2 Copyright (C) Intel Corp. 2006. All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial
16 portions of the Software.
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **********************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
32 #include "main/texformat.h"
33 #include "brw_context.h"
36 #include "brw_state.h"
39 GLuint brw_wm_nr_args( GLuint opcode )
100 GLuint brw_wm_is_scalar_result( GLuint opcode )
122 static void do_wm_prog( struct brw_context *brw,
123 struct brw_fragment_program *fp,
124 struct brw_wm_prog_key *key)
126 struct brw_wm_compile *c;
127 const GLuint *program;
130 c = brw->wm.compile_data;
132 brw->wm.compile_data = calloc(1, sizeof(*brw->wm.compile_data));
133 c = brw->wm.compile_data;
135 memset(c, 0, sizeof(*brw->wm.compile_data));
137 memcpy(&c->key, key, sizeof(*key));
140 c->env_param = brw->intel.ctx.FragmentProgram.Parameters;
142 brw_init_compile(brw, &c->func);
143 if (brw_wm_is_glsl(&c->fp->program)) {
144 brw_wm_glsl_emit(brw, c);
146 /* Augment fragment program. Add instructions for pre- and
147 * post-fragment-program tasks such as interpolation and fogging.
151 /* Translate to intermediate representation. Build register usage
156 /* Dead code removal.
160 /* Register allocation.
162 c->grf_limit = BRW_WM_MAX_GRF/2;
166 c->prog_data.total_grf = c->max_wm_grf;
167 if (c->last_scratch) {
168 c->prog_data.total_scratch =
169 c->last_scratch + 0x40;
171 c->prog_data.total_scratch = 0;
180 program = brw_get_program(&c->func, &program_size);
182 dri_bo_unreference(brw->wm.prog_bo);
183 brw->wm.prog_bo = brw_upload_cache( &brw->cache, BRW_WM_PROG,
184 &c->key, sizeof(c->key),
186 program, program_size,
188 &brw->wm.prog_data );
193 static void brw_wm_populate_key( struct brw_context *brw,
194 struct brw_wm_prog_key *key )
196 /* BRW_NEW_FRAGMENT_PROGRAM */
197 struct brw_fragment_program *fp =
198 (struct brw_fragment_program *)brw->fragment_program;
203 memset(key, 0, sizeof(*key));
205 /* Build the index for table lookup
208 if (fp->program.UsesKill ||
209 brw->attribs.Color->AlphaEnabled)
210 lookup |= IZ_PS_KILL_ALPHATEST_BIT;
212 if (fp->program.Base.OutputsWritten & (1<<FRAG_RESULT_DEPR))
213 lookup |= IZ_PS_COMPUTES_DEPTH_BIT;
216 if (brw->attribs.Depth->Test)
217 lookup |= IZ_DEPTH_TEST_ENABLE_BIT;
219 if (brw->attribs.Depth->Test &&
220 brw->attribs.Depth->Mask) /* ?? */
221 lookup |= IZ_DEPTH_WRITE_ENABLE_BIT;
224 if (brw->attribs.Stencil->Enabled) {
225 lookup |= IZ_STENCIL_TEST_ENABLE_BIT;
227 if (brw->attribs.Stencil->WriteMask[0] ||
228 (brw->attribs.Stencil->_TestTwoSide &&
229 brw->attribs.Stencil->WriteMask[1]))
230 lookup |= IZ_STENCIL_WRITE_ENABLE_BIT;
233 /* XXX: when should this be disabled?
236 lookup |= IZ_EARLY_DEPTH_TEST_BIT;
241 /* _NEW_LINE, _NEW_POLYGON, BRW_NEW_REDUCED_PRIMITIVE */
242 if (brw->attribs.Line->SmoothFlag) {
243 if (brw->intel.reduced_primitive == GL_LINES) {
246 else if (brw->intel.reduced_primitive == GL_TRIANGLES) {
247 if (brw->attribs.Polygon->FrontMode == GL_LINE) {
248 line_aa = AA_SOMETIMES;
250 if (brw->attribs.Polygon->BackMode == GL_LINE ||
251 (brw->attribs.Polygon->CullFlag &&
252 brw->attribs.Polygon->CullFaceMode == GL_BACK))
255 else if (brw->attribs.Polygon->BackMode == GL_LINE) {
256 line_aa = AA_SOMETIMES;
258 if ((brw->attribs.Polygon->CullFlag &&
259 brw->attribs.Polygon->CullFaceMode == GL_FRONT))
265 brw_wm_lookup_iz(line_aa,
270 /* BRW_NEW_WM_INPUT_DIMENSIONS */
271 key->projtex_mask = brw->wm.input_size_masks[4-1] >> (FRAG_ATTRIB_TEX0 - FRAG_ATTRIB_WPOS);
274 key->flat_shade = (brw->attribs.Light->ShadeModel == GL_FLAT);
277 for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
278 const struct gl_texture_unit *unit = &brw->attribs.Texture->Unit[i];
279 const struct gl_texture_object *t = unit->_Current;
281 if (unit->_ReallyEnabled) {
282 if (t->Image[0][t->BaseLevel]->InternalFormat == GL_YCBCR_MESA) {
283 key->yuvtex_mask |= 1<<i;
284 if (t->Image[0][t->BaseLevel]->TexFormat->MesaFormat ==
286 key->yuvtex_swap_mask |= 1<< i;
292 key->shadowtex_mask = fp->program.Base.ShadowSamplers;
296 * Include the draw buffer origin and height so that we can calculate
297 * fragment position values relative to the bottom left of the drawable,
298 * from the incoming screen origin relative position we get as part of our
301 * We could avoid recompiling by including this as a constant referenced by
302 * our program, but if we were to do that it would also be nice to handle
303 * getting that constant updated at batchbuffer submit time (when we
304 * hold the lock and know where the buffer really is) rather than at emit
305 * time when we don't hold the lock and are just guessing. We could also
306 * just avoid using this as key data if the program doesn't use
309 * This pretty much becomes moot with DRI2 and redirected buffers anyway,
310 * as our origins will always be zero then.
312 if (brw->intel.driDrawable != NULL) {
313 key->origin_x = brw->intel.driDrawable->x;
314 key->origin_y = brw->intel.driDrawable->y;
315 key->drawable_height = brw->intel.driDrawable->h;
320 key->program_string_id = fp->id;
325 static void brw_prepare_wm_prog(struct brw_context *brw)
327 struct brw_wm_prog_key key;
328 struct brw_fragment_program *fp = (struct brw_fragment_program *)
329 brw->fragment_program;
331 brw_wm_populate_key(brw, &key);
333 /* Make an early check for the key.
335 dri_bo_unreference(brw->wm.prog_bo);
336 brw->wm.prog_bo = brw_search_cache(&brw->cache, BRW_WM_PROG,
340 if (brw->wm.prog_bo == NULL)
341 do_wm_prog(brw, fp, &key);
347 const struct brw_tracked_state brw_wm_prog = {
349 .mesa = (_NEW_COLOR |
357 .brw = (BRW_NEW_FRAGMENT_PROGRAM |
358 BRW_NEW_WM_INPUT_DIMENSIONS |
359 BRW_NEW_REDUCED_PRIMITIVE),
362 .prepare = brw_prepare_wm_prog