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#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 pipe_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;
}
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