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Unified Diff: cc/output/render_surface_filters.cc

Issue 1535833002: Delete CC. (Closed) Base URL: git@github.com:domokit/mojo.git@moz-5
Patch Set: rebase Created 4 years, 11 months ago
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Index: cc/output/render_surface_filters.cc
diff --git a/cc/output/render_surface_filters.cc b/cc/output/render_surface_filters.cc
deleted file mode 100644
index 7cccb2417d1802e431670fefb75b13684826268a..0000000000000000000000000000000000000000
--- a/cc/output/render_surface_filters.cc
+++ /dev/null
@@ -1,279 +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 "cc/output/render_surface_filters.h"
-
-#include <algorithm>
-
-#include "cc/output/filter_operation.h"
-#include "cc/output/filter_operations.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-#include "third_party/skia/include/effects/SkAlphaThresholdFilter.h"
-#include "third_party/skia/include/effects/SkBlurImageFilter.h"
-#include "third_party/skia/include/effects/SkColorFilterImageFilter.h"
-#include "third_party/skia/include/effects/SkColorMatrixFilter.h"
-#include "third_party/skia/include/effects/SkComposeImageFilter.h"
-#include "third_party/skia/include/effects/SkDropShadowImageFilter.h"
-#include "third_party/skia/include/effects/SkMagnifierImageFilter.h"
-#include "third_party/skia/include/effects/SkRectShaderImageFilter.h"
-#include "ui/gfx/geometry/size_f.h"
-
-namespace cc {
-
-namespace {
-
-void GetBrightnessMatrix(float amount, SkScalar matrix[20]) {
- // Spec implementation
- // (http://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#brightnessEquivalent)
- // <feFunc[R|G|B] type="linear" slope="[amount]">
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = amount;
- matrix[18] = 1.f;
-}
-
-void GetSaturatingBrightnessMatrix(float amount, SkScalar matrix[20]) {
- // Legacy implementation used by internal clients.
- // <feFunc[R|G|B] type="linear" intercept="[amount]"/>
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = matrix[18] = 1.f;
- matrix[4] = matrix[9] = matrix[14] = amount * 255.f;
-}
-
-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.f;
- matrix[18] = 1.f;
-}
-
-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.f;
- 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.f;
- 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.f;
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0.f;
- matrix[18] = 1.f;
-}
-
-void GetHueRotateMatrix(float hue, SkScalar matrix[20]) {
- const float kPi = 3.1415926535897932384626433832795f;
-
- float cos_hue = cosf(hue * kPi / 180.f);
- float sin_hue = sinf(hue * kPi / 180.f);
- matrix[0] = 0.213f + cos_hue * 0.787f - sin_hue * 0.213f;
- matrix[1] = 0.715f - cos_hue * 0.715f - sin_hue * 0.715f;
- matrix[2] = 0.072f - cos_hue * 0.072f + sin_hue * 0.928f;
- matrix[3] = matrix[4] = 0.f;
- matrix[5] = 0.213f - cos_hue * 0.213f + sin_hue * 0.143f;
- matrix[6] = 0.715f + cos_hue * 0.285f + sin_hue * 0.140f;
- matrix[7] = 0.072f - cos_hue * 0.072f - sin_hue * 0.283f;
- matrix[8] = matrix[9] = 0.f;
- matrix[10] = 0.213f - cos_hue * 0.213f - sin_hue * 0.787f;
- matrix[11] = 0.715f - cos_hue * 0.715f + sin_hue * 0.715f;
- matrix[12] = 0.072f + cos_hue * 0.928f + sin_hue * 0.072f;
- matrix[13] = matrix[14] = 0.f;
- matrix[15] = matrix[16] = matrix[17] = 0.f;
- matrix[18] = 1.f;
- matrix[19] = 0.f;
-}
-
-void GetInvertMatrix(float amount, SkScalar matrix[20]) {
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = 1.f - 2.f * amount;
- matrix[4] = matrix[9] = matrix[14] = amount * 255.f;
- matrix[18] = 1.f;
-}
-
-void GetOpacityMatrix(float amount, SkScalar matrix[20]) {
- memset(matrix, 0, 20 * sizeof(SkScalar));
- matrix[0] = matrix[6] = matrix[12] = 1.f;
- 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.f;
-
- 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.f;
-
- 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.f;
-
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0.f;
- matrix[18] = 1.f;
-}
-
-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.f;
-
- 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.f;
-
- 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.f;
-
- matrix[15] = matrix[16] = matrix[17] = matrix[19] = 0.f;
- matrix[18] = 1.f;
-}
-
-skia::RefPtr<SkImageFilter> CreateMatrixImageFilter(
- const SkScalar matrix[20],
- const skia::RefPtr<SkImageFilter>& input) {
- skia::RefPtr<SkColorFilter> color_filter =
- skia::AdoptRef(SkColorMatrixFilter::Create(matrix));
- return skia::AdoptRef(
- SkColorFilterImageFilter::Create(color_filter.get(), input.get()));
-}
-
-} // namespace
-
-skia::RefPtr<SkImageFilter> RenderSurfaceFilters::BuildImageFilter(
- const FilterOperations& filters,
- const gfx::SizeF& size) {
- skia::RefPtr<SkImageFilter> image_filter;
- SkScalar matrix[20];
- for (size_t i = 0; i < filters.size(); ++i) {
- const FilterOperation& op = filters.at(i);
- switch (op.type()) {
- case FilterOperation::GRAYSCALE:
- GetGrayscaleMatrix(1.f - op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::SEPIA:
- GetSepiaMatrix(1.f - op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::SATURATE:
- GetSaturateMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::HUE_ROTATE:
- GetHueRotateMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::INVERT:
- GetInvertMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::OPACITY:
- GetOpacityMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::BRIGHTNESS:
- GetBrightnessMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::CONTRAST:
- GetContrastMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::BLUR:
- image_filter = skia::AdoptRef(SkBlurImageFilter::Create(
- op.amount(), op.amount(), image_filter.get()));
- break;
- case FilterOperation::DROP_SHADOW:
- image_filter = skia::AdoptRef(SkDropShadowImageFilter::Create(
- SkIntToScalar(op.drop_shadow_offset().x()),
- SkIntToScalar(op.drop_shadow_offset().y()),
- SkIntToScalar(op.amount()),
- SkIntToScalar(op.amount()),
- op.drop_shadow_color(),
- SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode,
- image_filter.get()));
- break;
- case FilterOperation::COLOR_MATRIX:
- image_filter = CreateMatrixImageFilter(op.matrix(), image_filter);
- break;
- case FilterOperation::ZOOM: {
- skia::RefPtr<SkImageFilter> zoom_filter =
- skia::AdoptRef(SkMagnifierImageFilter::Create(
- SkRect::MakeXYWH(
- (size.width() - (size.width() / op.amount())) / 2.f,
- (size.height() - (size.height() / op.amount())) / 2.f,
- size.width() / op.amount(),
- size.height() / op.amount()),
- op.zoom_inset()));
- if (image_filter.get()) {
- // TODO(ajuma): When there's a 1-input version of
- // SkMagnifierImageFilter, use that to handle the input filter
- // instead of using an SkComposeImageFilter.
- image_filter = skia::AdoptRef(SkComposeImageFilter::Create(
- zoom_filter.get(), image_filter.get()));
- } else {
- image_filter = zoom_filter;
- }
- break;
- }
- case FilterOperation::SATURATING_BRIGHTNESS:
- GetSaturatingBrightnessMatrix(op.amount(), matrix);
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- break;
- case FilterOperation::REFERENCE: {
- if (!op.image_filter())
- break;
-
- skia::RefPtr<SkColorFilter> cf;
-
- {
- SkColorFilter* colorfilter_rawptr = NULL;
- op.image_filter()->asColorFilter(&colorfilter_rawptr);
- cf = skia::AdoptRef(colorfilter_rawptr);
- }
-
- if (cf && cf->asColorMatrix(matrix) &&
- !op.image_filter()->getInput(0)) {
- image_filter = CreateMatrixImageFilter(matrix, image_filter);
- } else if (image_filter) {
- image_filter = skia::AdoptRef(SkComposeImageFilter::Create(
- op.image_filter().get(), image_filter.get()));
- } else {
- image_filter = op.image_filter();
- }
- break;
- }
- case FilterOperation::ALPHA_THRESHOLD: {
- skia::RefPtr<SkImageFilter> alpha_filter = skia::AdoptRef(
- SkAlphaThresholdFilter::Create(
- op.region(), op.amount(), op.outer_threshold()));
- if (image_filter.get()) {
- image_filter = skia::AdoptRef(SkComposeImageFilter::Create(
- alpha_filter.get(), image_filter.get()));
- } else {
- image_filter = alpha_filter;
- }
- break;
- }
- }
- }
- return image_filter;
-}
-
-} // namespace cc
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