Mesa (master): i915g: Fix off-by-one in scissors.

Stephane Marchesin marcheu at kemper.freedesktop.org
Thu Aug 25 22:57:12 PDT 2011


Module: Mesa
Branch: master
Commit: a2c467c0548b658a92af11c063520bc4d027895e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a2c467c0548b658a92af11c063520bc4d027895e

Author: David Reveman <reveman at chromium.org>
Date:   Tue Aug 23 18:49:11 2011 -0700

i915g: Fix off-by-one in scissors.

---

 src/gallium/drivers/i915/i915_state_dynamic.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/i915/i915_state_dynamic.c b/src/gallium/drivers/i915/i915_state_dynamic.c
index 204cee6..1a21433 100644
--- a/src/gallium/drivers/i915/i915_state_dynamic.c
+++ b/src/gallium/drivers/i915/i915_state_dynamic.c
@@ -268,8 +268,8 @@ static void upload_SCISSOR_RECT(struct i915_context *i915)
 {
    unsigned x1 = i915->scissor.minx;
    unsigned y1 = i915->scissor.miny;
-   unsigned x2 = i915->scissor.maxx;
-   unsigned y2 = i915->scissor.maxy;
+   unsigned x2 = i915->scissor.maxx - 1;
+   unsigned y2 = i915->scissor.maxy - 1;
    unsigned sc[3];
 
    sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;



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