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-rw-r--r--src/gallium/drivers/r300/r300_reg.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_reg.h b/src/gallium/drivers/r300/r300_reg.h
index 1c2b252887..0d6b7654f3 100644
--- a/src/gallium/drivers/r300/r300_reg.h
+++ b/src/gallium/drivers/r300/r300_reg.h
@@ -1556,6 +1556,26 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
# define R300_TX_FORMAT_32F_32F 0x1C
# define R300_TX_FORMAT_32F_32F_32F_32F 0x1D
# define R300_TX_FORMAT_W24_FP 0x1E
+# define R400_TX_FORMAT_ATI2N 0x1F
+
+/* These need TX_FORMAT2_[0-15].TXFORMAT_MSB set.
+
+ My guess is the 10-bit formats are the 8-bit ones but with filtering being
+ performed with the precision of 10 bits per channel. This makes sense
+ with sRGB textures since the conversion to linear space reduces the precision
+ significantly so the shader gets approximately the 8-bit precision
+ in the end. It might also improve the quality of HDR rendering where
+ high-precision filtering is desirable.
+
+ Again, this is guessed, the formats might mean something entirely else.
+ The others should be fine. */
+# define R500_TX_FORMAT_X1 0x0
+# define R500_TX_FORMAT_X1_REV 0x1
+# define R500_TX_FORMAT_X10 0x2
+# define R500_TX_FORMAT_Y10X10 0x3
+# define R500_TX_FORMAT_W10Z10Y10X10 0x4
+# define R500_TX_FORMAT_ATI1N 0x5
+
# define R300_TX_FORMAT_SIGNED_W (1 << 5)
# define R300_TX_FORMAT_SIGNED_Z (1 << 6)