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[mesa.git] / src / gallium / drivers / r600 / r600_formats.h

diff --git a/src/gallium/drivers/r600/r600_formats.h b/src/gallium/drivers/r600/r600_formats.h
index 0c91a212384fa76a98c02002b1a416c7b9eec5b1..9533aaa137853e2d1070088682f4c6d72eb1d8a6 100644 (file)
--- a/src/gallium/drivers/r600/r600_formats.h
+++ b/src/gallium/drivers/r600/r600_formats.h
@@ -1,6 +1,9 @@
 #ifndef R600_FORMATS_H
 #define R600_FORMATS_H
 
+#include "util/u_format.h"
+#include "r600_pipe.h"
+
 /* list of formats from R700 ISA document - apply across GPUs in different registers */
 #define     FMT_INVALID                     0x00000000
 #define     FMT_8                           0x00000001
@@ -52,5 +55,67 @@
 #define     FMT_BC3                         0x00000033
 #define     FMT_BC4                         0x00000034
 #define     FMT_BC5                         0x00000035
+#define     FMT_BC6                         0x00000036
+#define     FMT_BC7                         0x00000037
+#define     FMT_32_AS_32_32_32_32           0x00000038
+
+#define     ENDIAN_NONE                     0
+#define     ENDIAN_8IN16                    1
+#define     ENDIAN_8IN32                    2
+#define     ENDIAN_8IN64                    3
+
+static inline unsigned r600_endian_swap(unsigned size)
+{
+       if (R600_BIG_ENDIAN) {
+               switch (size) {
+               case 64:
+                       return ENDIAN_8IN64;
+               case 32:
+                       return ENDIAN_8IN32;
+               case 16:
+                       return ENDIAN_8IN16;
+               default:
+                       return ENDIAN_NONE;
+               }
+       } else {
+               return ENDIAN_NONE;
+       }
+}
+
+static inline bool r600_is_vertex_format_supported(enum pipe_format format)
+{
+       const struct util_format_description *desc = util_format_description(format);
+       unsigned i;
+
+       if (format == PIPE_FORMAT_R11G11B10_FLOAT)
+               return true;
+
+       if (!desc)
+               return false;
+
+       /* Find the first non-VOID channel. */
+       for (i = 0; i < 4; i++) {
+               if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID)
+                       break;
+       }
+       if (i == 4)
+               return false;
+
+       /* No fixed, no double. */
+       if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN ||
+           (desc->channel[i].size == 64 &&
+            desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT) ||
+           desc->channel[i].type == UTIL_FORMAT_TYPE_FIXED)
+               return false;
+
+       /* No scaled/norm formats with 32 bits per channel. */
+       if (desc->channel[i].size == 32 &&
+           !desc->channel[i].pure_integer &&
+           (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED ||
+            desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED))
+               return false;
+
+       return true;
+}
 
 #endif