gallium: Add support for dumping framebuffer modifiers

Adds a simple helper that can be used to dump the name of a framebuffer
modifier for debug purposes.

Signed-off-by: Thierry Reding <treding@nvidia.com>

4 files changed, 140 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/Makefile.sources b/src/gallium/auxiliary/Makefile.sources
index e9ef327fdcc9..0ced1c7b58e2 100644
--- a/src/gallium/auxiliary/Makefile.sources
+++ b/src/gallium/auxiliary/Makefile.sources
@@ -286,6 +286,8 @@ C_SOURCES := \
 	util/u_log.h \
 	util/u_mm.c \
 	util/u_mm.h \
+	util/u_modifier.c \
+	util/u_modifier.h \
 	util/u_network.c \
 	util/u_network.h \
 	util/u_pack_color.h \
diff --git a/src/gallium/auxiliary/meson.build b/src/gallium/auxiliary/meson.build
index 4a0f69845e9d..30e95e7c1875 100644
--- a/src/gallium/auxiliary/meson.build
+++ b/src/gallium/auxiliary/meson.build
@@ -306,6 +306,8 @@ files_libgallium = files(
   'util/u_log.h',
   'util/u_mm.c',
   'util/u_mm.h',
+  'util/u_modifier.c',
+  'util/u_modifier.h',
   'util/u_network.c',
   'util/u_network.h',
   'util/u_pack_color.h',
diff --git a/src/gallium/auxiliary/util/u_modifier.c b/src/gallium/auxiliary/util/u_modifier.c
new file mode 100644
index 000000000000..2fd7f96d298c
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_modifier.c
@@ -0,0 +1,70 @@
+/**************************************************************************
+ *
+ * Copyright 2017 NVIDIA Corporation. All right reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <drm_fourcc.h>
+
+#include "util/u_modifier.h"
+
+#define UTIL_MODIFIER_DESCRIPTION(_modifier) \
+   { .modifier = DRM_FORMAT_MOD_ ## _modifier, .name = "DRM_FORMAT_MOD_" # _modifier }
+
+#define I915_MODIFIER_DESCRIPTION(_modifier) \
+   { .modifier = I915_FORMAT_MOD_ ## _modifier, .name = "I915_FORMAT_MOD_" # _modifier }
+
+const struct util_modifier_description util_modifier_description_table[] = {
+   UTIL_MODIFIER_DESCRIPTION(INVALID),
+   UTIL_MODIFIER_DESCRIPTION(LINEAR),
+   I915_MODIFIER_DESCRIPTION(X_TILED),
+   I915_MODIFIER_DESCRIPTION(Y_TILED),
+   I915_MODIFIER_DESCRIPTION(Yf_TILED),
+   I915_MODIFIER_DESCRIPTION(Y_TILED_CCS),
+   I915_MODIFIER_DESCRIPTION(Yf_TILED_CCS),
+   UTIL_MODIFIER_DESCRIPTION(SAMSUNG_64_32_TILE),
+   UTIL_MODIFIER_DESCRIPTION(VIVANTE_TILED),
+   UTIL_MODIFIER_DESCRIPTION(VIVANTE_SUPER_TILED),
+   UTIL_MODIFIER_DESCRIPTION(VIVANTE_SPLIT_TILED),
+   UTIL_MODIFIER_DESCRIPTION(VIVANTE_SPLIT_SUPER_TILED),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_TEGRA_TILED),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_ONE_GOB),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_TWO_GOB),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_FOUR_GOB),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_EIGHT_GOB),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_SIXTEEN_GOB),
+   UTIL_MODIFIER_DESCRIPTION(NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB),
+   UTIL_MODIFIER_DESCRIPTION(BROADCOM_VC4_T_TILED),
+};
+
+const struct util_modifier_description *
+util_modifier_description(uint64_t modifier)
+{
+   unsigned int i;
+
+   for (i = 0; i < ARRAY_SIZE(util_modifier_description_table); i++)
+      if (util_modifier_description_table[i].modifier == modifier)
+         return &util_modifier_description_table[i];
+
+   return NULL;
+}
diff --git a/src/gallium/auxiliary/util/u_modifier.h b/src/gallium/auxiliary/util/u_modifier.h
new file mode 100644
index 000000000000..9882f61f07db
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_modifier.h
@@ -0,0 +1,66 @@
+/**************************************************************************
+ *
+ * Copyright 2017 NVIDIA Corporation. All right reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef U_MODIFIERS_H
+#define U_MODIFIERS_H
+
+#include "util/u_debug.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct util_modifier_description
+{
+   uint64_t modifier;
+   const char *name;
+};
+
+extern const struct util_modifier_description
+util_modifier_description_table[];
+
+const struct util_modifier_description *
+util_modifier_description(uint64_t modifier);
+
+static inline const char *
+util_modifier_name(uint64_t modifier)
+{
+   const struct util_modifier_description *desc;
+
+   desc = util_modifier_description(modifier);
+   assert(desc);
+
+   if (!desc)
+      return "DRM_FORMAT_MOD_???";
+
+   return desc->name;
+}
+
+#ifdef __cplusplus
+} // extern "C" {
+#endif
+
+#endif /* !U_MODIFIERS_H */