src/mesa/drivers/dri/nouveau/nv10_context.c

   1 /*
   2  * Copyright (C) 2009-2010 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_context.h"
  29 #include "nouveau_fbo.h"
  30 #include "nouveau_util.h"
  31 #include "nouveau_class.h"
  32 #include "nv04_driver.h"
  33 #include "nv10_driver.h"
  34
  35 static const struct dri_extension nv10_extensions[] = {
  36         { "GL_ARB_texture_env_crossbar", NULL },
  37         { "GL_EXT_texture_rectangle",   NULL },
  38         { "GL_ARB_texture_env_combine", NULL },
  39         { "GL_ARB_texture_env_dot3",    NULL },
  40         { NULL,                         NULL }
  41 };
  42
  43 static GLboolean
  44 use_fast_zclear(GLcontext *ctx, GLbitfield buffers)
  45 {
  46         struct nouveau_context *nctx = to_nouveau_context(ctx);
  47         struct gl_framebuffer *fb = ctx->DrawBuffer;
  48
  49         if (buffers & BUFFER_BIT_STENCIL) {
  50                 /*
  51                  * The stencil test is bypassed when fast Z clears are
  52                  * enabled.
  53                  */
  54                 nctx->hierz.clear_blocked = GL_TRUE;
  55                 context_dirty(ctx, ZCLEAR);
  56                 return GL_FALSE;
  57         }
  58
  59         return !nctx->hierz.clear_blocked &&
  60                 fb->_Xmax == fb->Width && fb->_Xmin == 0 &&
  61                 fb->_Ymax == fb->Height && fb->_Ymin == 0;
  62 }
  63
  64 static void
  65 nv10_clear(GLcontext *ctx, GLbitfield buffers)
  66 {
  67         struct nouveau_context *nctx = to_nouveau_context(ctx);
  68         struct nouveau_channel *chan = context_chan(ctx);
  69         struct nouveau_grobj *celsius = context_eng3d(ctx);
  70         struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(
  71                 ctx->DrawBuffer);
  72
  73         nouveau_validate_framebuffer(ctx);
  74
  75         if ((buffers & BUFFER_BIT_DEPTH) &&
  76             ctx->Depth.Mask && nfb->hierz.bo) {
  77                 struct nouveau_surface *s = &to_nouveau_renderbuffer(
  78                         nfb->base._DepthBuffer->Wrapped)->surface;
  79
  80                 /* Clear the hierarchical depth buffer */
  81                 BEGIN_RING(chan, celsius, NV17TCL_LMA_DEPTH_FILL_VALUE, 1);
  82                 OUT_RING(chan, pack_zs_f(s->format, ctx->Depth.Clear, 0));
  83                 BEGIN_RING(chan, celsius, NV17TCL_LMA_DEPTH_BUFFER_CLEAR, 1);
  84                 OUT_RING(chan, 1);
  85
  86                 /* Mark the depth buffer as cleared */
  87                 if (use_fast_zclear(ctx, buffers)) {
  88                         if (nctx->hierz.clear_seq)
  89                                 buffers &= ~BUFFER_BIT_DEPTH;
  90
  91                         nfb->hierz.clear_value =
  92                                 pack_zs_f(s->format, ctx->Depth.Clear, 0);
  93                         nctx->hierz.clear_seq++;
  94
  95                         context_dirty(ctx, ZCLEAR);
  96                 }
  97         }
  98
  99         nouveau_clear(ctx, buffers);
 100 }
 101
 102 static void
 103 nv10_hwctx_init(GLcontext *ctx)
 104 {
 105         struct nouveau_channel *chan = context_chan(ctx);
 106         struct nouveau_grobj *celsius = context_eng3d(ctx);
 107         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
 108         int i;
 109
 110         BEGIN_RING(chan, celsius, NV10TCL_DMA_NOTIFY, 1);
 111         OUT_RING(chan, hw->ntfy->handle);
 112
 113         BEGIN_RING(chan, celsius, NV10TCL_DMA_IN_MEMORY0, 3);
 114         OUT_RING(chan, chan->vram->handle);
 115         OUT_RING(chan, chan->gart->handle);
 116         OUT_RING(chan, chan->gart->handle);
 117         BEGIN_RING(chan, celsius, NV10TCL_DMA_IN_MEMORY2, 2);
 118         OUT_RING(chan, chan->vram->handle);
 119         OUT_RING(chan, chan->vram->handle);
 120
 121         BEGIN_RING(chan, celsius, NV10TCL_NOP, 1);
 122         OUT_RING(chan, 0);
 123
 124         BEGIN_RING(chan, celsius, NV10TCL_RT_HORIZ, 2);
 125         OUT_RING(chan, 0);
 126         OUT_RING(chan, 0);
 127
 128         BEGIN_RING(chan, celsius, NV10TCL_VIEWPORT_CLIP_HORIZ(0), 1);
 129         OUT_RING(chan, 0x7ff << 16 | 0x800);
 130         BEGIN_RING(chan, celsius, NV10TCL_VIEWPORT_CLIP_VERT(0), 1);
 131         OUT_RING(chan, 0x7ff << 16 | 0x800);
 132
 133         for (i = 1; i < 8; i++) {
 134                 BEGIN_RING(chan, celsius, NV10TCL_VIEWPORT_CLIP_HORIZ(i), 1);
 135                 OUT_RING(chan, 0);
 136                 BEGIN_RING(chan, celsius, NV10TCL_VIEWPORT_CLIP_VERT(i), 1);
 137                 OUT_RING(chan, 0);
 138         }
 139
 140         BEGIN_RING(chan, celsius, 0x290, 1);
 141         OUT_RING(chan, 0x10 << 16 | 1);
 142         BEGIN_RING(chan, celsius, 0x3f4, 1);
 143         OUT_RING(chan, 0);
 144
 145         BEGIN_RING(chan, celsius, NV10TCL_NOP, 1);
 146         OUT_RING(chan, 0);
 147
 148         if (context_chipset(ctx) >= 0x17) {
 149                 BEGIN_RING(chan, celsius, NV17TCL_DMA_IN_MEMORY4, 2);
 150                 OUT_RING(chan, chan->vram->handle);
 151                 OUT_RING(chan, chan->vram->handle);
 152
 153                 BEGIN_RING(chan, celsius, 0xd84, 1);
 154                 OUT_RING(chan, 0x3);
 155
 156                 BEGIN_RING(chan, celsius, NV17TCL_COLOR_MASK_ENABLE, 1);
 157                 OUT_RING(chan, 1);
 158         }
 159
 160         if (context_chipset(ctx) >= 0x11) {
 161                 BEGIN_RING(chan, celsius, 0x120, 3);
 162                 OUT_RING(chan, 0);
 163                 OUT_RING(chan, 1);
 164                 OUT_RING(chan, 2);
 165
 166                 BEGIN_RING(chan, celsius, NV10TCL_NOP, 1);
 167                 OUT_RING(chan, 0);
 168         }
 169
 170         BEGIN_RING(chan, celsius, NV10TCL_NOP, 1);
 171         OUT_RING(chan, 0);
 172
 173         /* Set state */
 174         BEGIN_RING(chan, celsius, NV10TCL_FOG_ENABLE, 1);
 175         OUT_RING(chan, 0);
 176         BEGIN_RING(chan, celsius, NV10TCL_ALPHA_FUNC_ENABLE, 1);
 177         OUT_RING(chan, 0);
 178         BEGIN_RING(chan, celsius, NV10TCL_ALPHA_FUNC_FUNC, 2);
 179         OUT_RING(chan, 0x207);
 180         OUT_RING(chan, 0);
 181         BEGIN_RING(chan, celsius, NV10TCL_TX_ENABLE(0), 2);
 182         OUT_RING(chan, 0);
 183         OUT_RING(chan, 0);
 184
 185         BEGIN_RING(chan, celsius, NV10TCL_BLEND_FUNC_ENABLE, 1);
 186         OUT_RING(chan, 0);
 187         BEGIN_RING(chan, celsius, NV10TCL_DITHER_ENABLE, 2);
 188         OUT_RING(chan, 1);
 189         OUT_RING(chan, 0);
 190         BEGIN_RING(chan, celsius, NV10TCL_LINE_SMOOTH_ENABLE, 1);
 191         OUT_RING(chan, 0);
 192         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_WEIGHT_ENABLE, 2);
 193         OUT_RING(chan, 0);
 194         OUT_RING(chan, 0);
 195         BEGIN_RING(chan, celsius, NV10TCL_BLEND_FUNC_SRC, 4);
 196         OUT_RING(chan, 1);
 197         OUT_RING(chan, 0);
 198         OUT_RING(chan, 0);
 199         OUT_RING(chan, 0x8006);
 200         BEGIN_RING(chan, celsius, NV10TCL_STENCIL_MASK, 8);
 201         OUT_RING(chan, 0xff);
 202         OUT_RING(chan, 0x207);
 203         OUT_RING(chan, 0);
 204         OUT_RING(chan, 0xff);
 205         OUT_RING(chan, 0x1e00);
 206         OUT_RING(chan, 0x1e00);
 207         OUT_RING(chan, 0x1e00);
 208         OUT_RING(chan, 0x1d01);
 209         BEGIN_RING(chan, celsius, NV10TCL_NORMALIZE_ENABLE, 1);
 210         OUT_RING(chan, 0);
 211         BEGIN_RING(chan, celsius, NV10TCL_FOG_ENABLE, 2);
 212         OUT_RING(chan, 0);
 213         OUT_RING(chan, 0);
 214         BEGIN_RING(chan, celsius, NV10TCL_LIGHT_MODEL, 1);
 215         OUT_RING(chan, 0);
 216         BEGIN_RING(chan, celsius, NV10TCL_SEPARATE_SPECULAR_ENABLE, 1);
 217         OUT_RING(chan, 0);
 218         BEGIN_RING(chan, celsius, NV10TCL_ENABLED_LIGHTS, 1);
 219         OUT_RING(chan, 0);
 220         BEGIN_RING(chan, celsius, NV10TCL_POLYGON_OFFSET_POINT_ENABLE, 3);
 221         OUT_RING(chan, 0);
 222         OUT_RING(chan, 0);
 223         OUT_RING(chan, 0);
 224         BEGIN_RING(chan, celsius, NV10TCL_DEPTH_FUNC, 1);
 225         OUT_RING(chan, 0x201);
 226         BEGIN_RING(chan, celsius, NV10TCL_DEPTH_WRITE_ENABLE, 1);
 227         OUT_RING(chan, 0);
 228         BEGIN_RING(chan, celsius, NV10TCL_DEPTH_TEST_ENABLE, 1);
 229         OUT_RING(chan, 0);
 230         BEGIN_RING(chan, celsius, NV10TCL_POLYGON_OFFSET_FACTOR, 2);
 231         OUT_RING(chan, 0);
 232         OUT_RING(chan, 0);
 233         BEGIN_RING(chan, celsius, NV10TCL_POINT_SIZE, 1);
 234         OUT_RING(chan, 8);
 235         BEGIN_RING(chan, celsius, NV10TCL_POINT_PARAMETERS_ENABLE, 2);
 236         OUT_RING(chan, 0);
 237         OUT_RING(chan, 0);
 238         BEGIN_RING(chan, celsius, NV10TCL_LINE_WIDTH, 1);
 239         OUT_RING(chan, 8);
 240         BEGIN_RING(chan, celsius, NV10TCL_LINE_SMOOTH_ENABLE, 1);
 241         OUT_RING(chan, 0);
 242         BEGIN_RING(chan, celsius, NV10TCL_POLYGON_MODE_FRONT, 2);
 243         OUT_RING(chan, 0x1b02);
 244         OUT_RING(chan, 0x1b02);
 245         BEGIN_RING(chan, celsius, NV10TCL_CULL_FACE, 2);
 246         OUT_RING(chan, 0x405);
 247         OUT_RING(chan, 0x901);
 248         BEGIN_RING(chan, celsius, NV10TCL_POLYGON_SMOOTH_ENABLE, 1);
 249         OUT_RING(chan, 0);
 250         BEGIN_RING(chan, celsius, NV10TCL_CULL_FACE_ENABLE, 1);
 251         OUT_RING(chan, 0);
 252         BEGIN_RING(chan, celsius, NV10TCL_TX_GEN_MODE_S(0), 8);
 253         for (i = 0; i < 8; i++)
 254                 OUT_RING(chan, 0);
 255
 256         BEGIN_RING(chan, celsius, NV10TCL_TX_MATRIX_ENABLE(0), 2);
 257         OUT_RING(chan, 0);
 258         OUT_RING(chan, 0);
 259         BEGIN_RING(chan, celsius, NV10TCL_FOG_EQUATION_CONSTANT, 3);
 260         OUT_RING(chan, 0x3fc00000);     /* -1.50 */
 261         OUT_RING(chan, 0xbdb8aa0a);     /* -0.09 */
 262         OUT_RING(chan, 0);              /*  0.00 */
 263
 264         BEGIN_RING(chan, celsius, NV10TCL_NOP, 1);
 265         OUT_RING(chan, 0);
 266
 267         BEGIN_RING(chan, celsius, NV10TCL_FOG_MODE, 2);
 268         OUT_RING(chan, 0x802);
 269         OUT_RING(chan, 2);
 270         /* for some reason VIEW_MATRIX_ENABLE need to be 6 instead of 4 when
 271          * using texturing, except when using the texture matrix
 272          */
 273         BEGIN_RING(chan, celsius, NV10TCL_VIEW_MATRIX_ENABLE, 1);
 274         OUT_RING(chan, 6);
 275         BEGIN_RING(chan, celsius, NV10TCL_COLOR_MASK, 1);
 276         OUT_RING(chan, 0x01010101);
 277
 278         /* Set vertex component */
 279         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_COL_4F_R, 4);
 280         OUT_RINGf(chan, 1.0);
 281         OUT_RINGf(chan, 0.0);
 282         OUT_RINGf(chan, 0.0);
 283         OUT_RINGf(chan, 1.0);
 284         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_COL2_3F_R, 3);
 285         OUT_RING(chan, 0);
 286         OUT_RING(chan, 0);
 287         OUT_RING(chan, 0);
 288         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_NOR_3F_X, 3);
 289         OUT_RING(chan, 0);
 290         OUT_RING(chan, 0);
 291         OUT_RINGf(chan, 1.0);
 292         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_TX0_4F_S, 4);
 293         OUT_RINGf(chan, 0.0);
 294         OUT_RINGf(chan, 0.0);
 295         OUT_RINGf(chan, 0.0);
 296         OUT_RINGf(chan, 1.0);
 297         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_TX1_4F_S, 4);
 298         OUT_RINGf(chan, 0.0);
 299         OUT_RINGf(chan, 0.0);
 300         OUT_RINGf(chan, 0.0);
 301         OUT_RINGf(chan, 1.0);
 302         BEGIN_RING(chan, celsius, NV10TCL_VERTEX_FOG_1F, 1);
 303         OUT_RINGf(chan, 0.0);
 304         BEGIN_RING(chan, celsius, NV10TCL_EDGEFLAG_ENABLE, 1);
 305         OUT_RING(chan, 1);
 306
 307         BEGIN_RING(chan, celsius, NV10TCL_DEPTH_RANGE_NEAR, 2);
 308         OUT_RING(chan, 0.0);
 309         OUT_RINGf(chan, 16777216.0);
 310
 311         FIRE_RING(chan);
 312 }
 313
 314 static void
 315 nv10_context_destroy(GLcontext *ctx)
 316 {
 317         struct nouveau_context *nctx = to_nouveau_context(ctx);
 318
 319         nv04_surface_takedown(ctx);
 320         nv10_render_destroy(ctx);
 321
 322         nouveau_grobj_free(&nctx->hw.eng3d);
 323
 324         nouveau_context_deinit(ctx);
 325         FREE(ctx);
 326 }
 327
 328 static GLcontext *
 329 nv10_context_create(struct nouveau_screen *screen, const GLvisual *visual,
 330                     GLcontext *share_ctx)
 331 {
 332         struct nouveau_context *nctx;
 333         GLcontext *ctx;
 334         unsigned celsius_class;
 335         int ret;
 336
 337         nctx = CALLOC_STRUCT(nouveau_context);
 338         if (!nctx)
 339                 return NULL;
 340
 341         ctx = &nctx->base;
 342
 343         if (!nouveau_context_init(ctx, screen, visual, share_ctx))
 344                 goto fail;
 345
 346         driInitExtensions(ctx, nv10_extensions, GL_FALSE);
 347
 348         /* GL constants. */
 349         ctx->Const.MaxTextureLevels = 12;
 350         ctx->Const.MaxTextureCoordUnits = NV10_TEXTURE_UNITS;
 351         ctx->Const.MaxTextureImageUnits = NV10_TEXTURE_UNITS;
 352         ctx->Const.MaxTextureUnits = NV10_TEXTURE_UNITS;
 353         ctx->Const.MaxTextureMaxAnisotropy = 2;
 354         ctx->Const.MaxTextureLodBias = 15;
 355         ctx->Driver.Clear = nv10_clear;
 356
 357         /* 2D engine. */
 358         ret = nv04_surface_init(ctx);
 359         if (!ret)
 360                 goto fail;
 361
 362         /* 3D engine. */
 363         if (context_chipset(ctx) >= 0x17)
 364                 celsius_class = NV17TCL;
 365         else if (context_chipset(ctx) >= 0x11)
 366                 celsius_class = NV11TCL;
 367         else
 368                 celsius_class = NV10TCL;
 369
 370         ret = nouveau_grobj_alloc(context_chan(ctx), 0xbeef0001, celsius_class,
 371                                   &nctx->hw.eng3d);
 372         if (ret)
 373                 goto fail;
 374
 375         nv10_hwctx_init(ctx);
 376         nv10_render_init(ctx);
 377
 378         return ctx;
 379
 380 fail:
 381         nv10_context_destroy(ctx);
 382         return NULL;
 383 }
 384
 385 const struct nouveau_driver nv10_driver = {
 386         .context_create = nv10_context_create,
 387         .context_destroy = nv10_context_destroy,
 388         .surface_copy = nv04_surface_copy,
 389         .surface_fill = nv04_surface_fill,
 390         .emit = (nouveau_state_func[]) {
 391                 nv10_emit_alpha_func,
 392                 nv10_emit_blend_color,
 393                 nv10_emit_blend_equation,
 394                 nv10_emit_blend_func,
 395                 nv10_emit_clip_plane,
 396                 nv10_emit_clip_plane,
 397                 nv10_emit_clip_plane,
 398                 nv10_emit_clip_plane,
 399                 nv10_emit_clip_plane,
 400                 nv10_emit_clip_plane,
 401                 nv10_emit_color_mask,
 402                 nv10_emit_color_material,
 403                 nv10_emit_cull_face,
 404                 nv10_emit_front_face,
 405                 nv10_emit_depth,
 406                 nv10_emit_dither,
 407                 nv10_emit_frag,
 408                 nv10_emit_framebuffer,
 409                 nv10_emit_fog,
 410                 nv10_emit_light_enable,
 411                 nv10_emit_light_model,
 412                 nv10_emit_light_source,
 413                 nv10_emit_light_source,
 414                 nv10_emit_light_source,
 415                 nv10_emit_light_source,
 416                 nv10_emit_light_source,
 417                 nv10_emit_light_source,
 418                 nv10_emit_light_source,
 419                 nv10_emit_light_source,
 420                 nv10_emit_line_stipple,
 421                 nv10_emit_line_mode,
 422                 nv10_emit_logic_opcode,
 423                 nv10_emit_material_ambient,
 424                 nouveau_emit_nothing,
 425                 nv10_emit_material_diffuse,
 426                 nouveau_emit_nothing,
 427                 nv10_emit_material_specular,
 428                 nouveau_emit_nothing,
 429                 nv10_emit_material_shininess,
 430                 nouveau_emit_nothing,
 431                 nv10_emit_modelview,
 432                 nv10_emit_point_mode,
 433                 nv10_emit_point_parameter,
 434                 nv10_emit_polygon_mode,
 435                 nv10_emit_polygon_offset,
 436                 nv10_emit_polygon_stipple,
 437                 nv10_emit_projection,
 438                 nv10_emit_render_mode,
 439                 nv10_emit_scissor,
 440                 nv10_emit_shade_model,
 441                 nv10_emit_stencil_func,
 442                 nv10_emit_stencil_mask,
 443                 nv10_emit_stencil_op,
 444                 nv10_emit_tex_env,
 445                 nv10_emit_tex_env,
 446                 nouveau_emit_nothing,
 447                 nouveau_emit_nothing,
 448                 nv10_emit_tex_gen,
 449                 nv10_emit_tex_gen,
 450                 nouveau_emit_nothing,
 451                 nouveau_emit_nothing,
 452                 nv10_emit_tex_mat,
 453                 nv10_emit_tex_mat,
 454                 nouveau_emit_nothing,
 455                 nouveau_emit_nothing,
 456                 nv10_emit_tex_obj,
 457                 nv10_emit_tex_obj,
 458                 nouveau_emit_nothing,
 459                 nouveau_emit_nothing,
 460                 nv10_emit_viewport,
 461                 nv10_emit_zclear
 462         },
 463         .num_emit = NUM_NV10_STATE,
 464 };