61 lines
997 B
C
61 lines
997 B
C
#ifndef RENDER_H
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#define RENDER_H
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#include "sokol/sokol_gfx.h"
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#include "HandmadeMath.h"
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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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struct boundingbox {
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float t;
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float b;
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float r;
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float l;
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};
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static struct boundingbox cwh2bb(HMM_Vec2 c, HMM_Vec2 wh) {
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struct boundingbox bb = {
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.t = c.Y + wh.Y/2,
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.b = c.Y - wh.Y/2,
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.r = c.X + wh.X/2,
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.l = c.X - wh.X/2
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};
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return bb;
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}
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static float *rgba2floats(float *r, struct rgba c)
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{
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r[0] = c.r / 255.0;
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r[1] = c.g / 255.0;
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r[2] = c.b / 255.0;
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r[3] = c.a / 255.0;
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return r;
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}
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static sg_blend_state blend_trans = {
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.enabled = true,
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.src_factor_rgb = SG_BLENDFACTOR_SRC_ALPHA,
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.dst_factor_rgb = SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
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.src_factor_alpha = SG_BLENDFACTOR_SRC_ALPHA,
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.src_factor_alpha = SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA
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};
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#endif
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