[Mesa-dev] [PATCH 08/11 v5] intel driver: dri image write update

[Zhao Halley]

    add tiling support for intel_image_write()
    all drm image can be written from app
---
 src/mesa/drivers/dri/intel/intel_screen.c |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index 644ec5b..fa36a3f 100755
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -307,10 +307,13 @@ intel_create_image(__DRIscreen *screen,
       tiling = I915_TILING_NONE;
    }
 
+#if 0
+	// add tiling support in intel_image_write(), so all drm images are ok for write
    /* We only support write for cursor drm images */
    if ((use & __DRI_IMAGE_USE_WRITE) &&
        use != (__DRI_IMAGE_USE_WRITE | __DRI_IMAGE_USE_CURSOR))
       return NULL;
+#endif
 
    image = intel_allocate_image(format, loaderPrivate);
    image->usage = use;
@@ -393,9 +396,19 @@ intel_image_write(__DRIimage *image, const void *buf, size_t count)
    if (!(image->usage & __DRI_IMAGE_USE_WRITE))
       return -1;
 
-   drm_intel_bo_map(image->region->bo, true);
+   int tiling, swizzle;
+   dri_bo_get_tiling(image->region->bo, &tiling, &swizzle);
+   if (tiling != I915_TILING_NONE)
+       drm_intel_gem_bo_map_gtt(image->region->bo);
+   else
+       drm_intel_bo_map(image->region->bo, true);
+   
    memcpy(image->region->bo->virtual, buf, count);
-   drm_intel_bo_unmap(image->region->bo);
+
+   if (tiling != I915_TILING_NONE)
+       drm_intel_gem_bo_unmap_gtt(image->region->bo);
+   else
+       drm_intel_bo_unmap(image->region->bo);
 
    return 0;
 }
-- 
1.7.4.1