nv40: re-do vtxbuf format code

diff --git a/src/gallium/drivers/nv40/nv40_vbo.c b/src/gallium/drivers/nv40/nv40_vbo.c
index bedc8c6d4eff283ff12660ceab12970d3d6aa065..f16afc23b843cd1b89a15d638126a7931b309e15 100644 (file)
--- a/src/gallium/drivers/nv40/nv40_vbo.c
+++ b/src/gallium/drivers/nv40/nv40_vbo.c
@@ -9,34 +9,53 @@
 #include "nouveau/nouveau_pushbuf.h"
 
 static INLINE int
-nv40_vbo_ncomp(uint format)
+nv40_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt, unsigned *ncomp)
 {
-       int ncomp = 0;
-
-       if (pf_size_x(format)) ncomp++;
-       if (pf_size_y(format)) ncomp++;
-       if (pf_size_z(format)) ncomp++;
-       if (pf_size_w(format)) ncomp++;
-
-       return ncomp;
-}
-
-static INLINE int
-nv40_vbo_type(uint format)
-{
-       switch (pf_type(format)) {
-       case PIPE_FORMAT_TYPE_FLOAT:
-               return NV40TCL_VTXFMT_TYPE_FLOAT;
-       case PIPE_FORMAT_TYPE_UNORM:
-               return NV40TCL_VTXFMT_TYPE_UBYTE;
+       char fs[128];
+
+       switch (pipe) {
+       case PIPE_FORMAT_R32_FLOAT:
+       case PIPE_FORMAT_R32G32_FLOAT:
+       case PIPE_FORMAT_R32G32B32_FLOAT:
+       case PIPE_FORMAT_R32G32B32A32_FLOAT:
+               *fmt = NV40TCL_VTXFMT_TYPE_FLOAT;
+               break;
+       case PIPE_FORMAT_R8_UNORM:
+       case PIPE_FORMAT_R8G8_UNORM:
+       case PIPE_FORMAT_R8G8B8_UNORM:
+       case PIPE_FORMAT_R8G8B8A8_UNORM:
+               *fmt = NV40TCL_VTXFMT_TYPE_UBYTE;
+               break;
        default:
-       {
-               char fs[128];
-               pf_sprint_name(fs, format);
+               pf_sprint_name(fs, pipe);
                NOUVEAU_ERR("Unknown format %s\n", fs);
-               return NV40TCL_VTXFMT_TYPE_FLOAT;
+               return 1;
        }
+
+       switch (pipe) {
+       case PIPE_FORMAT_R8_UNORM:
+       case PIPE_FORMAT_R32_FLOAT:
+               *ncomp = 1;
+               break;
+       case PIPE_FORMAT_R8G8_UNORM:
+       case PIPE_FORMAT_R32G32_FLOAT:
+               *ncomp = 2;
+               break;
+       case PIPE_FORMAT_R8G8B8_UNORM:
+       case PIPE_FORMAT_R32G32B32_FLOAT:
+               *ncomp = 3;
+               break;
+       case PIPE_FORMAT_R8G8B8A8_UNORM:
+       case PIPE_FORMAT_R32G32B32A32_FLOAT:
+               *ncomp = 4;
+               break;
+       default:
+               pf_sprint_name(fs, pipe);
+               NOUVEAU_ERR("Unknown format %s\n", fs);
+               return 1;
        }
+
+       return 0;
 }
 
 static boolean
@@ -82,11 +101,11 @@ nv40_vbo_static_attrib(struct nv40_context *nv40, int attrib,
                       struct pipe_vertex_buffer *vb)
 {
        struct pipe_winsys *ws = nv40->pipe.winsys;
-       int type, ncomp;
+       unsigned type, ncomp;
        void *map;
 
-       type = nv40_vbo_type(ve->src_format);
-       ncomp = nv40_vbo_ncomp(ve->src_format);
+       if (nv40_vbo_format_to_hw(ve->src_format, &type, &ncomp))
+               return FALSE;
 
        map  = ws->buffer_map(ws, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
        map += vb->buffer_offset + ve->src_offset;
@@ -373,6 +392,7 @@ nv40_vbo_validate(struct nv40_context *nv40)
        for (hw = 0; hw < num_hw; hw++) {
                struct pipe_vertex_element *ve;
                struct pipe_vertex_buffer *vb;
+               unsigned type, ncomp;
 
                if (!(inputs & (1 << hw))) {
                        so_data(vtxbuf, 0);
@@ -389,13 +409,14 @@ nv40_vbo_validate(struct nv40_context *nv40)
                        continue;
                }
 
+               if (nv40_vbo_format_to_hw(ve->src_format, &type, &ncomp))
+                       assert(0);
+
                so_reloc(vtxbuf, vb->buffer, vb->buffer_offset + ve->src_offset,
                         vb_flags | NOUVEAU_BO_LOW | NOUVEAU_BO_OR,
                         0, NV40TCL_VTXBUF_ADDRESS_DMA1);
                so_data (vtxfmt, ((vb->pitch << NV40TCL_VTXFMT_STRIDE_SHIFT) |
-                                 (nv40_vbo_ncomp(ve->src_format) <<
-                                  NV40TCL_VTXFMT_SIZE_SHIFT) |
-                                 nv40_vbo_type(ve->src_format)));
+                                 (ncomp << NV40TCL_VTXFMT_SIZE_SHIFT) | type));
        }
 
        if (ib) {