Mesa (master): dri: fix error value returned by driGLFormatToImageFormat()

[Eric Engeström]

Module: Mesa
Branch: master
Commit: d3ca7bd45223aefc60174ad7c5957d3d5792192a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d3ca7bd45223aefc60174ad7c5957d3d5792192a

Author: Eric Engestrom <eric.engestrom at intel.com>
Date:   Fri May 18 15:53:58 2018 +0100

dri: fix error value returned by driGLFormatToImageFormat()

0 is not a valid value for the __DRI_IMAGE_FORMAT_* enum.
It is, however, the value of MESA_FORMAT_NONE, which two of the callers
(i915 & i965) checked for.

The other callers (that check for errors, ie. st/dri) already check for
__DRI_IMAGE_FORMAT_NONE.

Signed-off-by: Eric Engestrom <eric.engestrom at intel.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>

---

 src/mesa/drivers/dri/common/dri_util.c   | 2 +-
 src/mesa/drivers/dri/i915/intel_screen.c | 2 +-
 src/mesa/drivers/dri/i965/intel_screen.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index c58650491d..d7dff235f2 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -901,7 +901,7 @@ driGLFormatToImageFormat(mesa_format format)
    case MESA_FORMAT_B8G8R8A8_SRGB:
       return __DRI_IMAGE_FORMAT_SARGB8;
    default:
-      return 0;
+      return __DRI_IMAGE_FORMAT_NONE;
    }
 }
 
diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 5024a69bd4..882c498622 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -415,7 +415,7 @@ intel_create_image_from_texture(__DRIcontext *context, int target,
    image->data = loaderPrivate;
    intel_setup_image_from_mipmap_tree(intel, image, iobj->mt, level, zoffset);
    image->dri_format = driGLFormatToImageFormat(image->format);
-   if (image->dri_format == MESA_FORMAT_NONE) {
+   if (image->dri_format == __DRI_IMAGE_FORMAT_NONE) {
       *error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
       free(image);
       return NULL;
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index ab6c003b0f..935711106c 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -591,7 +591,7 @@ intel_create_image_from_texture(__DRIcontext *context, int target,
    image->dri_format = driGLFormatToImageFormat(image->format);
    image->has_depthstencil = iobj->mt->stencil_mt? true : false;
    image->planar_format = iobj->planar_format;
-   if (image->dri_format == MESA_FORMAT_NONE) {
+   if (image->dri_format == __DRI_IMAGE_FORMAT_NONE) {
       *error = __DRI_IMAGE_ERROR_BAD_PARAMETER;
       free(image);
       return NULL;