src/gallium/drivers/nv50/nv50_surface.c

   1 /*
   2  * Copyright 2008 Ben Skeggs
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #define __NOUVEAU_PUSH_H__
  24 #include <stdint.h>
  25 #include "nouveau/nouveau_pushbuf.h"
  26 #include "nv50_context.h"
  27 #include "pipe/p_defines.h"
  28 #include "pipe/internal/p_winsys_screen.h"
  29 #include "pipe/p_inlines.h"
  30
  31 #include "util/u_tile.h"
  32
  33 static INLINE int
  34 nv50_format(enum pipe_format format)
  35 {
  36         switch (format) {
  37         case PIPE_FORMAT_A8R8G8B8_UNORM:
  38         case PIPE_FORMAT_Z24S8_UNORM:
  39                 return NV50_2D_DST_FORMAT_32BPP;
  40         case PIPE_FORMAT_X8R8G8B8_UNORM:
  41                 return NV50_2D_DST_FORMAT_24BPP;
  42         case PIPE_FORMAT_R5G6B5_UNORM:
  43                 return NV50_2D_DST_FORMAT_16BPP;
  44         case PIPE_FORMAT_A8_UNORM:
  45                 return NV50_2D_DST_FORMAT_8BPP;
  46         default:
  47                 return -1;
  48         }
  49 }
  50
  51 static int
  52 nv50_surface_set(struct nv50_screen *screen, struct pipe_surface *ps, int dst)
  53 {
  54         struct nouveau_channel *chan = screen->nvws->channel;
  55         struct nouveau_grobj *eng2d = screen->eng2d;
  56         struct nouveau_bo *bo;
  57         int format, mthd = dst ? NV50_2D_DST_FORMAT : NV50_2D_SRC_FORMAT;
  58         int flags = NOUVEAU_BO_VRAM | (dst ? NOUVEAU_BO_WR : NOUVEAU_BO_RD);
  59
  60         bo = screen->nvws->get_bo(nv50_miptree(ps->texture)->buffer);
  61         if (!bo)
  62                 return 1;
  63
  64         format = nv50_format(ps->format);
  65         if (format < 0)
  66                 return 1;
  67
  68         if (!bo->tiled) {
  69                 BEGIN_RING(chan, eng2d, mthd, 2);
  70                 OUT_RING  (chan, format);
  71                 OUT_RING  (chan, 1);
  72                 BEGIN_RING(chan, eng2d, mthd + 0x14, 5);
  73                 OUT_RING  (chan, ps->stride);
  74                 OUT_RING  (chan, ps->width);
  75                 OUT_RING  (chan, ps->height);
  76                 OUT_RELOCh(chan, bo, ps->offset, flags);
  77                 OUT_RELOCl(chan, bo, ps->offset, flags);
  78         } else {
  79                 BEGIN_RING(chan, eng2d, mthd, 5);
  80                 OUT_RING  (chan, format);
  81                 OUT_RING  (chan, 0);
  82                 OUT_RING  (chan, 0);
  83                 OUT_RING  (chan, 1);
  84                 OUT_RING  (chan, 0);
  85                 BEGIN_RING(chan, eng2d, mthd + 0x18, 4);
  86                 OUT_RING  (chan, ps->width);
  87                 OUT_RING  (chan, ps->height);
  88                 OUT_RELOCh(chan, bo, ps->offset, flags);
  89                 OUT_RELOCl(chan, bo, ps->offset, flags);
  90         }
  91
  92 #if 0
  93         if (dst) {
  94                 BEGIN_RING(chan, eng2d, NV50_2D_CLIP_X, 4);
  95                 OUT_RING  (chan, 0);
  96                 OUT_RING  (chan, 0);
  97                 OUT_RING  (chan, surf->width);
  98                 OUT_RING  (chan, surf->height);
  99         }
 100 #endif
 101
 102         return 0;
 103 }
 104
 105 int
 106 nv50_surface_do_copy(struct nv50_screen *screen, struct pipe_surface *dst,
 107                      int dx, int dy, struct pipe_surface *src, int sx, int sy,
 108                      int w, int h)
 109 {
 110         struct nouveau_channel *chan = screen->nvws->channel;
 111         struct nouveau_grobj *eng2d = screen->eng2d;
 112         int ret;
 113
 114         WAIT_RING (chan, 32);
 115
 116         ret = nv50_surface_set(screen, dst, 1);
 117         if (ret)
 118                 return ret;
 119
 120         ret = nv50_surface_set(screen, src, 0);
 121         if (ret)
 122                 return ret;
 123
 124         BEGIN_RING(chan, eng2d, 0x088c, 1);
 125         OUT_RING  (chan, 0);
 126         BEGIN_RING(chan, eng2d, NV50_2D_BLIT_DST_X, 4);
 127         OUT_RING  (chan, dx);
 128         OUT_RING  (chan, dy);
 129         OUT_RING  (chan, w);
 130         OUT_RING  (chan, h);
 131         BEGIN_RING(chan, eng2d, 0x08c0, 4);
 132         OUT_RING  (chan, 0);
 133         OUT_RING  (chan, 1);
 134         OUT_RING  (chan, 0);
 135         OUT_RING  (chan, 1);
 136         BEGIN_RING(chan, eng2d, 0x08d0, 4);
 137         OUT_RING  (chan, 0);
 138         OUT_RING  (chan, sx);
 139         OUT_RING  (chan, 0);
 140         OUT_RING  (chan, sy);
 141
 142         return 0;
 143 }
 144
 145 static void
 146 nv50_surface_copy(struct pipe_context *pipe, boolean flip,
 147                   struct pipe_surface *dest, unsigned destx, unsigned desty,
 148                   struct pipe_surface *src, unsigned srcx, unsigned srcy,
 149                   unsigned width, unsigned height)
 150 {
 151         struct nv50_context *nv50 = (struct nv50_context *)pipe;
 152         struct nv50_screen *screen = nv50->screen;
 153
 154         assert(src->format == dest->format);
 155
 156         if (flip) {
 157                 desty += height;
 158                 while (height--) {
 159                         nv50_surface_do_copy(screen, dest, destx, desty--, src,
 160                                              srcx, srcy++, width, 1);
 161                 }
 162         } else {
 163                 nv50_surface_do_copy(screen, dest, destx, desty, src, srcx,
 164                                      srcy, width, height);
 165         }
 166 }
 167
 168 static void
 169 nv50_surface_fill(struct pipe_context *pipe, struct pipe_surface *dest,
 170                   unsigned destx, unsigned desty, unsigned width,
 171                   unsigned height, unsigned value)
 172 {
 173         struct nv50_context *nv50 = (struct nv50_context *)pipe;
 174         struct nv50_screen *screen = nv50->screen;
 175         struct nouveau_channel *chan = screen->nvws->channel;
 176         struct nouveau_grobj *eng2d = screen->eng2d;
 177         int format, ret;
 178
 179         format = nv50_format(dest->format);
 180         if (format < 0)
 181                 return;
 182
 183         WAIT_RING (chan, 32);
 184
 185         ret = nv50_surface_set(screen, dest, 1);
 186         if (ret)
 187                 return;
 188
 189         BEGIN_RING(chan, eng2d, 0x0580, 3);
 190         OUT_RING  (chan, 4);
 191         OUT_RING  (chan, format);
 192         OUT_RING  (chan, value);
 193         BEGIN_RING(chan, eng2d, NV50_2D_RECT_X1, 4);
 194         OUT_RING  (chan, destx);
 195         OUT_RING  (chan, desty);
 196         OUT_RING  (chan, width);
 197         OUT_RING  (chan, height);
 198 }
 199
 200 static void *
 201 nv50_surface_map(struct pipe_screen *screen, struct pipe_surface *ps,
 202                  unsigned flags )
 203 {
 204         struct pipe_winsys *ws = screen->winsys;
 205
 206         return ws->buffer_map(ws, nv50_surface_buffer(ps), flags);
 207 }
 208
 209 static void
 210 nv50_surface_unmap(struct pipe_screen *pscreen, struct pipe_surface *ps)
 211 {
 212         struct pipe_winsys *ws = pscreen->winsys;
 213
 214         ws->buffer_unmap(ws, nv50_surface_buffer(ps));
 215 }
 216
 217 void
 218 nv50_init_surface_functions(struct nv50_context *nv50)
 219 {
 220         nv50->pipe.surface_copy = nv50_surface_copy;
 221         nv50->pipe.surface_fill = nv50_surface_fill;
 222 }
 223
 224 void
 225 nv50_surface_init_screen_functions(struct pipe_screen *pscreen)
 226 {
 227         pscreen->surface_map = nv50_surface_map;
 228         pscreen->surface_unmap = nv50_surface_unmap;
 229 }
 230