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Support GLES on desktop

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wheremyfoodat 2024-12-28 19:52:03 +02:00
parent 80ccede765
commit cb8b13e129
15 changed files with 125 additions and 59 deletions
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10
src/host_shaders/opengl_es_display.frag Normal file
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#version 310 es
precision mediump float;
in vec2 UV;
out vec4 FragColor;
uniform sampler2D u_texture;
void main() {
FragColor = texture(u_texture, UV);
}

25
src/host_shaders/opengl_es_display.vert Normal file
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#version 310 es
precision mediump float;
out vec2 UV;
void main() {
const vec4 positions[4] = vec4[](
vec4(-1.0, 1.0, 1.0, 1.0), // Top-left
vec4(1.0, 1.0, 1.0, 1.0), // Top-right
vec4(-1.0, -1.0, 1.0, 1.0), // Bottom-left
vec4(1.0, -1.0, 1.0, 1.0) // Bottom-right
);
// The 3DS displays both screens' framebuffer rotated 90 deg counter clockwise
// So we adjust our texcoords accordingly
const vec2 texcoords[4] = vec2[](
vec2(1.0, 1.0), // Top-right
vec2(1.0, 0.0), // Bottom-right
vec2(0.0, 1.0), // Top-left
vec2(0.0, 0.0) // Bottom-left
);
gl_Position = positions[gl_VertexID];
UV = texcoords[gl_VertexID];
}