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1 /*
2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
3 
4 The Weather Channel (TM) funded Tungsten Graphics to develop the
5 initial release of the Radeon 8500 driver under the XFree86 license.
6 This notice must be preserved.
7 
8 Permission is hereby granted, free of charge, to any person obtaining
9 a copy of this software and associated documentation files (the
10 "Software"), to deal in the Software without restriction, including
11 without limitation the rights to use, copy, modify, merge, publish,
12 distribute, sublicense, and/or sell copies of the Software, and to
13 permit persons to whom the Software is furnished to do so, subject to
14 the following conditions:
15 
16 The above copyright notice and this permission notice (including the
17 next paragraph) shall be included in all copies or substantial
18 portions of the Software.
19 
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 */
28 
29 /*
30  * Authors:
31  *   Keith Whitwell <keithw@vmware.com>
32  */
33 
34 #include "main/glheader.h"
35 #include "main/imports.h"
36 #include "main/context.h"
37 #include "main/enums.h"
38 #include "main/image.h"
39 #include "main/teximage.h"
40 #include "main/texobj.h"
41 #include "main/samplerobj.h"
42 
43 #include "radeon_mipmap_tree.h"
44 #include "r200_context.h"
45 #include "r200_ioctl.h"
46 #include "r200_tex.h"
47 
48 #include "xmlpool.h"
49 
50 
51 
52 /**
53  * Set the texture wrap modes.
54  *
55  * \param t Texture object whose wrap modes are to be set
56  * \param swrap Wrap mode for the \a s texture coordinate
57  * \param twrap Wrap mode for the \a t texture coordinate
58  */
59 
r200SetTexWrap(radeonTexObjPtr t,GLenum swrap,GLenum twrap,GLenum rwrap)60 static void r200SetTexWrap( radeonTexObjPtr t, GLenum swrap, GLenum twrap, GLenum rwrap )
61 {
62    GLboolean  is_clamp = GL_FALSE;
63    GLboolean  is_clamp_to_border = GL_FALSE;
64    struct gl_texture_object *tObj = &t->base;
65 
66    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
67 		"%s(tex %p) sw %s, tw %s, rw %s\n",
68 		__func__, t,
69 		_mesa_enum_to_string(swrap),
70 		_mesa_enum_to_string(twrap),
71 		_mesa_enum_to_string(rwrap));
72 
73    t->pp_txfilter &= ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
74 
75    switch ( swrap ) {
76    case GL_REPEAT:
77       t->pp_txfilter |= R200_CLAMP_S_WRAP;
78       break;
79    case GL_CLAMP:
80       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
81       is_clamp = GL_TRUE;
82       break;
83    case GL_CLAMP_TO_EDGE:
84       t->pp_txfilter |= R200_CLAMP_S_CLAMP_LAST;
85       break;
86    case GL_CLAMP_TO_BORDER:
87       t->pp_txfilter |= R200_CLAMP_S_CLAMP_GL;
88       is_clamp_to_border = GL_TRUE;
89       break;
90    case GL_MIRRORED_REPEAT:
91       t->pp_txfilter |= R200_CLAMP_S_MIRROR;
92       break;
93    case GL_MIRROR_CLAMP_EXT:
94       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
95       is_clamp = GL_TRUE;
96       break;
97    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
98       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_LAST;
99       break;
100    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
101       t->pp_txfilter |= R200_CLAMP_S_MIRROR_CLAMP_GL;
102       is_clamp_to_border = GL_TRUE;
103       break;
104    default:
105       _mesa_problem(NULL, "bad S wrap mode in %s", __func__);
106    }
107 
108    if (tObj->Target != GL_TEXTURE_1D) {
109       switch ( twrap ) {
110       case GL_REPEAT:
111          t->pp_txfilter |= R200_CLAMP_T_WRAP;
112          break;
113       case GL_CLAMP:
114          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
115          is_clamp = GL_TRUE;
116          break;
117       case GL_CLAMP_TO_EDGE:
118          t->pp_txfilter |= R200_CLAMP_T_CLAMP_LAST;
119          break;
120       case GL_CLAMP_TO_BORDER:
121          t->pp_txfilter |= R200_CLAMP_T_CLAMP_GL;
122          is_clamp_to_border = GL_TRUE;
123          break;
124       case GL_MIRRORED_REPEAT:
125          t->pp_txfilter |= R200_CLAMP_T_MIRROR;
126          break;
127       case GL_MIRROR_CLAMP_EXT:
128          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
129          is_clamp = GL_TRUE;
130          break;
131       case GL_MIRROR_CLAMP_TO_EDGE_EXT:
132          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_LAST;
133          break;
134       case GL_MIRROR_CLAMP_TO_BORDER_EXT:
135          t->pp_txfilter |= R200_CLAMP_T_MIRROR_CLAMP_GL;
136          is_clamp_to_border = GL_TRUE;
137          break;
138       default:
139          _mesa_problem(NULL, "bad T wrap mode in %s", __func__);
140       }
141    }
142 
143    t->pp_txformat_x &= ~R200_CLAMP_Q_MASK;
144 
145    switch ( rwrap ) {
146    case GL_REPEAT:
147       t->pp_txformat_x |= R200_CLAMP_Q_WRAP;
148       break;
149    case GL_CLAMP:
150       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
151       is_clamp = GL_TRUE;
152       break;
153    case GL_CLAMP_TO_EDGE:
154       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_LAST;
155       break;
156    case GL_CLAMP_TO_BORDER:
157       t->pp_txformat_x |= R200_CLAMP_Q_CLAMP_GL;
158       is_clamp_to_border = GL_TRUE;
159       break;
160    case GL_MIRRORED_REPEAT:
161       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR;
162       break;
163    case GL_MIRROR_CLAMP_EXT:
164       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
165       is_clamp = GL_TRUE;
166       break;
167    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
168       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_LAST;
169       break;
170    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
171       t->pp_txformat_x |= R200_CLAMP_Q_MIRROR_CLAMP_GL;
172       is_clamp_to_border = GL_TRUE;
173       break;
174    default:
175       _mesa_problem(NULL, "bad R wrap mode in %s", __func__);
176    }
177 
178    if ( is_clamp_to_border ) {
179       t->pp_txfilter |= R200_BORDER_MODE_D3D;
180    }
181 
182    t->border_fallback = (is_clamp && is_clamp_to_border);
183 }
184 
r200SetTexMaxAnisotropy(radeonTexObjPtr t,GLfloat max)185 static void r200SetTexMaxAnisotropy( radeonTexObjPtr t, GLfloat max )
186 {
187    t->pp_txfilter &= ~R200_MAX_ANISO_MASK;
188    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
189 	"%s(tex %p) max %f.\n",
190 	__func__, t, max);
191 
192    if ( max <= 1.0 ) {
193       t->pp_txfilter |= R200_MAX_ANISO_1_TO_1;
194    } else if ( max <= 2.0 ) {
195       t->pp_txfilter |= R200_MAX_ANISO_2_TO_1;
196    } else if ( max <= 4.0 ) {
197       t->pp_txfilter |= R200_MAX_ANISO_4_TO_1;
198    } else if ( max <= 8.0 ) {
199       t->pp_txfilter |= R200_MAX_ANISO_8_TO_1;
200    } else {
201       t->pp_txfilter |= R200_MAX_ANISO_16_TO_1;
202    }
203 }
204 
205 /**
206  * Set the texture magnification and minification modes.
207  *
208  * \param t Texture whose filter modes are to be set
209  * \param minf Texture minification mode
210  * \param magf Texture magnification mode
211  */
212 
r200SetTexFilter(radeonTexObjPtr t,GLenum minf,GLenum magf)213 static void r200SetTexFilter( radeonTexObjPtr t, GLenum minf, GLenum magf )
214 {
215    GLuint anisotropy = (t->pp_txfilter & R200_MAX_ANISO_MASK);
216 
217    /* Force revalidation to account for switches from/to mipmapping. */
218    t->validated = GL_FALSE;
219 
220    t->pp_txfilter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
221    t->pp_txformat_x &= ~R200_VOLUME_FILTER_MASK;
222 
223    radeon_print(RADEON_TEXTURE, RADEON_TRACE,
224 	"%s(tex %p) minf %s, maxf %s, anisotropy %d.\n",
225 	__func__, t,
226 	_mesa_enum_to_string(minf),
227 	_mesa_enum_to_string(magf),
228 	anisotropy);
229 
230    if ( anisotropy == R200_MAX_ANISO_1_TO_1 ) {
231       switch ( minf ) {
232       case GL_NEAREST:
233 	 t->pp_txfilter |= R200_MIN_FILTER_NEAREST;
234 	 break;
235       case GL_LINEAR:
236 	 t->pp_txfilter |= R200_MIN_FILTER_LINEAR;
237 	 break;
238       case GL_NEAREST_MIPMAP_NEAREST:
239 	 t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
240 	 break;
241       case GL_NEAREST_MIPMAP_LINEAR:
242 	 t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
243 	 break;
244       case GL_LINEAR_MIPMAP_NEAREST:
245 	 t->pp_txfilter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
246 	 break;
247       case GL_LINEAR_MIPMAP_LINEAR:
248 	 t->pp_txfilter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
249 	 break;
250       }
251    } else {
252       switch ( minf ) {
253       case GL_NEAREST:
254 	 t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST;
255 	 break;
256       case GL_LINEAR:
257 	 t->pp_txfilter |= R200_MIN_FILTER_ANISO_LINEAR;
258 	 break;
259       case GL_NEAREST_MIPMAP_NEAREST:
260       case GL_LINEAR_MIPMAP_NEAREST:
261 	 t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
262 	 break;
263       case GL_NEAREST_MIPMAP_LINEAR:
264       case GL_LINEAR_MIPMAP_LINEAR:
265 	 t->pp_txfilter |= R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
266 	 break;
267       }
268    }
269 
270    /* Note we don't have 3D mipmaps so only use the mag filter setting
271     * to set the 3D texture filter mode.
272     */
273    switch ( magf ) {
274    case GL_NEAREST:
275       t->pp_txfilter |= R200_MAG_FILTER_NEAREST;
276       t->pp_txformat_x |= R200_VOLUME_FILTER_NEAREST;
277       break;
278    case GL_LINEAR:
279       t->pp_txfilter |= R200_MAG_FILTER_LINEAR;
280       t->pp_txformat_x |= R200_VOLUME_FILTER_LINEAR;
281       break;
282    }
283 }
284 
r200SetTexBorderColor(radeonTexObjPtr t,const GLfloat color[4])285 static void r200SetTexBorderColor( radeonTexObjPtr t, const GLfloat color[4] )
286 {
287    GLubyte c[4];
288    CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
289    CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
290    CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
291    CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
292    t->pp_border_color = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
293 }
294 
r200TexEnv(struct gl_context * ctx,GLenum target,GLenum pname,const GLfloat * param)295 static void r200TexEnv( struct gl_context *ctx, GLenum target,
296 			  GLenum pname, const GLfloat *param )
297 {
298    r200ContextPtr rmesa = R200_CONTEXT(ctx);
299    GLuint unit = ctx->Texture.CurrentUnit;
300    struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
301 
302    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE, "%s( %s )\n",
303 	       __func__, _mesa_enum_to_string( pname ) );
304 
305    /* This is incorrect: Need to maintain this data for each of
306     * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
307     * between them according to _Current->Target.
308     */
309    switch ( pname ) {
310    case GL_TEXTURE_ENV_COLOR: {
311       GLubyte c[4];
312       GLuint envColor;
313       _mesa_unclamped_float_rgba_to_ubyte(c, texUnit->EnvColor);
314       envColor = radeonPackColor( 4, c[0], c[1], c[2], c[3] );
315       if ( rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] != envColor ) {
316 	 R200_STATECHANGE( rmesa, tf );
317 	 rmesa->hw.tf.cmd[TF_TFACTOR_0 + unit] = envColor;
318       }
319       break;
320    }
321 
322    case GL_TEXTURE_LOD_BIAS_EXT: {
323       GLfloat bias, min;
324       GLuint b;
325       const int fixed_one = R200_LOD_BIAS_FIXED_ONE;
326 
327       /* The R200's LOD bias is a signed 2's complement value with a
328        * range of -16.0 <= bias < 16.0.
329        *
330        * NOTE: Add a small bias to the bias for conform mipsel.c test.
331        */
332       bias = *param;
333       min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ?
334 	  0.0 : -16.0;
335       bias = CLAMP( bias, min, 16.0 );
336       b = ((int)(bias * fixed_one)
337 		+ R200_LOD_BIAS_CORRECTION) & R200_LOD_BIAS_MASK;
338 
339       if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) {
340 	 R200_STATECHANGE( rmesa, tex[unit] );
341 	 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &= ~R200_LOD_BIAS_MASK;
342 	 rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
343       }
344       break;
345    }
346    case GL_COORD_REPLACE_ARB:
347       if (ctx->Point.PointSprite) {
348 	 R200_STATECHANGE( rmesa, spr );
349 	 if ((GLenum)param[0]) {
350 	    rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] |= R200_PS_GEN_TEX_0 << unit;
351 	 } else {
352 	    rmesa->hw.spr.cmd[SPR_POINT_SPRITE_CNTL] &= ~(R200_PS_GEN_TEX_0 << unit);
353 	 }
354       }
355       break;
356    default:
357       return;
358    }
359 }
360 
r200TexUpdateParameters(struct gl_context * ctx,GLuint unit)361 void r200TexUpdateParameters(struct gl_context *ctx, GLuint unit)
362 {
363    struct gl_sampler_object *samp = _mesa_get_samplerobj(ctx, unit);
364    radeonTexObj* t = radeon_tex_obj(ctx->Texture.Unit[unit]._Current);
365 
366    r200SetTexMaxAnisotropy(t , samp->MaxAnisotropy);
367    r200SetTexFilter(t, samp->MinFilter, samp->MagFilter);
368    r200SetTexWrap(t, samp->WrapS, samp->WrapT, samp->WrapR);
369    r200SetTexBorderColor(t, samp->BorderColor.f);
370 }
371 
372 /**
373  * Changes variables and flags for a state update, which will happen at the
374  * next UpdateTextureState
375  */
r200TexParameter(struct gl_context * ctx,struct gl_texture_object * texObj,GLenum pname)376 static void r200TexParameter(struct gl_context *ctx,
377                              struct gl_texture_object *texObj,
378                              GLenum pname)
379 {
380    radeonTexObj* t = radeon_tex_obj(texObj);
381 
382    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_VERBOSE,
383 		"%s(%p, tex %p)  pname %s\n",
384 		__func__, ctx, texObj,
385 	       _mesa_enum_to_string( pname ) );
386 
387    switch ( pname ) {
388    case GL_TEXTURE_MIN_FILTER:
389    case GL_TEXTURE_MAG_FILTER:
390    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
391    case GL_TEXTURE_WRAP_S:
392    case GL_TEXTURE_WRAP_T:
393    case GL_TEXTURE_WRAP_R:
394    case GL_TEXTURE_BORDER_COLOR:
395    case GL_TEXTURE_BASE_LEVEL:
396    case GL_TEXTURE_MAX_LEVEL:
397    case GL_TEXTURE_MIN_LOD:
398    case GL_TEXTURE_MAX_LOD:
399       t->validated = GL_FALSE;
400       break;
401 
402    default:
403       return;
404    }
405 }
406 
407 
r200DeleteTexture(struct gl_context * ctx,struct gl_texture_object * texObj)408 static void r200DeleteTexture(struct gl_context * ctx, struct gl_texture_object *texObj)
409 {
410    r200ContextPtr rmesa = R200_CONTEXT(ctx);
411    radeonTexObj* t = radeon_tex_obj(texObj);
412 
413    radeon_print(RADEON_TEXTURE | RADEON_STATE, RADEON_NORMAL,
414            "%s( %p (target = %s) )\n", __func__,
415 	   (void *)texObj,
416 	   _mesa_enum_to_string(texObj->Target));
417 
418    if (rmesa) {
419       int i;
420       radeon_firevertices(&rmesa->radeon);
421       for ( i = 0 ; i < rmesa->radeon.glCtx.Const.MaxTextureUnits ; i++ ) {
422 	 if ( t == rmesa->state.texture.unit[i].texobj ) {
423 	    rmesa->state.texture.unit[i].texobj = NULL;
424 	    rmesa->hw.tex[i].dirty = GL_FALSE;
425 	    rmesa->hw.cube[i].dirty = GL_FALSE;
426 	 }
427       }
428    }
429 
430    radeon_miptree_unreference(&t->mt);
431 
432    _mesa_delete_texture_object(ctx, texObj);
433 }
434 
435 /* Need:
436  *  - Same GEN_MODE for all active bits
437  *  - Same EyePlane/ObjPlane for all active bits when using Eye/Obj
438  *  - STRQ presumably all supported (matrix means incoming R values
439  *    can end up in STQ, this has implications for vertex support,
440  *    presumably ok if maos is used, though?)
441  *
442  * Basically impossible to do this on the fly - just collect some
443  * basic info & do the checks from ValidateState().
444  */
r200TexGen(struct gl_context * ctx,GLenum coord,GLenum pname,const GLfloat * params)445 static void r200TexGen( struct gl_context *ctx,
446 			  GLenum coord,
447 			  GLenum pname,
448 			  const GLfloat *params )
449 {
450    r200ContextPtr rmesa = R200_CONTEXT(ctx);
451    GLuint unit = ctx->Texture.CurrentUnit;
452    rmesa->recheck_texgen[unit] = GL_TRUE;
453 }
454 
455 
456 /**
457  * Allocate a new texture object.
458  * Called via ctx->Driver.NewTextureObject.
459  * Note: this function will be called during context creation to
460  * allocate the default texture objects.
461  * Fixup MaxAnisotropy according to user preference.
462  */
r200NewTextureObject(struct gl_context * ctx,GLuint name,GLenum target)463 static struct gl_texture_object *r200NewTextureObject(struct gl_context * ctx,
464 						      GLuint name,
465 						      GLenum target)
466 {
467    r200ContextPtr rmesa = R200_CONTEXT(ctx);
468    radeonTexObj* t = CALLOC_STRUCT(radeon_tex_obj);
469 
470 
471    radeon_print(RADEON_STATE | RADEON_TEXTURE, RADEON_NORMAL,
472            "%s(%p) target %s, new texture %p.\n",
473 	   __func__, ctx,
474 	   _mesa_enum_to_string(target), t);
475 
476    _mesa_initialize_texture_object(ctx, &t->base, name, target);
477    t->base.Sampler.MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
478 
479    /* Initialize hardware state */
480    r200SetTexWrap( t, t->base.Sampler.WrapS, t->base.Sampler.WrapT, t->base.Sampler.WrapR );
481    r200SetTexMaxAnisotropy( t, t->base.Sampler.MaxAnisotropy );
482    r200SetTexFilter(t, t->base.Sampler.MinFilter, t->base.Sampler.MagFilter);
483    r200SetTexBorderColor(t, t->base.Sampler.BorderColor.f);
484 
485    return &t->base;
486 }
487 
488 static struct gl_sampler_object *
r200NewSamplerObject(struct gl_context * ctx,GLuint name)489 r200NewSamplerObject(struct gl_context *ctx, GLuint name)
490 {
491    r200ContextPtr rmesa = R200_CONTEXT(ctx);
492    struct gl_sampler_object *samp = _mesa_new_sampler_object(ctx, name);
493    if (samp)
494       samp->MaxAnisotropy = rmesa->radeon.initialMaxAnisotropy;
495    return samp;
496 }
497 
498 
499 
r200InitTextureFuncs(radeonContextPtr radeon,struct dd_function_table * functions)500 void r200InitTextureFuncs( radeonContextPtr radeon, struct dd_function_table *functions )
501 {
502    /* Note: we only plug in the functions we implement in the driver
503     * since _mesa_init_driver_functions() was already called.
504     */
505 
506    radeon_init_common_texture_funcs(radeon, functions);
507 
508    functions->NewTextureObject		= r200NewTextureObject;
509    //   functions->BindTexture		= r200BindTexture;
510    functions->DeleteTexture		= r200DeleteTexture;
511 
512    functions->TexEnv			= r200TexEnv;
513    functions->TexParameter		= r200TexParameter;
514    functions->TexGen			= r200TexGen;
515    functions->NewSamplerObject		= r200NewSamplerObject;
516 }
517