Emilio Cobos Álvarez
02d691fdef
Autogenerated with:
cp dom/.clang-format gfx/ && mach format gfx/**.{cpp,h,mm}
Manual changes:
* OSVRSession headers are not system headers and they are not
standalone / rely on stdint, so tweaked to preserve previous
ordering.
* Missing include in GLDefs.h
* Missing include in gfxOTSUtils.
* Need to keep the windows header order in DCLayerTree.
* missing hb_font include in MockScaledFont.h
Differential Revision: https://phabricator.services.mozilla.com/D311695
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GLREADTEXIMAGEHELPER_H_
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#define GLREADTEXIMAGEHELPER_H_
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#include "GLContextTypes.h"
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/gfx/MatrixFwd.h"
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#include "mozilla/gfx/Types.h"
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#include "nsSize.h"
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namespace mozilla {
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namespace gfx {
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class DataSourceSurface;
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} // namespace gfx
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namespace gl {
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// Returns true if the `dest{Format,Type}` are the same as the
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// `read{Format,Type}`.
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bool GetActualReadFormats(GLContext* gl, GLenum destFormat, GLenum destType,
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GLenum* out_readFormat, GLenum* out_readType);
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void ReadPixelsIntoBuffer(GLContext* gl, uint8_t* aData, int32_t aStride,
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const gfx::IntSize& aSize,
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gfx::SurfaceFormat aFormat);
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void ReadPixelsIntoDataSurface(GLContext* aGL,
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gfx::DataSourceSurface* aSurface);
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already_AddRefed<gfx::DataSourceSurface> ReadBackSurface(
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GLContext* gl, GLuint aTexture, bool aYInvert, gfx::SurfaceFormat aFormat);
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already_AddRefed<gfx::DataSourceSurface> YInvertImageSurface(
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gfx::DataSourceSurface* aSurf, uint32_t aStride);
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void SwapRAndBComponents(gfx::DataSourceSurface* surf);
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class GLReadTexImageHelper final {
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// The GLContext is the sole owner of the GLBlitHelper.
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GLContext* mGL;
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GLuint mPrograms[4];
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GLuint TextureImageProgramFor(GLenum aTextureTarget, int aShader);
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bool DidGLErrorOccur(const char* str);
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public:
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explicit GLReadTexImageHelper(GLContext* gl);
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~GLReadTexImageHelper();
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/**
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* Read the image data contained in aTexture, and return it as an
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* ImageSurface. If GL_RGBA is given as the format, a
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* SurfaceFormat::A8R8G8B8_UINT32 surface is returned. Not implemented yet: If
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* GL_RGB is given as the format, a SurfaceFormat::X8R8G8B8_UINT32 surface is
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* returned. If GL_LUMINANCE is given as the format, a SurfaceFormat::A8
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* surface is returned.
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*
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* THIS IS EXPENSIVE. It is ridiculously expensive. Only do this
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* if you absolutely positively must, and never in any performance
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* critical path.
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*
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* NOTE: aShaderProgram is really mozilla::layers::ShaderProgramType. It is
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* passed as int to eliminate including LayerManagerOGLProgram.h here.
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*/
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already_AddRefed<gfx::DataSourceSurface> ReadTexImage(
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GLuint aTextureId, GLenum aTextureTarget, const gfx::IntSize& aSize,
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const gfx::Matrix4x4& aTexMatrix,
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/* ShaderProgramType */ int aShaderProgram, bool aYInvert = false);
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bool ReadTexImage(gfx::DataSourceSurface* aDest, GLuint aTextureId,
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GLenum aTextureTarget, const gfx::IntSize& aSize,
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const gfx::Matrix4x4& aTexMatrix, int aShaderProgram,
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bool aYInvert = false);
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};
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} // namespace gl
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} // namespace mozilla
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#endif
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