diff options
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 2246c75056..3b39207a45 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -848,6 +848,70 @@ static struct pipe_texture* return (struct pipe_texture*)tex; } +static struct pipe_texture* + r300_texture_from_handle(struct pipe_screen* screen, + const struct pipe_texture* base, + struct winsys_handle *whandle) +{ + struct radeon_winsys* winsys = (struct radeon_winsys*)screen->winsys; + struct r300_screen* rscreen = r300_screen(screen); + struct pipe_buffer *buffer; + struct r300_texture* tex; + unsigned stride; + + /* Support only 2D textures without mipmaps */ + if (base->target != PIPE_TEXTURE_2D || + base->depth0 != 1 || + base->last_level != 0) { + return NULL; + } + + buffer = winsys->buffer_from_handle(winsys, screen, whandle, &stride); + if (!buffer) { + return NULL; + } + + tex = CALLOC_STRUCT(r300_texture); + if (!tex) { + return NULL; + } + + tex->tex = *base; + pipe_reference_init(&tex->tex.reference, 1); + tex->tex.screen = screen; + + tex->stride_override = stride; + tex->pitch[0] = stride / util_format_get_blocksize(base->format); + + r300_setup_flags(tex); + r300_setup_texture_state(rscreen, tex); + + /* one ref already taken */ + tex->buffer = buffer; + + return (struct pipe_texture*)tex; +} + +static boolean + r300_texture_get_handle(struct pipe_screen* screen, + struct pipe_texture *texture, + struct winsys_handle *whandle) +{ + struct radeon_winsys* winsys = (struct radeon_winsys*)screen->winsys; + struct r300_texture* tex = (struct r300_texture*)texture; + unsigned stride; + + if (!tex) { + return FALSE; + } + + stride = r300_texture_get_stride(r300_screen(screen), tex, 0); + + winsys->buffer_get_handle(winsys, tex->buffer, stride, whandle); + + return TRUE; +} + static struct pipe_video_surface * r300_video_surface_create(struct pipe_screen *screen, enum pipe_video_chroma_format chroma_format, @@ -899,6 +963,8 @@ static void r300_video_surface_destroy(struct pipe_video_surface *vsfc) void r300_init_screen_texture_functions(struct pipe_screen* screen) { screen->texture_create = r300_texture_create; + screen->texture_from_handle = r300_texture_from_handle; + screen->texture_get_handle = r300_texture_get_handle; screen->texture_destroy = r300_texture_destroy; screen->get_tex_surface = r300_get_tex_surface; screen->tex_surface_destroy = r300_tex_surface_destroy; |