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/*
Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
Copyright (C) 2015 Igalia S.L.
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.
*/
#ifndef TextureMapperGL_h
#define TextureMapperGL_h
#if USE(TEXTURE_MAPPER_GL)
#include "ClipStack.h"
#include "FilterOperation.h"
#include "IntSize.h"
#include "TextureMapper.h"
#include "TextureMapperContextAttributes.h"
#include "TextureMapperGLHeaders.h"
#include "TransformationMatrix.h"
#include <array>
#include <wtf/Vector.h>
namespace WebCore {
class TextureMapperGLData;
class TextureMapperShaderProgram;
class FilterOperation;
// An OpenGL-ES2 implementation of TextureMapper.
class TextureMapperGL : public TextureMapper {
public:
TextureMapperGL();
virtual ~TextureMapperGL();
enum Flag {
NoFlag = 0x00,
ShouldBlend = 0x01,
ShouldFlipTexture = 0x02,
ShouldAntialias = 0x08,
ShouldRotateTexture90 = 0x10,
ShouldRotateTexture180 = 0x20,
ShouldRotateTexture270 = 0x40,
ShouldConvertTextureBGRAToRGBA = 0x80,
ShouldConvertTextureARGBToRGBA = 0x100,
ShouldNotBlend = 0x200,
ShouldUseExternalOESTextureRect = 0x400,
ShouldPremultiply = 0x800
};
typedef int Flags;
// TextureMapper implementation
void drawBorder(const Color&, float borderWidth, const FloatRect&, const TransformationMatrix&) override;
void drawNumber(int number, const Color&, const FloatPoint&, const TransformationMatrix&) override;
void drawTexture(const BitmapTexture&, const FloatRect&, const TransformationMatrix&, float opacity, unsigned exposedEdges) override;
virtual void drawTexture(GLuint texture, Flags, const IntSize& textureSize, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, unsigned exposedEdges = AllEdges);
void drawTexturePlanarYUV(const std::array<GLuint, 3>& textures, const std::array<GLfloat, 16>& yuvToRgbMatrix, Flags, const IntSize& textureSize, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, std::optional<GLuint> alphaPlane, unsigned exposedEdges = AllEdges);
void drawTextureSemiPlanarYUV(const std::array<GLuint, 2>& textures, bool uvReversed, const std::array<GLfloat, 16>& yuvToRgbMatrix, Flags, const IntSize& textureSize, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, unsigned exposedEdges = AllEdges);
void drawTexturePackedYUV(GLuint texture, const std::array<GLfloat, 16>& yuvToRgbMatrix, Flags, const IntSize& textureSize, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity, unsigned exposedEdges = AllEdges);
void drawSolidColor(const FloatRect&, const TransformationMatrix&, const Color&, bool) override;
void clearColor(const Color&) override;
void bindSurface(BitmapTexture* surface) override;
BitmapTexture* currentSurface() override;
void beginClip(const TransformationMatrix&, const FloatRoundedRect&) override;
void beginPainting(PaintFlags = 0, BitmapTexture* = nullptr) override;
void endPainting() override;
void endClip() override;
IntRect clipBounds() override;
IntSize maxTextureSize() const override { return IntSize(2000, 2000); }
Ref<BitmapTexture> createTexture() override;
void setDepthRange(double zNear, double zFar) override;
void drawFiltered(const BitmapTexture& sourceTexture, const BitmapTexture* contentTexture, const FilterOperation&, int pass);
void drawTextureExternalOES(GLuint texture, Flags, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
private:
void drawTexturedQuadWithProgram(TextureMapperShaderProgram&, uint32_t texture, Flags, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
void drawTexturedQuadWithProgram(TextureMapperShaderProgram&, const Vector<std::pair<GLuint, GLuint> >& texturesAndSamplers, Flags, const FloatRect&, const TransformationMatrix& modelViewMatrix, float opacity);
void draw(const FloatRect&, const TransformationMatrix& modelViewMatrix, TextureMapperShaderProgram&, GLenum drawingMode, Flags);
void drawUnitRect(TextureMapperShaderProgram&, GLenum drawingMode);
void drawEdgeTriangles(TextureMapperShaderProgram&);
bool beginScissorClip(const TransformationMatrix&, const FloatRect&);
bool beginRoundedRectClip(const TransformationMatrix&, const FloatRoundedRect&);
void bindDefaultSurface();
ClipStack& clipStack();
inline TextureMapperGLData& data() { return *m_data; }
void updateProjectionMatrix();
TextureMapperContextAttributes m_contextAttributes;
TextureMapperGLData* m_data;
ClipStack m_clipStack;
};
} // namespace WebCore
#endif // USE(TEXTURE_MAPPER_GL)
#endif // TextureMapperGL_h
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