src/mesa/drivers/dri/nouveau/nv04_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 "nv04_3d.xml.h"
  32 #include "nv04_driver.h"
  33
  34 static GLboolean
  35 texunit_needs_combiners(struct gl_texture_unit *u,
  36                         struct gl_fixedfunc_texture_unit *f)
  37 {
  38         struct gl_texture_object *t = u->_Current;
  39         struct gl_texture_image *ti = t->Image[0][t->BaseLevel];
  40
  41         return ti->TexFormat == MESA_FORMAT_A_UNORM8 ||
  42                 ti->TexFormat == MESA_FORMAT_L_UNORM8 ||
  43                 f->EnvMode == GL_COMBINE ||
  44                 f->EnvMode == GL_COMBINE4_NV ||
  45                 f->EnvMode == GL_BLEND ||
  46                 f->EnvMode == GL_ADD;
  47 }
  48
  49 struct nouveau_object *
  50 nv04_context_engine(struct gl_context *ctx)
  51 {
  52         struct nv04_context *nctx = to_nv04_context(ctx);
  53         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  54         struct nouveau_pushbuf *push = context_push(ctx);
  55         struct nouveau_object *fahrenheit;
  56
  57         if ((ctx->Texture.Unit[0]._Current &&
  58              texunit_needs_combiners(&ctx->Texture.Unit[0],
  59                                      &ctx->Texture.FixedFuncUnit[0])) ||
  60             ctx->Texture.Unit[1]._Current ||
  61             ctx->Stencil.Enabled ||
  62             GET_COLORMASK(ctx->Color.ColorMask, 0) != 0xf)
  63                 fahrenheit = hw->eng3dm;
  64         else
  65                 fahrenheit = hw->eng3d;
  66
  67         if (fahrenheit != nctx->eng3d) {
  68                 BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
  69                 PUSH_DATA (push, fahrenheit->handle);
  70                 nctx->eng3d = fahrenheit;
  71         }
  72
  73         return fahrenheit;
  74 }
  75
  76 static void
  77 nv04_hwctx_init(struct gl_context *ctx)
  78 {
  79         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  80         struct nouveau_pushbuf *push = context_push(ctx);
  81         struct nv04_fifo *fifo = hw->chan->data;
  82
  83         BEGIN_NV04(push, NV01_SUBC(SURF, OBJECT), 1);
  84         PUSH_DATA (push, hw->surf3d->handle);
  85         BEGIN_NV04(push, NV04_SF3D(DMA_NOTIFY), 3);
  86         PUSH_DATA (push, hw->ntfy->handle);
  87         PUSH_DATA (push, fifo->vram);
  88         PUSH_DATA (push, fifo->vram);
  89
  90         BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
  91         PUSH_DATA (push, hw->eng3d->handle);
  92         BEGIN_NV04(push, NV04_TTRI(DMA_NOTIFY), 4);
  93         PUSH_DATA (push, hw->ntfy->handle);
  94         PUSH_DATA (push, fifo->vram);
  95         PUSH_DATA (push, fifo->gart);
  96         PUSH_DATA (push, hw->surf3d->handle);
  97
  98         BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
  99         PUSH_DATA (push, hw->eng3dm->handle);
 100         BEGIN_NV04(push, NV04_MTRI(DMA_NOTIFY), 4);
 101         PUSH_DATA (push, hw->ntfy->handle);
 102         PUSH_DATA (push, fifo->vram);
 103         PUSH_DATA (push, fifo->gart);
 104         PUSH_DATA (push, hw->surf3d->handle);
 105
 106         PUSH_KICK (push);
 107 }
 108
 109 static void
 110 init_dummy_texture(struct gl_context *ctx)
 111 {
 112         struct nouveau_surface *s = &to_nv04_context(ctx)->dummy_texture;
 113
 114         nouveau_surface_alloc(ctx, s, SWIZZLED,
 115                               NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM,
 116                               MESA_FORMAT_B8G8R8A8_UNORM, 1, 1);
 117
 118         nouveau_bo_map(s->bo, NOUVEAU_BO_WR, context_client(ctx));
 119         *(uint32_t *)s->bo->map = 0xffffffff;
 120 }
 121
 122 static void
 123 nv04_context_destroy(struct gl_context *ctx)
 124 {
 125         struct nouveau_context *nctx = to_nouveau_context(ctx);
 126
 127         nv04_surface_takedown(ctx);
 128         nv04_render_destroy(ctx);
 129         nouveau_surface_ref(NULL, &to_nv04_context(ctx)->dummy_texture);
 130
 131         nouveau_object_del(&nctx->hw.eng3d);
 132         nouveau_object_del(&nctx->hw.eng3dm);
 133         nouveau_object_del(&nctx->hw.surf3d);
 134
 135         nouveau_context_deinit(ctx);
 136         free(ctx);
 137 }
 138
 139 static struct gl_context *
 140 nv04_context_create(struct nouveau_screen *screen, gl_api api,
 141                     const struct gl_config *visual,
 142                     struct gl_context *share_ctx)
 143 {
 144         struct nv04_context *nctx;
 145         struct nouveau_hw_state *hw;
 146         struct gl_context *ctx;
 147         int ret;
 148
 149         nctx = CALLOC_STRUCT(nv04_context);
 150         if (!nctx)
 151                 return NULL;
 152
 153         ctx = &nctx->base.base;
 154         hw = &nctx->base.hw;
 155
 156         if (!nouveau_context_init(ctx, api, screen, visual, share_ctx))
 157                 goto fail;
 158
 159         /* GL constants. */
 160         ctx->Const.MaxTextureSize = 1024;
 161         ctx->Const.MaxTextureCoordUnits = NV04_TEXTURE_UNITS;
 162         ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = NV04_TEXTURE_UNITS;
 163         ctx->Const.MaxTextureUnits = NV04_TEXTURE_UNITS;
 164         ctx->Const.MaxTextureMaxAnisotropy = 2;
 165         ctx->Const.MaxTextureLodBias = 15;
 166
 167         /* 2D engine. */
 168         ret = nv04_surface_init(ctx);
 169         if (!ret)
 170                 goto fail;
 171
 172         /* 3D engine. */
 173         ret = nouveau_object_new(context_chan(ctx), 0xbeef0001,
 174                                  NV04_TEXTURED_TRIANGLE_CLASS, NULL, 0,
 175                                  &hw->eng3d);
 176         if (ret)
 177                 goto fail;
 178
 179         ret = nouveau_object_new(context_chan(ctx), 0xbeef0002,
 180                                  NV04_MULTITEX_TRIANGLE_CLASS, NULL, 0,
 181                                  &hw->eng3dm);
 182         if (ret)
 183                 goto fail;
 184
 185         ret = nouveau_object_new(context_chan(ctx), 0xbeef0003,
 186                                  NV04_SURFACE_3D_CLASS, NULL, 0,
 187                                  &hw->surf3d);
 188         if (ret)
 189                 goto fail;
 190
 191         init_dummy_texture(ctx);
 192         nv04_hwctx_init(ctx);
 193         nv04_render_init(ctx);
 194
 195         return ctx;
 196
 197 fail:
 198         nv04_context_destroy(ctx);
 199         return NULL;
 200 }
 201
 202 const struct nouveau_driver nv04_driver = {
 203         .context_create = nv04_context_create,
 204         .context_destroy = nv04_context_destroy,
 205         .surface_copy = nv04_surface_copy,
 206         .surface_fill = nv04_surface_fill,
 207         .emit = (nouveau_state_func[]) {
 208                 nv04_defer_control,
 209                 nouveau_emit_nothing,
 210                 nv04_defer_blend,
 211                 nv04_defer_blend,
 212                 nouveau_emit_nothing,
 213                 nouveau_emit_nothing,
 214                 nouveau_emit_nothing,
 215                 nouveau_emit_nothing,
 216                 nouveau_emit_nothing,
 217                 nouveau_emit_nothing,
 218                 nv04_defer_control,
 219                 nouveau_emit_nothing,
 220                 nv04_defer_control,
 221                 nouveau_emit_nothing,
 222                 nv04_defer_control,
 223                 nv04_defer_control,
 224                 nouveau_emit_nothing,
 225                 nv04_emit_framebuffer,
 226                 nv04_defer_blend,
 227                 nouveau_emit_nothing,
 228                 nouveau_emit_nothing,
 229                 nouveau_emit_nothing,
 230                 nouveau_emit_nothing,
 231                 nouveau_emit_nothing,
 232                 nouveau_emit_nothing,
 233                 nouveau_emit_nothing,
 234                 nouveau_emit_nothing,
 235                 nouveau_emit_nothing,
 236                 nouveau_emit_nothing,
 237                 nouveau_emit_nothing,
 238                 nouveau_emit_nothing,
 239                 nouveau_emit_nothing,
 240                 nouveau_emit_nothing,
 241                 nouveau_emit_nothing,
 242                 nouveau_emit_nothing,
 243                 nouveau_emit_nothing,
 244                 nouveau_emit_nothing,
 245                 nouveau_emit_nothing,
 246                 nouveau_emit_nothing,
 247                 nouveau_emit_nothing,
 248                 nouveau_emit_nothing,
 249                 nouveau_emit_nothing,
 250                 nouveau_emit_nothing,
 251                 nouveau_emit_nothing,
 252                 nouveau_emit_nothing,
 253                 nouveau_emit_nothing,
 254                 nouveau_emit_nothing,
 255                 nouveau_emit_nothing,
 256                 nv04_emit_scissor,
 257                 nv04_defer_blend,
 258                 nv04_defer_control,
 259                 nv04_defer_control,
 260                 nv04_defer_control,
 261                 nv04_emit_tex_env,
 262                 nv04_emit_tex_env,
 263                 nouveau_emit_nothing,
 264                 nouveau_emit_nothing,
 265                 nouveau_emit_nothing,
 266                 nouveau_emit_nothing,
 267                 nouveau_emit_nothing,
 268                 nouveau_emit_nothing,
 269                 nouveau_emit_nothing,
 270                 nouveau_emit_nothing,
 271                 nouveau_emit_nothing,
 272                 nouveau_emit_nothing,
 273                 nv04_emit_tex_obj,
 274                 nv04_emit_tex_obj,
 275                 nouveau_emit_nothing,
 276                 nouveau_emit_nothing,
 277                 nouveau_emit_nothing,
 278                 nv04_emit_blend,
 279                 nv04_emit_control,
 280         },
 281         .num_emit = NUM_NV04_STATE,
 282 };