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// Copyright (C) 2008 Christian Stehno
// Heavily based on the OpenGL driver implemented by Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in Irrlicht.h
#ifndef __C_OGLES_EXTENSION_HANDLER_H_INCLUDED__
#define __C_OGLES_EXTENSION_HANDLER_H_INCLUDED__
#include "IrrCompileConfig.h"
#ifdef _IRR_COMPILE_WITH_OGLES1_
#include "EDriverFeatures.h"
#include "irrTypes.h"
#include "os.h"
#include "COGLESCommon.h"
#include "COGLESCoreExtensionHandler.h"
namespace irr
{
namespace video
{
class COGLES1ExtensionHandler : public COGLESCoreExtensionHandler
{
public:
COGLES1ExtensionHandler();
void initExtensions();
bool queryFeature(video::E_VIDEO_DRIVER_FEATURE feature) const
{
switch (feature)
{
case EVDF_RENDER_TO_TARGET:
case EVDF_HARDWARE_TL:
case EVDF_MULTITEXTURE:
case EVDF_BILINEAR_FILTER:
case EVDF_MIP_MAP:
case EVDF_TEXTURE_NSQUARE:
case EVDF_STENCIL_BUFFER:
case EVDF_ALPHA_TO_COVERAGE:
case EVDF_COLOR_MASK:
case EVDF_POLYGON_OFFSET:
case EVDF_TEXTURE_MATRIX:
return true;
case EVDF_TEXTURE_NPOT:
return FeatureAvailable[IRR_GL_APPLE_texture_2D_limited_npot] || FeatureAvailable[IRR_GL_OES_texture_npot];
case EVDF_MIP_MAP_AUTO_UPDATE:
return Version>100;
case EVDF_BLEND_OPERATIONS:
return FeatureAvailable[IRR_GL_OES_blend_subtract];
case EVDF_BLEND_SEPARATE:
return FeatureAvailable[IRR_GL_OES_blend_func_separate];
case EVDF_FRAMEBUFFER_OBJECT:
return FeatureAvailable[IRR_GL_OES_framebuffer_object];
case EVDF_VERTEX_BUFFER_OBJECT:
return Version>100;
case EVDF_TEXTURE_COMPRESSED_DXT:
return false; // NV Tegra need improvements here
case EVDF_TEXTURE_COMPRESSED_PVRTC:
return FeatureAvailable[IRR_GL_IMG_texture_compression_pvrtc];
case EVDF_TEXTURE_COMPRESSED_ETC1:
return FeatureAvailable[IRR_GL_OES_compressed_ETC1_RGB8_texture];
case EVDF_TEXTURE_CUBEMAP:
return FeatureAvailable[IRR_GL_OES_texture_cube_map];
default:
return true;
};
}
inline void irrGlActiveTexture(GLenum texture)
{
glActiveTexture(texture);
}
inline void irrGlCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border,
GLsizei imageSize, const void* data)
{
glCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data);
}
inline void irrGlCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLsizei imageSize, const void* data)
{
glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data);
}
inline void irrGlUseProgram(GLuint prog)
{
}
inline void irrGlBindFramebuffer(GLenum target, GLuint framebuffer)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlBindFramebufferOES)
pGlBindFramebufferOES(target, framebuffer);
#elif defined(GL_OES_framebuffer_object)
glBindFramebufferOES(target, framebuffer);
#endif
}
inline void irrGlDeleteFramebuffers(GLsizei n, const GLuint *framebuffers)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlDeleteFramebuffersOES)
pGlDeleteFramebuffersOES(n, framebuffers);
#elif defined(GL_OES_framebuffer_object)
glDeleteFramebuffersOES(n, framebuffers);
#endif
}
inline void irrGlGenFramebuffers(GLsizei n, GLuint *framebuffers)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlGenFramebuffersOES)
pGlGenFramebuffersOES(n, framebuffers);
#elif defined(GL_OES_framebuffer_object)
glGenFramebuffersOES(n, framebuffers);
#endif
}
inline GLenum irrGlCheckFramebufferStatus(GLenum target)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlCheckFramebufferStatusOES)
return pGlCheckFramebufferStatusOES(target);
else
return 0;
#elif defined(GL_OES_framebuffer_object)
return glCheckFramebufferStatusOES(target);
#else
return 0;
#endif
}
inline void irrGlFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlFramebufferTexture2DOES)
pGlFramebufferTexture2DOES(target, attachment, textarget, texture, level);
#elif defined(GL_OES_framebuffer_object)
glFramebufferTexture2DOES(target, attachment, textarget, texture, level);
#endif
}
inline void irrGlGenerateMipmap(GLenum target)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlGenerateMipmapOES)
pGlGenerateMipmapOES(target);
#elif defined(GL_OES_framebuffer_object)
glGenerateMipmapOES(target);
#endif
}
inline void irrGlActiveStencilFace(GLenum face)
{
}
inline void irrGlDrawBuffer(GLenum mode)
{
}
inline void irrGlDrawBuffers(GLsizei n, const GLenum *bufs)
{
}
inline void irrGlBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlBlendFuncSeparateOES)
pGlBlendFuncSeparateOES(srcRGB, dstRGB, srcAlpha, dstAlpha);
#elif defined(GL_OES_blend_func_separate)
glBlendFuncSeparateOES(srcRGB, dstRGB, srcAlpha, dstAlpha);
#endif
}
inline void irrGlBlendEquation(GLenum mode)
{
#ifdef _IRR_OGLES1_USE_EXTPOINTER_
if (pGlBlendEquationOES)
pGlBlendEquationOES(mode);
#elif defined(GL_OES_blend_subtract)
glBlendEquationOES(mode);
#endif
}
inline void irrGlEnableIndexed(GLenum target, GLuint index)
{
}
inline void irrGlDisableIndexed(GLenum target, GLuint index)
{
}
inline void irrGlColorMaskIndexed(GLuint buf, GLboolean r, GLboolean g, GLboolean b, GLboolean a)
{
}
inline void irrGlBlendFuncIndexed(GLuint buf, GLenum src, GLenum dst)
{
}
inline void irrGlBlendFuncSeparateIndexed(GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
{
}
inline void irrGlBlendEquationIndexed(GLuint buf, GLenum mode)
{
}
inline void irrGlBlendEquationSeparateIndexed(GLuint buf, GLenum modeRGB, GLenum modeAlpha)
{
}
protected:
u8 MaxUserClipPlanes;
u8 MaxLights;
#if defined(_IRR_OGLES1_USE_EXTPOINTER_)
PFNGLBLENDEQUATIONOESPROC pGlBlendEquationOES;
PFNGLBLENDFUNCSEPARATEOESPROC pGlBlendFuncSeparateOES;
PFNGLBINDFRAMEBUFFEROESPROC pGlBindFramebufferOES;
PFNGLDELETEFRAMEBUFFERSOESPROC pGlDeleteFramebuffersOES;
PFNGLGENFRAMEBUFFERSOESPROC pGlGenFramebuffersOES;
PFNGLCHECKFRAMEBUFFERSTATUSOESPROC pGlCheckFramebufferStatusOES;
PFNGLFRAMEBUFFERTEXTURE2DOESPROC pGlFramebufferTexture2DOES;
PFNGLGENERATEMIPMAPOESPROC pGlGenerateMipmapOES;
#endif
};
}
}
#endif
#endif
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