Reviewed-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>

On 06/06/18 18:47, Jason Ekstrand wrote:
This reworks it to work like query_dma_buf_modifiers and, in particular,
makes it more flexible so that we can disallow a non-static set of
formats.

Cc: mesa-sta...@lists.freedesktop.org
---
  src/mesa/drivers/dri/i965/intel_screen.c | 25 ++++++++++++------------
  1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_screen.c 
b/src/mesa/drivers/dri/i965/intel_screen.c
index 935711106c0..2c783591202 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1266,22 +1266,23 @@ static GLboolean
  intel_query_dma_buf_formats(__DRIscreen *screen, int max,
                              int *formats, int *count)
  {
-   int i, j = 0;
+   int num_formats = 0, i;
- if (max == 0) {
-      /* Note, sRGB formats not included. */
-      *count = ARRAY_SIZE(intel_image_formats) - 2;
-      return true;
-   }
+   for (i = 0; i < ARRAY_SIZE(intel_image_formats); i++) {
+      if (intel_image_formats[i].fourcc == __DRI_IMAGE_FOURCC_SARGB8888 ||
+          intel_image_formats[i].fourcc == __DRI_IMAGE_FOURCC_SABGR8888)
+         continue;
- for (i = 0; i < (ARRAY_SIZE(intel_image_formats)) && j < max; i++) {
-     if (intel_image_formats[i].fourcc == __DRI_IMAGE_FOURCC_SARGB8888 ||
-         intel_image_formats[i].fourcc == __DRI_IMAGE_FOURCC_SABGR8888)
-       continue;
-     formats[j++] = intel_image_formats[i].fourcc;
+      num_formats++;
+      if (max == 0)
+         continue;
+
+      formats[num_formats - 1] = intel_image_formats[i].fourcc;
+      if (num_formats >= max)
+         break;
     }
- *count = j;
+   *count = num_formats;
     return true;
  }


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