diff options
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_surface.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_surface.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_surface.c b/src/gallium/drivers/nv50/nv50_surface.c new file mode 100644 index 00000000000..5bf97d3a6bf --- /dev/null +++ b/src/gallium/drivers/nv50/nv50_surface.c @@ -0,0 +1,123 @@ +/* + * Copyright 2008 Ben Skeggs + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "nv50_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_winsys.h" +#include "pipe/p_inlines.h" + +#include "util/u_tile.h" + +static void +nv50_surface_copy(struct pipe_context *pipe, boolean flip, + struct pipe_surface *dest, unsigned destx, unsigned desty, + struct pipe_surface *src, unsigned srcx, unsigned srcy, + unsigned width, unsigned height) +{ + struct nv50_context *nv50 = (struct nv50_context *)pipe; + struct nouveau_winsys *nvws = nv50->screen->nvws; + + if (flip) { + desty += height; + while (height--) { + nvws->surface_copy(nvws, dest, destx, desty--, src, + srcx, srcy++, width, 1); + } + } else { + nvws->surface_copy(nvws, dest, destx, desty, src, srcx, srcy, + width, height); + } +} + +static void +nv50_surface_fill(struct pipe_context *pipe, struct pipe_surface *dest, + unsigned destx, unsigned desty, unsigned width, + unsigned height, unsigned value) +{ + struct nv50_context *nv50 = (struct nv50_context *)pipe; + struct nouveau_winsys *nvws = nv50->screen->nvws; + + nvws->surface_fill(nvws, dest, destx, desty, width, height, value); +} + +static void * +nv50_surface_map(struct pipe_screen *screen, struct pipe_surface *ps, + unsigned flags ) +{ + struct nouveau_winsys *nvws = nv50_screen(screen)->nvws; + struct pipe_winsys *ws = screen->winsys; + struct nv50_surface *s = nv50_surface(ps); + struct nv50_surface m = *s; + void *map; + + if (!s->untiled) { + s->untiled = ws->buffer_create(ws, 0, 0, ps->buffer->size); + + m.base.buffer = s->untiled; + nvws->surface_copy(nvws, &m.base, 0, 0, &s->base, 0, 0, + ps->width, ps->height); + } + + /* Map original tiled surface to disallow it being validated while + * untiled mirror is mapped. + */ + ws->buffer_map(ws, ps->buffer, flags); + + map = ws->buffer_map(ws, s->untiled, flags); + if (!map) + return NULL; + + return map; +} + +static void +nv50_surface_unmap(struct pipe_screen *pscreen, struct pipe_surface *ps) +{ + struct nouveau_winsys *nvws = nv50_screen(pscreen)->nvws; + struct pipe_winsys *ws = pscreen->winsys; + struct nv50_surface *s = nv50_surface(ps); + struct nv50_surface m = *s; + + ws->buffer_unmap(ws, s->untiled); + ws->buffer_unmap(ws, ps->buffer); + + m.base.buffer = s->untiled; + nvws->surface_copy(nvws, &s->base, 0, 0, &m.base, 0, 0, + ps->width, ps->height); + + pipe_buffer_reference(pscreen, &s->untiled, NULL); +} + +void +nv50_init_surface_functions(struct nv50_context *nv50) +{ + nv50->pipe.surface_copy = nv50_surface_copy; + nv50->pipe.surface_fill = nv50_surface_fill; +} + +void +nv50_surface_init_screen_functions(struct pipe_screen *pscreen) +{ + pscreen->surface_map = nv50_surface_map; + pscreen->surface_unmap = nv50_surface_unmap; +} + |