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#version 420 core
#include "clip.vert.glsl"
layout(location = 0) in vec4 inRect;
layout(location = 1) in vec4 inStartTexRect;
layout(location = 2) in vec4 inEndTexRect;
layout(location = 3) in uint inBlendMode;
layout(location = 0) out vec2 outPos;
layout(location = 1) out vec2 outStartTexCoord;
layout(location = 2) out vec2 outEndTexCoord;
layout(location = 3) flat out uint outBlendMode;
vec2 offsets[6] = { vec2(0.0, 0.0),
vec2(1.0, 0.0),
vec2(0.0, 1.0),
vec2(0.0, 1.0),
vec2(1.0, 0.0),
vec2(1.0, 1.0) };
void main() {
vec4 rect = clip (inRect);
vec2 pos = rect.xy + rect.zw * offsets[gl_VertexIndex];
gl_Position = push.mvp * vec4 (push.scale * pos, 0.0, 1.0);
outPos = pos;
vec4 texrect = vec4((rect.xy - inRect.xy) / inRect.zw,
rect.zw / inRect.zw);
vec4 starttexrect = vec4(inStartTexRect.xy + inStartTexRect.zw * texrect.xy,
inStartTexRect.zw * texrect.zw);
vec4 endtexrect = vec4(inEndTexRect.xy + inEndTexRect.zw * texrect.xy,
inEndTexRect.zw * texrect.zw);
outStartTexCoord = starttexrect.xy + starttexrect.zw * offsets[gl_VertexIndex];
outEndTexCoord = endtexrect.xy + endtexrect.zw * offsets[gl_VertexIndex];
outBlendMode = inBlendMode;
}
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