[Mesa-dev] [PATCH RFC 2/2] i965: Implement validation for scanout usage

[Daniel Stone]

Add a more comprehensive validateUsage() call, checking that the tiling
mode for the __DRIimage.

Signed-off-by: Daniel Stone <daniels at collabora.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 src/mesa/drivers/dri/i965/intel_screen.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index e52554c..fb75e72 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -632,6 +632,15 @@ intel_validate_usage(__DRIimage *image, unsigned int use)
 	 return GL_FALSE;
    }
 
+   if (use & __DRI_IMAGE_USE_SCANOUT) {
+      uint32_t tiling, swizzle;
+
+      drm_intel_bo_get_tiling(image->bo, &tiling, &swizzle);
+
+      if (tiling == I915_TILING_Y && image->gen < 9)
+         return GL_FALSE;
+   }
+
    return GL_TRUE;
 }
 
-- 
2.7.4