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vo_opengl: cocoa: implement alpha window support

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With --vo=opengl:alpha=yes, the Cocoa backend will now render alpha
video without background.
This commit is contained in:
wm4 2015-12-19 09:30:20 +01:00
parent fc9eef3b81
commit d2baaaa7df
2 changed files with 11 additions and 2 deletions
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6
video/out/cocoa_common.m
View File

@ -591,6 +591,12 @@ int vo_cocoa_config_window(struct vo *vo)
cocoa_add_fs_screen_profile_observer(vo);
cocoa_set_window_title(vo);
vo_set_level(vo, vo->opts->ontop);
GLint o;
if (!CGLGetParameter(s->cgl_ctx, kCGLCPSurfaceOpacity, &o) && !o) {
[s->window setOpaque:NO];
[s->window setBackgroundColor:[NSColor clearColor]];
}
}
s->vo_ready = true;

7
video/out/opengl/cocoa.c
View File

@ -99,7 +99,7 @@ error_out:
return err;
}
static bool create_gl_context(struct MPGLContext *ctx)
static bool create_gl_context(struct MPGLContext *ctx, int vo_flags)
{
struct cgl_context *p = ctx->priv;
CGLError err;
@ -124,6 +124,9 @@ static bool create_gl_context(struct MPGLContext *ctx)
vo_cocoa_set_opengl_ctx(ctx->vo, p->ctx);
CGLSetCurrentContext(p->ctx);
if (vo_flags & VOFLAG_ALPHA)
CGLSetParameter(p->ctx, kCGLCPSurfaceOpacity, &(GLint){0});
ctx->depth_r = ctx->depth_g = ctx->depth_b = cgl_color_size(ctx);
mpgl_load_functions(ctx->gl, (void *)cocoa_glgetaddr, NULL, ctx->vo->log);
@ -143,7 +146,7 @@ static int cocoa_init(MPGLContext *ctx, int vo_flags)
{
vo_cocoa_init(ctx->vo);
if (!create_gl_context(ctx))
if (!create_gl_context(ctx, vo_flags))
return -1;
ctx->gl->SwapInterval = set_swap_interval;