commit a1f4dfe4e37e8d18a444ccf3cf333550659b57d3
author Ivan Gyurdiev <ivg231@gmail.com> Mon Jun 12 02:57:07 2006 -0400
committer Alexandre Julliard <julliard@winehq.org> Tue Jun 13 11:40:22 2006 +0200
tree 50f2730a38bf5d45cc4af4e8ca632ed3ec7ece4f
parent 1a3003338f2f216c82df19a832297e17f0f5f318

wined3d: Add support for shader model 3.0 I/O registers.

SM 3.0 can pack multiple "semantics" into 12 generic input/output registers.

To support that, define temporaries called IN and OUT, and use those as
the output registers. At the end of the vshader, unpack the OUT temps
into the proper GL variables. At the beginning of the pshader, pack the
GL variables back into 12 IN registers.

dlls/wined3d/wined3d_private.h

diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index ff81628..8b86d95 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1251,6 +1251,8 @@
 #define MAX_REG_ADDR 1
 #define MAX_REG_TEMP 32
 #define MAX_REG_TEXCRD 8
+#define MAX_REG_INPUT 12
+#define MAX_REG_OUTPUT 12
 #define MAX_ATTRIBS 16
 #define MAX_CONST_F 256
 
@@ -1259,6 +1261,8 @@
     char texcoord[MAX_REG_TEXCRD];          /* pixel < 3.0 */
     char temporary[MAX_REG_TEMP];           /* pixel, vertex */
     char address[MAX_REG_ADDR];             /* vertex */
+    char packed_input[MAX_REG_INPUT];       /* pshader >= 3.0 */
+    char packed_output[MAX_REG_OUTPUT];     /* vertex >= 3.0 */
     char attributes[MAX_ATTRIBS];           /* vertex */
 
     char constantsF[MAX_CONST_F];           /* pixel, vertex */
@@ -1307,6 +1311,8 @@
     unsigned int constant_float;
     unsigned int constant_bool;
     unsigned int address;
+    unsigned int packed_output;
+    unsigned int packed_input;
     unsigned int attributes;
 } SHADER_LIMITS;
 
@@ -1346,11 +1352,20 @@
 extern void shader_glsl_compare(SHADER_OPCODE_ARG* arg);
 extern void shader_glsl_def(SHADER_OPCODE_ARG* arg);
 extern void shader_glsl_cmp(SHADER_OPCODE_ARG* arg);
+
 /** GLSL Pixel Shader Prototypes */
 extern void pshader_glsl_tex(SHADER_OPCODE_ARG* arg);
 extern void pshader_glsl_texcoord(SHADER_OPCODE_ARG* arg);
 extern void pshader_glsl_texm3x2pad(SHADER_OPCODE_ARG* arg);
 extern void pshader_glsl_texm3x2tex(SHADER_OPCODE_ARG* arg);
+extern void pshader_glsl_input_pack(
+   SHADER_BUFFER* buffer,
+   DWORD* semantics_out);
+
+/** GLSL Vertex Shader Prototypes */
+extern void vshader_glsl_output_unpack(
+   SHADER_BUFFER* buffer,
+   DWORD* semantics_out);
 
 /*****************************************************************************
  * IDirect3DBaseShader implementation structure