2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
28 * Raster position operations.
37 #include "glapi/dispatch.h"
44 * Helper function for all the RasterPos functions.
47 rasterpos(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
49 GET_CURRENT_CONTEXT(ctx);
57 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
58 FLUSH_CURRENT(ctx, 0);
61 _mesa_update_state( ctx );
63 ctx->Driver.RasterPos(ctx, p);
67 static void GLAPIENTRY
68 _mesa_RasterPos2d(GLdouble x, GLdouble y)
70 rasterpos((GLfloat)x, (GLfloat)y, (GLfloat)0.0, (GLfloat)1.0);
73 static void GLAPIENTRY
74 _mesa_RasterPos2f(GLfloat x, GLfloat y)
76 rasterpos(x, y, 0.0F, 1.0F);
79 static void GLAPIENTRY
80 _mesa_RasterPos2i(GLint x, GLint y)
82 rasterpos((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
85 static void GLAPIENTRY
86 _mesa_RasterPos2s(GLshort x, GLshort y)
88 rasterpos(x, y, 0.0F, 1.0F);
91 static void GLAPIENTRY
92 _mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z)
94 rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
97 static void GLAPIENTRY
98 _mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z)
100 rasterpos(x, y, z, 1.0F);
103 static void GLAPIENTRY
104 _mesa_RasterPos3i(GLint x, GLint y, GLint z)
106 rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
109 static void GLAPIENTRY
110 _mesa_RasterPos3s(GLshort x, GLshort y, GLshort z)
112 rasterpos(x, y, z, 1.0F);
115 static void GLAPIENTRY
116 _mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w)
118 rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
121 static void GLAPIENTRY
122 _mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
124 rasterpos(x, y, z, w);
127 static void GLAPIENTRY
128 _mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w)
130 rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
133 static void GLAPIENTRY
134 _mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w)
136 rasterpos(x, y, z, w);
139 static void GLAPIENTRY
140 _mesa_RasterPos2dv(const GLdouble *v)
142 rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
145 static void GLAPIENTRY
146 _mesa_RasterPos2fv(const GLfloat *v)
148 rasterpos(v[0], v[1], 0.0F, 1.0F);
151 static void GLAPIENTRY
152 _mesa_RasterPos2iv(const GLint *v)
154 rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
157 static void GLAPIENTRY
158 _mesa_RasterPos2sv(const GLshort *v)
160 rasterpos(v[0], v[1], 0.0F, 1.0F);
163 static void GLAPIENTRY
164 _mesa_RasterPos3dv(const GLdouble *v)
166 rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
169 static void GLAPIENTRY
170 _mesa_RasterPos3fv(const GLfloat *v)
172 rasterpos(v[0], v[1], v[2], 1.0F);
175 static void GLAPIENTRY
176 _mesa_RasterPos3iv(const GLint *v)
178 rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
181 static void GLAPIENTRY
182 _mesa_RasterPos3sv(const GLshort *v)
184 rasterpos(v[0], v[1], v[2], 1.0F);
187 static void GLAPIENTRY
188 _mesa_RasterPos4dv(const GLdouble *v)
190 rasterpos((GLfloat) v[0], (GLfloat) v[1],
191 (GLfloat) v[2], (GLfloat) v[3]);
194 static void GLAPIENTRY
195 _mesa_RasterPos4fv(const GLfloat *v)
197 rasterpos(v[0], v[1], v[2], v[3]);
200 static void GLAPIENTRY
201 _mesa_RasterPos4iv(const GLint *v)
203 rasterpos((GLfloat) v[0], (GLfloat) v[1],
204 (GLfloat) v[2], (GLfloat) v[3]);
207 static void GLAPIENTRY
208 _mesa_RasterPos4sv(const GLshort *v)
210 rasterpos(v[0], v[1], v[2], v[3]);
214 /**********************************************************************/
215 /*** GL_ARB_window_pos / GL_MESA_window_pos ***/
216 /**********************************************************************/
220 * All glWindowPosMESA and glWindowPosARB commands call this function to
221 * update the current raster position.
224 window_pos3f(GLfloat x, GLfloat y, GLfloat z)
226 GET_CURRENT_CONTEXT(ctx);
229 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
230 FLUSH_CURRENT(ctx, 0);
232 z2 = CLAMP(z, 0.0F, 1.0F) * (ctx->Viewport.Far - ctx->Viewport.Near)
233 + ctx->Viewport.Near;
235 /* set raster position */
236 ctx->Current.RasterPos[0] = x;
237 ctx->Current.RasterPos[1] = y;
238 ctx->Current.RasterPos[2] = z2;
239 ctx->Current.RasterPos[3] = 1.0F;
241 ctx->Current.RasterPosValid = GL_TRUE;
243 if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
244 ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0];
246 ctx->Current.RasterDistance = 0.0;
248 /* raster color = current color or index */
249 if (ctx->Visual.rgbMode) {
250 ctx->Current.RasterColor[0]
251 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][0], 0.0F, 1.0F);
252 ctx->Current.RasterColor[1]
253 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][1], 0.0F, 1.0F);
254 ctx->Current.RasterColor[2]
255 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][2], 0.0F, 1.0F);
256 ctx->Current.RasterColor[3]
257 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][3], 0.0F, 1.0F);
258 ctx->Current.RasterSecondaryColor[0]
259 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][0], 0.0F, 1.0F);
260 ctx->Current.RasterSecondaryColor[1]
261 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][1], 0.0F, 1.0F);
262 ctx->Current.RasterSecondaryColor[2]
263 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][2], 0.0F, 1.0F);
264 ctx->Current.RasterSecondaryColor[3]
265 = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][3], 0.0F, 1.0F);
268 ctx->Current.RasterIndex
269 = ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0];
272 /* raster texcoord = current texcoord */
275 for (texSet = 0; texSet < ctx->Const.MaxTextureCoordUnits; texSet++) {
276 COPY_4FV( ctx->Current.RasterTexCoords[texSet],
277 ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texSet] );
281 if (ctx->RenderMode==GL_SELECT) {
282 _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
287 /* This is just to support the GL_MESA_window_pos version */
289 window_pos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
291 GET_CURRENT_CONTEXT(ctx);
292 window_pos3f(x, y, z);
293 ctx->Current.RasterPos[3] = w;
297 static void GLAPIENTRY
298 _mesa_WindowPos2dMESA(GLdouble x, GLdouble y)
300 window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
303 static void GLAPIENTRY
304 _mesa_WindowPos2fMESA(GLfloat x, GLfloat y)
306 window_pos4f(x, y, 0.0F, 1.0F);
309 static void GLAPIENTRY
310 _mesa_WindowPos2iMESA(GLint x, GLint y)
312 window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
315 static void GLAPIENTRY
316 _mesa_WindowPos2sMESA(GLshort x, GLshort y)
318 window_pos4f(x, y, 0.0F, 1.0F);
321 static void GLAPIENTRY
322 _mesa_WindowPos3dMESA(GLdouble x, GLdouble y, GLdouble z)
324 window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
327 static void GLAPIENTRY
328 _mesa_WindowPos3fMESA(GLfloat x, GLfloat y, GLfloat z)
330 window_pos4f(x, y, z, 1.0F);
333 static void GLAPIENTRY
334 _mesa_WindowPos3iMESA(GLint x, GLint y, GLint z)
336 window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
339 static void GLAPIENTRY
340 _mesa_WindowPos3sMESA(GLshort x, GLshort y, GLshort z)
342 window_pos4f(x, y, z, 1.0F);
345 static void GLAPIENTRY
346 _mesa_WindowPos4dMESA(GLdouble x, GLdouble y, GLdouble z, GLdouble w)
348 window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
351 static void GLAPIENTRY
352 _mesa_WindowPos4fMESA(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
354 window_pos4f(x, y, z, w);
357 static void GLAPIENTRY
358 _mesa_WindowPos4iMESA(GLint x, GLint y, GLint z, GLint w)
360 window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
363 static void GLAPIENTRY
364 _mesa_WindowPos4sMESA(GLshort x, GLshort y, GLshort z, GLshort w)
366 window_pos4f(x, y, z, w);
369 static void GLAPIENTRY
370 _mesa_WindowPos2dvMESA(const GLdouble *v)
372 window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
375 static void GLAPIENTRY
376 _mesa_WindowPos2fvMESA(const GLfloat *v)
378 window_pos4f(v[0], v[1], 0.0F, 1.0F);
381 static void GLAPIENTRY
382 _mesa_WindowPos2ivMESA(const GLint *v)
384 window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
387 static void GLAPIENTRY
388 _mesa_WindowPos2svMESA(const GLshort *v)
390 window_pos4f(v[0], v[1], 0.0F, 1.0F);
393 static void GLAPIENTRY
394 _mesa_WindowPos3dvMESA(const GLdouble *v)
396 window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
399 static void GLAPIENTRY
400 _mesa_WindowPos3fvMESA(const GLfloat *v)
402 window_pos4f(v[0], v[1], v[2], 1.0);
405 static void GLAPIENTRY
406 _mesa_WindowPos3ivMESA(const GLint *v)
408 window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
411 static void GLAPIENTRY
412 _mesa_WindowPos3svMESA(const GLshort *v)
414 window_pos4f(v[0], v[1], v[2], 1.0F);
417 static void GLAPIENTRY
418 _mesa_WindowPos4dvMESA(const GLdouble *v)
420 window_pos4f((GLfloat) v[0], (GLfloat) v[1],
421 (GLfloat) v[2], (GLfloat) v[3]);
424 static void GLAPIENTRY
425 _mesa_WindowPos4fvMESA(const GLfloat *v)
427 window_pos4f(v[0], v[1], v[2], v[3]);
430 static void GLAPIENTRY
431 _mesa_WindowPos4ivMESA(const GLint *v)
433 window_pos4f((GLfloat) v[0], (GLfloat) v[1],
434 (GLfloat) v[2], (GLfloat) v[3]);
437 static void GLAPIENTRY
438 _mesa_WindowPos4svMESA(const GLshort *v)
440 window_pos4f(v[0], v[1], v[2], v[3]);
447 * OpenGL implementation of glWindowPos*MESA()
449 void glWindowPos4fMESA( GLfloat x, GLfloat y, GLfloat z, GLfloat w )
453 /* Push current matrix mode and viewport attributes */
454 glPushAttrib( GL_TRANSFORM_BIT | GL_VIEWPORT_BIT );
456 /* Setup projection parameters */
457 glMatrixMode( GL_PROJECTION );
460 glMatrixMode( GL_MODELVIEW );
464 glDepthRange( z, z );
465 glViewport( (int) x - 1, (int) y - 1, 2, 2 );
467 /* set the raster (window) position */
470 glRasterPos4f( fx, fy, 0.0, w );
472 /* restore matrices, viewport and matrix mode */
474 glMatrixMode( GL_PROJECTION );
484 _mesa_init_rastpos_dispatch(struct _glapi_table *disp)
486 SET_RasterPos2f(disp, _mesa_RasterPos2f);
487 SET_RasterPos2fv(disp, _mesa_RasterPos2fv);
488 SET_RasterPos2i(disp, _mesa_RasterPos2i);
489 SET_RasterPos2iv(disp, _mesa_RasterPos2iv);
490 SET_RasterPos2d(disp, _mesa_RasterPos2d);
491 SET_RasterPos2dv(disp, _mesa_RasterPos2dv);
492 SET_RasterPos2s(disp, _mesa_RasterPos2s);
493 SET_RasterPos2sv(disp, _mesa_RasterPos2sv);
494 SET_RasterPos3d(disp, _mesa_RasterPos3d);
495 SET_RasterPos3dv(disp, _mesa_RasterPos3dv);
496 SET_RasterPos3f(disp, _mesa_RasterPos3f);
497 SET_RasterPos3fv(disp, _mesa_RasterPos3fv);
498 SET_RasterPos3i(disp, _mesa_RasterPos3i);
499 SET_RasterPos3iv(disp, _mesa_RasterPos3iv);
500 SET_RasterPos3s(disp, _mesa_RasterPos3s);
501 SET_RasterPos3sv(disp, _mesa_RasterPos3sv);
502 SET_RasterPos4d(disp, _mesa_RasterPos4d);
503 SET_RasterPos4dv(disp, _mesa_RasterPos4dv);
504 SET_RasterPos4f(disp, _mesa_RasterPos4f);
505 SET_RasterPos4fv(disp, _mesa_RasterPos4fv);
506 SET_RasterPos4i(disp, _mesa_RasterPos4i);
507 SET_RasterPos4iv(disp, _mesa_RasterPos4iv);
508 SET_RasterPos4s(disp, _mesa_RasterPos4s);
509 SET_RasterPos4sv(disp, _mesa_RasterPos4sv);
511 /* 197. GL_MESA_window_pos */
512 SET_WindowPos2dMESA(disp, _mesa_WindowPos2dMESA);
513 SET_WindowPos2dvMESA(disp, _mesa_WindowPos2dvMESA);
514 SET_WindowPos2fMESA(disp, _mesa_WindowPos2fMESA);
515 SET_WindowPos2fvMESA(disp, _mesa_WindowPos2fvMESA);
516 SET_WindowPos2iMESA(disp, _mesa_WindowPos2iMESA);
517 SET_WindowPos2ivMESA(disp, _mesa_WindowPos2ivMESA);
518 SET_WindowPos2sMESA(disp, _mesa_WindowPos2sMESA);
519 SET_WindowPos2svMESA(disp, _mesa_WindowPos2svMESA);
520 SET_WindowPos3dMESA(disp, _mesa_WindowPos3dMESA);
521 SET_WindowPos3dvMESA(disp, _mesa_WindowPos3dvMESA);
522 SET_WindowPos3fMESA(disp, _mesa_WindowPos3fMESA);
523 SET_WindowPos3fvMESA(disp, _mesa_WindowPos3fvMESA);
524 SET_WindowPos3iMESA(disp, _mesa_WindowPos3iMESA);
525 SET_WindowPos3ivMESA(disp, _mesa_WindowPos3ivMESA);
526 SET_WindowPos3sMESA(disp, _mesa_WindowPos3sMESA);
527 SET_WindowPos3svMESA(disp, _mesa_WindowPos3svMESA);
528 SET_WindowPos4dMESA(disp, _mesa_WindowPos4dMESA);
529 SET_WindowPos4dvMESA(disp, _mesa_WindowPos4dvMESA);
530 SET_WindowPos4fMESA(disp, _mesa_WindowPos4fMESA);
531 SET_WindowPos4fvMESA(disp, _mesa_WindowPos4fvMESA);
532 SET_WindowPos4iMESA(disp, _mesa_WindowPos4iMESA);
533 SET_WindowPos4ivMESA(disp, _mesa_WindowPos4ivMESA);
534 SET_WindowPos4sMESA(disp, _mesa_WindowPos4sMESA);
535 SET_WindowPos4svMESA(disp, _mesa_WindowPos4svMESA);
539 #endif /* FEATURE_rastpos */
542 /**********************************************************************/
543 /** \name Initialization */
544 /**********************************************************************/
548 * Initialize the context current raster position information.
550 * \param ctx GL context.
552 * Initialize the current raster position information in
553 * __GLcontextRec::Current, and adds the extension entry points to the
556 void _mesa_init_rastpos( GLcontext * ctx )
560 ASSIGN_4V( ctx->Current.RasterPos, 0.0, 0.0, 0.0, 1.0 );
561 ctx->Current.RasterDistance = 0.0;
562 ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 );
563 ASSIGN_4V( ctx->Current.RasterSecondaryColor, 0.0, 0.0, 0.0, 1.0 );
564 ctx->Current.RasterIndex = 1.0;
565 for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++)
566 ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 );
567 ctx->Current.RasterPosValid = GL_TRUE;