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nv2a: Fix handling of NV097_SET_VERTEX_DATA4S_M

This commit is contained in:
Erik Abair 2022-01-09 15:15:17 -08:00 committed by mborgerson
parent 057e7fcfa1
commit 01c2f0fa74
1 changed files with 3 additions and 6 deletions
hw/xbox/nv2a
pgraph.c

9
hw/xbox/nv2a/pgraph.c
View File

@ -3099,14 +3099,11 @@ DEF_METHOD(NV097, SET_VERTEX_DATA4S_M)
int slot = (method - NV097_SET_VERTEX_DATA4S_M) / 4;
unsigned int part = slot % 2;
slot /= 2;
assert(false); /* FIXME: Untested! */
VertexAttribute *attribute = &pg->vertex_attributes[slot];
pgraph_allocate_inline_buffer_vertices(pg, slot);
/* FIXME: Is mapping to [-1,+1] correct? */
attribute->inline_value[part * 2 + 0] = ((int16_t)(parameter & 0xFFFF)
* 2.0 + 1) / 65535.0;
attribute->inline_value[part * 2 + 1] = ((int16_t)(parameter >> 16)
* 2.0 + 1) / 65535.0;
attribute->inline_value[part * 2 + 0] = (float)(int16_t)(parameter & 0xFFFF);
attribute->inline_value[part * 2 + 1] = (float)(int16_t)(parameter >> 16);
if ((slot == 0) && (part == 1)) {
pgraph_finish_inline_buffer_vertex(pg);
}