path: root/extra/xf86-video-intel/0003-uxa-Remove-hook-for-CompositeRectangles.patch

From b669f171adece9df7f0c340c664b70e94118a55e Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 23 Mar 2012 14:56:06 +0000
Subject: [PATCH 3/5] uxa: Remove hook for CompositeRectangles

It was broken and not flushing damage correctly. With the
improvements made to the kernel, it is no longer a significant advantage
per se and not worth its additional complexity.

Reported-by: Tilman Sauerbeck <tilman@code-monkey.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32547
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 uxa/uxa-priv.h   |    1 -
 uxa/uxa-render.c |  189 ------------------------------------------------------
 uxa/uxa.c        |    4 --
 3 files changed, 194 deletions(-)

diff --git a/uxa/uxa-priv.h b/uxa/uxa-priv.h
index 0de45f5..b24ec4f 100644
--- a/uxa/uxa-priv.h
+++ b/uxa/uxa-priv.h
@@ -123,7 +123,6 @@ typedef struct {
 	BitmapToRegionProcPtr SavedBitmapToRegion;
 #ifdef RENDER
 	CompositeProcPtr SavedComposite;
-	CompositeRectsProcPtr SavedCompositeRects;
 	TrianglesProcPtr SavedTriangles;
 	GlyphsProcPtr SavedGlyphs;
 	TrapezoidsProcPtr SavedTrapezoids;
diff --git a/uxa/uxa-render.c b/uxa/uxa-render.c
index 877b286..1e88c5d 100644
--- a/uxa/uxa-render.c
+++ b/uxa/uxa-render.c
@@ -947,195 +947,6 @@ uxa_acquire_mask(ScreenPtr screen,
 				    out_x, out_y);
 }
 
-static Bool
-_pixman_region_init_rectangles(pixman_region16_t *region,
-			       int num_rects,
-			       xRectangle *rects,
-			       int tx, int ty)
-{
-	pixman_box16_t stack_boxes[64], *boxes = stack_boxes;
-	pixman_bool_t ret;
-	int i;
-
-	if (num_rects > sizeof(stack_boxes) / sizeof(stack_boxes[0])) {
-		boxes = malloc(sizeof(pixman_box16_t) * num_rects);
-		if (boxes == NULL)
-			return FALSE;
-	}
-
-	for (i = 0; i < num_rects; i++) {
-		boxes[i].x1 = rects[i].x + tx;
-		boxes[i].y1 = rects[i].y + ty;
-		boxes[i].x2 = rects[i].x + tx + rects[i].width;
-		boxes[i].y2 = rects[i].y + ty + rects[i].height;
-	}
-
-	ret = pixman_region_init_rects(region, boxes, num_rects);
-
-	if (boxes != stack_boxes)
-		free(boxes);
-
-	return ret;
-}
-
-void
-uxa_solid_rects (CARD8		op,
-		 PicturePtr	dst,
-		 xRenderColor  *color,
-		 int		num_rects,
-		 xRectangle    *rects)
-{
-	ScreenPtr screen = dst->pDrawable->pScreen;
-	uxa_screen_t *uxa_screen = uxa_get_screen(screen);
-	PixmapPtr dst_pixmap, src_pixmap = NULL;
-	pixman_region16_t region;
-	pixman_box16_t *boxes, *extents;
-	PicturePtr src;
-	int dst_x, dst_y;
-	int num_boxes;
-
-	if (!pixman_region_not_empty(dst->pCompositeClip))
-		return;
-
-	if (uxa_screen->info->flags & UXA_USE_GLAMOR) {
-		int ok;
-
-		uxa_picture_prepare_access(dst, UXA_GLAMOR_ACCESS_RW);
-		ok = glamor_composite_rects_nf(op, dst, color,
-					       num_rects, rects);
-		uxa_picture_finish_access(dst, UXA_GLAMOR_ACCESS_RW);
-
-		if (!ok)
-			goto fallback;
-
-		return;
-	}
-
-	if (dst->alphaMap)
-		goto fallback;
-
-	dst_pixmap = uxa_get_offscreen_pixmap(dst->pDrawable, &dst_x, &dst_y);
-	if (!dst_pixmap)
-		goto fallback;
-
-	if (!_pixman_region_init_rectangles(&region,
-					    num_rects, rects,
-					    dst->pDrawable->x, dst->pDrawable->y))
-		goto fallback;
-
-	if (!pixman_region_intersect(&region, &region, dst->pCompositeClip)) {
-		pixman_region_fini(&region);
-		return;
-	}
-
-	pixman_region_translate(&region, dst_x, dst_y);
-	boxes = pixman_region_rectangles(&region, &num_boxes);
-	extents = pixman_region_extents (&region);
-
-	if (op == PictOpClear)
-		color->red = color->green = color->blue = color->alpha = 0;
-	if (color->alpha >= 0xff00 && op == PictOpOver) {
-		color->alpha = 0xffff;
-		op = PictOpSrc;
-	}
-
-	/* Using GEM, the relocation costs outweigh the advantages of the blitter */
-	if (num_boxes == 1 && (op == PictOpSrc || op == PictOpClear)) {
-		CARD32 pixel;
-
-try_solid:
-		if (uxa_screen->info->check_solid &&
-		    !uxa_screen->info->check_solid(&dst_pixmap->drawable, GXcopy, FB_ALLONES))
-			goto err_region;
-
-		if (!uxa_get_pixel_from_rgba(&pixel,
-					     color->red,
-					     color->green,
-					     color->blue,
-					     color->alpha,
-					     dst->format))
-			goto err_region;
-
-		if (!uxa_screen->info->prepare_solid(dst_pixmap, GXcopy, FB_ALLONES, pixel))
-			goto err_region;
-
-		while (num_boxes--) {
-			uxa_screen->info->solid(dst_pixmap,
-						boxes->x1, boxes->y1,
-						boxes->x2, boxes->y2);
-			boxes++;
-		}
-
-		uxa_screen->info->done_solid(dst_pixmap);
-	} else {
-		int error;
-
-		src = CreateSolidPicture(0, color, &error);
-		if (!src)
-			goto err_region;
-
-		if (!uxa_screen->info->check_composite(op, src, NULL, dst,
-						       extents->x2 - extents->x1,
-						       extents->y2 - extents->y1)) {
-			if (op == PictOpSrc || op == PictOpClear) {
-				FreePicture(src, 0);
-				goto try_solid;
-			}
-
-			goto err_src;
-		}
-
-		if (!uxa_screen->info->check_composite_texture ||
-		    !uxa_screen->info->check_composite_texture(screen, src)) {
-			PicturePtr solid;
-			int src_off_x, src_off_y;
-
-			solid = uxa_acquire_solid(screen, src->pSourcePict);
-			if (!solid)
-				goto err_src;
-			FreePicture(src, 0);
-
-			src = solid;
-			src_pixmap = uxa_get_offscreen_pixmap(src->pDrawable,
-							      &src_off_x, &src_off_y);
-			if (!src_pixmap)
-				goto err_src;
-		}
-
-		if (!uxa_screen->info->prepare_composite(op, src, NULL, dst, src_pixmap, NULL, dst_pixmap))
-			goto err_src;
-
-		while (num_boxes--) {
-			uxa_screen->info->composite(dst_pixmap,
-						    0, 0, 0, 0,
-						    boxes->x1,
-						    boxes->y1,
-						    boxes->x2 - boxes->x1,
-						    boxes->y2 - boxes->y1);
-			boxes++;
-		}
-
-		uxa_screen->info->done_composite(dst_pixmap);
-		FreePicture(src, 0);
-	}
-
-	/* XXX xserver-1.8: CompositeRects is not tracked by Damage, so we must
-	 * manually append the damaged regions ourselves.
-	 */
-	pixman_region_translate(&region, -dst_x, -dst_y);
-	DamageRegionAppend(dst->pDrawable, &region);
-
-	pixman_region_fini(&region);
-	return;
-
-err_src:
-	FreePicture(src, 0);
-err_region:
-	pixman_region_fini(&region);
-fallback:
-	uxa_screen->SavedCompositeRects(op, dst, color, num_rects, rects);
-}
-
 static int
 uxa_try_driver_composite(CARD8 op,
 			 PicturePtr pSrc,
diff --git a/uxa/uxa.c b/uxa/uxa.c
index eb2ae03..b4a1da6 100644
--- a/uxa/uxa.c
+++ b/uxa/uxa.c
@@ -407,7 +407,6 @@ static Bool uxa_close_screen(int i, ScreenPtr pScreen)
 #ifdef RENDER
 	if (ps) {
 		ps->Composite = uxa_screen->SavedComposite;
-		ps->CompositeRects = uxa_screen->SavedCompositeRects;
 		ps->Glyphs = uxa_screen->SavedGlyphs;
 		ps->Trapezoids = uxa_screen->SavedTrapezoids;
 		ps->AddTraps = uxa_screen->SavedAddTraps;
@@ -536,9 +535,6 @@ Bool uxa_driver_init(ScreenPtr screen, uxa_driver_t * uxa_driver)
 			uxa_screen->SavedComposite = ps->Composite;
 			ps->Composite = uxa_composite;
 
-			uxa_screen->SavedCompositeRects = ps->CompositeRects;
-			ps->CompositeRects = uxa_solid_rects;
-
 			uxa_screen->SavedGlyphs = ps->Glyphs;
 			ps->Glyphs = uxa_glyphs;
 
-- 
1.7.10