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 /** Return number of src args for given instruction */
40 GLuint brw_wm_nr_args( GLuint opcode )
55 assert(opcode < MAX_OPCODE);
56 return _mesa_num_inst_src_regs(opcode);
61 GLuint brw_wm_is_scalar_result( GLuint opcode )
83 static void do_wm_prog( struct brw_context *brw,
84 struct brw_fragment_program *fp,
85 struct brw_wm_prog_key *key)
87 struct brw_wm_compile *c;
88 const GLuint *program;
91 c = brw->wm.compile_data;
93 brw->wm.compile_data = calloc(1, sizeof(*brw->wm.compile_data));
94 c = brw->wm.compile_data;
96 memset(c, 0, sizeof(*brw->wm.compile_data));
98 memcpy(&c->key, key, sizeof(*key));
101 c->env_param = brw->intel.ctx.FragmentProgram.Parameters;
103 brw_init_compile(brw, &c->func);
104 if (brw_wm_is_glsl(&c->fp->program)) {
105 brw_wm_glsl_emit(brw, c);
107 /* Augment fragment program. Add instructions for pre- and
108 * post-fragment-program tasks such as interpolation and fogging.
112 /* Translate to intermediate representation. Build register usage
117 /* Dead code removal.
121 /* Register allocation.
123 c->grf_limit = BRW_WM_MAX_GRF/2;
127 c->prog_data.total_grf = c->max_wm_grf;
128 if (c->last_scratch) {
129 c->prog_data.total_scratch =
130 c->last_scratch + 0x40;
132 c->prog_data.total_scratch = 0;
139 if (INTEL_DEBUG & DEBUG_WM)
140 fprintf(stderr, "\n");
144 program = brw_get_program(&c->func, &program_size);
146 dri_bo_unreference(brw->wm.prog_bo);
147 brw->wm.prog_bo = brw_upload_cache( &brw->cache, BRW_WM_PROG,
148 &c->key, sizeof(c->key),
150 program, program_size,
152 &brw->wm.prog_data );
157 static void brw_wm_populate_key( struct brw_context *brw,
158 struct brw_wm_prog_key *key )
160 GLcontext *ctx = &brw->intel.ctx;
161 /* BRW_NEW_FRAGMENT_PROGRAM */
162 struct brw_fragment_program *fp =
163 (struct brw_fragment_program *)brw->fragment_program;
168 memset(key, 0, sizeof(*key));
170 /* Build the index for table lookup
173 if (fp->program.UsesKill ||
174 ctx->Color.AlphaEnabled)
175 lookup |= IZ_PS_KILL_ALPHATEST_BIT;
177 if (fp->program.Base.OutputsWritten & (1<<FRAG_RESULT_DEPR))
178 lookup |= IZ_PS_COMPUTES_DEPTH_BIT;
182 lookup |= IZ_DEPTH_TEST_ENABLE_BIT;
184 if (ctx->Depth.Test &&
185 ctx->Depth.Mask) /* ?? */
186 lookup |= IZ_DEPTH_WRITE_ENABLE_BIT;
189 if (ctx->Stencil.Enabled) {
190 lookup |= IZ_STENCIL_TEST_ENABLE_BIT;
192 if (ctx->Stencil.WriteMask[0] ||
193 ctx->Stencil.WriteMask[ctx->Stencil._BackFace])
194 lookup |= IZ_STENCIL_WRITE_ENABLE_BIT;
199 /* _NEW_LINE, _NEW_POLYGON, BRW_NEW_REDUCED_PRIMITIVE */
200 if (ctx->Line.SmoothFlag) {
201 if (brw->intel.reduced_primitive == GL_LINES) {
204 else if (brw->intel.reduced_primitive == GL_TRIANGLES) {
205 if (ctx->Polygon.FrontMode == GL_LINE) {
206 line_aa = AA_SOMETIMES;
208 if (ctx->Polygon.BackMode == GL_LINE ||
209 (ctx->Polygon.CullFlag &&
210 ctx->Polygon.CullFaceMode == GL_BACK))
213 else if (ctx->Polygon.BackMode == GL_LINE) {
214 line_aa = AA_SOMETIMES;
216 if ((ctx->Polygon.CullFlag &&
217 ctx->Polygon.CullFaceMode == GL_FRONT))
223 brw_wm_lookup_iz(line_aa,
228 /* BRW_NEW_WM_INPUT_DIMENSIONS */
229 key->projtex_mask = brw->wm.input_size_masks[4-1] >> (FRAG_ATTRIB_TEX0 - FRAG_ATTRIB_WPOS);
232 key->flat_shade = (ctx->Light.ShadeModel == GL_FLAT);
235 for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
236 const struct gl_texture_unit *unit = &ctx->Texture.Unit[i];
238 if (unit->_ReallyEnabled) {
239 const struct gl_texture_object *t = unit->_Current;
240 const struct gl_texture_image *img = t->Image[0][t->BaseLevel];
241 if (img->InternalFormat == GL_YCBCR_MESA) {
242 key->yuvtex_mask |= 1 << i;
243 if (img->TexFormat->MesaFormat == MESA_FORMAT_YCBCR)
244 key->yuvtex_swap_mask |= 1 << i;
247 key->tex_swizzles[i] = t->_Swizzle;
250 key->tex_swizzles[i] = SWIZZLE_NOOP;
255 key->shadowtex_mask = fp->program.Base.ShadowSamplers;
259 * Include the draw buffer origin and height so that we can calculate
260 * fragment position values relative to the bottom left of the drawable,
261 * from the incoming screen origin relative position we get as part of our
264 * We could avoid recompiling by including this as a constant referenced by
265 * our program, but if we were to do that it would also be nice to handle
266 * getting that constant updated at batchbuffer submit time (when we
267 * hold the lock and know where the buffer really is) rather than at emit
268 * time when we don't hold the lock and are just guessing. We could also
269 * just avoid using this as key data if the program doesn't use
272 * This pretty much becomes moot with DRI2 and redirected buffers anyway,
273 * as our origins will always be zero then.
275 if (brw->intel.driDrawable != NULL) {
276 key->origin_x = brw->intel.driDrawable->x;
277 key->origin_y = brw->intel.driDrawable->y;
278 key->drawable_height = brw->intel.driDrawable->h;
283 key->program_string_id = fp->id;
288 static void brw_prepare_wm_prog(struct brw_context *brw)
290 struct brw_wm_prog_key key;
291 struct brw_fragment_program *fp = (struct brw_fragment_program *)
292 brw->fragment_program;
294 brw_wm_populate_key(brw, &key);
296 /* Make an early check for the key.
298 dri_bo_unreference(brw->wm.prog_bo);
299 brw->wm.prog_bo = brw_search_cache(&brw->cache, BRW_WM_PROG,
303 if (brw->wm.prog_bo == NULL)
304 do_wm_prog(brw, fp, &key);
310 const struct brw_tracked_state brw_wm_prog = {
312 .mesa = (_NEW_COLOR |
320 .brw = (BRW_NEW_FRAGMENT_PROGRAM |
321 BRW_NEW_WM_INPUT_DIMENSIONS |
322 BRW_NEW_REDUCED_PRIMITIVE),
325 .prepare = brw_prepare_wm_prog