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shader: downgrade GLSL to 1.20 because of macOS

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Sebastian Krzyszkowiak 2018-07-05 02:32:58 +02:00
parent 3a04729fb6
commit d512b31889
1 changed files with 8 additions and 1 deletions
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9
src/shader.c
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@ -28,7 +28,14 @@ static ALLEGRO_USTR* GetShaderSource(struct Game* game, const char* filename) {
FatalError(game, false, "Failed to open shader file %s", filename);
return NULL;
}
ALLEGRO_USTR* str = al_ustr_new(al_get_opengl_variant() == ALLEGRO_OPENGL_ES ? "#version 100\n" : "#version 130\n");
// Use GLSL 1.20 (GL 2.1) and GLSL ES 1.00 (GLES 2.0)
// We need to use 120 for GL because non-core GL profile on macOS is limited to 2.1
// Even when ignoring macOS, the highest possible option right now is GLSL 1.30, because
// most Mesa drivers implement only OpenGL 3.0 on compatibility profile.
// TODO: upgrade to GLSL 1.50 (GL 3.2, highest possible on macOS) once Allegro works on core profiles
ALLEGRO_USTR* str = al_ustr_new(al_get_opengl_variant() == ALLEGRO_OPENGL_ES ? "#version 100\n" : "#version 120\n");
while (true) {
char buf[512];
size_t n;