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 (RENDERINPUTS_TEST(tnl->render_inputs_bitset, 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_grobj *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_start(struct gl_context *ctx)
  98 {
  99         swtnl_choose_attrs(ctx);
 100 }
 101
 102 static void
 103 swtnl_finish(struct gl_context *ctx)
 104 {
 105         FIRE_RING(context_chan(ctx));
 106 }
 107
 108 static void
 109 swtnl_primitive(struct gl_context *ctx, GLenum mode)
 110 {
 111 }
 112
 113 static void
 114 swtnl_reset_stipple(struct gl_context *ctx)
 115 {
 116 }
 117
 118 /* Primitive rendering */
 119
 120 #define BEGIN_PRIMITIVE(n)                                              \
 121         struct nouveau_channel *chan = context_chan(ctx);               \
 122         struct nouveau_grobj *fahrenheit = nv04_context_engine(ctx);    \
 123         int vertex_len = TNL_CONTEXT(ctx)->clipspace.vertex_size / 4;   \
 124                                                                         \
 125         if (nv04_mtex_engine(fahrenheit))                               \
 126                 BEGIN_RING(chan, fahrenheit,                            \
 127                            NV04_MULTITEX_TRIANGLE_TLMTVERTEX_SX(0),     \
 128                            n * vertex_len);                             \
 129         else                                                            \
 130                 BEGIN_RING(chan, fahrenheit,                            \
 131                            NV04_TEXTURED_TRIANGLE_TLVERTEX_SX(0),       \
 132                            n * vertex_len);                             \
 133
 134 #define OUT_VERTEX(i)                                           \
 135         OUT_RINGp(chan, _tnl_get_vertex(ctx, i), vertex_len);
 136
 137 #define END_PRIMITIVE(draw)                                             \
 138         if (nv04_mtex_engine(fahrenheit)) {                             \
 139                 BEGIN_RING(chan, fahrenheit,                            \
 140                            NV04_MULTITEX_TRIANGLE_DRAWPRIMITIVE(0), 1); \
 141                 OUT_RING(chan, draw);                                   \
 142         } else {                                                        \
 143                 BEGIN_RING(chan, fahrenheit,                            \
 144                            NV04_TEXTURED_TRIANGLE_DRAWPRIMITIVE(0), 1); \
 145                 OUT_RING(chan, draw);                                   \
 146         }
 147
 148 static void
 149 swtnl_points(struct gl_context *ctx, GLuint first, GLuint last)
 150 {
 151 }
 152
 153 static void
 154 swtnl_line(struct gl_context *ctx, GLuint v1, GLuint v2)
 155 {
 156 }
 157
 158 static void
 159 swtnl_triangle(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3)
 160 {
 161         BEGIN_PRIMITIVE(3);
 162         OUT_VERTEX(v1);
 163         OUT_VERTEX(v2);
 164         OUT_VERTEX(v3);
 165         END_PRIMITIVE(0x102);
 166 }
 167
 168 static void
 169 swtnl_quad(struct gl_context *ctx, GLuint v1, GLuint v2, GLuint v3, GLuint v4)
 170 {
 171         BEGIN_PRIMITIVE(4);
 172         OUT_VERTEX(v1);
 173         OUT_VERTEX(v2);
 174         OUT_VERTEX(v3);
 175         OUT_VERTEX(v4);
 176         END_PRIMITIVE(0x213103);
 177 }
 178
 179 /* TnL initialization. */
 180 void
 181 nv04_render_init(struct gl_context *ctx)
 182 {
 183         TNLcontext *tnl = TNL_CONTEXT(ctx);
 184
 185         tnl->Driver.RunPipeline = _tnl_run_pipeline;
 186         tnl->Driver.Render.Interp = _tnl_interp;
 187         tnl->Driver.Render.CopyPV = _tnl_copy_pv;
 188         tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
 189         tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine;
 190         tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
 191
 192         tnl->Driver.Render.Start = swtnl_start;
 193         tnl->Driver.Render.Finish = swtnl_finish;
 194         tnl->Driver.Render.PrimitiveNotify = swtnl_primitive;
 195         tnl->Driver.Render.ResetLineStipple = swtnl_reset_stipple;
 196
 197         tnl->Driver.Render.Points = swtnl_points;
 198         tnl->Driver.Render.Line = swtnl_line;
 199         tnl->Driver.Render.Triangle = swtnl_triangle;
 200         tnl->Driver.Render.Quad = swtnl_quad;
 201
 202         _tnl_need_projected_coords(ctx, GL_TRUE);
 203         _tnl_init_vertices(ctx, tnl->vb.Size,
 204                            NUM_VERTEX_ATTRS * 4 * sizeof(GLfloat));
 205         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 206         _tnl_wakeup(ctx);
 207 }
 208
 209 void
 210 nv04_render_destroy(struct gl_context *ctx)
 211 {
 212 }