0,0 → 1,101 |
/************************************************************************** |
* |
* Copyright 2009 VMware, Inc. |
* All Rights Reserved. |
* |
* 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 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 VMWARE AND/OR ITS 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. |
* |
**************************************************************************/ |
|
/** |
* Functions for converting tiled data to linear and vice versa. |
*/ |
|
|
#include "util/u_debug.h" |
#include "u_linear.h" |
|
void |
pipe_linear_to_tile(size_t src_stride, const void *src_ptr, |
struct pipe_tile_info *t, void *dst_ptr) |
{ |
int x, y, z; |
char *ptr; |
size_t bytes = t->cols * t->block.size; |
char *dst_ptr2 = (char *) dst_ptr; |
|
assert(pipe_linear_check_tile(t)); |
|
/* lets write lineary to the tiled buffer */ |
for (y = 0; y < t->tiles_y; y++) { |
for (x = 0; x < t->tiles_x; x++) { |
/* this inner loop could be replace with SSE magic */ |
ptr = (char*)src_ptr + src_stride * t->rows * y + bytes * x; |
for (z = 0; z < t->rows; z++) { |
memcpy(dst_ptr2, ptr, bytes); |
dst_ptr2 += bytes; |
ptr += src_stride; |
} |
} |
} |
} |
|
void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr, |
size_t dst_stride, void *dst_ptr) |
{ |
int x, y, z; |
char *ptr; |
size_t bytes = t->cols * t->block.size; |
const char *src_ptr2 = (const char *) src_ptr; |
|
/* lets read lineary from the tiled buffer */ |
for (y = 0; y < t->tiles_y; y++) { |
for (x = 0; x < t->tiles_x; x++) { |
/* this inner loop could be replace with SSE magic */ |
ptr = (char*)dst_ptr + dst_stride * t->rows * y + bytes * x; |
for (z = 0; z < t->rows; z++) { |
memcpy(ptr, src_ptr2, bytes); |
src_ptr2 += bytes; |
ptr += dst_stride; |
} |
} |
} |
} |
|
void |
pipe_linear_fill_info(struct pipe_tile_info *t, |
const struct u_linear_format_block *block, |
unsigned tile_width, unsigned tile_height, |
unsigned tiles_x, unsigned tiles_y) |
{ |
t->block = *block; |
|
t->tile.width = tile_width; |
t->tile.height = tile_height; |
t->cols = t->tile.width / t->block.width; |
t->rows = t->tile.height / t->block.height; |
t->tile.size = t->cols * t->rows * t->block.size; |
|
t->tiles_x = tiles_x; |
t->tiles_y = tiles_y; |
t->stride = t->cols * t->tiles_x * t->block.size; |
t->size = t->tiles_x * t->tiles_y * t->tile.size; |
} |