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1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *    Gareth Hughes
26  */
27 
28 /*
29  * This generates an asm version of mtypes.h (called matypes.h), so that
30  * Mesa's x86 assembly code can access the internal structures easily.
31  * This will be particularly useful when developing new x86 asm code for
32  * Mesa, including lighting, clipping, texture image conversion etc.
33  */
34 
35 #include <stdio.h>
36 #include <inttypes.h>
37 
38 #include "main/glheader.h"
39 #include "main/mtypes.h"
40 #include "tnl/t_context.h"
41 
42 
43 #undef offsetof
44 #define offsetof( type, member ) ((size_t) &((type *)0)->member)
45 
46 
47 #define OFFSET_HEADER( x )						\
48 do {									\
49    printf( "\n" );							\
50    printf( "\n" );							\
51    printf( "/* ====================================================="	\
52 	   "========\n" );						\
53    printf( " * Offsets for " x "\n" );					\
54    printf( " */\n" );							\
55    printf( "\n" );							\
56 } while (0)
57 
58 #define DEFINE_HEADER( x )						\
59 do {									\
60    printf( "\n" );							\
61    printf( "/*\n" );							\
62    printf( " * Flags for " x "\n" );					\
63    printf( " */\n" );							\
64    printf( "\n" );							\
65 } while (0)
66 
67 #ifdef ASM_OFFSETS
68 
69 /*
70  * Format the asm output in a special way that we can manipulate
71  * after the fact and turn into the final header for the target.
72  */
73 
74 #define DEFINE_UL( s, ul )						\
75    __asm__ __volatile__ ( "\n->" s " %0" : : "i" (ul) )
76 
77 #define DEFINE( s, d )							\
78    DEFINE_UL( s, d )
79 
80 #define printf( x )							\
81    __asm__ __volatile__ ( "\n->" x )
82 
83 #else
84 
85 #define DEFINE_UL( s, ul )						\
86    printf( "#define %s\t%lu\n", s, (unsigned long) (ul) );
87 
88 #define DEFINE( s, d )							\
89    printf( "#define %s\t0x%" PRIx64 "\n", s, (uint64_t) d );
90 
91 #endif
92 
93 #define OFFSET( s, t, m )						\
94    DEFINE_UL( s, offsetof( t, m ) )
95 
96 #define SIZEOF( s, t )							\
97    DEFINE_UL( s, sizeof(t) )
98 
99 
100 
main(int argc,char ** argv)101 int main( int argc, char **argv )
102 {
103    printf( "/*\n" );
104    printf( " * This file is automatically generated from the Mesa internal type\n" );
105    printf( " * definitions.  Do not edit directly.\n" );
106    printf( " */\n" );
107    printf( "\n" );
108    printf( "#ifndef __ASM_TYPES_H__\n" );
109    printf( "#define __ASM_TYPES_H__\n" );
110    printf( "\n" );
111 
112 
113    /* struct gl_context offsets:
114     */
115    OFFSET_HEADER( "struct gl_context" );
116 
117    printf( "\n" );
118    OFFSET( "CTX_LIGHT_ENABLED           ", struct gl_context, Light.Enabled );
119    OFFSET( "CTX_LIGHT_SHADE_MODEL       ", struct gl_context, Light.ShadeModel );
120    OFFSET( "CTX_LIGHT_COLOR_MAT_FACE    ", struct gl_context, Light.ColorMaterialFace );
121    OFFSET( "CTX_LIGHT_COLOR_MAT_MODE    ", struct gl_context, Light.ColorMaterialMode );
122    OFFSET( "CTX_LIGHT_COLOR_MAT_MASK    ", struct gl_context, Light._ColorMaterialBitmask );
123    OFFSET( "CTX_LIGHT_COLOR_MAT_ENABLED ", struct gl_context, Light.ColorMaterialEnabled );
124    OFFSET( "CTX_LIGHT_ENABLED_LIGHTS    ", struct gl_context, Light._EnabledLights );
125    OFFSET( "CTX_LIGHT_NEED_VERTS        ", struct gl_context, Light._NeedVertices );
126    OFFSET( "CTX_LIGHT_BASE_COLOR        ", struct gl_context, Light._BaseColor );
127 
128 
129    /* struct vertex_buffer offsets:
130     */
131    OFFSET_HEADER( "struct vertex_buffer" );
132 
133    OFFSET( "VB_SIZE                ", struct vertex_buffer, Size );
134    OFFSET( "VB_COUNT               ", struct vertex_buffer, Count );
135    printf( "\n" );
136    OFFSET( "VB_ELTS                ", struct vertex_buffer, Elts );
137    OFFSET( "VB_OBJ_PTR             ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_POS] );
138    OFFSET( "VB_EYE_PTR             ", struct vertex_buffer, EyePtr );
139    OFFSET( "VB_CLIP_PTR            ", struct vertex_buffer, ClipPtr );
140    OFFSET( "VB_PROJ_CLIP_PTR       ", struct vertex_buffer, NdcPtr );
141    OFFSET( "VB_CLIP_OR_MASK        ", struct vertex_buffer, ClipOrMask );
142    OFFSET( "VB_CLIP_MASK           ", struct vertex_buffer, ClipMask );
143    OFFSET( "VB_NORMAL_PTR          ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_NORMAL] );
144    OFFSET( "VB_EDGE_FLAG           ", struct vertex_buffer, EdgeFlag );
145    OFFSET( "VB_TEX0_COORD_PTR      ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_TEX0] );
146    OFFSET( "VB_TEX1_COORD_PTR      ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_TEX1] );
147    OFFSET( "VB_TEX2_COORD_PTR      ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_TEX2] );
148    OFFSET( "VB_TEX3_COORD_PTR      ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_TEX3] );
149    OFFSET( "VB_INDEX_PTR           ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_COLOR_INDEX] );
150    OFFSET( "VB_COLOR_PTR           ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_COLOR0] );
151    OFFSET( "VB_SECONDARY_COLOR_PTR ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_COLOR1] );
152    OFFSET( "VB_FOG_COORD_PTR       ", struct vertex_buffer, AttribPtr[_TNL_ATTRIB_FOG] );
153    OFFSET( "VB_PRIMITIVE           ", struct vertex_buffer, Primitive );
154    printf( "\n" );
155 
156    DEFINE_HEADER( "struct vertex_buffer" );
157 
158    /* XXX use new labels here someday after vertex proram is done */
159    DEFINE( "VERT_BIT_OBJ           ", VERT_BIT_POS );
160    DEFINE( "VERT_BIT_NORM          ", VERT_BIT_NORMAL );
161    DEFINE( "VERT_BIT_RGBA          ", VERT_BIT_COLOR0 );
162    DEFINE( "VERT_BIT_SPEC_RGB      ", VERT_BIT_COLOR1 );
163    DEFINE( "VERT_BIT_FOG_COORD     ", VERT_BIT_FOG );
164    DEFINE( "VERT_BIT_TEX0          ", VERT_BIT_TEX0 );
165    DEFINE( "VERT_BIT_TEX1          ", VERT_BIT_TEX1 );
166    DEFINE( "VERT_BIT_TEX2          ", VERT_BIT_TEX2 );
167    DEFINE( "VERT_BIT_TEX3          ", VERT_BIT_TEX3 );
168 
169 
170    /* GLvector4f offsets:
171     */
172    OFFSET_HEADER( "GLvector4f" );
173 
174    OFFSET( "V4F_DATA          ", GLvector4f, data );
175    OFFSET( "V4F_START         ", GLvector4f, start );
176    OFFSET( "V4F_COUNT         ", GLvector4f, count );
177    OFFSET( "V4F_STRIDE        ", GLvector4f, stride );
178    OFFSET( "V4F_SIZE          ", GLvector4f, size );
179    OFFSET( "V4F_FLAGS         ", GLvector4f, flags );
180 
181    DEFINE_HEADER( "GLvector4f" );
182 
183    DEFINE( "VEC_MALLOC        ", VEC_MALLOC );
184    DEFINE( "VEC_NOT_WRITEABLE ", VEC_NOT_WRITEABLE );
185    DEFINE( "VEC_BAD_STRIDE    ", VEC_BAD_STRIDE );
186    printf( "\n" );
187    DEFINE( "VEC_SIZE_1        ", VEC_SIZE_1 );
188    DEFINE( "VEC_SIZE_2        ", VEC_SIZE_2 );
189    DEFINE( "VEC_SIZE_3        ", VEC_SIZE_3 );
190    DEFINE( "VEC_SIZE_4        ", VEC_SIZE_4 );
191 
192 
193    /* GLmatrix offsets:
194     */
195    OFFSET_HEADER( "GLmatrix" );
196 
197    OFFSET( "MATRIX_DATA   ", GLmatrix, m );
198    OFFSET( "MATRIX_INV    ", GLmatrix, inv );
199    OFFSET( "MATRIX_FLAGS  ", GLmatrix, flags );
200    OFFSET( "MATRIX_TYPE   ", GLmatrix, type );
201 
202 
203    /* struct gl_light offsets:
204     */
205    OFFSET_HEADER( "struct gl_light" );
206 
207    printf( "\n" );
208    OFFSET( "LIGHT_AMBIENT           ", struct gl_light, Ambient );
209    OFFSET( "LIGHT_DIFFUSE           ", struct gl_light, Diffuse );
210    OFFSET( "LIGHT_SPECULAR          ", struct gl_light, Specular );
211    OFFSET( "LIGHT_EYE_POSITION      ", struct gl_light, EyePosition );
212    OFFSET( "LIGHT_SPOT_DIRECTION    ", struct gl_light, SpotDirection );
213    OFFSET( "LIGHT_SPOT_EXPONENT     ", struct gl_light, SpotExponent );
214    OFFSET( "LIGHT_SPOT_CUTOFF       ", struct gl_light, SpotCutoff );
215    OFFSET( "LIGHT_COS_CUTOFF        ", struct gl_light, _CosCutoff );
216    OFFSET( "LIGHT_CONST_ATTEN       ", struct gl_light, ConstantAttenuation );
217    OFFSET( "LIGHT_LINEAR_ATTEN      ", struct gl_light, LinearAttenuation );
218    OFFSET( "LIGHT_QUADRATIC_ATTEN   ", struct gl_light, QuadraticAttenuation );
219    OFFSET( "LIGHT_ENABLED           ", struct gl_light, Enabled );
220    printf( "\n" );
221    OFFSET( "LIGHT_FLAGS             ", struct gl_light, _Flags );
222    printf( "\n" );
223    OFFSET( "LIGHT_POSITION          ", struct gl_light, _Position );
224    OFFSET( "LIGHT_VP_INF_NORM       ", struct gl_light, _VP_inf_norm );
225    OFFSET( "LIGHT_H_INF_NORM        ", struct gl_light, _h_inf_norm );
226    OFFSET( "LIGHT_NORM_DIRECTION    ", struct gl_light, _NormSpotDirection );
227    OFFSET( "LIGHT_VP_INF_SPOT_ATTEN ", struct gl_light, _VP_inf_spot_attenuation );
228    printf( "\n" );
229    OFFSET( "LIGHT_MAT_AMBIENT       ", struct gl_light, _MatAmbient );
230    OFFSET( "LIGHT_MAT_DIFFUSE       ", struct gl_light, _MatDiffuse );
231    OFFSET( "LIGHT_MAT_SPECULAR      ", struct gl_light, _MatSpecular );
232    printf( "\n" );
233    SIZEOF( "SIZEOF_GL_LIGHT         ", struct gl_light );
234 
235    DEFINE_HEADER( "struct gl_light" );
236 
237    DEFINE( "LIGHT_SPOT              ", LIGHT_SPOT );
238    DEFINE( "LIGHT_LOCAL_VIEWER      ", LIGHT_LOCAL_VIEWER );
239    DEFINE( "LIGHT_POSITIONAL        ", LIGHT_POSITIONAL );
240    printf( "\n" );
241    DEFINE( "LIGHT_NEED_VERTICES     ", LIGHT_NEED_VERTICES );
242 
243 
244    /* struct gl_lightmodel offsets:
245     */
246    OFFSET_HEADER( "struct gl_lightmodel" );
247 
248    OFFSET( "LIGHT_MODEL_AMBIENT       ", struct gl_lightmodel, Ambient );
249    OFFSET( "LIGHT_MODEL_LOCAL_VIEWER  ", struct gl_lightmodel, LocalViewer );
250    OFFSET( "LIGHT_MODEL_TWO_SIDE      ", struct gl_lightmodel, TwoSide );
251    OFFSET( "LIGHT_MODEL_COLOR_CONTROL ", struct gl_lightmodel, ColorControl );
252 
253 
254    printf( "\n" );
255    printf( "\n" );
256    printf( "#endif /* __ASM_TYPES_H__ */\n" );
257 
258    return 0;
259 }
260