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35 lines
766 B
GLSL
35 lines
766 B
GLSL
#ifndef _COMMON_VERT_
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#define _COMMON_VERT_
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#include "clip.vert.glsl"
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#include "constants.glsl"
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#include "rect.glsl"
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vec2 offsets[6] = { vec2(0.0, 0.0),
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vec2(1.0, 0.0),
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vec2(0.0, 1.0),
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vec2(0.0, 1.0),
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vec2(1.0, 0.0),
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vec2(1.0, 1.0) };
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vec2
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set_position_from_rect (Rect rect)
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{
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Rect r = rect_round_larger (clip_rect (rect));
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vec2 pos = mix (r.bounds.xy, r.bounds.zw, offsets[gl_VertexIndex]);
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gl_Position = push.mvp * vec4 (pos, 0.0, 1.0);
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return pos;
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}
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vec2
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scale_tex_coord (vec2 in_pos,
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Rect in_rect,
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vec4 tex_rect)
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{
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return tex_rect.xy + (in_pos - in_rect.bounds.xy) / rect_size (in_rect) * tex_rect.zw;
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}
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#endif
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