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Add OpenGL support.

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This commit is contained in:
LuisAntonRebollo 2014-11-08 17:41:17 +01:00
parent c354f59b72
commit dd08fd2e7d
55 changed files with 2957 additions and 802 deletions
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133
Engine/source/gfx/gl/gfxGLStateCache.h Normal file
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#ifndef GFX_GL_STATE_CACHE
#define GFX_GL_STATE_CACHE
/// GFXGLStateCache store OpenGL state to avoid performance penalities of glGet* calls
/// GL_TEXTURE_1D/2D/3D, GL_FRAMEBUFFER, GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER
class GFXGLStateCache
{
public:
GFXGLStateCache()
{
mActiveTexture = 0;
mBindedVBO = 0;
mBindedIBO = 0;
mBindedFBO_W = 0;
mBindedFBO_R = 0;
mVertexAttribActive = 0;
}
class TextureUnit
{
public:
TextureUnit() : mTexture1D(0), mTexture2D(0), mTexture3D(0), mTextureCube(0)
{
}
GLuint mTexture1D, mTexture2D, mTexture3D, mTextureCube;
};
/// after glBindTexture
void setCacheBindedTex(U32 texUnit, GLenum biding, GLuint handle)
{
mActiveTexture = texUnit;
switch (biding)
{
case GL_TEXTURE_2D:
mTextureUnits[mActiveTexture].mTexture2D = handle;
break;
case GL_TEXTURE_3D:
mTextureUnits[mActiveTexture].mTexture3D = handle;
break;
case GL_TEXTURE_1D:
mTextureUnits[mActiveTexture].mTexture1D = handle;
break;
case GL_TEXTURE_CUBE_MAP:
mTextureUnits[mActiveTexture].mTextureCube = handle;
break;
default:
AssertFatal(0, avar("GFXGLStateCache::setCacheBindedTex - binding (%x) not supported.", biding) );
return;
}
}
/// after opengl object binded
void setCacheBinded(GLenum biding, GLuint handle)
{
switch (biding)
{
case GL_TEXTURE_2D:
mTextureUnits[mActiveTexture].mTexture2D = handle;
break;
case GL_TEXTURE_3D:
mTextureUnits[mActiveTexture].mTexture3D = handle;
break;
case GL_TEXTURE_1D:
mTextureUnits[mActiveTexture].mTexture1D = handle;
break;
case GL_TEXTURE_CUBE_MAP:
mTextureUnits[mActiveTexture].mTextureCube = handle;
break;
case GL_FRAMEBUFFER:
mBindedFBO_W = mBindedFBO_R = handle;
break;
case GL_DRAW_FRAMEBUFFER:
mBindedFBO_W = handle;
break;
case GL_READ_FRAMEBUFFER:
mBindedFBO_R = handle;
break;
case GL_ARRAY_BUFFER:
mBindedVBO = handle;
break;
case GL_ELEMENT_ARRAY_BUFFER:
mBindedIBO = handle;
break;
default:
AssertFatal(0, avar("GFXGLStateCache::setCacheBinded - binding (%x) not supported.", biding) );
break;
}
}
GLuint getCacheBinded(GLenum biding) const
{
switch (biding)
{
case GL_TEXTURE_2D:
return mTextureUnits[mActiveTexture].mTexture2D;
case GL_TEXTURE_3D:
return mTextureUnits[mActiveTexture].mTexture3D;
case GL_TEXTURE_1D:
return mTextureUnits[mActiveTexture].mTexture1D;
case GL_TEXTURE_CUBE_MAP:
return mTextureUnits[mActiveTexture].mTextureCube;
case GL_DRAW_FRAMEBUFFER:
return mBindedFBO_W;
case GL_READ_FRAMEBUFFER:
return mBindedFBO_R;
case GL_ARRAY_BUFFER:
return mBindedVBO;
case GL_ELEMENT_ARRAY_BUFFER:
return mBindedIBO;
default:
AssertFatal(0, avar("GFXGLStateCache::getCacheBinded - binding (%x) not supported.", biding) );
return 0;
}
}
/// after glActiveTexture
void setCacheActiveTexture(U32 unit) { mActiveTexture = unit; }
U32 getCacheActiveTexture() const { return mActiveTexture; }
/// for cache glEnableVertexAttribArray / glDisableVertexAttribArray
void setCacheVertexAttribActive(U32 activeMask) { mVertexAttribActive = activeMask; }
U32 getCacheVertexAttribActive() const { return mVertexAttribActive; }
protected:
GLuint mActiveTexture, mBindedVBO, mBindedIBO, mBindedFBO_W, mBindedFBO_R;
TextureUnit mTextureUnits[TEXTURE_STAGE_COUNT];
U32 mVertexAttribActive;
};
#endif