-
-static INLINE uint32_t
-nv50_vbo_type_to_hw(enum pipe_format format)
-{
- const struct util_format_description *desc;
-
- desc = util_format_description(format);
- assert(desc);
-
- switch (desc->channel[0].type) {
- case UTIL_FORMAT_TYPE_FLOAT:
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_FLOAT;
- case UTIL_FORMAT_TYPE_UNSIGNED:
- if (desc->channel[0].normalized) {
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_UNORM;
- }
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_USCALED;
- case UTIL_FORMAT_TYPE_SIGNED:
- if (desc->channel[0].normalized) {
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_SNORM;
- }
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_SSCALED;
- /*
- case PIPE_FORMAT_TYPE_UINT:
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_UINT;
- case PIPE_FORMAT_TYPE_SINT:
- return NV50TCL_VERTEX_ARRAY_ATTRIB_TYPE_SINT; */
- default:
- return 0;
- }
-}
-
-static INLINE uint32_t
-nv50_vbo_size_to_hw(unsigned size, unsigned nr_c)
-{
- static const uint32_t hw_values[] = {
- 0, 0, 0, 0,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_8,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_8_8,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_8_8_8,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_8_8_8_8,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_16,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_16_16,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_16_16_16,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_16_16_16_16,
- 0, 0, 0, 0,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_32,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_32_32,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_32_32_32,
- NV50TCL_VERTEX_ARRAY_ATTRIB_FORMAT_32_32_32_32 };
-
- /* we'd also have R11G11B10 and R10G10B10A2 */
-
- assert(nr_c > 0 && nr_c <= 4);
-
- if (size > 32)
- return 0;
- size >>= (3 - 2);
-
- return hw_values[size + (nr_c - 1)];
-}
-
-static INLINE uint32_t
-nv50_vbo_vtxelt_to_hw(struct pipe_vertex_element *ve)
-{
- uint32_t hw_type, hw_size;
- enum pipe_format pf = ve->src_format;
- const struct util_format_description *desc;
- unsigned size, nr_components;
-
- desc = util_format_description(pf);
- assert(desc);
-
- size = util_format_get_component_bits(pf, UTIL_FORMAT_COLORSPACE_RGB, 0);
- nr_components = util_format_get_nr_components(pf);
-
- hw_type = nv50_vbo_type_to_hw(pf);
- hw_size = nv50_vbo_size_to_hw(size, nr_components);
-
- if (!hw_type || !hw_size) {
- NOUVEAU_ERR("unsupported vbo format: %s\n", util_format_name(pf));
- abort();
- return 0x24e80000;
- }
-
- if (desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_Z) /* BGRA */
- hw_size |= (1 << 31); /* no real swizzle bits :-( */
-
- return (hw_type | hw_size);
-}