diff options
author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-04-27 11:22:37 +0300 |
---|---|---|
committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-04-27 13:14:14 +0300 |
commit | e01cadd657c76267266546781703df107c55f83a (patch) | |
tree | af6685123707af7cce17c74d681dcce378d4bc72 /source/blender/windowmanager/WM_api.h | |
parent | 868c9ac408f75634c75bf4bc0b17c87b79d7af73 (diff) |
WM: new offscreen window draw method to replace all existing methods.
For Blender 2.8 we had to be compatible with very old OpenGL versions, and
triple buffer was designed to work without offscreen rendering, by copying
the the backbuffer to a texture right before swapping. This way we could
avoid redrawing unchanged regions by copying them from this texture on the
next redraws. Triple buffer used to suffer from poor performance and driver
bugs on specific cards, so alternative draw methods remained available.
Now that we require newer OpenGL, we can have just a single draw method
that draw each region into an offscreen buffer, and then draws those to
the screen. This has some advantages:
* Poor 3D view performance when using Region Overlap should be solved now,
since we can also cache overlapping regions in offscreen buffers.
* Page flip, anaglyph and interlace stereo drawing can be a little faster
by avoiding a copy to an intermediate texture.
* The new 3D view drawing already writes to an offscreen buffer, which we
can draw from directly instead of duplicating it to another buffer.
* Eventually we will be able to remove depth and stencil buffers from the
window and save memory, though at the moment there are still some tools
using it so it's not possible yet.
* This also fixes a bug with Eevee sampling not progressing with stereo
drawing in the 3D viewport.
Differential Revision: https://developer.blender.org/D3061
Diffstat (limited to 'source/blender/windowmanager/WM_api.h')
-rw-r--r-- | source/blender/windowmanager/WM_api.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h index de5ce6d211d..c65f1064830 100644 --- a/source/blender/windowmanager/WM_api.h +++ b/source/blender/windowmanager/WM_api.h @@ -68,6 +68,7 @@ struct ScrArea; struct Main; struct bToolDef; struct ViewLayer; +struct GPUViewport; #ifdef WITH_INPUT_NDOF struct wmNDOFMotionData; @@ -139,9 +140,6 @@ struct wmWindow *WM_window_open(struct bContext *C, const struct rcti *rect); struct wmWindow *WM_window_open_temp(struct bContext *C, int x, int y, int sizex, int sizey, int type); void WM_window_set_dpi(wmWindow *win); - /* returns true if draw method is triple buffer */ -bool WM_is_draw_triple(struct wmWindow *win); - bool WM_stereo3d_enabled(struct wmWindow *win, bool only_fullscreen_test); @@ -562,6 +560,11 @@ void *WM_draw_cb_activate( void WM_draw_cb_exit(struct wmWindow *win, void *handle); void WM_redraw_windows(struct bContext *C); + /* Region drawing */ +void WM_draw_region_free(struct ARegion *ar); +struct GPUViewport *WM_draw_region_get_viewport(struct ARegion *ar, int view); +struct GPUViewport *WM_draw_region_get_bound_viewport(struct ARegion *ar); + void WM_main_playanim(int argc, const char **argv); /* debugging only, convenience function to write on crash */ |