diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_blitter.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_blitter.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.h b/mesalib/src/gallium/auxiliary/util/u_blitter.h index 0b5e4aa45..20e69ed5b 100644 --- a/mesalib/src/gallium/auxiliary/util/u_blitter.h +++ b/mesalib/src/gallium/auxiliary/util/u_blitter.h @@ -83,6 +83,15 @@ struct blitter_context enum blitter_attrib_type type, const union pipe_color_union *color); + /** + * Get the next surface layer for the pipe surface, i.e. make a copy + * of the surface and increment the first and last layer by 1. + * + * This callback is exposed, so that drivers can override it if needed. + */ + struct pipe_surface *(*get_next_surface_layer)(struct pipe_context *pipe, + struct pipe_surface *surf); + /* Whether the blitter is running. */ boolean running; @@ -217,14 +226,15 @@ void util_blitter_copy_texture(struct blitter_context *blitter, boolean copy_all_samples); /** - * Same as util_blitter_copy_texture with the capabilities of util_blitter_blit, - * but dst and src are pipe_surface and pipe_sampler_view, respectively. - * The mipmap level and dstz are part of the views. + * This is a generic implementation of pipe->blit, which accepts + * sampler/surface views instead of resources. + * + * The layer and mipmap level are specified by the views. * * Drivers can use this to change resource properties (like format, width, * height) by changing how the views interpret them, instead of changing - * pipe_resource directly. This is usually needed to accelerate copying of - * compressed formats. + * pipe_resource directly. This is used to blit resources of formats which + * are not renderable. * * src_width0 and src_height0 are sampler_view-private properties that * override pipe_resource. The blitter uses them for computation of texture @@ -236,8 +246,7 @@ void util_blitter_copy_texture(struct blitter_context *blitter, */ void util_blitter_blit_generic(struct blitter_context *blitter, struct pipe_surface *dst, - int dstx, int dsty, - unsigned dst_width, unsigned dst_height, + const struct pipe_box *dstbox, struct pipe_sampler_view *src, const struct pipe_box *srcbox, unsigned src_width0, unsigned src_height0, @@ -255,8 +264,7 @@ void util_blitter_blit(struct blitter_context *blitter, void util_blitter_default_dst_texture(struct pipe_surface *dst_templ, struct pipe_resource *dst, unsigned dstlevel, - unsigned dstz, - const struct pipe_box *srcbox); + unsigned dstz); /** * Helper function to initialize a view for copy_texture_view. |