From bb232fb08211a0a7ec62395192a6bc0a3d70c1fa Mon Sep 17 00:00:00 2001
From: Jannik Vogel <email@jannikvogel.de>
Date: Thu, 16 Jul 2015 11:09:38 +0200
Subject: [PATCH] Skinning registers

---
 hw/xbox/nv2a.c     | 17 +++++++++++++++++
 hw/xbox/nv2a_vsh.h | 10 ++++++++++
 2 files changed, 27 insertions(+)

diff --git a/hw/xbox/nv2a.c b/hw/xbox/nv2a.c
index fd773d87d5..58f20aa3bc 100644
--- a/hw/xbox/nv2a.c
+++ b/hw/xbox/nv2a.c
@@ -779,6 +779,14 @@ static void gl_debug_label(GLenum target, GLuint name, const char *fmt, ...)
 #   define NV097_SET_ALPHA_TEST_ENABLE                        0x00970300
 #   define NV097_SET_BLEND_ENABLE                             0x00970304
 #   define NV097_SET_DEPTH_TEST_ENABLE                        0x0097030C
+#   define NV097_SET_SKIN_MODE                                0x00970328
+#       define NV097_SET_SKIN_MODE_OFF                            0
+#       define NV097_SET_SKIN_MODE_2G                             1
+#       define NV097_SET_SKIN_MODE_2                              2
+#       define NV097_SET_SKIN_MODE_3G                             3
+#       define NV097_SET_SKIN_MODE_3                              4
+#       define NV097_SET_SKIN_MODE_4G                             5
+#       define NV097_SET_SKIN_MODE_4                              6
 #   define NV097_SET_STENCIL_TEST_ENABLE                      0x0097032C
 #   define NV097_SET_ALPHA_FUNC                               0x0097033C
 #   define NV097_SET_ALPHA_REF                                0x00970340
@@ -1328,6 +1336,8 @@ typedef struct ShaderState {
 
     enum Texgen texgen[4][4];
 
+    enum Skinning skinning;
+
     bool normalization;
 
     bool fixed_function;
@@ -2862,6 +2872,9 @@ static void pgraph_bind_shaders(PGRAPHState *pg)
         .alpha_func = GET_MASK(pg->regs[NV_PGRAPH_CONTROL_0],
                                NV_PGRAPH_CONTROL_0_ALPHAFUNC),
 
+        .skinning = GET_MASK(pg->regs[NV_PGRAPH_CSV0_D],
+                             NV_PGRAPH_CSV0_D_SKIN),
+
         .normalization = pg->regs[NV_PGRAPH_CSV0_C]
                            & NV_PGRAPH_CSV0_C_NORMALIZATION_ENABLE,
 
@@ -4006,6 +4019,10 @@ static void pgraph_method(NV2AState *d,
         SET_MASK(pg->regs[NV_PGRAPH_CONTROL_0], NV_PGRAPH_CONTROL_0_ZENABLE,
                  parameter);
         break;
+    case NV097_SET_SKIN_MODE:
+        SET_MASK(pg->regs[NV_PGRAPH_CSV0_D], NV_PGRAPH_CSV0_D_SKIN,
+                 parameter);
+        break;
     case NV097_SET_STENCIL_TEST_ENABLE:
         SET_MASK(pg->regs[NV_PGRAPH_CONTROL_1],
                  NV_PGRAPH_CONTROL_1_STENCIL_TEST_ENABLE, parameter);
diff --git a/hw/xbox/nv2a_vsh.h b/hw/xbox/nv2a_vsh.h
index b64ff11536..c41069ee30 100644
--- a/hw/xbox/nv2a_vsh.h
+++ b/hw/xbox/nv2a_vsh.h
@@ -33,6 +33,16 @@ enum Texgen {
     TEXGEN_REFLECTION_MAP,
 };
 
+enum Skinning {
+    SKINNING_OFF,
+    SKINNING_1WEIGHTS,
+    SKINNING_2WEIGHTS,
+    SKINNING_3WEIGHTS,
+    SKINNING_2WEIGHTS2MATRICES,
+    SKINNING_3WEIGHTS3MATRICES,
+    SKINNING_4WEIGHTS4MATRICES,
+};
+
 // vs.1.1, not an official value
 #define VSH_VERSION_VS                     0xF078