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 {
  37         struct gl_texture_object *t = u->_Current;
  38         struct gl_texture_image *ti = t->Image[0][t->BaseLevel];
  39
  40         return ti->TexFormat == MESA_FORMAT_A_UNORM8 ||
  41                 ti->TexFormat == MESA_FORMAT_L_UNORM8 ||
  42                 u->EnvMode == GL_COMBINE ||
  43                 u->EnvMode == GL_COMBINE4_NV ||
  44                 u->EnvMode == GL_BLEND ||
  45                 u->EnvMode == GL_ADD;
  46 }
  47
  48 struct nouveau_object *
  49 nv04_context_engine(struct gl_context *ctx)
  50 {
  51         struct nv04_context *nctx = to_nv04_context(ctx);
  52         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  53         struct nouveau_pushbuf *push = context_push(ctx);
  54         struct nouveau_object *fahrenheit;
  55
  56         if ((ctx->Texture.Unit[0]._Current &&
  57              texunit_needs_combiners(&ctx->Texture.Unit[0])) ||
  58             ctx->Texture.Unit[1]._Current ||
  59             ctx->Stencil.Enabled ||
  60             !(ctx->Color.ColorMask[0][RCOMP] &&
  61               ctx->Color.ColorMask[0][GCOMP] &&
  62               ctx->Color.ColorMask[0][BCOMP] &&
  63               ctx->Color.ColorMask[0][ACOMP]))
  64                 fahrenheit = hw->eng3dm;
  65         else
  66                 fahrenheit = hw->eng3d;
  67
  68         if (fahrenheit != nctx->eng3d) {
  69                 BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
  70                 PUSH_DATA (push, fahrenheit->handle);
  71                 nctx->eng3d = fahrenheit;
  72         }
  73
  74         return fahrenheit;
  75 }
  76
  77 static void
  78 nv04_hwctx_init(struct gl_context *ctx)
  79 {
  80         struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
  81         struct nouveau_pushbuf *push = context_push(ctx);
  82         struct nv04_fifo *fifo = hw->chan->data;
  83
  84         BEGIN_NV04(push, NV01_SUBC(SURF, OBJECT), 1);
  85         PUSH_DATA (push, hw->surf3d->handle);
  86         BEGIN_NV04(push, NV04_SF3D(DMA_NOTIFY), 3);
  87         PUSH_DATA (push, hw->ntfy->handle);
  88         PUSH_DATA (push, fifo->vram);
  89         PUSH_DATA (push, fifo->vram);
  90
  91         BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
  92         PUSH_DATA (push, hw->eng3d->handle);
  93         BEGIN_NV04(push, NV04_TTRI(DMA_NOTIFY), 4);
  94         PUSH_DATA (push, hw->ntfy->handle);
  95         PUSH_DATA (push, fifo->vram);
  96         PUSH_DATA (push, fifo->gart);
  97         PUSH_DATA (push, hw->surf3d->handle);
  98
  99         BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
 100         PUSH_DATA (push, hw->eng3dm->handle);
 101         BEGIN_NV04(push, NV04_MTRI(DMA_NOTIFY), 4);
 102         PUSH_DATA (push, hw->ntfy->handle);
 103         PUSH_DATA (push, fifo->vram);
 104         PUSH_DATA (push, fifo->gart);
 105         PUSH_DATA (push, hw->surf3d->handle);
 106
 107         PUSH_KICK (push);
 108 }
 109
 110 static void
 111 init_dummy_texture(struct gl_context *ctx)
 112 {
 113         struct nouveau_surface *s = &to_nv04_context(ctx)->dummy_texture;
 114
 115         nouveau_surface_alloc(ctx, s, SWIZZLED,
 116                               NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM,
 117                               MESA_FORMAT_B8G8R8A8_UNORM, 1, 1);
 118
 119         nouveau_bo_map(s->bo, NOUVEAU_BO_WR, context_client(ctx));
 120         *(uint32_t *)s->bo->map = 0xffffffff;
 121 }
 122
 123 static void
 124 nv04_context_destroy(struct gl_context *ctx)
 125 {
 126         struct nouveau_context *nctx = to_nouveau_context(ctx);
 127
 128         nv04_surface_takedown(ctx);
 129         nv04_render_destroy(ctx);
 130         nouveau_surface_ref(NULL, &to_nv04_context(ctx)->dummy_texture);
 131
 132         nouveau_object_del(&nctx->hw.eng3d);
 133         nouveau_object_del(&nctx->hw.eng3dm);
 134         nouveau_object_del(&nctx->hw.surf3d);
 135
 136         nouveau_context_deinit(ctx);
 137         free(ctx);
 138 }
 139
 140 static struct gl_context *
 141 nv04_context_create(struct nouveau_screen *screen, gl_api api,
 142                     const struct gl_config *visual,
 143                     struct gl_context *share_ctx)
 144 {
 145         struct nv04_context *nctx;
 146         struct nouveau_hw_state *hw;
 147         struct gl_context *ctx;
 148         int ret;
 149
 150         nctx = CALLOC_STRUCT(nv04_context);
 151         if (!nctx)
 152                 return NULL;
 153
 154         ctx = &nctx->base.base;
 155         hw = &nctx->base.hw;
 156
 157         if (!nouveau_context_init(ctx, api, screen, visual, share_ctx))
 158                 goto fail;
 159
 160         /* GL constants. */
 161         ctx->Const.MaxTextureLevels = 11;
 162         ctx->Const.MaxTextureCoordUnits = NV04_TEXTURE_UNITS;
 163         ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = NV04_TEXTURE_UNITS;
 164         ctx->Const.MaxTextureUnits = NV04_TEXTURE_UNITS;
 165         ctx->Const.MaxTextureMaxAnisotropy = 2;
 166         ctx->Const.MaxTextureLodBias = 15;
 167
 168         /* 2D engine. */
 169         ret = nv04_surface_init(ctx);
 170         if (!ret)
 171                 goto fail;
 172
 173         /* 3D engine. */
 174         ret = nouveau_object_new(context_chan(ctx), 0xbeef0001,
 175                                  NV04_TEXTURED_TRIANGLE_CLASS, NULL, 0,
 176                                  &hw->eng3d);
 177         if (ret)
 178                 goto fail;
 179
 180         ret = nouveau_object_new(context_chan(ctx), 0xbeef0002,
 181                                  NV04_MULTITEX_TRIANGLE_CLASS, NULL, 0,
 182                                  &hw->eng3dm);
 183         if (ret)
 184                 goto fail;
 185
 186         ret = nouveau_object_new(context_chan(ctx), 0xbeef0003,
 187                                  NV04_SURFACE_3D_CLASS, NULL, 0,
 188                                  &hw->surf3d);
 189         if (ret)
 190                 goto fail;
 191
 192         init_dummy_texture(ctx);
 193         nv04_hwctx_init(ctx);
 194         nv04_render_init(ctx);
 195
 196         return ctx;
 197
 198 fail:
 199         nv04_context_destroy(ctx);
 200         return NULL;
 201 }
 202
 203 const struct nouveau_driver nv04_driver = {
 204         .context_create = nv04_context_create,
 205         .context_destroy = nv04_context_destroy,
 206         .surface_copy = nv04_surface_copy,
 207         .surface_fill = nv04_surface_fill,
 208         .emit = (nouveau_state_func[]) {
 209                 nv04_defer_control,
 210                 nouveau_emit_nothing,
 211                 nv04_defer_blend,
 212                 nv04_defer_blend,
 213                 nouveau_emit_nothing,
 214                 nouveau_emit_nothing,
 215                 nouveau_emit_nothing,
 216                 nouveau_emit_nothing,
 217                 nouveau_emit_nothing,
 218                 nouveau_emit_nothing,
 219                 nv04_defer_control,
 220                 nouveau_emit_nothing,
 221                 nv04_defer_control,
 222                 nouveau_emit_nothing,
 223                 nv04_defer_control,
 224                 nv04_defer_control,
 225                 nouveau_emit_nothing,
 226                 nv04_emit_framebuffer,
 227                 nv04_defer_blend,
 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                 nouveau_emit_nothing,
 257                 nv04_emit_scissor,
 258                 nv04_defer_blend,
 259                 nv04_defer_control,
 260                 nv04_defer_control,
 261                 nv04_defer_control,
 262                 nv04_emit_tex_env,
 263                 nv04_emit_tex_env,
 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                 nouveau_emit_nothing,
 274                 nv04_emit_tex_obj,
 275                 nv04_emit_tex_obj,
 276                 nouveau_emit_nothing,
 277                 nouveau_emit_nothing,
 278                 nouveau_emit_nothing,
 279                 nv04_emit_blend,
 280                 nv04_emit_control,
 281         },
 282         .num_emit = NUM_NV04_STATE,
 283 };