diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_screen.c')
-rw-r--r-- | src/gallium/drivers/i915simple/i915_screen.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c index 631642e1b6b..dcd349e478b 100644 --- a/src/gallium/drivers/i915simple/i915_screen.c +++ b/src/gallium/drivers/i915simple/i915_screen.c @@ -200,6 +200,35 @@ i915_destroy_screen( struct pipe_screen *screen ) } +static void * +i915_surface_map( struct pipe_screen *screen, + struct pipe_surface *surface, + unsigned flags ) +{ + char *map = screen->winsys->buffer_map( screen->winsys, surface->buffer, flags ); + if (map == NULL) + return NULL; + + if (surface->texture && + (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) + { + /* Do something to notify contexts of a texture change. + */ + /* i915_screen(screen)->timestamp++; */ + } + + return map + surface->offset; +} + +static void +i915_surface_unmap(struct pipe_screen *screen, + struct pipe_surface *surface) +{ + screen->winsys->buffer_unmap( screen->winsys, surface->buffer ); +} + + + /** * Create a new i915_screen object */ @@ -243,6 +272,8 @@ i915_create_screen(struct pipe_winsys *winsys, uint pci_id) i915screen->screen.get_param = i915_get_param; i915screen->screen.get_paramf = i915_get_paramf; i915screen->screen.is_format_supported = i915_is_format_supported; + i915screen->screen.surface_map = i915_surface_map; + i915screen->screen.surface_unmap = i915_surface_unmap; i915_init_screen_texture_functions(&i915screen->screen); |