| /* |
| * 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 "core/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 |
