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Initial reimport of double buffering

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-11-14 17:00:39 +01:00
parent df48e9e18d
commit 1f56d83788
10 changed files with 318 additions and 23 deletions
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5
include/grub/video.h
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@ -34,6 +34,9 @@ struct grub_video_render_target;
struct grub_video_bitmap;
/* Defines used to describe video mode or rendering target. */
/* If following is set render target contains previously displayed image
after swapping buffers (otherwise it contains newly displayedd image).
*/
#define GRUB_VIDEO_MODE_TYPE_PURE_TEXT 0x00000040
#define GRUB_VIDEO_MODE_TYPE_ALPHA 0x00000020
#define GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED 0x00000010
@ -48,6 +51,8 @@ struct grub_video_bitmap;
#define GRUB_VIDEO_MODE_TYPE_DEPTH_MASK 0x0000ff00
#define GRUB_VIDEO_MODE_TYPE_DEPTH_POS 8
/* The basic render target representing the whole display. This always
renders to the back buffer when double-buffering is in use. */
#define GRUB_VIDEO_RENDER_TARGET_DISPLAY \
((struct grub_video_render_target *) 0)

11
include/grub/video_fb.h
View file

@ -115,4 +115,15 @@ grub_video_fb_get_active_render_target (struct grub_video_fbrender_target **targ
grub_err_t
grub_video_fb_set_active_render_target (struct grub_video_fbrender_target *target);
typedef grub_err_t
(*grub_video_fb_doublebuf_update_screen_t) (struct grub_video_fbrender_target *front,
struct grub_video_fbrender_target *back);
grub_err_t
grub_video_fb_doublebuf_blit_init (struct grub_video_fbrender_target **front,
struct grub_video_fbrender_target **back,
grub_video_fb_doublebuf_update_screen_t *update_screen,
struct grub_video_mode_info mode_info,
void *framebuf);
#endif /* ! GRUB_VIDEO_FB_HEADER */