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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2012 Research In Motion Limited. 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.
*/
#pragma once
#include "ExtensionsGLOpenGLCommon.h"
#if USE(OPENGL_ES)
#if USE(LIBEPOXY)
#include <epoxy/gl.h>
#else
#if HAVE(OPENGL_ES_3)
#include <GLES3/gl3.h>
#endif // HAVE(OPENGL_ES_3)
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#endif
#ifndef GL_EXT_robustness
/* reuse GL_NO_ERROR */
#define GL_GUILTY_CONTEXT_RESET_EXT 0x8253
#define GL_INNOCENT_CONTEXT_RESET_EXT 0x8254
#define GL_UNKNOWN_CONTEXT_RESET_EXT 0x8255
#define GL_CONTEXT_ROBUST_ACCESS_EXT 0x90F3
#define GL_RESET_NOTIFICATION_STRATEGY_EXT 0x8256
#define GL_LOSE_CONTEXT_ON_RESET_EXT 0x8252
#define GL_NO_RESET_NOTIFICATION_EXT 0x8261
#endif
#ifndef GL_EXT_robustness
#define GL_EXT_robustness 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL GCGLenum GL_APIENTRY glGetGraphicsResetStatusEXT(void);
GL_APICALL void GL_APIENTRY glReadnPixelsEXT(GLint x, GLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLsizei bufSize, void *data);
GL_APICALL void GL_APIENTRY glGetnUniformfvEXT(GLuint program, GLint location, GCGLsizei bufSize, float *params);
GL_APICALL void GL_APIENTRY glGetnUniformivEXT(GLuint program, GLint location, GCGLsizei bufSize, GLint *params);
#endif
typedef GCGLenum (GL_APIENTRYP PFNGLGETGRAPHICSRESETSTATUSEXTPROC) (void);
typedef void (GL_APIENTRYP PFNGLREADNPIXELSEXTPROC) (GLint x, GLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLsizei bufSize, void *data);
typedef void (GL_APIENTRYP PFNGLGETNUNIFORMFVEXTPROC) (GLuint program, GLint location, GCGLsizei bufSize, float *params);
typedef void (GL_APIENTRYP PFNGLGETNUNIFORMIVEXTPROC) (GLuint program, GLint location, GCGLsizei bufSize, GLint *params);
#endif
namespace WebCore {
class GraphicsContextGLOpenGL;
class ExtensionsGLOpenGLES : public ExtensionsGLOpenGLCommon {
public:
// GL_IMG_multisampled_render_to_texture
static constexpr GCGLenum RENDERBUFFER_SAMPLES_IMG = 0x9133;
static constexpr GCGLenum FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_IMG = 0x9134;
static constexpr GCGLenum MAX_SAMPLES_IMG = 0x9135;
static constexpr GCGLenum TEXTURE_SAMPLES_IMG = 0x9136;
// This class only needs to be instantiated by GraphicsContextGLOpenGL implementations.
ExtensionsGLOpenGLES(GraphicsContextGLOpenGL*, bool useIndexedGetString);
virtual ~ExtensionsGLOpenGLES();
virtual void framebufferTexture2DMultisampleIMG(unsigned long target, unsigned long attachment, unsigned long textarget, unsigned texture, int level, unsigned long samples);
virtual void renderbufferStorageMultisampleIMG(unsigned long target, unsigned long samples, unsigned long internalformat, unsigned long width, unsigned long height);
// Extension3D methods
bool isEnabled(const String&) override;
void renderbufferStorageMultisampleANGLE(GCGLenum target, GCGLsizei samples, GCGLenum internalformat, GCGLsizei width, GCGLsizei height);
PlatformGLObject createVertexArrayOES() override;
void deleteVertexArrayOES(PlatformGLObject) override;
GCGLboolean isVertexArrayOES(PlatformGLObject) override;
void bindVertexArrayOES(PlatformGLObject) override;
void drawBuffersEXT(GCGLSpan<const GCGLenum>) override;
void drawArraysInstancedANGLE(GCGLenum mode, GCGLint first, GCGLsizei count, GCGLsizei primcount) override;
void drawElementsInstancedANGLE(GCGLenum mode, GCGLsizei count, GCGLenum type, GCGLvoidptr offset, GCGLsizei primcount) override;
void vertexAttribDivisorANGLE(GCGLuint index, GCGLuint divisor) override;
// EXT Robustness - etc
void readnPixelsEXT(int x, int y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLsizei bufSize, void *data) override;
void getnUniformfvEXT(GCGLuint program, int location, GCGLsizei bufSize, float *params) override;
void getnUniformivEXT(GCGLuint program, int location, GCGLsizei bufSize, int *params) override;
protected:
bool platformSupportsExtension(const String&) override;
String getExtensions() override;
GCGLenum m_contextResetStatus;
bool m_supportsOESvertexArrayObject;
bool m_supportsIMGMultisampledRenderToTexture;
bool m_supportsANGLEinstancedArrays;
PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEIMGPROC m_glFramebufferTexture2DMultisampleIMG;
PFNGLRENDERBUFFERSTORAGEMULTISAMPLEIMGPROC m_glRenderbufferStorageMultisampleIMG;
PFNGLBINDVERTEXARRAYOESPROC m_glBindVertexArrayOES;
PFNGLDELETEVERTEXARRAYSOESPROC m_glDeleteVertexArraysOES;
PFNGLGENVERTEXARRAYSOESPROC m_glGenVertexArraysOES;
PFNGLISVERTEXARRAYOESPROC m_glIsVertexArrayOES;
PFNGLGETGRAPHICSRESETSTATUSEXTPROC m_glGetGraphicsResetStatusEXT;
PFNGLREADNPIXELSEXTPROC m_glReadnPixelsEXT;
PFNGLGETNUNIFORMFVEXTPROC m_glGetnUniformfvEXT;
PFNGLGETNUNIFORMIVEXTPROC m_glGetnUniformivEXT;
PFNGLVERTEXATTRIBDIVISORANGLEPROC m_glVertexAttribDivisorANGLE;
PFNGLDRAWARRAYSINSTANCEDANGLEPROC m_glDrawArraysInstancedANGLE;
PFNGLDRAWELEMENTSINSTANCEDANGLEPROC m_glDrawElementsInstancedANGLE;
};
} // namespace WebCore
#endif // USE(OPENGL_ES)
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