#include "pipe/p_defines.h"
#include "pipe/p_format.h"
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "util/u_format.h"
#include "util/u_rect.h"
* src_pitch may be negative to do vertical flip of pixels from source.
*/
void
-pipe_copy_rect(ubyte * dst,
- const struct pipe_format_block *block,
+util_copy_rect(ubyte * dst,
+ enum pipe_format format,
unsigned dst_stride,
unsigned dst_x,
unsigned dst_y,
{
unsigned i;
int src_stride_pos = src_stride < 0 ? -src_stride : src_stride;
+ int blocksize = util_format_get_blocksize(format);
+ int blockwidth = util_format_get_blockwidth(format);
+ int blockheight = util_format_get_blockheight(format);
- assert(block->size > 0);
- assert(block->width > 0);
- assert(block->height > 0);
+ assert(blocksize > 0);
+ assert(blockwidth > 0);
+ assert(blockheight > 0);
assert(src_x >= 0);
assert(src_y >= 0);
assert(dst_x >= 0);
assert(dst_y >= 0);
- dst_x /= block->width;
- dst_y /= block->height;
- width = (width + block->width - 1)/block->width;
- height = (height + block->height - 1)/block->height;
- src_x /= block->width;
- src_y /= block->height;
+ dst_x /= blockwidth;
+ dst_y /= blockheight;
+ width = (width + blockwidth - 1)/blockwidth;
+ height = (height + blockheight - 1)/blockheight;
+ src_x /= blockwidth;
+ src_y /= blockheight;
- dst += dst_x * block->size;
- src += src_x * block->size;
+ dst += dst_x * blocksize;
+ src += src_x * blocksize;
dst += dst_y * dst_stride;
src += src_y * src_stride_pos;
- width *= block->size;
+ width *= blocksize;
if (width == dst_stride && width == src_stride)
memcpy(dst, src, height * width);
}
void
-pipe_fill_rect(ubyte * dst,
- const struct pipe_format_block *block,
+util_fill_rect(ubyte * dst,
+ enum pipe_format format,
unsigned dst_stride,
unsigned dst_x,
unsigned dst_y,
{
unsigned i, j;
unsigned width_size;
+ int blocksize = util_format_get_blocksize(format);
+ int blockwidth = util_format_get_blockwidth(format);
+ int blockheight = util_format_get_blockheight(format);
- assert(block->size > 0);
- assert(block->width > 0);
- assert(block->height > 0);
+ assert(blocksize > 0);
+ assert(blockwidth > 0);
+ assert(blockheight > 0);
assert(dst_x >= 0);
assert(dst_y >= 0);
- dst_x /= block->width;
- dst_y /= block->height;
- width = (width + block->width - 1)/block->width;
- height = (height + block->height - 1)/block->height;
+ dst_x /= blockwidth;
+ dst_y /= blockheight;
+ width = (width + blockwidth - 1)/blockwidth;
+ height = (height + blockheight - 1)/blockheight;
- dst += dst_x * block->size;
+ dst += dst_x * blocksize;
dst += dst_y * dst_stride;
- width_size = width * block->size;
+ width_size = width * blocksize;
- switch (block->size) {
+ switch (blocksize) {
case 1:
if(dst_stride == width_size)
memset(dst, (ubyte) value, height * width_size);
break;
}
}
+
+
+
+/**
+ * Fallback function for pipe->surface_copy().
+ * Note: (X,Y)=(0,0) is always the upper-left corner.
+ * if do_flip, flip the image vertically on its way from src rect to dst rect.
+ * XXX should probably put this in new u_surface.c file...
+ */
+void
+util_surface_copy(struct pipe_context *pipe,
+ boolean do_flip,
+ struct pipe_surface *dst,
+ unsigned dst_x, unsigned dst_y,
+ struct pipe_surface *src,
+ unsigned src_x, unsigned src_y,
+ unsigned w, unsigned h)
+{
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_transfer *src_trans, *dst_trans;
+ void *dst_map;
+ const void *src_map;
+ enum pipe_format src_format, dst_format;
+
+ assert(src->texture && dst->texture);
+ if (!src->texture || !dst->texture)
+ return;
+
+ src_format = src->texture->format;
+ dst_format = dst->texture->format;
+
+ src_trans = screen->get_tex_transfer(screen,
+ src->texture,
+ src->face,
+ src->level,
+ src->zslice,
+ PIPE_TRANSFER_READ,
+ src_x, src_y, w, h);
+
+ dst_trans = screen->get_tex_transfer(screen,
+ dst->texture,
+ dst->face,
+ dst->level,
+ dst->zslice,
+ PIPE_TRANSFER_WRITE,
+ dst_x, dst_y, w, h);
+
+ assert(util_format_get_blocksize(dst_format) == util_format_get_blocksize(src_format));
+ assert(util_format_get_blockwidth(dst_format) == util_format_get_blockwidth(src_format));
+ assert(util_format_get_blockheight(dst_format) == util_format_get_blockheight(src_format));
+
+ src_map = pipe->screen->transfer_map(screen, src_trans);
+ dst_map = pipe->screen->transfer_map(screen, dst_trans);
+
+ assert(src_map);
+ assert(dst_map);
+
+ if (src_map && dst_map) {
+ /* If do_flip, invert src_y position and pass negative src stride */
+ util_copy_rect(dst_map,
+ dst_format,
+ dst_trans->stride,
+ 0, 0,
+ w, h,
+ src_map,
+ do_flip ? -(int) src_trans->stride : src_trans->stride,
+ 0,
+ do_flip ? h - 1 : 0);
+ }
+
+ pipe->screen->transfer_unmap(pipe->screen, src_trans);
+ pipe->screen->transfer_unmap(pipe->screen, dst_trans);
+
+ screen->tex_transfer_destroy(src_trans);
+ screen->tex_transfer_destroy(dst_trans);
+}
+
+
+
+#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8))
+
+
+/**
+ * Fallback for pipe->surface_fill() function.
+ * XXX should probably put this in new u_surface.c file...
+ */
+void
+util_surface_fill(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height, unsigned value)
+{
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_transfer *dst_trans;
+ void *dst_map;
+
+ assert(dst->texture);
+ if (!dst->texture)
+ return;
+ dst_trans = screen->get_tex_transfer(screen,
+ dst->texture,
+ dst->face,
+ dst->level,
+ dst->zslice,
+ PIPE_TRANSFER_WRITE,
+ dstx, dsty, width, height);
+
+ dst_map = pipe->screen->transfer_map(screen, dst_trans);
+
+ assert(dst_map);
+
+ if (dst_map) {
+ assert(dst_trans->stride > 0);
+
+ switch (util_format_get_blocksize(dst_trans->texture->format)) {
+ case 1:
+ case 2:
+ case 4:
+ util_fill_rect(dst_map, dst_trans->texture->format, dst_trans->stride,
+ 0, 0, width, height, value);
+ break;
+ case 8:
+ {
+ /* expand the 4-byte clear value to an 8-byte value */
+ ushort *row = (ushort *) dst_map;
+ ushort val0 = UBYTE_TO_USHORT((value >> 0) & 0xff);
+ ushort val1 = UBYTE_TO_USHORT((value >> 8) & 0xff);
+ ushort val2 = UBYTE_TO_USHORT((value >> 16) & 0xff);
+ ushort val3 = UBYTE_TO_USHORT((value >> 24) & 0xff);
+ unsigned i, j;
+ val0 = (val0 << 8) | val0;
+ val1 = (val1 << 8) | val1;
+ val2 = (val2 << 8) | val2;
+ val3 = (val3 << 8) | val3;
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++) {
+ row[j*4+0] = val0;
+ row[j*4+1] = val1;
+ row[j*4+2] = val2;
+ row[j*4+3] = val3;
+ }
+ row += dst_trans->stride/2;
+ }
+ }
+ break;
+ default:
+ assert(0);
+ break;
+ }
+ }
+
+ pipe->screen->transfer_unmap(pipe->screen, dst_trans);
+ screen->tex_transfer_destroy(dst_trans);
+}
projects / mesa.git / blobdiff