Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(3440)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: cc/CCRenderSurfaceFilters.cpp

Issue 11122003: [cc] Rename all cc/ filenames to Chromium style (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « cc/CCRenderSurfaceFilters.h ('k') | cc/CCRenderer.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: cc/CCRenderSurfaceFilters.cpp
diff --git a/cc/CCRenderSurfaceFilters.cpp b/cc/CCRenderSurfaceFilters.cpp
deleted file mode 100644
index 40344c6b466f676e653ac28d9010420d9653ac82..0000000000000000000000000000000000000000
--- a/cc/CCRenderSurfaceFilters.cpp
+++ /dev/null
@@ -1,446 +0,0 @@
-// Copyright 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "config.h"
-
-#if USE(ACCELERATED_COMPOSITING)
-
-#include "CCRenderSurfaceFilters.h"
-
-#include "FloatSize.h"
-#include "SkBlurImageFilter.h"
-#include "SkCanvas.h"
-#include "SkColorMatrixFilter.h"
-#include "SkGpuDevice.h"
-#include "SkGrPixelRef.h"
-#include "SkMagnifierImageFilter.h"
-#include <public/WebFilterOperation.h>
-#include <public/WebFilterOperations.h>
-#include <public/WebGraphicsContext3D.h>
-#include <wtf/MathExtras.h>
-
-using namespace cc;
-
-namespace {
-
-void getBrightnessMatrix(float amount, SkScalar matrix[20])
-{
- memset(matrix, 0, 20 * sizeof(SkScalar));
- // Old implementation, a la the draft spec, a straight-up scale,
- // representing <feFunc[R|G|B] type="linear" slope="[amount]">
- // (See http://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#brightnessEquivalent)
- // matrix[0] = matrix[6] = matrix[12] = amount;
- // matrix[18] = 1;
- // New implementation, a translation in color space, representing
- // <feFunc[R|G|B] type="linear" intercept="[amount]"/>
- // (See https://www.w3.org/Bugs/Public/show_bug.cgi?id=15647)
- matrix[0] = matrix[6] = matrix[12] = matrix[18] = 1;
- matrix[4] = matrix[9] = matrix[14] = amount * 255;
-}
-
-void getContrastMatrix(float amount, SkScalar matrix[20])
-{
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = amount;
- matrix[4] = matrix[9] = matrix[14] = (-0.5f * amount + 0.5f) * 255;
- matrix[18] = 1;
-}
-
-void getSaturateMatrix(float amount, SkScalar matrix[20])
-{
- // Note, these values are computed to ensure matrixNeedsClamping is false
- // for amount in [0..1]
- matrix[0] = 0.213f + 0.787f * amount;
- matrix[1] = 0.715f - 0.715f * amount;
- matrix[2] = 1.f - (matrix[0] + matrix[1]);
- matrix[3] = matrix[4] = 0;
- matrix[5] = 0.213f - 0.213f * amount;
- matrix[6] = 0.715f + 0.285f * amount;
- matrix[7] = 1.f - (matrix[5] + matrix[6]);
- matrix[8] = matrix[9] = 0;
- matrix[10] = 0.213f - 0.213f * amount;
- matrix[11] = 0.715f - 0.715f * amount;
- matrix[12] = 1.f - (matrix[10] + matrix[11]);
- matrix[13] = matrix[14] = 0;
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0;
- matrix[18] = 1;
-}
-
-void getHueRotateMatrix(float hue, SkScalar matrix[20])
-{
- float cosHue = cosf(hue * piFloat / 180);
- float sinHue = sinf(hue * piFloat / 180);
- matrix[0] = 0.213f + cosHue * 0.787f - sinHue * 0.213f;
- matrix[1] = 0.715f - cosHue * 0.715f - sinHue * 0.715f;
- matrix[2] = 0.072f - cosHue * 0.072f + sinHue * 0.928f;
- matrix[3] = matrix[4] = 0;
- matrix[5] = 0.213f - cosHue * 0.213f + sinHue * 0.143f;
- matrix[6] = 0.715f + cosHue * 0.285f + sinHue * 0.140f;
- matrix[7] = 0.072f - cosHue * 0.072f - sinHue * 0.283f;
- matrix[8] = matrix[9] = 0;
- matrix[10] = 0.213f - cosHue * 0.213f - sinHue * 0.787f;
- matrix[11] = 0.715f - cosHue * 0.715f + sinHue * 0.715f;
- matrix[12] = 0.072f + cosHue * 0.928f + sinHue * 0.072f;
- matrix[13] = matrix[14] = 0;
- matrix[15] = matrix[16] = matrix[17] = 0;
- matrix[18] = 1;
- matrix[19] = 0;
-}
-
-void getInvertMatrix(float amount, SkScalar matrix[20])
-{
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = 1 - 2 * amount;
- matrix[4] = matrix[9] = matrix[14] = amount * 255;
- matrix[18] = 1;
-}
-
-void getOpacityMatrix(float amount, SkScalar matrix[20])
-{
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = 1;
- matrix[18] = amount;
-}
-
-void getGrayscaleMatrix(float amount, SkScalar matrix[20])
-{
- // Note, these values are computed to ensure matrixNeedsClamping is false
- // for amount in [0..1]
- matrix[0] = 0.2126f + 0.7874f * amount;
- matrix[1] = 0.7152f - 0.7152f * amount;
- matrix[2] = 1.f - (matrix[0] + matrix[1]);
- matrix[3] = matrix[4] = 0;
-
- matrix[5] = 0.2126f - 0.2126f * amount;
- matrix[6] = 0.7152f + 0.2848f * amount;
- matrix[7] = 1.f - (matrix[5] + matrix[6]);
- matrix[8] = matrix[9] = 0;
-
- matrix[10] = 0.2126f - 0.2126f * amount;
- matrix[11] = 0.7152f - 0.7152f * amount;
- matrix[12] = 1.f - (matrix[10] + matrix[11]);
- matrix[13] = matrix[14] = 0;
-
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0;
- matrix[18] = 1;
-}
-
-void getSepiaMatrix(float amount, SkScalar matrix[20])
-{
- matrix[0] = 0.393f + 0.607f * amount;
- matrix[1] = 0.769f - 0.769f * amount;
- matrix[2] = 0.189f - 0.189f * amount;
- matrix[3] = matrix[4] = 0;
-
- matrix[5] = 0.349f - 0.349f * amount;
- matrix[6] = 0.686f + 0.314f * amount;
- matrix[7] = 0.168f - 0.168f * amount;
- matrix[8] = matrix[9] = 0;
-
- matrix[10] = 0.272f - 0.272f * amount;
- matrix[11] = 0.534f - 0.534f * amount;
- matrix[12] = 0.131f + 0.869f * amount;
- matrix[13] = matrix[14] = 0;
-
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0;
- matrix[18] = 1;
-}
-
-// The 5x4 matrix is really a "compressed" version of a 5x5 matrix that'd have
-// (0 0 0 0 1) as a last row, and that would be applied to a 5-vector extended
-// from the 4-vector color with a 1.
-void multColorMatrix(SkScalar a[20], SkScalar b[20], SkScalar out[20])
-{
- for (int j = 0; j < 4; ++j) {
- for (int i = 0; i < 5; ++i) {
- out[i+j*5] = i == 4 ? a[4+j*5] : 0;
- for (int k = 0; k < 4; ++k)
- out[i+j*5] += a[k+j*5] * b[i+k*5];
- }
- }
-}
-
-// To detect if we need to apply clamping after applying a matrix, we check if
-// any output component might go outside of [0, 255] for any combination of
-// input components in [0..255].
-// Each output component is an affine transformation of the input component, so
-// the minimum and maximum values are for any combination of minimum or maximum
-// values of input components (i.e. 0 or 255).
-// E.g. if R' = x*R + y*G + z*B + w*A + t
-// Then the maximum value will be for R=255 if x>0 or R=0 if x<0, and the
-// minimum value will be for R=0 if x>0 or R=255 if x<0.
-// Same goes for all components.
-bool componentNeedsClamping(SkScalar row[5])
-{
- SkScalar maxValue = row[4] / 255;
- SkScalar minValue = row[4] / 255;
- for (int i = 0; i < 4; ++i) {
- if (row[i] > 0)
- maxValue += row[i];
- else
- minValue += row[i];
- }
- return (maxValue > 1) || (minValue < 0);
-}
-
-bool matrixNeedsClamping(SkScalar matrix[20])
-{
- return componentNeedsClamping(matrix)
- || componentNeedsClamping(matrix+5)
- || componentNeedsClamping(matrix+10)
- || componentNeedsClamping(matrix+15);
-}
-
-bool getColorMatrix(const WebKit::WebFilterOperation& op, SkScalar matrix[20])
-{
- switch (op.type()) {
- case WebKit::WebFilterOperation::FilterTypeBrightness: {
- getBrightnessMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeContrast: {
- getContrastMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeGrayscale: {
- getGrayscaleMatrix(1 - op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeSepia: {
- getSepiaMatrix(1 - op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeSaturate: {
- getSaturateMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeHueRotate: {
- getHueRotateMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeInvert: {
- getInvertMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeOpacity: {
- getOpacityMatrix(op.amount(), matrix);
- return true;
- }
- case WebKit::WebFilterOperation::FilterTypeColorMatrix: {
- memcpy(matrix, op.matrix(), sizeof(SkScalar[20]));
- return true;
- }
- default:
- return false;
- }
-}
-
-class FilterBufferState {
-public:
- FilterBufferState(GrContext* grContext, const FloatSize& size, unsigned textureId)
- : m_grContext(grContext)
- , m_currentTexture(0)
- {
- // Wrap the source texture in a Ganesh platform texture.
- GrPlatformTextureDesc platformTextureDescription;
- platformTextureDescription.fWidth = size.width();
- platformTextureDescription.fHeight = size.height();
- platformTextureDescription.fConfig = kSkia8888_GrPixelConfig;
- platformTextureDescription.fTextureHandle = textureId;
- SkAutoTUnref<GrTexture> texture(grContext->createPlatformTexture(platformTextureDescription));
- // Place the platform texture inside an SkBitmap.
- m_source.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
- m_source.setPixelRef(new SkGrPixelRef(texture.get()))->unref();
- }
-
- ~FilterBufferState() { }
-
- bool init(int filterCount)
- {
- int scratchCount = std::min(2, filterCount);
- GrTextureDesc desc;
- desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
- desc.fSampleCnt = 0;
- desc.fWidth = m_source.width();
- desc.fHeight = m_source.height();
- desc.fConfig = kSkia8888_GrPixelConfig;
- for (int i = 0; i < scratchCount; ++i) {
- GrAutoScratchTexture scratchTexture(m_grContext, desc, GrContext::kExact_ScratchTexMatch);
- m_scratchTextures[i].reset(scratchTexture.detach());
- if (!m_scratchTextures[i].get())
- return false;
- }
- return true;
- }
-
- SkCanvas* canvas()
- {
- if (!m_canvas.get())
- createCanvas();
- return m_canvas.get();
- }
-
- const SkBitmap& source() { return m_source; }
-
- void swap()
- {
- m_canvas->flush();
- m_canvas.reset(0);
- m_device.reset(0);
-
- m_source.setPixelRef(new SkGrPixelRef(m_scratchTextures[m_currentTexture].get()))->unref();
- m_currentTexture = 1 - m_currentTexture;
- }
-
-private:
- void createCanvas()
- {
- ASSERT(m_scratchTextures[m_currentTexture].get());
- m_device.reset(new SkGpuDevice(m_grContext, m_scratchTextures[m_currentTexture].get()));
- m_canvas.reset(new SkCanvas(m_device.get()));
- m_canvas->clear(0x0);
- }
-
- GrContext* m_grContext;
- SkBitmap m_source;
- SkAutoTUnref<GrTexture> m_scratchTextures[2];
- int m_currentTexture;
- SkAutoTUnref<SkGpuDevice> m_device;
- SkAutoTUnref<SkCanvas> m_canvas;
-};
-
-}
-
-namespace cc {
-
-WebKit::WebFilterOperations CCRenderSurfaceFilters::optimize(const WebKit::WebFilterOperations& filters)
-{
- WebKit::WebFilterOperations newList;
-
- SkScalar accumulatedColorMatrix[20];
- bool haveAccumulatedColorMatrix = false;
- for (unsigned i = 0; i < filters.size(); ++i) {
- const WebKit::WebFilterOperation& op = filters.at(i);
-
- // If the filter is a color matrix, we may be able to combine it with
- // following filter(s) that also are color matrices.
- SkScalar matrix[20];
- if (getColorMatrix(op, matrix)) {
- if (haveAccumulatedColorMatrix) {
- SkScalar newMatrix[20];
- multColorMatrix(matrix, accumulatedColorMatrix, newMatrix);
- memcpy(accumulatedColorMatrix, newMatrix, sizeof(accumulatedColorMatrix));
- } else {
- memcpy(accumulatedColorMatrix, matrix, sizeof(accumulatedColorMatrix));
- haveAccumulatedColorMatrix = true;
- }
-
- // We can only combine matrices if clamping of color components
- // would have no effect.
- if (!matrixNeedsClamping(accumulatedColorMatrix))
- continue;
- }
-
- if (haveAccumulatedColorMatrix)
- newList.append(WebKit::WebFilterOperation::createColorMatrixFilter(accumulatedColorMatrix));
- haveAccumulatedColorMatrix = false;
-
- switch (op.type()) {
- case WebKit::WebFilterOperation::FilterTypeBlur:
- case WebKit::WebFilterOperation::FilterTypeDropShadow:
- case WebKit::WebFilterOperation::FilterTypeZoom:
- newList.append(op);
- break;
- case WebKit::WebFilterOperation::FilterTypeBrightness:
- case WebKit::WebFilterOperation::FilterTypeContrast:
- case WebKit::WebFilterOperation::FilterTypeGrayscale:
- case WebKit::WebFilterOperation::FilterTypeSepia:
- case WebKit::WebFilterOperation::FilterTypeSaturate:
- case WebKit::WebFilterOperation::FilterTypeHueRotate:
- case WebKit::WebFilterOperation::FilterTypeInvert:
- case WebKit::WebFilterOperation::FilterTypeOpacity:
- case WebKit::WebFilterOperation::FilterTypeColorMatrix:
- break;
- }
- }
- if (haveAccumulatedColorMatrix)
- newList.append(WebKit::WebFilterOperation::createColorMatrixFilter(accumulatedColorMatrix));
- return newList;
-}
-
-SkBitmap CCRenderSurfaceFilters::apply(const WebKit::WebFilterOperations& filters, unsigned textureId, const FloatSize& size, WebKit::WebGraphicsContext3D* context3D, GrContext* grContext)
-{
- if (!context3D || !grContext)
- return SkBitmap();
-
- WebKit::WebFilterOperations optimizedFilters = optimize(filters);
- FilterBufferState state(grContext, size, textureId);
- if (!state.init(optimizedFilters.size()))
- return SkBitmap();
-
- for (unsigned i = 0; i < optimizedFilters.size(); ++i) {
- const WebKit::WebFilterOperation& op = optimizedFilters.at(i);
- SkCanvas* canvas = state.canvas();
- switch (op.type()) {
- case WebKit::WebFilterOperation::FilterTypeColorMatrix: {
- SkPaint paint;
- paint.setColorFilter(new SkColorMatrixFilter(op.matrix()))->unref();
- canvas->drawBitmap(state.source(), 0, 0, &paint);
- break;
- }
- case WebKit::WebFilterOperation::FilterTypeBlur: {
- float stdDeviation = op.amount();
- SkAutoTUnref<SkImageFilter> filter(new SkBlurImageFilter(stdDeviation, stdDeviation));
- SkPaint paint;
- paint.setImageFilter(filter.get());
- canvas->drawSprite(state.source(), 0, 0, &paint);
- break;
- }
- case WebKit::WebFilterOperation::FilterTypeDropShadow: {
- SkAutoTUnref<SkImageFilter> blurFilter(new SkBlurImageFilter(op.amount(), op.amount()));
- SkAutoTUnref<SkColorFilter> colorFilter(SkColorFilter::CreateModeFilter(op.dropShadowColor(), SkXfermode::kSrcIn_Mode));
- SkPaint paint;
- paint.setImageFilter(blurFilter.get());
- paint.setColorFilter(colorFilter.get());
- paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
- canvas->saveLayer(0, &paint);
- canvas->drawBitmap(state.source(), op.dropShadowOffset().x, -op.dropShadowOffset().y);
- canvas->restore();
- canvas->drawBitmap(state.source(), 0, 0);
- break;
- }
- case WebKit::WebFilterOperation::FilterTypeZoom: {
- SkPaint paint;
- SkAutoTUnref<SkImageFilter> zoomFilter(
- new SkMagnifierImageFilter(
- SkRect::MakeXYWH(op.zoomRect().x,
- op.zoomRect().y,
- op.zoomRect().width,
- op.zoomRect().height),
- op.amount()));
- paint.setImageFilter(zoomFilter.get());
- canvas->saveLayer(0, &paint);
- canvas->drawBitmap(state.source(), 0, 0);
- canvas->restore();
- break;
- }
- case WebKit::WebFilterOperation::FilterTypeBrightness:
- case WebKit::WebFilterOperation::FilterTypeContrast:
- case WebKit::WebFilterOperation::FilterTypeGrayscale:
- case WebKit::WebFilterOperation::FilterTypeSepia:
- case WebKit::WebFilterOperation::FilterTypeSaturate:
- case WebKit::WebFilterOperation::FilterTypeHueRotate:
- case WebKit::WebFilterOperation::FilterTypeInvert:
- case WebKit::WebFilterOperation::FilterTypeOpacity:
- ASSERT_NOT_REACHED();
- break;
- }
- state.swap();
- }
- context3D->flush();
- return state.source();
-}
-
-}
-#endif // USE(ACCELERATED_COMPOSITING)
« no previous file with comments | « cc/CCRenderSurfaceFilters.h ('k') | cc/CCRenderer.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698