diff options
author | Dave Airlie <airlied@redhat.com> | 2009-02-13 01:11:25 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-02-13 01:11:25 +1000 |
commit | 53116910b10e3b8a05f42970eff311c21808699f (patch) | |
tree | 6831e50a56a02fed324f8cb119e05d837e00d7cf /src/gallium/auxiliary/util/u_linear.h | |
parent | 7e104f9cde94279a902b408e8d1cf21779b393a8 (diff) | |
parent | 0ccbc3c905f0594a35d72887a1f115e148aaa596 (diff) |
Merge remote branch 'origin/master' into radeon-rewrite
Conflicts:
configure.ac
src/mesa/drivers/dri/r200/r200_context.c
src/mesa/drivers/dri/r300/r300_render.c
Diffstat (limited to 'src/gallium/auxiliary/util/u_linear.h')
-rw-r--r-- | src/gallium/auxiliary/util/u_linear.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_linear.h b/src/gallium/auxiliary/util/u_linear.h new file mode 100644 index 0000000000..1589f029bc --- /dev/null +++ b/src/gallium/auxiliary/util/u_linear.h @@ -0,0 +1,61 @@ + +#ifndef U_LINEAR_H +#define U_LINEAR_H + +#include "pipe/p_format.h" + +struct pipe_tile_info +{ + unsigned size; + unsigned stride; + + /* The number of tiles */ + unsigned tiles_x; + unsigned tiles_y; + + /* size of each tile expressed in blocks */ + unsigned cols; + unsigned rows; + + /* Describe the tile in pixels */ + struct pipe_format_block tile; + + /* Describe each block within the tile */ + struct pipe_format_block block; +}; + +void pipe_linear_to_tile(size_t src_stride, const void *src_ptr, + struct pipe_tile_info *t, void *dst_ptr); + +void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr, + size_t dst_stride, void *dst_ptr); + +/** + * Convenience function to fillout a pipe_tile_info struct. + * @t info to fill out. + * @block block info about pixel layout + * @tile_width the width of the tile in pixels + * @tile_height the height of the tile in pixels + * @tiles_x number of tiles in x axis + * @tiles_y number of tiles in y axis + */ +void pipe_linear_fill_info(struct pipe_tile_info *t, + const struct pipe_format_block *block, + unsigned tile_width, unsigned tile_height, + unsigned tiles_x, unsigned tiles_y); + +static INLINE boolean pipe_linear_check_tile(const struct pipe_tile_info *t) +{ + if (t->tile.size != t->block.size * t->cols * t->rows) + return FALSE; + + if (t->stride != t->block.size * t->cols * t->tiles_x) + return FALSE; + + if (t->size < t->stride * t->rows * t->tiles_y) + return FALSE; + + return TRUE; +} + +#endif /* U_LINEAR_H */ |