From: Christian König <deathsimple@vodafone.de>
Date: Sat, 3 Mar 2012 11:48:30 +0000 (+0100)
Subject: r600g: add support for subsampled rgb formats
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fb016854bc4327151e9eee3b7b08d0499976631a;p=mesa.git

r600g: add support for subsampled rgb formats

v2: r600 formats are msb first!

Signed-off-by: Christian König <deathsimple@vodafone.de>
---

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 923efce59e6..ce66117ed47 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -1135,6 +1135,21 @@ uint32_t r600_translate_texformat(struct pipe_screen *screen,
 		}
 	}
 
+	if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
+		switch (format) {
+		case PIPE_FORMAT_R8G8_B8G8_UNORM:
+		case PIPE_FORMAT_G8R8_B8R8_UNORM:
+			result = FMT_GB_GR;
+			goto out_word4;
+		case PIPE_FORMAT_G8R8_G8B8_UNORM:
+		case PIPE_FORMAT_R8G8_R8B8_UNORM:
+			result = FMT_BG_RG;
+			goto out_word4;
+		default:
+			goto out_unknown;
+		}
+	}
+
 	if (format == PIPE_FORMAT_R9G9B9E5_FLOAT) {
 		result = FMT_5_9_9_9_SHAREDEXP;
 		goto out_word4;