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egl_helpers: mpegl_cb can now signal an error condition 

This can be used by client code that needs to fail when it cannot find
a suitable EGLConfig.
This commit is contained in:
Anton Kindestam 2018-02-18 23:51:10 +01:00 committed by Kevin Mitchell
parent 4d6601924a
commit bb07b22d42
2 changed files with 8 additions and 1 deletions
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5
video/out/opengl/egl_helpers.c
View File

@ -108,6 +108,11 @@ static bool create_context(struct ra_ctx *ctx, EGLDisplay display,
int chosen = 0;
if (cb.refine_config)
chosen = cb.refine_config(cb.user_data, configs, num_configs);
if (chosen < 0) {
talloc_free(configs);
MP_MSG(ctx, msgl, "Could not choose EGLConfig!\n");
return false;
}
EGLConfig config = configs[chosen];
talloc_free(configs);

4
video/out/opengl/egl_helpers.h
View File

@ -15,7 +15,9 @@ bool mpegl_create_context(struct ra_ctx *ctx, EGLDisplay display,
struct mpegl_cb {
// if set, pick the desired config from the given list and return its index
// defaults to 0 (they are sorted by eglChooseConfig)
// defaults to 0 (they are sorted by eglChooseConfig). return a negative
// number to indicate an error condition or that no suitable configs could
// be found.
int (*refine_config)(void *user_data, EGLConfig *configs, int num_configs);
void *user_data;
};