John Alanbrook
95d3296dd9
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67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
#ifndef OPENGL_RENDER_H
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#define OPENGL_RENDER_H
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#include "HandmadeMath.h"
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#include <SDL3/SDL.h>
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#define RGBA_MAX 255
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extern struct rgba color_white;
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extern struct rgba color_black;
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extern struct rgba color_clear;
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extern int TOPLEFT;
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typedef struct viewstate {
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HMM_Mat4 v;
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HMM_Mat4 p;
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HMM_Mat4 vp;
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} viewstate;
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extern viewstate globalview;
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void capture_screen(int x, int y, int w, int h, const char *path);
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void gif_rec_start(int w, int h, int cpf, int bitdepth);
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void gif_rec_end(const char *path);
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struct uv_n {
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unsigned short u;
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unsigned short v;
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};
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struct st_n {
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struct uv_n s;
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struct uv_n t;
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};
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struct rgba {
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unsigned char r;
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unsigned char g;
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unsigned char b;
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unsigned char a;
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};
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typedef struct rgba rgba;
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typedef HMM_Vec4 rgbaf;
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typedef HMM_Vec4 colorf;
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static inline rgba vec2rgba(HMM_Vec4 v) {
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return (rgba){v.e[0]*255,v.e[1]*255,v.e[2]*255,v.e[3]*255};
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}
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// rectangles are always defined with [x,y] in the bottom left
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struct rect {
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float x,y,w,h;
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};
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typedef SDL_FRect rect;
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float *rgba2floats(float *r, struct rgba c);
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static inline float lerp(float f, float a, float b)
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{
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return a * (1.0-f)+(b*f);
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}
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#endif
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