612fb40f3a
The fixed colormap is a per-scene global setting that normally does not need to change ever during rendering of a scene so it's easily shoved aside into a static uniform buffer. Having to change this buffer for inconsequential stuff should be avoided, especially when there's other uniforms that are just as good to hold these values.
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#ifndef R_RENDER
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#define R_RENDER
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#include "basictypes.h"
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enum GLCompat
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{
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CMPT_GL2,
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CMPT_GL2_SHADER,
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CMPT_GL3,
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CMPT_GL4
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};
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enum TexMode
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{
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TM_SWCANVAS = -1, // special case for the legacy renderer, do not use for anything but the SW renderer's canvas.
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TM_MODULATE = 0, // (r, g, b, a)
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TM_MASK, // (1, 1, 1, a)
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TM_OPAQUE, // (r, g, b, 1)
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TM_INVERSE, // (1-r, 1-g, 1-b, a)
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TM_REDTOALPHA, // (1, 1, 1, r)
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TM_CLAMPY, // (r, g, b, (t >= 0.0 && t <= 1.0)? a:0)
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TM_INVERTOPAQUE, // (1-r, 1-g, 1-b, 1)
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TM_FOGLAYER, // (renders a fog layer in the shape of the active texture)
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};
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enum ELightMethod
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{
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LM_LEGACY = 0, // placeholder for legacy mode (textured lights), should not be checked anywhere in the code!
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LM_DEFERRED = 1, // calculate lights up front in a separate pass
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LM_DIRECT = 2, // calculate lights on the fly along with the render data
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};
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enum EBufferMethod
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{
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BM_LEGACY = 0, // placeholder for legacy mode (client arrays), should not be checked anywhere in the code!
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BM_DEFERRED = 1, // use a temporarily mapped buffer, for GL 3.x core profile
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BM_PERSISTENT = 2 // use a persistently mapped buffer
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};
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struct RenderContext
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{
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unsigned int flags;
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unsigned int maxuniforms;
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unsigned int maxuniformblock;
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unsigned int uniformblockalignment;
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int lightmethod;
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int buffermethod;
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float glslversion;
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int max_texturesize;
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char * vendorstring;
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bool legacyMode;
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bool es;
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int MaxLights() const
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{
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return maxuniforms>=2048? 128:64;
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}
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};
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extern RenderContext gl;
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#endif
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