // cache entry until this one is destroyed! |
| if (forDeviceRenderTarget) { |
| ctx->detachCachedTexture(entry); |
| } |
| } |
| return (TexCache*)entry; |
| } |
| |
| void SkGpuDevice::unlockCachedTexture(TexCache* cache) { |
| this->context()->unlockTexture((GrTextureEntry*)cache); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkGpuDeviceFactory::SkGpuDeviceFactory(GrContext* context, |
| GrRenderTarget* rootRenderTarget) |
| : fContext(context) { |
| |
| GrAssert(NULL != context); |
| GrAssert(NULL != rootRenderTarget); |
| |
| // check this now rather than passing this value to SkGpuDevice cons. |
| // we want the rt that is bound *now* in the 3D API, not the one |
| // at the time of newDevice. |
| if (SkGpuDevice::Current3DApiRenderTarget() == rootRenderTarget) { |
| fRootRenderTarget = context->createRenderTargetFrom3DApiState(); |
| } else { |
| fRootRenderTarget = rootRenderTarget; |
| rootRenderTarget->ref(); |
| } |
| context->ref(); |
| |
| } |
| |
| SkGpuDeviceFactory::~SkGpuDeviceFactory() { |
| fContext->unref(); |
| fRootRenderTarget->unref(); |
| } |
| |
| SkDevice* SkGpuDeviceFactory::newDevice(SkCanvas*, SkBitmap::Config config, |
| int width, int height, |
| bool isOpaque, bool isLayer) { |
| SkBitmap bm; |
| bm.setConfig(config, width, height); |
| bm.setIsOpaque(isOpaque); |
| return new SkGpuDevice(fContext, bm, isLayer ? NULL : fRootRenderTarget); |
| } |
| |
