| /* |
| Copyright 2010 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; |
| device->context()->setTexture(0, texture); |
| } 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 |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkGpuDevice::SkGpuDevice(GrContext* context, const SkBitmap& bitmap, bool isLayer) |
| : SkDevice(NULL, bitmap, false) { |
| |
| fNeedPrepareRenderTarget = false; |
| fDrawProcs = NULL; |
| |
| // should I ref() this, and then unref in destructor? <mrr> |
| fContext = context; |
| |
| fCache = NULL; |
| fTexture = NULL; |
| fRenderTarget = NULL; |
| fNeedClear = false; |
| |
| if (isLayer) { |
| 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(fTexture->isRenderTarget()); |
| } |
| #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()); |
| } |
| } |
| |
| if (NULL == fRenderTarget) { |
| GrAssert(NULL == fCache); |
| GrAssert(NULL == fTexture); |
| |
| fRenderTarget = fContext->currentRenderTarget(); |
| fRenderTarget->ref(); |
| fContext->setDefaultRenderTargetSize(this->width(), this->height()); |
| } |
| } |
| |
| 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(); |
| } |
| } |
| |
| void SkGpuDevice::bindDeviceToTargetHandle(intptr_t handle) { |
| 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); |
| fTexture->unref(); |
| } else if (NULL != fRenderTarget) { |
| fRenderTarget->unref(); |
| } |
| |
| fCache = NULL; |
| fTexture = NULL; |
| fRenderTarget = fContext->createPlatformRenderTarget(handle, |
| this->width(), |
| this->height()); |
| } |
| |
| 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 SkRegion& clip) { |
| GrMatrix grmat; |
| SkGr::SkMatrix2GrMatrix(matrix, &grmat); |
| context->setViewMatrix(grmat); |
| |
| SkGrClipIterator iter; |
| iter.reset(clip); |
| GrClip grc(&iter); |
| if (context->getClip() == grc) { |
| } else { |
| 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->currentRenderTarget() != fRenderTarget) { |
| |
| fContext->setRenderTarget(fRenderTarget); |
| convert_matrixclip(fContext, *draw.fMatrix, *draw.fClip); |
| fNeedPrepareRenderTarget = false; |
| } |
| } |
| |
| void SkGpuDevice::setMatrixClip(const SkMatrix& matrix, const SkRegion& clip) { |
| this->INHERITED::setMatrixClip(matrix, clip); |
| |
| convert_matrixclip(fContext, matrix, clip); |
| } |
| |
| void SkGpuDevice::gainFocus(SkCanvas* canvas, const SkMatrix& matrix, |
| const SkRegion& clip) { |
| fContext->setRenderTarget(fRenderTarget); |
| |
| this->INHERITED::gainFocus(canvas, matrix, clip); |
| |
| convert_matrixclip(fContext, matrix, clip); |
| |
| if (fNeedClear) { |
| fContext->eraseColor(0x0); |
| fNeedClear = false; |
| } |
| } |
| |
| bool SkGpuDevice::bindDeviceAsTexture(SkPoint* max) { |
| if (NULL != fTexture) { |
| fContext->setTexture(0, fTexture); |
| if (NULL != max) { |
| max->set(SkFixedToScalar((width() << 16) / |
| fTexture->allocWidth()), |
| SkFixedToScalar((height() << 16) / |
| fTexture->allocHeight())); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // must be in the same order as SkXfermode::Coeff in SkXfermode.h |
| |
| SkGpuDevice::AutoPaintShader::AutoPaintShader() { |
| fSuccess = false; |
| fTexture = NULL; |
| } |
| |
| SkGpuDevice::AutoPaintShader::AutoPaintShader(SkGpuDevice* device, |
| const SkPaint& paint, |
| const SkMatrix& matrix) { |
| fSuccess = false; |
| fTexture = NULL; |
| this->init(device, paint, matrix); |
| } |
| |
| void SkGpuDevice::AutoPaintShader::init(SkGpuDevice* device, |
| const SkPaint& paint, |
| const SkMatrix& ctm) { |
| fSuccess = true; |
| GrContext* ctx = device->context(); |
| sk_gr_set_paint(ctx, paint); // should we pass true for justAlpha if we have a shader/texture? |
| |
| SkShader* shader = paint.getShader(); |
| if (NULL == shader) { |
| return; |
| } |
| |
| if (!shader->setContext(device->accessBitmap(false), paint, ctm)) { |
| fSuccess = false; |
| return; |
| } |
| |
| GrSamplerState::SampleMode sampleMode; |
| SkBitmap bitmap; |
| SkMatrix matrix; |
| SkShader::TileMode tileModes[2]; |
| SkScalar twoPointParams[3]; |
| SkShader::BitmapType bmptype = shader->asABitmap(&bitmap, &matrix, |
| tileModes, twoPointParams); |
| |
| switch (bmptype) { |
| case SkShader::kNone_BitmapType: |
| SkDebugf("shader->asABitmap() == kNone_BitmapType"); |
| return; |
| case SkShader::kDefault_BitmapType: |
| sampleMode = GrSamplerState::kNormal_SampleMode; |
| break; |
| case SkShader::kRadial_BitmapType: |
| sampleMode = GrSamplerState::kRadial_SampleMode; |
| break; |
| case SkShader::kSweep_BitmapType: |
| sampleMode = GrSamplerState::kSweep_SampleMode; |
| break; |
| case SkShader::kTwoPointRadial_BitmapType: |
| sampleMode = GrSamplerState::kRadial2_SampleMode; |
| break; |
| default: |
| SkASSERT("Unexpected return from asABitmap"); |
| return; |
| } |
| |
| bitmap.lockPixels(); |
| if (!bitmap.getTexture() && !bitmap.readyToDraw()) { |
| return; |
| } |
| |
| // see if we've already cached the bitmap from the shader |
| GrSamplerState samplerState(sk_tile_mode_to_grwrap(tileModes[0]), |
| sk_tile_mode_to_grwrap(tileModes[1]), |
| sampleMode, |
| paint.isFilterBitmap()); |
| |
| if (GrSamplerState::kRadial2_SampleMode == sampleMode) { |
| samplerState.setRadial2Params(twoPointParams[0], |
| twoPointParams[1], |
| twoPointParams[2] < 0); |
| } |
| |
| GrTexture* texture = fCachedTexture.set(device, bitmap, samplerState); |
| if (NULL == texture) { |
| return; |
| } |
| |
| // the lock has already called setTexture for us |
| ctx->setSamplerState(0, samplerState); |
| |
| // 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 = (GR_Scalar1 * texture->contentWidth()) / |
| (bitmap.width() * texture->allocWidth()); |
| GrScalar sy = (GR_Scalar1 * texture->contentHeight()) / |
| (bitmap.height() * texture->allocHeight()); |
| matrix.postScale(sx, sy); |
| |
| } else if (SkShader::kRadial_BitmapType == bmptype) { |
| GrScalar s = (GR_Scalar1 * texture->contentWidth()) / |
| (bitmap.width() * texture->allocWidth()); |
| matrix.postScale(s, s); |
| } |
| GrMatrix grmat; |
| SkGr::SkMatrix2GrMatrix(matrix, &grmat); |
| ctx->setTextureMatrix(0, grmat); |
| |
| // since we're going to use a shader/texture, we don't want the color, |
| // just its alpha |
| ctx->setAlpha(paint.getAlpha()); |
| // report that we have setup the texture |
| fSuccess = true; |
| fTexture = texture; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| AutoPaintShader shader(this, paint, *draw.fMatrix); |
| if (shader.failed()) { |
| return; |
| } |
| fContext->drawFull(shader.useTex()); |
| } |
| |
| // must be in SkCanvas::PointMode order |
| static const GrGpu::PrimitiveType gPointMode2PrimtiveType[] = { |
| GrGpu::kPoints_PrimitiveType, |
| GrGpu::kLines_PrimitiveType, |
| GrGpu::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; |
| } |
| |
| AutoPaintShader shader(this, paint, *draw.fMatrix); |
| if (shader.failed()) { |
| return; |
| } |
| |
| GrVertexLayout layout = shader.useTex() ? |
| GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) : |
| 0; |
| #if SK_SCALAR_IS_GR_SCALAR |
| fContext->setVertexSourceToArray(pts, layout); |
| fContext->drawNonIndexed(gPointMode2PrimtiveType[mode], 0, count); |
| #else |
| GrPoint* v; |
| fContext->reserveAndLockGeometry(layout, count, 0, (void**)&v, NULL); |
| for (size_t i = 0; i < count; ++i) { |
| v[i].set(SkScalarToGrScalar(pts[i].fX), SkScalarToGrScalar(pts[i].fY)); |
| } |
| fContext->drawNonIndexed(gPointMode2PrimtiveType[mode], 0, count); |
| fContext->releaseReservedGeometry(); |
| #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. (i.e. non-miter thick stroke) |
| */ |
| if (doStroke && width > 0 && paint.getStrokeJoin() != SkPaint::kMiter_Join) { |
| SkPath path; |
| path.addRect(rect); |
| this->drawPath(draw, path, paint, NULL, true); |
| return; |
| } |
| |
| AutoPaintShader shader(this, paint, *draw.fMatrix); |
| if (shader.failed()) { |
| return; |
| } |
| |
| fContext->drawRect(Sk2Gr(rect), shader.useTex(), doStroke ? width : -1); |
| } |
| |
| void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& path, |
| const SkPaint& paint, const SkMatrix* prePathMatrix, |
| bool pathIsMutable) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| AutoPaintShader shader(this, paint, *draw.fMatrix); |
| if (shader.failed()) { |
| return; |
| } |
| |
| const SkPath* pathPtr = &path; |
| SkPath tmpPath; |
| |
| if (prePathMatrix) { |
| if (pathIsMutable) { |
| const_cast<SkPath*>(pathPtr)->transform(*prePathMatrix); |
| } else { |
| path.transform(*prePathMatrix, &tmpPath); |
| pathPtr = &tmpPath; |
| } |
| } |
| |
| SkPath fillPath; |
| GrContext::PathFills fill = GrContext::kHairLine_PathFill; |
| |
| if (paint.getFillPath(*pathPtr, &fillPath)) { |
| switch (fillPath.getFillType()) { |
| case SkPath::kWinding_FillType: |
| fill = GrContext::kWinding_PathFill; |
| break; |
| case SkPath::kEvenOdd_FillType: |
| fill = GrContext::kEvenOdd_PathFill; |
| break; |
| case SkPath::kInverseWinding_FillType: |
| fill = GrContext::kInverseWinding_PathFill; |
| break; |
| case SkPath::kInverseEvenOdd_FillType: |
| fill = GrContext::kInverseEvenOdd_PathFill; |
| break; |
| default: |
| SkDebugf("Unsupported path fill type"); |
| return; |
| } |
| } |
| |
| SkGrPathIter iter(fillPath); |
| fContext->drawPath(&iter, fill, shader.useTex()); |
| } |
| |
| /* |
| * This value must not exceed the GPU's texture dimension limit, but it can |
| * be smaller, if that helps avoid very large single textures hurting the |
| * cache. |
| */ |
| #define MAX_TEXTURE_DIM 512 |
| |
| 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; |
| } |
| |
| if (bitmap.getTexture() || (bitmap.width() <= MAX_TEXTURE_DIM && |
| bitmap.height() <= MAX_TEXTURE_DIM)) { |
| // take the fast case |
| this->internalDrawBitmap(draw, bitmap, srcRect, m, paint); |
| 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() / MAX_TEXTURE_DIM; |
| int ny = bitmap.height() / MAX_TEXTURE_DIM; |
| for (int x = 0; x <= nx; x++) { |
| for (int y = 0; y <= ny; y++) { |
| SkIRect tileR; |
| tileR.set(x * MAX_TEXTURE_DIM, y * MAX_TEXTURE_DIM, |
| (x + 1) * MAX_TEXTURE_DIM, (y + 1) * MAX_TEXTURE_DIM); |
| 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, paint); |
| } |
| } |
| } |
| } |
| |
| /* |
| * 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. |
| */ |
| void SkGpuDevice::internalDrawBitmap(const SkDraw& draw, |
| const SkBitmap& bitmap, |
| const SkIRect& srcRect, |
| const SkMatrix& m, |
| const SkPaint& paint) { |
| SkASSERT(bitmap.width() <= MAX_TEXTURE_DIM && |
| bitmap.height() <= MAX_TEXTURE_DIM); |
| |
| SkAutoLockPixels alp(bitmap); |
| if (!bitmap.getTexture() && !bitmap.readyToDraw()) { |
| return; |
| } |
| |
| GrSamplerState sampler(paint.isFilterBitmap()); // defaults to clamp |
| // the lock has already called setTexture for us |
| fContext->setSamplerState(0, sampler); |
| |
| GrTexture* texture; |
| SkAutoCachedTexture act(this, bitmap, sampler, &texture); |
| if (NULL == texture) { |
| return; |
| } |
| |
| GrVertexLayout layout = GrDrawTarget::StageTexCoordVertexLayoutBit(0, 0); |
| |
| GrPoint* vertex; |
| if (!fContext->reserveAndLockGeometry(layout, 4, |
| 0, GrTCast<void**>(&vertex), NULL)) { |
| return; |
| } |
| |
| { |
| GrMatrix grmat; |
| SkGr::SkMatrix2GrMatrix(m, &grmat); |
| vertex[0].setIRectFan(0, 0, srcRect.width(), srcRect.height(), |
| 2*sizeof(GrPoint)); |
| grmat.mapPointsWithStride(vertex, 2*sizeof(GrPoint), 4); |
| } |
| |
| SkScalar left = SkFixedToScalar((srcRect.fLeft << 16) / |
| texture->allocWidth()); |
| SkScalar right = SkFixedToScalar((srcRect.fRight << 16) / |
| texture->allocWidth()); |
| SkScalar top = SkFixedToScalar((srcRect.fTop << 16) / |
| texture->allocHeight()); |
| SkScalar bottom = SkFixedToScalar((srcRect.fBottom << 16) / |
| texture->allocHeight()); |
| vertex[1].setRectFan(left, top, right, bottom, 2*sizeof(GrPoint)); |
| |
| fContext->setTextureMatrix(0, GrMatrix::I()); |
| // now draw the mesh |
| sk_gr_set_paint(fContext, paint, true); |
| fContext->drawNonIndexed(GrGpu::kTriangleFan_PrimitiveType, 0, 4); |
| fContext->releaseReservedGeometry(); |
| } |
| |
| static void gl_drawSprite(GrContext* ctx, |
| int x, int y, int w, int h, const SkPoint& max, |
| const SkPaint& paint) { |
| GrAutoViewMatrix avm(ctx, GrMatrix::I()); |
| |
| ctx->setSamplerState(0, GrSamplerState::ClampNoFilter()); |
| ctx->setTextureMatrix(0, GrMatrix::I()); |
| |
| GrPoint* vertex; |
| GrVertexLayout layout = GrGpu::StageTexCoordVertexLayoutBit(0, 0); |
| if (!ctx->reserveAndLockGeometry(layout, 4, 0, |
| GrTCast<void**>(&vertex), NULL)) { |
| return; |
| } |
| |
| vertex[1].setRectFan(0, 0, max.fX, max.fY, 2*sizeof(GrPoint)); |
| |
| vertex[0].setIRectFan(x, y, x + w, y + h, 2*sizeof(GrPoint)); |
| |
| sk_gr_set_paint(ctx, paint, true); |
| // should look to use glDrawTexi() has we do for text... |
| ctx->drawNonIndexed(GrGpu::kTriangleFan_PrimitiveType, 0, 4); |
| ctx->releaseReservedGeometry(); |
| } |
| |
| 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; |
| } |
| |
| SkPoint max; |
| GrTexture* texture; |
| SkAutoCachedTexture act(this, bitmap, GrSamplerState::ClampNoFilter(), |
| &texture); |
| |
| max.set(SkFixedToScalar((texture->contentWidth() << 16) / |
| texture->allocWidth()), |
| SkFixedToScalar((texture->contentHeight() << 16) / |
| texture->allocHeight())); |
| gl_drawSprite(fContext, left, top, bitmap.width(), bitmap.height(), max, paint); |
| } |
| |
| void SkGpuDevice::drawDevice(const SkDraw& draw, SkDevice* dev, |
| int x, int y, const SkPaint& paint) { |
| CHECK_SHOULD_DRAW(draw); |
| |
| SkPoint max; |
| if (((SkGpuDevice*)dev)->bindDeviceAsTexture(&max)) { |
| const SkBitmap& bm = dev->accessBitmap(false); |
| int w = bm.width(); |
| int h = bm.height(); |
| gl_drawSprite(fContext, x, y, w, h, max, paint); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // must be in SkCanvas::VertexMode order |
| static const GrGpu::PrimitiveType gVertexMode2PrimitiveType[] = { |
| GrGpu::kTriangles_PrimitiveType, |
| GrGpu::kTriangleStrip_PrimitiveType, |
| GrGpu::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); |
| |
| sk_gr_set_paint(fContext, paint); |
| |
| TexCache* cache = NULL; |
| |
| bool useTexture = false; |
| |
| AutoPaintShader autoShader; |
| |
| if (texs) { |
| autoShader.init(this, paint, *draw.fMatrix); |
| |
| if (autoShader.failed()) { |
| return; |
| } |
| useTexture = autoShader.useTex(); |
| } |
| |
| bool releaseVerts = false; |
| GrVertexLayout layout = 0; |
| if (useTexture) { |
| layout |= GrDrawTarget::StageTexCoordVertexLayoutBit(0, 0); |
| } |
| if (NULL != colors) { |
| layout |= GrDrawTarget::kColor_VertexLayoutBit; |
| } |
| |
| #if SK_SCALAR_IS_GR_SCALAR |
| if (!layout) { |
| fContext->setVertexSourceToArray(vertices, layout); |
| } else |
| #endif |
| { |
| void* verts; |
| releaseVerts = true; |
| if (!fContext->reserveAndLockGeometry(layout, vertexCount, 0, |
| &verts, NULL)) { |
| return; |
| } |
| int texOffsets[GrDrawTarget::kNumStages]; |
| int colorOffset; |
| uint32_t stride = GrDrawTarget::VertexSizeAndOffsetsByStage(layout, |
| texOffsets, |
| &colorOffset); |
| for (int i = 0; i < vertexCount; ++i) { |
| GrPoint* p = (GrPoint*)((intptr_t)verts + i * stride); |
| p->set(SkScalarToGrScalar(vertices[i].fX), |
| SkScalarToGrScalar(vertices[i].fY)); |
| if (texOffsets[0] > 0) { |
| GrPoint* t = (GrPoint*)((intptr_t)p + texOffsets[0]); |
| t->set(SkScalarToGrScalar(texs[i].fX), |
| SkScalarToGrScalar(texs[i].fY)); |
| } |
| if (colorOffset > 0) { |
| uint32_t* color = (uint32_t*) ((intptr_t)p + colorOffset); |
| *color = SkGr::SkColor2GrColor(colors[i]); |
| } |
| } |
| } |
| if (indices) { |
| fContext->setIndexSourceToArray(indices); |
| fContext->drawIndexed(gVertexMode2PrimitiveType[vmode], 0, 0, |
| vertexCount, indexCount); |
| } else { |
| fContext->drawNonIndexed(gVertexMode2PrimitiveType[vmode], |
| 0, vertexCount); |
| } |
| if (cache) { |
| this->unlockCachedTexture(cache); |
| } |
| if (releaseVerts) { |
| fContext->releaseReservedGeometry(); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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(const SkPaint& paint, |
| 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); |
| sk_gr_set_paint(fContext, paint); |
| GrTextContext context(fContext, aem.extMatrix()); |
| myDraw.fProcs = this->initDrawForText(paint, &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); |
| sk_gr_set_paint(fContext, paint); |
| GrTextContext context(fContext, aem.extMatrix()); |
| myDraw.fProcs = this->initDrawForText(paint, &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); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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(); |
| ctx->setTexture(0, newTexture); |
| 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) : fContext(context) { |
| context->ref(); |
| } |
| |
| SkGpuDeviceFactory::~SkGpuDeviceFactory() { |
| fContext->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); |
| } |
| |