Module: Mesa Branch: gallium-resources Commit: 072957aab25affecf0702e925310e46c694a5ee4 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=072957aab25affecf0702e925310e46c694a5ee4
Author: Keith Whitwell <[email protected]> Date: Sun Mar 14 09:42:46 2010 +0000 util: helpers for inline transfers --- src/gallium/auxiliary/Makefile | 3 +- src/gallium/auxiliary/util/u_transfer.c | 98 +++++++++++++++++++++++++++++++ src/gallium/auxiliary/util/u_transfer.h | 25 ++++++++ 3 files changed, 125 insertions(+), 1 deletions(-) diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile index d1dcb7b..ccc8338 100644 --- a/src/gallium/auxiliary/Makefile +++ b/src/gallium/auxiliary/Makefile @@ -127,14 +127,15 @@ C_SOURCES = \ util/u_surface.c \ util/u_texture.c \ util/u_tile.c \ + util/u_transfer.c \ util/u_upload_mgr.c \ + target-helpers/wrap_screen.c # Disabling until pipe-video branch gets merged in #vl/vl_bitstream_parser.c \ #vl/vl_mpeg12_mc_renderer.c \ #vl/vl_compositor.c \ #vl/vl_csc.c \ #vl/vl_shader_build.c \ - target-helpers/wrap_screen.c GALLIVM_SOURCES = \ gallivm/lp_bld_alpha.c \ diff --git a/src/gallium/auxiliary/util/u_transfer.c b/src/gallium/auxiliary/util/u_transfer.c new file mode 100644 index 0000000..d0ea89f --- /dev/null +++ b/src/gallium/auxiliary/util/u_transfer.c @@ -0,0 +1,98 @@ +#include "pipe/p_context.h" +#include "util/u_rect.h" +#include "util/u_inlines.h" +#include "util/u_transfer.h" + +/* One-shot transfer operation with data supplied in a user + * pointer. XXX: strides?? + */ +void u_transfer_inline_write( struct pipe_context *pipe, + struct pipe_resource *resource, + struct pipe_subresource sr, + enum pipe_transfer_usage usage, + const struct pipe_box *box, + const void *data ) +{ + struct pipe_transfer *transfer = NULL; + uint8_t *map = NULL; + + transfer = pipe->get_transfer(pipe, + resource, + sr, + usage, + box ); + if (transfer == NULL) + goto out; + + map = pipe_transfer_map(pipe, transfer); + if (map == NULL) + goto out; + + assert(box->depth == 1); /* XXX: fix me */ + + util_copy_rect(map, + resource->format, + transfer->stride, /* bytes? */ + 0, 0, + box->width, + box->height, + data, + box->width, /* bytes? texels? */ + 0, 0); + +out: + if (map) + pipe_transfer_unmap(pipe, transfer); + + if (transfer) + pipe_transfer_destroy(pipe, transfer); +} + + + +/* One-shot read transfer operation with data returned in a user + * pointer. XXX: strides?? + */ +void u_transfer_inline_read( struct pipe_context *pipe, + struct pipe_resource *resource, + struct pipe_subresource sr, + enum pipe_transfer_usage usage, + const struct pipe_box *box, + void *data ) +{ + struct pipe_transfer *transfer = NULL; + uint8_t *map = NULL; + + transfer = pipe->get_transfer(pipe, + resource, + sr, + usage, + box ); + if (transfer == NULL) + goto out; + + map = pipe_transfer_map(pipe, transfer); + if (map == NULL) + goto out; + + assert(box->depth == 1); /* XXX: fix me */ + + util_copy_rect(data, + resource->format, + transfer->stride, /* bytes? */ + 0, 0, + box->width, + box->height, + map, + box->width, /* bytes? texels? */ + 0, 0); + + +out: + if (map) + pipe_transfer_unmap(pipe, transfer); + + if (transfer) + pipe_transfer_destroy(pipe, transfer); +} + diff --git a/src/gallium/auxiliary/util/u_transfer.h b/src/gallium/auxiliary/util/u_transfer.h new file mode 100644 index 0000000..eeef88d --- /dev/null +++ b/src/gallium/auxiliary/util/u_transfer.h @@ -0,0 +1,25 @@ + +#ifndef U_TRANSFER_H +#define U_TRANSFER_H + +/* Fallback implementations for inline read/writes which just go back + * to the regular transfer behaviour. + */ +#include "pipe/p_state.h" + +struct pipe_context; + + +void u_transfer_inline_write( struct pipe_context *pipe, + struct pipe_resource *resource, + struct pipe_subresource sr, + enum pipe_transfer_usage usage, + const struct pipe_box *box, + const void *data ); +void u_transfer_inline_read( struct pipe_context *pipe, + struct pipe_resource *resource, + struct pipe_subresource sr, + enum pipe_transfer_usage usage, + const struct pipe_box *box, + void *data ); +#endif _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
