src/mesa/drivers/dri/nouveau/nv04_render.c

   1 /*
   2  * Copyright (C) 2009 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_util.h"
  30 #include "nv04_3d.xml.h"
  31 #include "nv04_driver.h"
  32
  33 #include "tnl/tnl.h"
  34 #include "tnl/t_pipeline.h"
  35 #include "tnl/t_vertex.h"
  36
  37 #define NUM_VERTEX_ATTRS 6
  38
  39 static void
  40 swtnl_update_viewport(struct gl_context *ctx)
  41 {
  42         float *viewport = to_nv04_context(ctx)->viewport;
  43         struct gl_framebuffer *fb = ctx->DrawBuffer;
  44
  45         get_viewport_scale(ctx, viewport);
  46         get_viewport_translate(ctx, &viewport[MAT_TX]);
  47
  48         /* It wants normalized Z coordinates. */
  49         viewport[MAT_SZ] /= fb->_DepthMaxF;
  50         viewport[MAT_TZ] /= fb->_DepthMaxF;
  51 }
  52
  53 static void
  54 swtnl_emit_attr(struct gl_context *ctx, struct tnl_attr_map *m, int attr, int emit)
  55 {
  56         TNLcontext *tnl = TNL_CONTEXT(ctx);
  57
  58         if (tnl->render_inputs_bitset & BITFIELD64_BIT(attr))
  59                 *m = (struct tnl_attr_map) {
  60                         .attrib = attr,
  61                         .format = emit,
  62                 };
  63         else
  64                 *m = (struct tnl_attr_map) {
  65                         .format = EMIT_PAD,
  66                         .offset = _tnl_format_info[emit].attrsize,
  67                 };
  68 }
  69
  70 static void
  71 swtnl_choose_attrs(struct gl_context *ctx)
  72 {
  73         TNLcontext *tnl = TNL_CONTEXT(ctx);
  74         struct nouveau_object *fahrenheit = nv04_context_engine(ctx);
  75         struct nv04_context *nctx = to_nv04_context(ctx);
  76         static struct tnl_attr_map map[NUM_VERTEX_ATTRS];
  77         int n = 0;
  78
  79         tnl->vb.AttribPtr[VERT_ATTRIB_POS] = tnl->vb.NdcPtr;
  80
  81         swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT);
  82         swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA);
  83         swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR);
  84         swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_FOG, EMIT_1UB_1F);
  85         swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX0, EMIT_2F);
  86         if (nv04_mtex_engine(fahrenheit))
  87                 swtnl_emit_attr(ctx, &map[n++], _TNL_ATTRIB_TEX1, EMIT_2F);
  88
  89         swtnl_update_viewport(ctx);
  90
  91         _tnl_install_attrs(ctx, map, n, nctx->viewport, 0);
  92 }
  93
  94 /* TnL renderer entry points */
  95
  96 static void
  97 swtnl_restart_ttri(struct nv04_context *nv04, struct nouveau_pushbuf *push)
  98 {
  99         BEGIN_NV04(push, NV04_TTRI(COLORKEY), 7);
 100         PUSH_DATA (push, nv04->colorkey);
 101         PUSH_RELOC(push, nv04->texture[0]->bo, nv04->texture[0]->offset,
 102                          NOUVEAU_BO_LOW, 0, 0);
 103         PUSH_RELOC(push, nv04->texture[0]->bo, nv04->format[0], NOUVEAU_BO_OR,
 104                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
 105                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
 106         PUSH_DATA (push, nv04->filter[0]);
 107         PUSH_DATA (push, nv04->blend);
 108         PUSH_DATA (push, nv04->ctrl[0] & ~0x3e000000);
 109         PUSH_DATA (push, nv04->fog);
 110 }
 111
 112 static void
 113 swtnl_restart_mtri(struct nv04_context *nv04, struct nouveau_pushbuf *push)
 114 {
 115         BEGIN_NV04(push, NV04_MTRI(OFFSET(0)), 8);
 116         PUSH_RELOC(push, nv04->texture[0]->bo, nv04->texture[0]->offset,
 117                          NOUVEAU_BO_LOW, 0, 0);
 118         PUSH_RELOC(push, nv04->texture[1]->bo, nv04->texture[1]->offset,
 119                          NOUVEAU_BO_LOW, 0, 0);
 120         PUSH_RELOC(push, nv04->texture[0]->bo, nv04->format[0], NOUVEAU_BO_OR,
 121                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
 122                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
 123         PUSH_RELOC(push, nv04->texture[1]->bo, nv04->format[1], NOUVEAU_BO_OR,
 124                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_A,
 125                          NV04_TEXTURED_TRIANGLE_FORMAT_DMA_B);
 126         PUSH_DATA (push, nv04->filter[0]);
 127         PUSH_DATA (push, nv04->filter[1]);
 128         PUSH_DATA (push, nv04->alpha[0]);
 129         PUSH_DATA (push, nv04->color[0]);
 130         BEGIN_NV04(push, NV04_MTRI(COMBINE_ALPHA(1)), 8);
 131         PUSH_DATA (push, nv04->alpha[1]);
 132         PUSH_DATA (push, nv04->color[1]);
 133         PUSH_DATA (push, nv04->factor);
 134         PUSH_DATA (push, nv04->blend & ~0x0000000f);
 135         PUSH_DATA (push, nv04->ctrl[0]);
 136         PUSH_DATA (push, nv04->ctrl[1]);
 137         PUSH_DATA (push, nv04->ctrl[2]);
 138         PUSH_DATA (push, nv04->fog);
 139 }
 140
 141 static inline bool
 142 swtnl_restart(struct gl_context *ctx, int multi, unsigned vertex_size)
 143 {
 144         const int tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
 145         struct nv04_context *nv04 = to_nv04_context(ctx);
 146         struct nouveau_pushbuf *push = context_push(ctx);
 147         struct nouveau_pushbuf_refn refs[] = {
 148                 { nv04->texture[0]->bo, tex_flags },
 149                 { nv04->texture[1]->bo, tex_flags },
 150         };
 151
 152         /* wait for enough space for state, and at least one whole primitive */
 153         if (nouveau_pushbuf_space(push, 32 + (4 * vertex_size), 4, 0) ||
 154             nouveau_pushbuf_refn (push, refs, multi ? 2 : 1))
 155                 return false;
 156
 157         /* emit engine state */
 158         if (multi)
 159                 swtnl_restart_mtri(nv04, push);
 160         else
 161                 swtnl_restart_ttri(nv04, push);
 162
 163         return true;
 164 }
 165
 166 static void
 167 swtnl_start(struct gl_context *ctx)
 168 {
 169         struct nouveau_object *eng3d = nv04_context_engine(ctx);
 170         struct nouveau_pushbuf *push = context_push(ctx);
 171         unsigned vertex_size;
 172
 173         nouveau_pushbuf_bufctx(push, push->user_priv);
 174         nouveau_pushbuf_validate(push);
 175
 176         swtnl_choose_attrs(ctx);
 177
 178         vertex_size = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4;
 179         if (eng3d->oclass == NV04_MULTITEX_TRIANGLE_CLASS)
 180                 swtnl_restart(ctx, 1, vertex_size);
 181         else
 182                 swtnl_restart(ctx, 0, vertex_size);
 183 }
 184
 185 static void
 186 swtnl_finish(struct gl_context *ctx)
 187 {
 188         struct nouveau_pushbuf *push = context_push(ctx);
 189
 190         nouveau_pushbuf_bufctx(push, NULL);
 191 }
 192
 193 static void
 194 swtnl_primitive(struct gl_context *ctx, GLenum mode)
 195 {
 196 }
 197
 198 static void
 199 swtnl_reset_stipple(struct gl_context *ctx)
 200 {
 201 }
 202
 203 /* Primitive rendering */
 204
 205 #define BEGIN_PRIMITIVE(n)                                              \
 206         struct nouveau_object *eng3d = to_nv04_context(ctx)->eng3d;     \
 207         struct nouveau_pushbuf *push = context_push(ctx);               \
 208         int vertex_size = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4;  \
 209         int multi = (eng3d->oclass == NV04_MULTITEX_TRIANGLE_CLASS);    \
 210                                                                         \
 211         if (PUSH_AVAIL(push) < 32 + (n * vertex_size)) {                \
 212                 if (!swtnl_restart(ctx, multi, vertex_size))            \
 213                         return;                                         \
 214         }                                                               \
 215                                                                         \
 216         BEGIN_NV04(push, NV04_TTRI(TLVERTEX_SX(0)), n * vertex_size);
 217
 218 #define OUT_VERTEX(i)                                                   \
 219         PUSH_DATAp(push, _tnl_get_vertex(ctx, i), vertex_size);
 220
 221 #define END_PRIMITIVE(draw)                                             \
 222         if (multi) {                                                    \
 223                 BEGIN_NV04(push, NV04_MTRI(DRAWPRIMITIVE(0)), 1);       \
 224                 PUSH_DATA (push, draw);                                 \
 225         } else {                                                        \
 226                 BEGIN_NV04(push, NV04_TTRI(DRAWPRIMITIVE(0)), 1);       \
 227                 PUSH_DATA (push, draw);                                 \
 228         }
 229
 230 static void
 231 swtnl_points(struct gl_context *ctx, GLuint first, GLuint last)
 232 {
 233 }
 234
 235 static void
 236 swtnl_line(struct gl_context *ctx, GLuint v1, GLuint v2)
 237 {
 238 }
 239
 240 static void
 241 swtnl_triangle(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3)
 242 {
 243         BEGIN_PRIMITIVE(3);
 244         OUT_VERTEX(v1);
 245         OUT_VERTEX(v2);
 246         OUT_VERTEX(v3);
 247         END_PRIMITIVE(0x102);
 248 }
 249
 250 static void
 251 swtnl_quad(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3, GLuint v4)
 252 {
 253         BEGIN_PRIMITIVE(4);
 254         OUT_VERTEX(v1);
 255         OUT_VERTEX(v2);
 256         OUT_VERTEX(v3);
 257         OUT_VERTEX(v4);
 258         END_PRIMITIVE(0x213103);
 259 }
 260
 261 /* TnL initialization. */
 262 void
 263 nv04_render_init(struct gl_context *ctx)
 264 {
 265         TNLcontext *tnl = TNL_CONTEXT(ctx);
 266
 267         tnl->Driver.RunPipeline = _tnl_run_pipeline;
 268         tnl->Driver.Render.Interp = _tnl_interp;
 269         tnl->Driver.Render.CopyPV = _tnl_copy_pv;
 270         tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
 271         tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine;
 272         tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
 273
 274         tnl->Driver.Render.Start = swtnl_start;
 275         tnl->Driver.Render.Finish = swtnl_finish;
 276         tnl->Driver.Render.PrimitiveNotify = swtnl_primitive;
 277         tnl->Driver.Render.ResetLineStipple = swtnl_reset_stipple;
 278
 279         tnl->Driver.Render.Points = swtnl_points;
 280         tnl->Driver.Render.Line = swtnl_line;
 281         tnl->Driver.Render.Triangle = swtnl_triangle;
 282         tnl->Driver.Render.Quad = swtnl_quad;
 283
 284         _tnl_need_projected_coords(ctx, GL_TRUE);
 285         _tnl_init_vertices(ctx, tnl->vb.Size,
 286                            NUM_VERTEX_ATTRS * 4 * sizeof(GLfloat));
 287         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 288 }
 289
 290 void
 291 nv04_render_destroy(struct gl_context *ctx)
 292 {
 293 }