/usr/share/openmsx/shaders/simple.vert is in openmsx-data 0.12.0-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | uniform mat4 u_mvpMatrix;
uniform vec3 texSize;
uniform vec3 texStepX; // = vec3(vec2(1.0 / texSize.x), 0.0);
uniform vec4 cnst; // = vec4(scan_a, scan_b, scan_c, alpha);
attribute vec4 a_position;
attribute vec3 a_texCoord;
varying vec2 scaled;
varying vec3 misc;
varying vec2 videoCoord;
void main()
{
float alpha = cnst.w;
gl_Position = u_mvpMatrix * a_position;
misc = vec3((vec2(0.5) - vec2(1.0, 0.0) * alpha) * texStepX.x, a_texCoord.y);
scaled = a_texCoord.xy * texSize.xy + vec2(0.0, 0.5);
#if SUPERIMPOSE
videoCoord = a_texCoord.xz;
#endif
}
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