[PATCH 11/11] etnaviv: advertise supported dmabuf modifiers

[Lucas Stach]

Simply advertise all supported modifiers, independent of the format.
Special formats, like compressed, which don't support all those modifiers
are already culled from the dmabuf format list, as we don't support
the render target binding for them.

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 src/gallium/drivers/etnaviv/etnaviv_screen.c | 36 ++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index b70897b6e41f..571f0b3d42d8 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -45,6 +45,8 @@
 
 #include "state_tracker/drm_driver.h"
 
+#include <drm_fourcc.h>
+
 #define ETNA_DRM_VERSION(major, minor) ((major) << 16 | (minor))
 #define ETNA_DRM_VERSION_FENCE_FD      ETNA_DRM_VERSION(1, 1)
 
@@ -545,6 +547,39 @@ etna_screen_is_format_supported(struct pipe_screen *pscreen,
    return usage == allowed;
 }
 
+const uint64_t supported_modifiers[] = {
+   DRM_FORMAT_MOD_LINEAR,
+   DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED,
+   DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED,
+   DRM_FORMAT_MOD_VIVANTE_TILED,
+   DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
+};
+
+static void
+etna_screen_query_dmabuf_modifiers(struct pipe_screen *screen,
+                                   enum pipe_format format, int max,
+                                   uint64_t *modifiers,
+                                   unsigned int *external_only, int *count)
+{
+   int i;
+
+   if (!max) {
+      *count = ARRAY_SIZE(supported_modifiers);
+      return;
+   }
+
+   if (max > ARRAY_SIZE(supported_modifiers))
+      max = ARRAY_SIZE(supported_modifiers);
+
+   for (i = 0; i < max; i++) {
+      modifiers[i] = supported_modifiers[i];
+      if (external_only)
+         external_only[i] = 0;
+   }
+
+   *count = i;
+}
+
 static boolean
 etna_get_specs(struct etna_screen *screen)
 {
@@ -839,6 +874,7 @@ etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
    pscreen->get_timestamp = etna_screen_get_timestamp;
    pscreen->context_create = etna_context_create;
    pscreen->is_format_supported = etna_screen_is_format_supported;
+   pscreen->query_dmabuf_modifiers = etna_screen_query_dmabuf_modifiers;
 
    etna_fence_screen_init(pscreen);
    etna_query_screen_init(pscreen);
-- 
2.11.0