34 lines
994 B
C
34 lines
994 B
C
#pragma once
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// Simple wrapper around FBO functionality.
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// Very C-ish API because that's what I felt like, and it's cool to completely
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// hide the data from callers...
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struct FBO;
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enum FBOColorDepth {
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FBO_8888,
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FBO_565,
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FBO_4444,
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FBO_5551,
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};
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// Creates a simple FBO with a RGBA32 color buffer stored in a texture, and
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// optionally an accompanying Z/stencil buffer.
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// No mipmap support.
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// num_color_textures must be 1 for now.
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// you lose bound texture state.
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// On some hardware, you might get a 24-bit depth buffer even though you only wanted a 16-bit one.
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FBO *fbo_create(int width, int height, int num_color_textures, bool z_stencil, FBOColorDepth colorDepth = FBO_8888);
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// These functions should be self explanatory.
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void fbo_bind_as_render_target(FBO *fbo);
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// color must be 0, for now.
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void fbo_bind_color_as_texture(FBO *fbo, int color);
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void fbo_bind_for_read(FBO *fbo);
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void fbo_unbind();
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void fbo_destroy(FBO *fbo);
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void fbo_get_dimensions(FBO *fbo, int *w, int *h); |