Module: Mesa Branch: master Commit: b078a613bedb76242af177bee12520203bd63d50 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b078a613bedb76242af177bee12520203bd63d50
Author: Maciej Cencora <[email protected]> Date: Sat Jan 9 20:36:47 2010 +0100 radeon: add texture helper function --- src/mesa/drivers/dri/radeon/radeon_mipmap_tree.c | 26 ++++++++++++++++++++++ src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h | 3 ++ 2 files changed, 29 insertions(+), 0 deletions(-) diff --git a/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.c b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.c index cd843d9..117d695 100644 --- a/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.c +++ b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.c @@ -81,6 +81,32 @@ static unsigned get_compressed_image_size( return rowStride * ((height + blockHeight - 1) / blockHeight); } +static unsigned is_pot(unsigned value) +{ + unsigned m; + + for (m = 1; m < value; m *= 2) {} + + return value == m; +} + +unsigned get_texture_image_row_stride(radeonContextPtr rmesa, gl_format format, unsigned width) +{ + if (_mesa_is_format_compressed(format)) { + return get_aligned_compressed_row_stride(format, width, rmesa->texture_compressed_row_align); + } else { + unsigned row_align; + + if (is_pot(width)) { + row_align = rmesa->texture_row_align - 1; + } else { + row_align = rmesa->texture_rect_row_align - 1; + } + + return (_mesa_format_row_stride(format, width) + row_align) & ~row_align; + } +} + /** * Compute sizes and fill in offset and blit information for the given * image (determined by \p face and \p level). diff --git a/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h index c911688..424bf51 100644 --- a/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h +++ b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h @@ -89,4 +89,7 @@ void radeon_try_alloc_miptree(radeonContextPtr rmesa, radeonTexObj *t); GLuint radeon_miptree_image_offset(radeon_mipmap_tree *mt, GLuint face, GLuint level); uint32_t get_base_teximage_offset(radeonTexObj *texObj); + +unsigned get_texture_image_row_stride(radeonContextPtr rmesa, gl_format format, unsigned width); + #endif /* __RADEON_MIPMAP_TREE_H_ */ _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
