Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1901 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
||
3 | * Version: 7.1 |
||
4 | * |
||
5 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
||
6 | * |
||
7 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
8 | * copy of this software and associated documentation files (the "Software"), |
||
9 | * to deal in the Software without restriction, including without limitation |
||
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
11 | * and/or sell copies of the Software, and to permit persons to whom the |
||
12 | * Software is furnished to do so, subject to the following conditions: |
||
13 | * |
||
14 | * The above copyright notice and this permission notice shall be included |
||
15 | * in all copies or substantial portions of the Software. |
||
16 | * |
||
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
||
21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
||
22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
23 | * |
||
24 | * Authors: |
||
25 | * Keith Whitwell |
||
26 | */ |
||
27 | |||
28 | #include "main/glheader.h" |
||
29 | #include "main/imports.h" |
||
30 | #include "main/colormac.h" |
||
31 | #include "tnl/tnl.h" |
||
32 | #include "tnl/t_context.h" |
||
33 | #include "tnl/t_pipeline.h" |
||
34 | #include "tnl/t_vertex.h" |
||
35 | #include "swrast_setup.h" |
||
36 | #include "ss_context.h" |
||
37 | #include "ss_triangle.h" |
||
38 | |||
39 | |||
40 | /* Need to check lighting state and vertex program state to know |
||
41 | * if two-sided lighting is in effect. |
||
42 | */ |
||
43 | #define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT|_NEW_PROGRAM) |
||
44 | |||
45 | |||
46 | #define VARYING_EMIT_STYLE EMIT_4F |
||
47 | |||
48 | |||
49 | GLboolean |
||
50 | _swsetup_CreateContext( struct gl_context *ctx ) |
||
51 | { |
||
52 | SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext)); |
||
53 | |||
54 | if (!swsetup) |
||
55 | return GL_FALSE; |
||
56 | |||
57 | ctx->swsetup_context = swsetup; |
||
58 | |||
59 | swsetup->NewState = ~0; |
||
60 | _swsetup_trifuncs_init( ctx ); |
||
61 | |||
62 | _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, |
||
63 | sizeof(SWvertex) ); |
||
64 | |||
65 | |||
66 | return GL_TRUE; |
||
67 | } |
||
68 | |||
69 | void |
||
70 | _swsetup_DestroyContext( struct gl_context *ctx ) |
||
71 | { |
||
72 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
||
73 | |||
74 | if (swsetup) { |
||
75 | FREE(swsetup); |
||
76 | ctx->swsetup_context = 0; |
||
77 | } |
||
78 | |||
79 | _tnl_free_vertices( ctx ); |
||
80 | } |
||
81 | |||
82 | static void |
||
83 | _swsetup_RenderPrimitive( struct gl_context *ctx, GLenum mode ) |
||
84 | { |
||
85 | SWSETUP_CONTEXT(ctx)->render_prim = mode; |
||
86 | _swrast_render_primitive( ctx, mode ); |
||
87 | } |
||
88 | |||
89 | |||
90 | /** |
||
91 | * Helper macros for setup_vertex_format() |
||
92 | */ |
||
93 | #define SWZ ((SWvertex *)0) |
||
94 | #define SWOffset(MEMBER) (((char *)&(SWZ->MEMBER)) - ((char *)SWZ)) |
||
95 | |||
96 | #define EMIT_ATTR( ATTR, STYLE, MEMBER ) \ |
||
97 | do { \ |
||
98 | map[e].attrib = (ATTR); \ |
||
99 | map[e].format = (STYLE); \ |
||
100 | map[e].offset = SWOffset(MEMBER); \ |
||
101 | e++; \ |
||
102 | } while (0) |
||
103 | |||
104 | |||
105 | /** |
||
106 | * Tell the tnl module how to build SWvertex objects for swrast. |
||
107 | * We'll build the map[] array with that info and pass it to |
||
108 | * _tnl_install_attrs(). |
||
109 | */ |
||
110 | static void |
||
111 | setup_vertex_format(struct gl_context *ctx) |
||
112 | { |
||
113 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
||
114 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
||
115 | GLboolean intColors = !ctx->FragmentProgram._Current |
||
116 | && !ctx->ATIFragmentShader._Enabled |
||
117 | && ctx->RenderMode == GL_RENDER |
||
118 | && CHAN_TYPE != GL_FLOAT; |
||
119 | |||
120 | if (intColors != swsetup->intColors || |
||
121 | !RENDERINPUTS_EQUAL(tnl->render_inputs_bitset, |
||
122 | swsetup->last_index_bitset)) { |
||
123 | DECLARE_RENDERINPUTS(index_bitset); |
||
124 | struct tnl_attr_map map[_TNL_ATTRIB_MAX]; |
||
125 | unsigned int i, e = 0; |
||
126 | |||
127 | swsetup->intColors = intColors; |
||
128 | |||
129 | RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset ); |
||
130 | |||
131 | EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[FRAG_ATTRIB_WPOS] ); |
||
132 | |||
133 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR0 )) { |
||
134 | if (swsetup->intColors) |
||
135 | EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color ); |
||
136 | else |
||
137 | EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[FRAG_ATTRIB_COL0]); |
||
138 | } |
||
139 | |||
140 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) { |
||
141 | EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[FRAG_ATTRIB_COL1]); |
||
142 | } |
||
143 | |||
144 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) { |
||
145 | const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F; |
||
146 | EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[FRAG_ATTRIB_FOGC]); |
||
147 | } |
||
148 | |||
149 | if (RENDERINPUTS_TEST_RANGE(index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX)) |
||
150 | { |
||
151 | for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { |
||
152 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX(i) )) { |
||
153 | EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F, |
||
154 | attrib[FRAG_ATTRIB_TEX0 + i] ); |
||
155 | } |
||
156 | } |
||
157 | } |
||
158 | |||
159 | /* shader varying vars */ |
||
160 | if (RENDERINPUTS_TEST_RANGE( index_bitset, |
||
161 | _TNL_FIRST_GENERIC, _TNL_LAST_GENERIC )) { |
||
162 | for (i = 0; i < ctx->Const.MaxVarying; i++) { |
||
163 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_GENERIC(i) )) { |
||
164 | EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE, |
||
165 | attrib[FRAG_ATTRIB_VAR0 + i] ); |
||
166 | } |
||
167 | } |
||
168 | } |
||
169 | |||
170 | if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_POINTSIZE )) |
||
171 | EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize ); |
||
172 | |||
173 | _tnl_install_attrs( ctx, map, e, |
||
174 | ctx->Viewport._WindowMap.m, |
||
175 | sizeof(SWvertex) ); |
||
176 | |||
177 | RENDERINPUTS_COPY( swsetup->last_index_bitset, index_bitset ); |
||
178 | } |
||
179 | } |
||
180 | |||
181 | |||
182 | /** |
||
183 | * Prepare to render a vertex buffer. |
||
184 | * Called via tnl->Driver.Render.Start. |
||
185 | */ |
||
186 | static void |
||
187 | _swsetup_RenderStart( struct gl_context *ctx ) |
||
188 | { |
||
189 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
||
190 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
||
191 | struct vertex_buffer *VB = &tnl->vb; |
||
192 | |||
193 | if (swsetup->NewState & _SWSETUP_NEW_RENDERINDEX) { |
||
194 | _swsetup_choose_trifuncs(ctx); |
||
195 | } |
||
196 | |||
197 | if (swsetup->NewState & _NEW_PROGRAM) { |
||
198 | RENDERINPUTS_ZERO( swsetup->last_index_bitset ); |
||
199 | } |
||
200 | |||
201 | swsetup->NewState = 0; |
||
202 | |||
203 | /* This will change if drawing unfilled tris */ |
||
204 | _swrast_SetFacing(ctx, 0); |
||
205 | |||
206 | _swrast_render_start(ctx); |
||
207 | |||
208 | /* Important */ |
||
209 | VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; |
||
210 | |||
211 | setup_vertex_format(ctx); |
||
212 | } |
||
213 | |||
214 | |||
215 | /* |
||
216 | * We patch this function into tnl->Driver.Render.Finish. |
||
217 | * It's called when we finish rendering a vertex buffer. |
||
218 | */ |
||
219 | static void |
||
220 | _swsetup_RenderFinish( struct gl_context *ctx ) |
||
221 | { |
||
222 | _swrast_render_finish( ctx ); |
||
223 | } |
||
224 | |||
225 | void |
||
226 | _swsetup_InvalidateState( struct gl_context *ctx, GLuint new_state ) |
||
227 | { |
||
228 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
||
229 | swsetup->NewState |= new_state; |
||
230 | _tnl_invalidate_vertex_state( ctx, new_state ); |
||
231 | } |
||
232 | |||
233 | |||
234 | void |
||
235 | _swsetup_Wakeup( struct gl_context *ctx ) |
||
236 | { |
||
237 | TNLcontext *tnl = TNL_CONTEXT(ctx); |
||
238 | SScontext *swsetup = SWSETUP_CONTEXT(ctx); |
||
239 | |||
240 | tnl->Driver.Render.Start = _swsetup_RenderStart; |
||
241 | tnl->Driver.Render.Finish = _swsetup_RenderFinish; |
||
242 | tnl->Driver.Render.PrimitiveNotify = _swsetup_RenderPrimitive; |
||
243 | tnl->Driver.Render.Interp = _tnl_interp; |
||
244 | tnl->Driver.Render.CopyPV = _tnl_copy_pv; |
||
245 | tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; /* new */ |
||
246 | tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine; /* new */ |
||
247 | /* points */ |
||
248 | /* line */ |
||
249 | /* triangle */ |
||
250 | /* quad */ |
||
251 | tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; |
||
252 | tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; |
||
253 | tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; |
||
254 | tnl->Driver.Render.BuildVertices = _tnl_build_vertices; |
||
255 | tnl->Driver.Render.Multipass = 0; |
||
256 | |||
257 | _tnl_invalidate_vertices( ctx, ~0 ); |
||
258 | _tnl_need_projected_coords( ctx, GL_TRUE ); |
||
259 | _swsetup_InvalidateState( ctx, ~0 ); |
||
260 | |||
261 | swsetup->verts = (SWvertex *)tnl->clipspace.vertex_buf; |
||
262 | RENDERINPUTS_ZERO( swsetup->last_index_bitset ); |
||
263 | } |
||
264 | |||
265 | |||
266 | /** |
||
267 | * Populate a swrast SWvertex from an attrib-style vertex. |
||
268 | */ |
||
269 | void |
||
270 | _swsetup_Translate( struct gl_context *ctx, const void *vertex, SWvertex *dest ) |
||
271 | { |
||
272 | const GLfloat *m = ctx->Viewport._WindowMap.m; |
||
273 | GLfloat tmp[4]; |
||
274 | GLuint i; |
||
275 | |||
276 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POS, tmp ); |
||
277 | |||
278 | dest->attrib[FRAG_ATTRIB_WPOS][0] = m[0] * tmp[0] + m[12]; |
||
279 | dest->attrib[FRAG_ATTRIB_WPOS][1] = m[5] * tmp[1] + m[13]; |
||
280 | dest->attrib[FRAG_ATTRIB_WPOS][2] = m[10] * tmp[2] + m[14]; |
||
281 | dest->attrib[FRAG_ATTRIB_WPOS][3] = tmp[3]; |
||
282 | |||
283 | /** XXX try to limit these loops someday */ |
||
284 | for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) |
||
285 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_TEX0 + i, |
||
286 | dest->attrib[FRAG_ATTRIB_TEX0 + i] ); |
||
287 | |||
288 | for (i = 0 ; i < ctx->Const.MaxVarying ; i++) |
||
289 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_GENERIC0 + i, |
||
290 | dest->attrib[FRAG_ATTRIB_VAR0 + i] ); |
||
291 | |||
292 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR0, |
||
293 | dest->attrib[FRAG_ATTRIB_COL0] ); |
||
294 | UNCLAMPED_FLOAT_TO_RGBA_CHAN( dest->color, tmp ); |
||
295 | |||
296 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR1, |
||
297 | dest->attrib[FRAG_ATTRIB_COL1]); |
||
298 | |||
299 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_FOG, tmp ); |
||
300 | dest->attrib[FRAG_ATTRIB_FOGC][0] = tmp[0]; |
||
301 | |||
302 | /* XXX See _tnl_get_attr about pointsize ... */ |
||
303 | _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POINTSIZE, tmp ); |
||
304 | dest->pointSize = tmp[0]; |
||
305 | }>>>> |
||
306 |