r600g: add support for signed normalized frame buffers

[mesa.git] / src / gallium / drivers / r600 / r600_state.c

diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 54cc79b15494f5996071b98ace2faa89a6f1f771..fa011612aebdb3ddbf4cd00a91ad6760e84999be 100644 (file)
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -844,6 +844,17 @@ static void r600_cb(struct r600_pipe_context *rctx, struct r600_pipe_state *rsta
        desc = util_format_description(rtex->resource.base.b.format);
        if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
                ntype = V_0280A0_NUMBER_SRGB;
+        else if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) {
+               switch(desc->channel[0].type) {
+               case UTIL_FORMAT_TYPE_UNSIGNED:
+                       ntype = V_0280A0_NUMBER_UNORM;
+                       break;
+
+               case UTIL_FORMAT_TYPE_SIGNED:
+                       ntype = V_0280A0_NUMBER_SNORM;
+                       break;
+               }
+       }
 
        format = r600_translate_colorformat(rtex->resource.base.b.format);
        swap = r600_translate_colorswap(rtex->resource.base.b.format);