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vo_opengl: set uniform variable "pixel_size"

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pixel_size is often used variable, also reciprocal is a costly operation
for AMD and older nVidia (prior to Kepler) GPUs.
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igv 2016-02-22 23:15:01 +02:00 committed by wm4
parent 935c8402bc
commit f0794d0544
1 changed files with 2 additions and 0 deletions
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2
video/out/opengl/video.c
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@ -986,6 +986,8 @@ static void load_shader(struct gl_video *p, const char *body)
gl_sc_uniform_f(p->sc, "frame", p->frames_uploaded);
gl_sc_uniform_vec2(p->sc, "image_size", (GLfloat[]){p->image_params.w,
p->image_params.h});
gl_sc_uniform_vec2(p->sc, "pixel_size", (GLfloat[]){1.0f / p->texture_w,
1.0f / p->texture_h});
}
static const char *get_custom_shader_fn(struct gl_video *p, const char *body)