GPU: add offscreen buffer drawing utility functions.

4 files changed, 8 insertions, 4 deletions

diff --git a/source/blender/editors/render/render_opengl.c b/source/blender/editors/render/render_opengl.c
index 6e969067985..8eb9283790b 100644
--- a/source/blender/editors/render/render_opengl.c
+++ b/source/blender/editors/render/render_opengl.c
@@ -652,7 +652,7 @@ static bool screen_opengl_render_init(bContext *C, wmOperator *op)
 	sizey = (scene->r.size * scene->r.ysch) / 100;
 
 	/* corrects render size with actual size, not every card supports non-power-of-two dimensions */
-	ofs = GPU_offscreen_create(sizex, sizey, full_samples ? 0 : samples, true, err_out);
+	ofs = GPU_offscreen_create(sizex, sizey, full_samples ? 0 : samples, true, true, err_out);
 
 	if (!ofs) {
 		BKE_reportf(op->reports, RPT_ERROR, "Failed to create OpenGL off-screen buffer, %s", err_out);
diff --git a/source/blender/editors/screen/screen_draw.c b/source/blender/editors/screen/screen_draw.c
index 2e4e9127ed6..6ea0a34c21d 100644
--- a/source/blender/editors/screen/screen_draw.c
+++ b/source/blender/editors/screen/screen_draw.c
@@ -499,7 +499,7 @@ static void screen_preview_draw(const bScreen *screen, int size_x, int size_y)
 void ED_screen_preview_render(const bScreen *screen, int size_x, int size_y, unsigned int *r_rect)
 {
 	char err_out[256] = "unknown";
-	GPUOffScreen *offscreen = GPU_offscreen_create(size_x, size_y, 0, false, err_out);
+	GPUOffScreen *offscreen = GPU_offscreen_create(size_x, size_y, 0, true, false, err_out);
 
 	GPU_offscreen_bind(offscreen, true);
 	glClearColor(0.0, 0.0, 0.0, 0.0);
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index f96dead513c..c3a42cc0cad 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -1918,6 +1918,10 @@ void view3d_main_region_draw(const bContext *C, ARegion *ar)
 	view3d_draw_view(C, ar);
 	GPU_viewport_unbind(rv3d->viewport);
 
+	rcti rect = ar->winrct;
+	BLI_rcti_translate(&rect, -ar->winrct.xmin, -ar->winrct.ymin);
+	GPU_viewport_draw_to_screen(rv3d->viewport, &rect);
+
 	v3d->flag |= V3D_INVALID_BACKBUF;
 }
 
@@ -2130,7 +2134,7 @@ ImBuf *ED_view3d_draw_offscreen_imbuf(
 
 	if (own_ofs) {
 		/* bind */
-		ofs = GPU_offscreen_create(sizex, sizey, use_full_sample ? 0 : samples, false, err_out);
+		ofs = GPU_offscreen_create(sizex, sizey, use_full_sample ? 0 : samples, true, false, err_out);
 		if (ofs == NULL) {
 			return NULL;
 		}
diff --git a/source/blender/editors/space_view3d/view3d_draw_legacy.c b/source/blender/editors/space_view3d/view3d_draw_legacy.c
index aeb2cd11e39..1c6916d3820 100644
--- a/source/blender/editors/space_view3d/view3d_draw_legacy.c
+++ b/source/blender/editors/space_view3d/view3d_draw_legacy.c
@@ -286,7 +286,7 @@ static void backdrawview3d(
 		}
 
 		if (!rv3d->gpuoffscreen) {
-			rv3d->gpuoffscreen = GPU_offscreen_create(w, h, 0, false, error);
+			rv3d->gpuoffscreen = GPU_offscreen_create(w, h, 0, true, false, error);
 
 			if (!rv3d->gpuoffscreen)
 				fprintf(stderr, "Failed to create offscreen selection buffer for multisample: %s\n", error);