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/*
Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#pragma once
#if USE(TEXTURE_MAPPER)
#include "BitmapTexturePool.h"
#include "ClipStack.h"
#include "Color.h"
#include "FilterOperation.h"
#include "IntRect.h"
#include "IntSize.h"
#include "TextureMapperGLHeaders.h"
#include "TextureMapperGPUBuffer.h"
#include "TransformationMatrix.h"
#include <array>
#include <wtf/OptionSet.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
// TextureMapper is a mechanism that enables hardware acceleration of CSS animations (accelerated compositing) without
// a need for a platform specific scene-graph library like CoreAnimation.
typedef void *EGLImage;
namespace WebCore {
class ClipPath;
class TextureMapperGLData;
class TextureMapperGPUBuffer;
class TextureMapperShaderProgram;
class FilterOperations;
class FloatRoundedRect;
enum class TextureMapperFlags : uint16_t;
class TextureMapper {
WTF_MAKE_TZONE_ALLOCATED(TextureMapper);
public:
enum class WrapMode : uint8_t {
Stretch,
Repeat
};
WEBCORE_EXPORT static std::unique_ptr<TextureMapper> create();
TextureMapper();
WEBCORE_EXPORT ~TextureMapper();
enum class AllEdgesExposed : bool { No, Yes };
enum class FlipY : bool { No, Yes };
WEBCORE_EXPORT void drawBorder(const Color&, float borderWidth, const FloatRect&, const TransformationMatrix&);
void drawNumber(int number, const Color&, const FloatPoint&, const TransformationMatrix&);
WEBCORE_EXPORT void drawTexture(const BitmapTexture&, const FloatRect& target, const TransformationMatrix& modelViewMatrix = TransformationMatrix(), float opacity = 1.0f, AllEdgesExposed = AllEdgesExposed::Yes);
void drawTexture(GLuint texture, OptionSet<TextureMapperFlags>, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, AllEdgesExposed = AllEdgesExposed::Yes);
void drawTexturePlanarYUV(const std::array<GLuint, 3>& textures, const std::array<GLfloat, 16>& yuvToRgbMatrix, OptionSet<TextureMapperFlags>, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, std::optional<GLuint> alphaPlane, AllEdgesExposed = AllEdgesExposed::Yes);
void drawTextureSemiPlanarYUV(const std::array<GLuint, 2>& textures, bool uvReversed, const std::array<GLfloat, 16>& yuvToRgbMatrix, OptionSet<TextureMapperFlags>, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, AllEdgesExposed = AllEdgesExposed::Yes);
void drawTexturePackedYUV(GLuint texture, const std::array<GLfloat, 16>& yuvToRgbMatrix, OptionSet<TextureMapperFlags>, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, AllEdgesExposed = AllEdgesExposed::Yes);
void drawTextureExternalOES(GLuint texture, OptionSet<TextureMapperFlags>, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
void drawSolidColor(const FloatRect&, const TransformationMatrix&, const Color&, bool);
void clearColor(const Color&);
// makes a surface the target for the following drawTexture calls.
void bindSurface(BitmapTexture* surface);
BitmapTexture* currentSurface();
void beginClip(const TransformationMatrix&, const FloatRoundedRect&);
void beginClip(const TransformationMatrix&, const ClipPath&);
WEBCORE_EXPORT void beginPainting(FlipY = FlipY::No, BitmapTexture* = nullptr);
WEBCORE_EXPORT void endPainting();
void endClip();
IntRect clipBounds();
IntSize maxTextureSize() const;
void setDepthRange(double zNear, double zFar);
std::pair<double, double> depthRange() const;
void setMaskMode(bool m) { m_isMaskMode = m; }
void setWrapMode(WrapMode m) { m_wrapMode = m; }
void setPatternTransform(const TransformationMatrix& p) { m_patternTransform = p; }
RefPtr<BitmapTexture> applyFilters(RefPtr<BitmapTexture>&, const FilterOperations&, bool defersLastPass);
WEBCORE_EXPORT Ref<BitmapTexture> acquireTextureFromPool(const IntSize&, OptionSet<BitmapTexture::Flags>);
#if USE(GBM)
WEBCORE_EXPORT Ref<BitmapTexture> createTextureForImage(EGLImage, OptionSet<BitmapTexture::Flags>);
#endif
#if USE(GRAPHICS_LAYER_WC)
WEBCORE_EXPORT void releaseUnusedTexturesNow();
#endif
Ref<TextureMapperGPUBuffer> acquireBufferFromPool(size_t, TextureMapperGPUBuffer::Type);
private:
bool isInMaskMode() const { return m_isMaskMode; }
const TransformationMatrix& patternTransform() const { return m_patternTransform; }
enum class Direction { X, Y };
RefPtr<BitmapTexture> applyFilter(RefPtr<BitmapTexture>&, const Ref<const FilterOperation>&, bool defersLastPass);
RefPtr<BitmapTexture> applyBlurFilter(RefPtr<BitmapTexture>&, const BlurFilterOperation&);
RefPtr<BitmapTexture> applyDropShadowFilter(RefPtr<BitmapTexture>&, const DropShadowFilterOperation&);
RefPtr<BitmapTexture> applySinglePassFilter(RefPtr<BitmapTexture>&, const Ref<const FilterOperation>&, bool shouldDefer);
void drawTextureCopy(const BitmapTexture& sourceTexture, const FloatRect& sourceRect, const FloatRect& targetRect);
void drawBlurred(const BitmapTexture& sourceTexture, const FloatRect&, float radius, Direction, bool alphaBlur = false);
void drawTexturedQuadWithProgram(TextureMapperShaderProgram&, uint32_t texture, OptionSet<TextureMapperFlags>, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
void drawTexturedQuadWithProgram(TextureMapperShaderProgram&, const Vector<std::pair<GLuint, GLuint> >& texturesAndSamplers, OptionSet<TextureMapperFlags>, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
void draw(const FloatRect&, const TransformationMatrix& modelViewMatrix, TextureMapperShaderProgram&, GLenum drawingMode, OptionSet<TextureMapperFlags>);
void drawUnitRect(TextureMapperShaderProgram&, GLenum drawingMode);
void drawEdgeTriangles(TextureMapperShaderProgram&);
bool beginScissorClip(const TransformationMatrix&, const FloatRect&);
bool beginRoundedRectClip(const TransformationMatrix&, const FloatRoundedRect&);
void bindDefaultSurface();
ClipStack& clipStack();
TextureMapperGLData& data() const { return *m_data; }
void updateProjectionMatrix();
BitmapTexturePool m_texturePool;
bool m_isMaskMode { false };
TransformationMatrix m_patternTransform;
WrapMode m_wrapMode { WrapMode::Stretch };
TextureMapperGLData* m_data;
ClipStack m_clipStack;
};
} // namespace WebCore
#endif // USE(TEXTURE_MAPPER)
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