Mesa (mesa_7_6_branch): radeon: fix scissor regression

[Alex Deucher]

Module: Mesa
Branch: mesa_7_6_branch
Commit: 194ede4bf97547ce8a61587ede0b0a5054955783
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=194ede4bf97547ce8a61587ede0b0a5054955783

Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Fri Oct  9 15:44:32 2009 -0400

radeon: fix scissor regression

fixes fdo bug 24248

---

 src/mesa/drivers/dri/r600/r700_state.c      |   10 +++++++---
 src/mesa/drivers/dri/radeon/radeon_common.c |    9 ++++-----
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index 124469b..98f116d 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -1269,11 +1269,15 @@ void r700SetScissor(context_t *context) //---------------
 		return;
 	}
 	if (context->radeon.state.scissor.enabled) {
-		/* r600 has exclusive scissors */
 		x1 = context->radeon.state.scissor.rect.x1;
 		y1 = context->radeon.state.scissor.rect.y1;
-		x2 = context->radeon.state.scissor.rect.x2 + 1;
-		y2 = context->radeon.state.scissor.rect.y2 + 1;
+		x2 = context->radeon.state.scissor.rect.x2;
+		y2 = context->radeon.state.scissor.rect.y2;
+		/* r600 has exclusive BR scissors */
+		if (context->radeon.radeonScreen->kernel_mm) {
+			x2++;
+			y2++;
+		}
 	} else {
 		if (context->radeon.radeonScreen->driScreen->dri2.enabled) {
 			x1 = 0;
diff --git a/src/mesa/drivers/dri/radeon/radeon_common.c b/src/mesa/drivers/dri/radeon/radeon_common.c
index 9817ff8..8032cbc 100644
--- a/src/mesa/drivers/dri/radeon/radeon_common.c
+++ b/src/mesa/drivers/dri/radeon/radeon_common.c
@@ -229,16 +229,15 @@ void radeonUpdateScissor( GLcontext *ctx )
 	}
 	if (!rmesa->radeonScreen->kernel_mm) {
 	   /* Fix scissors for dri 1 */
-
 	   __DRIdrawablePrivate *dPriv = radeon_get_drawable(rmesa);
 	   x1 += dPriv->x;
-	   x2 += dPriv->x;
+	   x2 += dPriv->x + 1;
 	   min_x += dPriv->x;
-	   max_x += dPriv->x;
+	   max_x += dPriv->x + 1;
 	   y1 += dPriv->y;
-	   y2 += dPriv->y;
+	   y2 += dPriv->y + 1;
 	   min_y += dPriv->y;
-	   max_y += dPriv->y;
+	   max_y += dPriv->y + 1;
 	}
 
 	rmesa->state.scissor.rect.x1 = CLAMP(x1,  min_x, max_x);