Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/Extensions3D.h

Index: Source/core/platform/graphics/Extensions3D.h
diff --git a/Source/core/platform/graphics/Extensions3D.h b/Source/core/platform/graphics/Extensions3D.h
deleted file mode 100644
index f321258fcfb4d5b3e3a068e6f17ac3979f05d18f..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/Extensions3D.h
+++ /dev/null
@@ -1,333 +0,0 @@
-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef Extensions3D_h
-#define Extensions3D_h
-
-#include "platform/graphics/GraphicsTypes3D.h"
-
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-class GraphicsContext3D;
-class ImageBuffer;
-
-// The supported extensions are defined below.
-//
-// Calling any extension function not supported by the current context
-// must be a no-op; in particular, it may not have side effects. In
-// this situation, if the function has a return value, 0 is returned.
-class Extensions3D {
-public:
-    ~Extensions3D();
-
-    // Supported extensions:
-    //   GL_EXT_texture_format_BGRA8888
-    //   GL_EXT_read_format_bgra
-    //   GL_ARB_robustness
-    //   GL_ARB_texture_non_power_of_two / GL_OES_texture_npot
-    //   GL_EXT_packed_depth_stencil / GL_OES_packed_depth_stencil
-    //   GL_ANGLE_framebuffer_blit / GL_ANGLE_framebuffer_multisample
-    //   GL_OES_texture_float
-    //   GL_OES_texture_float_linear
-    //   GL_OES_texture_half_float
-    //   GL_OES_texture_half_float_linear
-    //   GL_OES_standard_derivatives
-    //   GL_OES_rgb8_rgba8
-    //   GL_OES_vertex_array_object
-    //   GL_OES_element_index_uint
-    //   GL_ANGLE_translated_shader_source
-    //   GL_ARB_texture_rectangle (only the subset required to
-    //     implement IOSurface binding; it's recommended to support
-    //     this only on Mac OS X to limit the amount of code dependent
-    //     on this extension)
-    //   GL_EXT_texture_compression_dxt1
-    //   GL_EXT_texture_compression_s3tc
-    //   GL_OES_compressed_ETC1_RGB8_texture
-    //   GL_IMG_texture_compression_pvrtc
-    //   EXT_texture_filter_anisotropic
-    //   GL_EXT_debug_marker
-    //   GL_CHROMIUM_copy_texture
-    //   GL_CHROMIUM_flipy
-    //   GL_ARB_draw_buffers / GL_EXT_draw_buffers
-    //   GL_ANGLE_instanced_arrays
-
-    //   GL_CHROMIUM_shallow_flush  : only supported if an ipc command buffer is used.
-    //   GL_CHROMIUM_resource_safe  : indicating that textures/renderbuffers are always initialized before read/write.
-    //   GL_CHROMIUM_strict_attribs : indicating a GL error is generated for out-of-bounds buffer accesses.
-    //   GL_CHROMIUM_post_sub_buffer
-    //   GL_CHROMIUM_map_sub
-    //   GL_CHROMIUM_swapbuffers_complete_callback
-    //   GL_CHROMIUM_rate_limit_offscreen_context
-    //   GL_CHROMIUM_paint_framebuffer_canvas
-    //   GL_CHROMIUM_iosurface (Mac OS X specific)
-    //   GL_CHROMIUM_command_buffer_query
-    //   GL_ANGLE_texture_usage
-    //   GL_EXT_debug_marker
-    //   GL_EXT_texture_storage
-    //   GL_EXT_occlusion_query_boolean
-
-    // Takes full name of extension; for example,
-    // "GL_EXT_texture_format_BGRA8888".
-    bool supports(const String&);
-
-    // Certain OpenGL and WebGL implementations may support enabling
-    // extensions lazily. This method may only be called with
-    // extension names for which supports returns true.
-    void ensureEnabled(const String&);
-
-    // Takes full name of extension: for example, "GL_EXT_texture_format_BGRA8888".
-    // Checks to see whether the given extension is actually enabled (see ensureEnabled).
-    // Has no other side-effects.
-    bool isEnabled(const String&);
-
-    enum ExtensionsEnumType {
-        // GL_EXT_texture_format_BGRA8888 enums
-        BGRA_EXT = 0x80E1,
-
-        // GL_ARB_robustness/GL_CHROMIUM_lose_context enums
-        GUILTY_CONTEXT_RESET_ARB = 0x8253,
-        INNOCENT_CONTEXT_RESET_ARB = 0x8254,
-        UNKNOWN_CONTEXT_RESET_ARB = 0x8255,
-
-        // GL_EXT/OES_packed_depth_stencil enums
-        DEPTH24_STENCIL8 = 0x88F0,
-
-        // GL_ANGLE_framebuffer_blit names
-        READ_FRAMEBUFFER = 0x8CA8,
-        DRAW_FRAMEBUFFER = 0x8CA9,
-        DRAW_FRAMEBUFFER_BINDING = 0x8CA6,
-        READ_FRAMEBUFFER_BINDING = 0x8CAA,
-
-        // GL_ANGLE_framebuffer_multisample names
-        RENDERBUFFER_SAMPLES = 0x8CAB,
-        FRAMEBUFFER_INCOMPLETE_MULTISAMPLE = 0x8D56,
-        MAX_SAMPLES = 0x8D57,
-
-        // GL_OES_standard_derivatives names
-        FRAGMENT_SHADER_DERIVATIVE_HINT_OES = 0x8B8B,
-
-        // GL_OES_rgb8_rgba8 names
-        RGB8_OES = 0x8051,
-        RGBA8_OES = 0x8058,
-
-        // GL_OES_vertex_array_object names
-        VERTEX_ARRAY_BINDING_OES = 0x85B5,
-
-        // GL_ANGLE_translated_shader_source
-        TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE = 0x93A0,
-
-        // GL_ARB_texture_rectangle
-        TEXTURE_RECTANGLE_ARB =  0x84F5,
-        TEXTURE_BINDING_RECTANGLE_ARB = 0x84F6,
-
-        // GL_EXT_texture_compression_dxt1
-        // GL_EXT_texture_compression_s3tc
-        COMPRESSED_RGB_S3TC_DXT1_EXT = 0x83F0,
-        COMPRESSED_RGBA_S3TC_DXT1_EXT = 0x83F1,
-        COMPRESSED_RGBA_S3TC_DXT3_EXT = 0x83F2,
-        COMPRESSED_RGBA_S3TC_DXT5_EXT = 0x83F3,
-
-        // GL_OES_compressed_ETC1_RGB8_texture
-        ETC1_RGB8_OES = 0x8D64,
-
-        // GL_IMG_texture_compression_pvrtc
-        COMPRESSED_RGB_PVRTC_4BPPV1_IMG = 0x8C00,
-        COMPRESSED_RGB_PVRTC_2BPPV1_IMG = 0x8C01,
-        COMPRESSED_RGBA_PVRTC_4BPPV1_IMG = 0x8C02,
-        COMPRESSED_RGBA_PVRTC_2BPPV1_IMG = 0x8C03,
-
-        // GL_AMD_compressed_ATC_texture
-        COMPRESSED_ATC_RGB_AMD = 0x8C92,
-        COMPRESSED_ATC_RGBA_EXPLICIT_ALPHA_AMD = 0x8C93,
-        COMPRESSED_ATC_RGBA_INTERPOLATED_ALPHA_AMD = 0x87EE,
-
-        // GL_EXT_texture_filter_anisotropic
-        TEXTURE_MAX_ANISOTROPY_EXT = 0x84FE,
-        MAX_TEXTURE_MAX_ANISOTROPY_EXT = 0x84FF,
-
-        // GL_CHROMIUM_flipy
-        UNPACK_FLIP_Y_CHROMIUM = 0x9240,
-
-        // GL_CHROMIUM_copy_texture
-        UNPACK_PREMULTIPLY_ALPHA_CHROMIUM = 0x9241,
-        UNPACK_UNPREMULTIPLY_ALPHA_CHROMIUM = 0x9242,
-
-        // GL_ARB_draw_buffers / GL_EXT_draw_buffers
-        MAX_DRAW_BUFFERS_EXT = 0x8824,
-        DRAW_BUFFER0_EXT = 0x8825,
-        DRAW_BUFFER1_EXT = 0x8826,
-        DRAW_BUFFER2_EXT = 0x8827,
-        DRAW_BUFFER3_EXT = 0x8828,
-        DRAW_BUFFER4_EXT = 0x8829,
-        DRAW_BUFFER5_EXT = 0x882A,
-        DRAW_BUFFER6_EXT = 0x882B,
-        DRAW_BUFFER7_EXT = 0x882C,
-        DRAW_BUFFER8_EXT = 0x882D,
-        DRAW_BUFFER9_EXT = 0x882E,
-        DRAW_BUFFER10_EXT = 0x882F,
-        DRAW_BUFFER11_EXT = 0x8830,
-        DRAW_BUFFER12_EXT = 0x8831,
-        DRAW_BUFFER13_EXT = 0x8832,
-        DRAW_BUFFER14_EXT = 0x8833,
-        DRAW_BUFFER15_EXT = 0x8834,
-        MAX_COLOR_ATTACHMENTS_EXT = 0x8CDF,
-        COLOR_ATTACHMENT0_EXT = 0x8CE0,
-        COLOR_ATTACHMENT1_EXT = 0x8CE1,
-        COLOR_ATTACHMENT2_EXT = 0x8CE2,
-        COLOR_ATTACHMENT3_EXT = 0x8CE3,
-        COLOR_ATTACHMENT4_EXT = 0x8CE4,
-        COLOR_ATTACHMENT5_EXT = 0x8CE5,
-        COLOR_ATTACHMENT6_EXT = 0x8CE6,
-        COLOR_ATTACHMENT7_EXT = 0x8CE7,
-        COLOR_ATTACHMENT8_EXT = 0x8CE8,
-        COLOR_ATTACHMENT9_EXT = 0x8CE9,
-        COLOR_ATTACHMENT10_EXT = 0x8CEA,
-        COLOR_ATTACHMENT11_EXT = 0x8CEB,
-        COLOR_ATTACHMENT12_EXT = 0x8CEC,
-        COLOR_ATTACHMENT13_EXT = 0x8CED,
-        COLOR_ATTACHMENT14_EXT = 0x8CEE,
-        COLOR_ATTACHMENT15_EXT = 0x8CEF,
-
-        // GL_OES_EGL_image_external
-        GL_TEXTURE_EXTERNAL_OES = 0x8D65,
-
-        // GL_CHROMIUM_map_sub (enums inherited from GL_ARB_vertex_buffer_object)
-        READ_ONLY = 0x88B8,
-        WRITE_ONLY = 0x88B9,
-
-        // GL_ANGLE_texture_usage
-        GL_TEXTURE_USAGE_ANGLE = 0x93A2,
-        GL_FRAMEBUFFER_ATTACHMENT_ANGLE = 0x93A3,
-
-        // GL_EXT_texture_storage
-        BGRA8_EXT = 0x93A1,
-
-        // GL_EXT_occlusion_query_boolean
-        ANY_SAMPLES_PASSED_EXT = 0x8C2F,
-        ANY_SAMPLES_PASSED_CONSERVATIVE_EXT = 0x8D6A,
-        CURRENT_QUERY_EXT = 0x8865,
-        QUERY_RESULT_EXT = 0x8866,
-        QUERY_RESULT_AVAILABLE_EXT = 0x8867,
-
-        // GL_CHROMIUM_command_buffer_query
-        COMMANDS_ISSUED_CHROMIUM = 0x84F2,
-
-        // GL_ANGLE_instanced_arrays
-        VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE = 0x88FE
-    };
-
-    // GL_ARB_robustness
-    // Note: This method's behavior differs from the GL_ARB_robustness
-    // specification in the following way:
-    // The implementation must not reset the error state during this call.
-    // If getGraphicsResetStatusARB returns an error, it should continue
-    // returning the same error. Restoring the GraphicsContext3D is handled
-    // externally.
-    int getGraphicsResetStatusARB();
-
-    // GL_ANGLE_framebuffer_blit
-    void blitFramebuffer(long srcX0, long srcY0, long srcX1, long srcY1, long dstX0, long dstY0, long dstX1, long dstY1, unsigned long mask, unsigned long filter);
-
-    // GL_ANGLE_framebuffer_multisample
-    void renderbufferStorageMultisample(unsigned long target, unsigned long samples, unsigned long internalformat, unsigned long width, unsigned long height);
-
-    // GL_OES_vertex_array_object
-    Platform3DObject createVertexArrayOES();
-    void deleteVertexArrayOES(Platform3DObject);
-    GC3Dboolean isVertexArrayOES(Platform3DObject);
-    void bindVertexArrayOES(Platform3DObject);
-
-    // GL_ANGLE_translated_shader_source
-    String getTranslatedShaderSourceANGLE(Platform3DObject);
-
-    // GL_CHROMIUM_copy_texture
-    // canUseCopyTextureCHROMIUM(...) is used to check if copyTextureCHROMIUM(...) can work for the specified
-    // format, type and level for the destination texture.
-    bool canUseCopyTextureCHROMIUM(GC3Denum destFormat, GC3Denum destType, GC3Dint level);
-    void copyTextureCHROMIUM(GC3Denum, Platform3DObject, Platform3DObject, GC3Dint, GC3Denum, GC3Denum);
-
-    // GL_EXT_debug_marker
-    void insertEventMarkerEXT(const String&);
-    void pushGroupMarkerEXT(const String&);
-    void popGroupMarkerEXT(void);
-
-    // GL_ARB_draw_buffers / GL_EXT_draw_buffers
-    void drawBuffersEXT(GC3Dsizei n, const GC3Denum* bufs);
-
-    // GL_CHROMIUM_map_sub
-    void* mapBufferSubDataCHROMIUM(unsigned target, int offset, int size, unsigned access);
-    void unmapBufferSubDataCHROMIUM(const void*);
-    void* mapTexSubImage2DCHROMIUM(unsigned target, int level, int xoffset, int yoffset, int width, int height, unsigned format, unsigned type, unsigned access);
-    void unmapTexSubImage2DCHROMIUM(const void*);
-
-    // GL_CHROMIUM_rate_limit_offscreen_context
-    void rateLimitOffscreenContextCHROMIUM();
-
-    // GL_CHROMIUM_paint_framebuffer_canvas
-    void paintFramebufferToCanvas(int framebuffer, int width, int height, bool premultiplyAlpha, ImageBuffer*);
-
-    // GL_CHROMIUM_iosurface
-    // To avoid needing to expose extraneous enums, assumes internal format
-    // RGBA, format BGRA, and type UNSIGNED_INT_8_8_8_8_REV.
-    void texImageIOSurface2DCHROMIUM(unsigned target, int width, int height, uint32_t ioSurfaceId, unsigned plane);
-
-    // GL_EXT_texture_storage
-    void texStorage2DEXT(unsigned target, int levels, unsigned internalformat, int width, int height);
-
-    // GL_EXT_occlusion_query
-    Platform3DObject createQueryEXT();
-    void deleteQueryEXT(Platform3DObject);
-    GC3Dboolean isQueryEXT(Platform3DObject);
-    void beginQueryEXT(GC3Denum, Platform3DObject);
-    void endQueryEXT(GC3Denum);
-    void getQueryivEXT(GC3Denum, GC3Denum, GC3Dint*);
-    void getQueryObjectuivEXT(Platform3DObject, GC3Denum, GC3Duint*);
-
-    // GL_CHROMIUM_shallow_flush
-    void shallowFlushCHROMIUM();
-
-    // GL_ANGLE_instanced_arrays
-    void drawArraysInstancedANGLE(GC3Denum mode, GC3Dint first, GC3Dsizei count, GC3Dsizei primcount);
-    void drawElementsInstancedANGLE(GC3Denum mode, GC3Dsizei count, GC3Denum type, GC3Dintptr offset, GC3Dsizei primcount);
-    void vertexAttribDivisorANGLE(GC3Duint index, GC3Duint divisor);
-
-    // GL_CHROMIUM_lose_context
-    void loseContextCHROMIUM(GC3Denum, GC3Denum);
-
-private:
-    // Instances of this class are strictly owned by the GraphicsContext3D implementation and do not
-    // need to be instantiated by any other code.
-    friend class GraphicsContext3D;
-    explicit Extensions3D(GraphicsContext3D*);
-
-    // Weak pointer back to GraphicsContext3D.
-    GraphicsContext3D* m_context;
-};
-
-} // namespace WebCore
-
-#endif // Extensions3D_h