1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef Extensions3DChromium_h 27 #define Extensions3DChromium_h 28 29 #include "Extensions3D.h" 30 31 namespace WebCore { 32 33 class GraphicsContext3DInternal; 34 35 class Extensions3DChromium : public Extensions3D { 36 public: 37 virtual ~Extensions3DChromium(); 38 39 // Supported extensions: 40 // GL_CHROMIUM_resource_safe : indicating that textures/renderbuffers are always initialized before read/write. 41 // GL_CHROMIUM_strict_attribs : indicating a GL error is generated for out-of-bounds buffer accesses. 42 43 // Extensions3D methods. 44 virtual bool supports(const String&); 45 virtual void ensureEnabled(const String&); 46 virtual bool isEnabled(const String&); 47 virtual int getGraphicsResetStatusARB(); 48 virtual void blitFramebuffer(long srcX0, long srcY0, long srcX1, long srcY1, long dstX0, long dstY0, long dstX1, long dstY1, unsigned long mask, unsigned long filter); 49 virtual void renderbufferStorageMultisample(unsigned long target, unsigned long samples, unsigned long internalformat, unsigned long width, unsigned long height); 50 virtual Platform3DObject createVertexArrayOES(); 51 virtual void deleteVertexArrayOES(Platform3DObject); 52 virtual GC3Dboolean isVertexArrayOES(Platform3DObject); 53 virtual void bindVertexArrayOES(Platform3DObject); 54 55 enum { 56 // GL_CHROMIUM_map_sub (enums inherited from GL_ARB_vertex_buffer_object) 57 READ_ONLY = 0x88B8, 58 WRITE_ONLY = 0x88B9 59 }; 60 61 // GL_CHROMIUM_map_sub 62 void* mapBufferSubDataCHROMIUM(unsigned target, int offset, int size, unsigned access); 63 void unmapBufferSubDataCHROMIUM(const void*); 64 void* mapTexSubImage2DCHROMIUM(unsigned target, int level, int xoffset, int yoffset, int width, int height, unsigned format, unsigned type, unsigned access); 65 void unmapTexSubImage2DCHROMIUM(const void*); 66 67 // GL_CHROMIUM_copy_texture_to_parent_texture 68 void copyTextureToParentTextureCHROMIUM(unsigned texture, unsigned parentTexture); 69 70 // Latch support 71 void getParentToChildLatchCHROMIUM(GC3Duint* latchId); 72 void getChildToParentLatchCHROMIUM(GC3Duint* latchId); 73 void waitLatchCHROMIUM(GC3Duint latchId); 74 void setLatchCHROMIUM(GC3Duint latchId); 75 76 private: 77 // Instances of this class are strictly owned by the GraphicsContext3D implementation and do not 78 // need to be instantiated by any other code. 79 friend class GraphicsContext3DInternal; 80 explicit Extensions3DChromium(GraphicsContext3DInternal*); 81 82 // Weak pointer back to GraphicsContext3DInternal 83 GraphicsContext3DInternal* m_internal; 84 }; 85 86 } // namespace WebCore 87 88 #endif // Extensions3DChromium_h 89