provide GL_ARB_ES2_compatibility workaround
ES2 is in ogl core since 4.1, but not all drivers support it
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@ -255,6 +255,16 @@ void ErrorCallback( GLenum source, GLenum type, GLuint id, GLenum severity, GLsi
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#endif
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#endif
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}
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}
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// Two small Fallbacks to avoid GL_ARB_ES2_compatibility
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void GLAPIENTRY DepthRangef(GLfloat neardepth, GLfloat fardepth)
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{
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glDepthRange(neardepth, fardepth);
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}
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void GLAPIENTRY ClearDepthf(GLfloat depthval)
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{
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glClearDepth(depthval);
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}
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void InitDriverInfo()
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void InitDriverInfo()
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{
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{
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// Get Vendor
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// Get Vendor
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@ -404,6 +414,16 @@ Renderer::Renderer()
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}
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}
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if (!GLEW_ARB_texture_non_power_of_two)
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if (!GLEW_ARB_texture_non_power_of_two)
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WARN_LOG(VIDEO, "ARB_texture_non_power_of_two not supported.");
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WARN_LOG(VIDEO, "ARB_texture_non_power_of_two not supported.");
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// OpenGL 3 doesn't provide GLES like float functions for depth.
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// They are in core in OpenGL 4.1, so almost every driver should support them.
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// But for the oldest ones, we provide fallbacks to the old double functions.
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if (!GLEW_ARB_ES2_compatibility)
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{
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glDepthRangef = DepthRangef;
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glClearDepthf = ClearDepthf;
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}
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if (!bSuccess)
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if (!bSuccess)
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return; // TODO: fail
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return; // TODO: fail
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