llvmpipe: frag shader comments

[mesa.git] / src / gallium / drivers / llvmpipe / lp_state_fs.c

diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 1c00c2c707ed5814c3f72dfceffe706e952f627b..ffcc8336b1205511c4818652635d5a08fd70d179 100644 (file)
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -134,11 +134,11 @@ shader_generate(struct llvmpipe_screen *screen,
    unsigned chan;
 
    type.value = 0;
-   type.floating = TRUE;
-   type.sign = TRUE;
-   type.norm = FALSE;
-   type.width = 32;
-   type.length = 4;
+   type.floating = TRUE; /* floating point values */
+   type.sign = TRUE;     /* values are signed */
+   type.norm = FALSE;    /* values are not limited to [0,1] or [-1,1] */
+   type.width = 32;      /* 32-bit float */
+   type.length = 4;      /* 4 element per vector */
 
    elem_type = lp_build_elem_type(type);
    vec_type = lp_build_vec_type(type);