diff options
| -rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index ed2be06254..7b116b30e5 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -70,6 +70,19 @@ static uint32_t r300_translate_texformat(enum pipe_format format) R300_TX_FORMAT_B_SHIFT, R300_TX_FORMAT_A_SHIFT }; + const uint32_t swizzle_arith[4] = { + R300_TX_FORMAT_X, + R300_TX_FORMAT_Y, + R300_TX_FORMAT_Z, + R300_TX_FORMAT_W + }; + const uint32_t swizzle_array[4] = { + R300_TX_FORMAT_W, + R300_TX_FORMAT_Z, + R300_TX_FORMAT_Y, + R300_TX_FORMAT_X + }; + const uint32_t *swizzle; const uint32_t sign_bit[4] = { R300_TX_FORMAT_SIGNED_X, R300_TX_FORMAT_SIGNED_Y, @@ -115,20 +128,23 @@ static uint32_t r300_translate_texformat(enum pipe_format format) } /* Add swizzle. */ + swizzle = desc->layout == UTIL_FORMAT_LAYOUT_ARITH ? + swizzle_arith : swizzle_array; + for (i = 0; i < 4; i++) { switch (desc->swizzle[i]) { case UTIL_FORMAT_SWIZZLE_X: case UTIL_FORMAT_SWIZZLE_NONE: - result |= R300_TX_FORMAT_X << swizzle_shift[i]; + result |= swizzle[0] << swizzle_shift[i]; break; case UTIL_FORMAT_SWIZZLE_Y: - result |= R300_TX_FORMAT_Y << swizzle_shift[i]; + result |= swizzle[1] << swizzle_shift[i]; break; case UTIL_FORMAT_SWIZZLE_Z: - result |= R300_TX_FORMAT_Z << swizzle_shift[i]; + result |= swizzle[2] << swizzle_shift[i]; break; case UTIL_FORMAT_SWIZZLE_W: - result |= R300_TX_FORMAT_W << swizzle_shift[i]; + result |= swizzle[3] << swizzle_shift[i]; break; case UTIL_FORMAT_SWIZZLE_0: result |= R300_TX_FORMAT_ZERO << swizzle_shift[i]; |