*/
+#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "util/u_memory.h"
+#include "util/u_format.h"
+#include "util/u_inlines.h"
+#include "util/u_rect.h"
#include "util/u_surface.h"
/**
- * Compare pipe_framebuffer_state objects.
- * \return TRUE if same, FALSE if different
+ * 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.
*/
-boolean
-util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst,
- const struct pipe_framebuffer_state *src)
+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)
{
- unsigned i;
-
- if (dst->width != src->width ||
- dst->height != src->height)
- return FALSE;
-
- for (i = 0; i < Elements(src->cbufs); i++) {
- if (dst->cbufs[i] != src->cbufs[i]) {
- return FALSE;
- }
- }
-
- if (dst->nr_cbufs != src->nr_cbufs) {
- return FALSE;
+ 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 = pipe_get_transfer(pipe,
+ src->texture,
+ src->face,
+ src->level,
+ src->zslice,
+ PIPE_TRANSFER_READ,
+ src_x, src_y, w, h);
+
+ dst_trans = pipe_get_transfer(pipe,
+ 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->transfer_map(pipe, src_trans);
+ dst_map = pipe->transfer_map(pipe, 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);
}
- if (dst->zsbuf != src->zsbuf) {
- return FALSE;
- }
+ pipe->transfer_unmap(pipe, src_trans);
+ pipe->transfer_unmap(pipe, dst_trans);
- return TRUE;
+ pipe->transfer_destroy(pipe, src_trans);
+ pipe->transfer_destroy(pipe, dst_trans);
}
-/**
- * Copy framebuffer state from src to dst, updating refcounts.
- */
-void
-util_copy_framebuffer_state(struct pipe_framebuffer_state *dst,
- const struct pipe_framebuffer_state *src)
-{
- unsigned i;
-
- dst->width = src->width;
- dst->height = src->height;
- for (i = 0; i < Elements(src->cbufs); i++) {
- pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]);
- }
-
- dst->nr_cbufs = src->nr_cbufs;
-
- pipe_surface_reference(&dst->zsbuf, src->zsbuf);
-}
+#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8))
+/**
+ * Fallback for pipe->surface_fill() function.
+ */
void
-util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb)
+util_surface_fill(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height, unsigned value)
{
- unsigned i;
-
- for (i = 0; i < fb->nr_cbufs; i++) {
- pipe_surface_reference(&fb->cbufs[i], NULL);
+ struct pipe_transfer *dst_trans;
+ void *dst_map;
+
+ assert(dst->texture);
+ if (!dst->texture)
+ return;
+ dst_trans = pipe_get_transfer(pipe,
+ dst->texture,
+ dst->face,
+ dst->level,
+ dst->zslice,
+ PIPE_TRANSFER_WRITE,
+ dstx, dsty, width, height);
+
+ dst_map = pipe->transfer_map(pipe, dst_trans);
+
+ assert(dst_map);
+
+ if (dst_map) {
+ assert(dst_trans->stride > 0);
+
+ switch (util_format_get_blocksize(dst->texture->format)) {
+ case 1:
+ case 2:
+ case 4:
+ util_fill_rect(dst_map, dst->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_surface_reference(&fb->zsbuf, NULL);
-
- fb->width = fb->height = 0;
- fb->nr_cbufs = 0;
+ pipe->transfer_unmap(pipe, dst_trans);
+ pipe->transfer_destroy(pipe, dst_trans);
}
projects / mesa.git / blobdiff