[PATCH xf86-video-ati 1/6] Create radeon_pixmap_clear helper

[michel@xxxxxxxxxxx (Michel Dänzer)]

From: Michel Dänzer <michel.daenzer@xxxxxxx>

Preparatory, no functional change intended yet.

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/drmmode_display.c  | 16 +---------------
 src/radeon_bo_helper.c | 21 +++++++++++++++++++++
 src/radeon_bo_helper.h |  3 +++
 3 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index f926bc018..387d9e094 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -2211,9 +2211,6 @@ drmmode_xf86crtc_resize (ScrnInfoPtr scrn, int width, int height)
 	uint32_t tiling_flags = 0, base_align;
 	PixmapPtr ppix = screen->GetScreenPixmap(screen);
 	void *fb_shadow;
-	xRectangle rect;
-	Bool force;
-	GCPtr gc;
 
 	if (scrn->virtualX == width && scrn->virtualY == height)
 		return TRUE;
@@ -2356,18 +2353,7 @@ drmmode_xf86crtc_resize (ScrnInfoPtr scrn, int width, int height)
 			goto fail;
 	}
 
-	/* Clear new buffer */
-	gc = GetScratchGC(ppix->drawable.depth, scrn->pScreen);
-	force = info->accel_state->force;
-	info->accel_state->force = TRUE;
-	ValidateGC(&ppix->drawable, gc);
-	rect.x = 0;
-	rect.y = 0;
-	rect.width = width;
-	rect.height = height;
-	(*gc->ops->PolyFillRect)(&ppix->drawable, gc, 1, &rect);
-	FreeScratchGC(gc);
-	info->accel_state->force = force;
+	radeon_pixmap_clear(ppix);
 	radeon_cs_flush_indirect(scrn);
 	radeon_bo_wait(info->front_bo);
 
diff --git a/src/radeon_bo_helper.c b/src/radeon_bo_helper.c
index a8ba76185..01b9e3df5 100644
--- a/src/radeon_bo_helper.c
+++ b/src/radeon_bo_helper.c
@@ -195,6 +195,27 @@ radeon_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width, int height, int depth,
     return bo;
 }
 
+/* Clear the pixmap contents to black */
+void
+radeon_pixmap_clear(PixmapPtr pixmap)
+{
+    ScreenPtr screen = pixmap->drawable.pScreen;
+    RADEONInfoPtr info = RADEONPTR(xf86ScreenToScrn(screen));
+    GCPtr gc = GetScratchGC(pixmap->drawable.depth, screen);
+    Bool force = info->accel_state->force;
+    xRectangle rect;
+
+    info->accel_state->force = TRUE;
+    ValidateGC(&pixmap->drawable, gc);
+    rect.x = 0;
+    rect.y = 0;
+    rect.width = pixmap->drawable.width;
+    rect.height = pixmap->drawable.height;
+    gc->ops->PolyFillRect(&pixmap->drawable, gc, 1, &rect);
+    FreeScratchGC(gc);
+    info->accel_state->force = force;
+}
+
 /* Get GEM handle for the pixmap */
 Bool radeon_get_pixmap_handle(PixmapPtr pixmap, uint32_t *handle)
 {
diff --git a/src/radeon_bo_helper.h b/src/radeon_bo_helper.h
index 771342502..e1856adb1 100644
--- a/src/radeon_bo_helper.h
+++ b/src/radeon_bo_helper.h
@@ -28,6 +28,9 @@ radeon_alloc_pixmap_bo(ScrnInfoPtr pScrn, int width, int height, int depth,
 		       int usage_hint, int bitsPerPixel, int *new_pitch,
 		       struct radeon_surface *new_surface, uint32_t *new_tiling);
 
+extern void
+radeon_pixmap_clear(PixmapPtr pixmap);
+
 extern uint32_t
 radeon_get_pixmap_tiling_flags(PixmapPtr pPix);
 
-- 
2.14.1