/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef TEX_UNPACK_BLOB_H_ #define TEX_UNPACK_BLOB_H_ #include "GLContextTypes.h" #include "mozilla/RefPtr.h" #include "WebGLStrongTypes.h" #include "WebGLTypes.h" namespace mozilla { class UniqueBuffer; class WebGLContext; class WebGLTexture; namespace dom { class Element; class HTMLCanvasElement; class HTMLVideoElement; } // namespace dom namespace gfx { class DataSourceSurface; } // namespace gfx namespace layers { class Image; class ImageContainer; } // namespace layers namespace webgl { struct PackingInfo; struct DriverUnpackInfo; class TexUnpackBlob { public: const uint32_t mAlignment; const uint32_t mRowLength; const uint32_t mImageHeight; const uint32_t mSkipPixels; const uint32_t mSkipRows; const uint32_t mSkipImages; const uint32_t mWidth; const uint32_t mHeight; const uint32_t mDepth; const bool mSrcIsPremult; bool mNeedsExactUpload; protected: TexUnpackBlob(const WebGLContext* webgl, TexImageTarget target, uint32_t rowLength, uint32_t width, uint32_t height, uint32_t depth, bool isSrcPremult); public: virtual ~TexUnpackBlob() { } protected: bool ConvertIfNeeded(WebGLContext* webgl, const char* funcName, const uint32_t rowLength, const uint32_t rowCount, WebGLTexelFormat srcFormat, const uint8_t* const srcBegin, const ptrdiff_t srcStride, WebGLTexelFormat dstFormat, const ptrdiff_t dstStride, const uint8_t** const out_begin, UniqueBuffer* const out_anchoredBuffer) const; public: virtual bool HasData() const { return true; } virtual bool Validate(WebGLContext* webgl, const char* funcName, const webgl::PackingInfo& pi) = 0; // Returns false when we've generated a WebGL error. // Returns true but with a non-zero *out_error if we still need to generate a WebGL // error. virtual bool TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName, WebGLTexture* tex, TexImageTarget target, GLint level, const webgl::DriverUnpackInfo* dui, GLint xOffset, GLint yOffset, GLint zOffset, GLenum* const out_error) const = 0; }; class TexUnpackBytes final : public TexUnpackBlob { public: const bool mIsClientData; const uint8_t* const mPtr; const size_t mAvailBytes; TexUnpackBytes(const WebGLContext* webgl, TexImageTarget target, uint32_t width, uint32_t height, uint32_t depth, bool isClientData, const uint8_t* ptr, size_t availBytes); virtual bool HasData() const override { return !mIsClientData || bool(mPtr); } virtual bool Validate(WebGLContext* webgl, const char* funcName, const webgl::PackingInfo& pi) override; virtual bool TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName, WebGLTexture* tex, TexImageTarget target, GLint level, const webgl::DriverUnpackInfo* dui, GLint xOffset, GLint yOffset, GLint zOffset, GLenum* const out_error) const override; }; class TexUnpackImage final : public TexUnpackBlob { public: const RefPtr<layers::Image> mImage; TexUnpackImage(const WebGLContext* webgl, TexImageTarget target, uint32_t width, uint32_t height, uint32_t depth, layers::Image* image, bool isAlphaPremult); ~TexUnpackImage(); // Prevent needing to define layers::Image in the header. virtual bool Validate(WebGLContext* webgl, const char* funcName, const webgl::PackingInfo& pi) override; virtual bool TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName, WebGLTexture* tex, TexImageTarget target, GLint level, const webgl::DriverUnpackInfo* dui, GLint xOffset, GLint yOffset, GLint zOffset, GLenum* const out_error) const override; }; class TexUnpackSurface final : public TexUnpackBlob { public: const RefPtr<gfx::DataSourceSurface> mSurf; TexUnpackSurface(const WebGLContext* webgl, TexImageTarget target, uint32_t width, uint32_t height, uint32_t depth, gfx::DataSourceSurface* surf, bool isAlphaPremult); virtual bool Validate(WebGLContext* webgl, const char* funcName, const webgl::PackingInfo& pi) override; virtual bool TexOrSubImage(bool isSubImage, bool needsRespec, const char* funcName, WebGLTexture* tex, TexImageTarget target, GLint level, const webgl::DriverUnpackInfo* dui, GLint xOffset, GLint yOffset, GLint zOffset, GLenum* const out_error) const override; }; } // namespace webgl } // namespace mozilla #endif // TEX_UNPACK_BLOB_H_