128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
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#define grub_video_render_target grub_video_fbrender_target
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#include <grub/video.h>
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#include <grub/video_fb.h>
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#include <grub/mm.h>
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static struct
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{
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struct grub_video_mode_info mode_info;
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struct grub_video_render_target *render_target;
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grub_uint8_t *ptr;
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} framebuffer;
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void (*grub_video_capture_refresh_cb) (void);
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static grub_err_t
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grub_video_capture_swap_buffers (void)
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{
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if (grub_video_capture_refresh_cb)
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grub_video_capture_refresh_cb ();
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return GRUB_ERR_NONE;
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}
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static grub_err_t
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grub_video_capture_set_active_render_target (struct grub_video_render_target *target)
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{
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if (target == GRUB_VIDEO_RENDER_TARGET_DISPLAY)
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target = framebuffer.render_target;
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return grub_video_fb_set_active_render_target (target);
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}
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static struct grub_video_adapter grub_video_capture_adapter =
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{
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.name = "Render capture",
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.prio = 0,
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.id = GRUB_VIDEO_ADAPTER_CAPTURE,
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.fini = grub_video_fb_fini,
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.get_info = grub_video_fb_get_info,
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.get_info_and_fini = 0,
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.set_palette = grub_video_fb_set_palette,
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.get_palette = grub_video_fb_get_palette,
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.set_viewport = grub_video_fb_set_viewport,
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.get_viewport = grub_video_fb_get_viewport,
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.map_color = grub_video_fb_map_color,
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.map_rgb = grub_video_fb_map_rgb,
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.map_rgba = grub_video_fb_map_rgba,
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.unmap_color = grub_video_fb_unmap_color,
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.fill_rect = grub_video_fb_fill_rect,
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.blit_bitmap = grub_video_fb_blit_bitmap,
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.blit_render_target = grub_video_fb_blit_render_target,
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.scroll = grub_video_fb_scroll,
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.swap_buffers = grub_video_capture_swap_buffers,
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.create_render_target = grub_video_fb_create_render_target,
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.delete_render_target = grub_video_fb_delete_render_target,
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.set_active_render_target = grub_video_capture_set_active_render_target,
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.get_active_render_target = grub_video_fb_get_active_render_target,
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.next = 0
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};
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static struct grub_video_adapter *saved;
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static struct grub_video_mode_info saved_mode_info;
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grub_err_t
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grub_video_capture_start (const struct grub_video_mode_info *mode_info,
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struct grub_video_palette_data *palette,
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unsigned int palette_size)
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{
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grub_err_t err;
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grub_memset (&framebuffer, 0, sizeof (framebuffer));
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grub_video_fb_init ();
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framebuffer.mode_info = *mode_info;
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framebuffer.mode_info.blit_format = grub_video_get_blit_format (&framebuffer.mode_info);
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framebuffer.ptr = grub_malloc (framebuffer.mode_info.height * framebuffer.mode_info.pitch);
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if (!framebuffer.ptr)
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return grub_errno;
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err = grub_video_fb_create_render_target_from_pointer (&framebuffer.render_target,
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&framebuffer.mode_info,
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framebuffer.ptr);
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if (err)
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return err;
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err = grub_video_fb_set_active_render_target (framebuffer.render_target);
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if (err)
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return err;
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err = grub_video_fb_set_palette (0, palette_size, palette);
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if (err)
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return err;
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saved = grub_video_adapter_active;
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if (saved)
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{
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grub_video_get_info (&saved_mode_info);
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if (saved->fini)
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saved->fini ();
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}
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grub_video_adapter_active = &grub_video_capture_adapter;
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return GRUB_ERR_NONE;
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}
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void *
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grub_video_capture_get_framebuffer (void)
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{
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return framebuffer.ptr;
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}
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void
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grub_video_capture_end (void)
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{
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grub_free (framebuffer.ptr);
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grub_video_fb_fini ();
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grub_video_adapter_active = saved;
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if (saved)
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{
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if (saved->init)
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saved->init ();
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if (saved->setup)
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saved->setup (saved_mode_info.width, saved_mode_info.height, 0, 0);
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}
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}
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