diff options
Diffstat (limited to 'src/gallium/auxiliary/util')
| -rw-r--r-- | src/gallium/auxiliary/util/u_index_modify.c | 127 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_index_modify.h | 41 |
2 files changed, 168 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_index_modify.c b/src/gallium/auxiliary/util/u_index_modify.c new file mode 100644 index 00000000000..65b079ed537 --- /dev/null +++ b/src/gallium/auxiliary/util/u_index_modify.c @@ -0,0 +1,127 @@ +/* + * Copyright 2010 Marek Olšák <[email protected]> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "pipe/p_context.h" +#include "util/u_index_modify.h" +#include "util/u_inlines.h" + +void util_shorten_ubyte_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, + unsigned count) +{ + struct pipe_screen* screen = context->screen; + struct pipe_resource* new_elts; + unsigned char *in_map; + unsigned short *out_map; + struct pipe_transfer *src_transfer, *dst_transfer; + unsigned i; + + new_elts = pipe_buffer_create(screen, + PIPE_BIND_INDEX_BUFFER, + 2 * count); + + in_map = pipe_buffer_map(context, *elts, PIPE_TRANSFER_READ, &src_transfer); + out_map = pipe_buffer_map(context, new_elts, PIPE_TRANSFER_WRITE, &dst_transfer); + + in_map += start; + + for (i = 0; i < count; i++) { + *out_map = (unsigned short)(*in_map + index_bias); + in_map++; + out_map++; + } + + pipe_buffer_unmap(context, *elts, src_transfer); + pipe_buffer_unmap(context, new_elts, dst_transfer); + + *elts = new_elts; +} + +void util_rebuild_ushort_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, unsigned count) +{ + struct pipe_transfer *in_transfer = NULL; + struct pipe_transfer *out_transfer = NULL; + struct pipe_resource *new_elts; + unsigned short *in_map; + unsigned short *out_map; + unsigned i; + + new_elts = pipe_buffer_create(context->screen, + PIPE_BIND_INDEX_BUFFER, + 2 * count); + + in_map = pipe_buffer_map(context, *elts, + PIPE_TRANSFER_READ, &in_transfer); + out_map = pipe_buffer_map(context, new_elts, + PIPE_TRANSFER_WRITE, &out_transfer); + + in_map += start; + for (i = 0; i < count; i++) { + *out_map = (unsigned short)(*in_map + index_bias); + in_map++; + out_map++; + } + + pipe_buffer_unmap(context, *elts, in_transfer); + pipe_buffer_unmap(context, new_elts, out_transfer); + + *elts = new_elts; +} + +void util_rebuild_uint_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, unsigned count) +{ + struct pipe_transfer *in_transfer = NULL; + struct pipe_transfer *out_transfer = NULL; + struct pipe_resource *new_elts; + unsigned int *in_map; + unsigned int *out_map; + unsigned i; + + new_elts = pipe_buffer_create(context->screen, + PIPE_BIND_INDEX_BUFFER, + 2 * count); + + in_map = pipe_buffer_map(context, *elts, + PIPE_TRANSFER_READ, &in_transfer); + out_map = pipe_buffer_map(context, new_elts, + PIPE_TRANSFER_WRITE, &out_transfer); + + in_map += start; + for (i = 0; i < count; i++) { + *out_map = (unsigned int)(*in_map + index_bias); + in_map++; + out_map++; + } + + pipe_buffer_unmap(context, *elts, in_transfer); + pipe_buffer_unmap(context, new_elts, out_transfer); + + *elts = new_elts; +} diff --git a/src/gallium/auxiliary/util/u_index_modify.h b/src/gallium/auxiliary/util/u_index_modify.h new file mode 100644 index 00000000000..01a6cae94fc --- /dev/null +++ b/src/gallium/auxiliary/util/u_index_modify.h @@ -0,0 +1,41 @@ +/* + * Copyright 2010 Marek Olšák <[email protected]> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef UTIL_INDEX_MODIFY_H +#define UTIL_INDEX_MODIFY_H + +void util_shorten_ubyte_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, + unsigned count); + +void util_rebuild_ushort_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, unsigned count); + +void util_rebuild_uint_elts(struct pipe_context *context, + struct pipe_resource **elts, + int index_bias, + unsigned start, unsigned count); +#endif |