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cocoa: gl3: support querying of colors bit depth

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Add support for querying the bit depth of the colors from the OpenGL
context. This allows to perform dithering correctly.
This commit is contained in:
Stefano Pigozzi 2012-05-14 16:33:06 +02:00
parent 4a2bd440dd
commit 43337db0a4
3 changed files with 21 additions and 0 deletions
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2
libvo/cocoa_common.h
View File

@ -46,4 +46,6 @@ int vo_cocoa_swap_interval(int enabled);
void *vo_cocoa_cgl_context(void);
void *vo_cocoa_cgl_pixel_format(void);
int vo_cocoa_cgl_color_size(void);
#endif /* MPLAYER_COCOA_COMMON_H */

16
libvo/cocoa_common.m
View File

@ -405,6 +405,22 @@ void *vo_cocoa_cgl_pixel_format(void)
return [s->pixelFormat CGLPixelFormatObj];
}
int vo_cocoa_cgl_color_size(void)
{
GLint value;
CGLDescribePixelFormat(vo_cocoa_cgl_pixel_format(), 0,
kCGLPFAColorSize, &value);
switch (value) {
case 32:
case 24:
return 8;
case 16:
return 5;
}
return 8;
}
void create_menu()
{
NSMenu *menu;

3
libvo/gl_common.c
View File

@ -1727,6 +1727,9 @@ static int create_window_cocoa_gl3(struct MPGLContext *ctx, int gl_flags,
{
int rv = vo_cocoa_create_window(ctx->vo, d_width, d_height, flags, 1);
getFunctions(ctx->gl, (void *)vo_cocoa_glgetaddr, NULL, true);
ctx->depth_r = vo_cocoa_cgl_color_size();
ctx->depth_g = vo_cocoa_cgl_color_size();
ctx->depth_b = vo_cocoa_cgl_color_size();
return rv;
}