From b4483823d9c1205fb9ab8cf5b4c36ee610347a36 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Mon, 7 Jun 2010 04:10:49 +0200 Subject: [PATCH] r300g: fix 24-bit depth texturing This is a secret texture format, do not tell anybody. And it looks like we can read stencil in the shader too. --- src/gallium/drivers/r300/r300_reg.h | 1 + src/gallium/drivers/r300/r300_texture.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/r300/r300_reg.h b/src/gallium/drivers/r300/r300_reg.h index 675a9317f9c..c4fa19ace53 100644 --- a/src/gallium/drivers/r300/r300_reg.h +++ b/src/gallium/drivers/r300/r300_reg.h @@ -1575,6 +1575,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. # define R500_TX_FORMAT_Y10X10 0x3 # define R500_TX_FORMAT_W10Z10Y10X10 0x4 # define R500_TX_FORMAT_ATI1N 0x5 +# define R500_TX_FORMAT_Y8X24 0x6 # define R300_TX_FORMAT_SIGNED_W (1 << 5) diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 4823755fb7a..5a013e2a25a 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -139,7 +139,7 @@ uint32_t r300_translate_texformat(enum pipe_format format, return R300_TX_FORMAT_X16; case PIPE_FORMAT_X8Z24_UNORM: case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - return R300_TX_FORMAT_W24_FP; + return R500_TX_FORMAT_Y8X24; default: return ~0; /* Unsupported. */ } @@ -339,6 +339,8 @@ uint32_t r500_tx_format_msb_bit(enum pipe_format format) switch (format) { case PIPE_FORMAT_RGTC1_UNORM: case PIPE_FORMAT_RGTC1_SNORM: + case PIPE_FORMAT_X8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: return R500_TXFORMAT_MSB; default: return 0; -- 2.30.2