summaryrefslogtreecommitdiffstats
path: root/src/mesa
diff options
context:
space:
mode:
authorBrian Paul <brianp@vmware.com>2009-04-15 09:52:04 -0600
committerBrian Paul <brianp@vmware.com>2009-04-15 09:52:04 -0600
commit7b24e58a0ca571d6230ef5076ea352253b81fe6e (patch)
tree6d21f649408c69f96c820ce8474cee4c1a327312 /src/mesa
parent66cdbf945a3ee75d7b8cba5135310a7ebec21289 (diff)
st: check for fast memcpy path in decompress_with_blit()
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/state_tracker/st_cb_texture.c46
1 files changed, 33 insertions, 13 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 53396c02784..cf20e029a7e 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -26,6 +26,7 @@
**************************************************************************/
#include "main/mfeatures.h"
+#include "main/bufferobj.h"
#if FEATURE_convolve
#include "main/convolve.h"
#endif
@@ -837,7 +838,6 @@ decompress_with_blit(GLcontext * ctx, GLenum target, GLint level,
struct pipe_surface *dst_surface;
struct pipe_texture *dst_texture;
struct pipe_transfer *tex_xfer;
- GLuint row;
/* create temp / dest surface */
if (!util_create_rgba_surface(screen, width, height,
@@ -863,20 +863,40 @@ decompress_with_blit(GLcontext * ctx, GLenum target, GLint level,
PIPE_TRANSFER_READ,
0, 0, width, height);
- /* copy/pack data into user buffer */
- /* XXX: to do: look for cases where we can just memcpy() */
- for (row = 0; row < height; row++) {
- const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
- GLfloat rgba[4 * MAX_WIDTH];
- GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, height,
- format, type, row, 0);
-
- /* get float[4] rgba row from surface */
- pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba);
+ pixels = _mesa_map_readpix_pbo(ctx, &ctx->Pack, pixels);
- _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba,
- format, type, dest, &ctx->Pack, transferOps);
+ /* copy/pack data into user buffer */
+ if (st_equal_formats(stImage->pt->format, format, type)) {
+ /* memcpy */
+ const uint bytesPerRow = width * pf_get_size(stImage->pt->format);
+ ubyte *map = screen->transfer_map(screen, tex_xfer);
+ GLuint row;
+ for (row = 0; row < height; row++) {
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+ memcpy(dest, map, bytesPerRow);
+ map += tex_xfer->stride;
+ }
+ screen->transfer_unmap(screen, tex_xfer);
}
+ else {
+ /* format translation via floats */
+ GLuint row;
+ for (row = 0; row < height; row++) {
+ const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
+ GLfloat rgba[4 * MAX_WIDTH];
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+
+ /* get float[4] rgba row from surface */
+ pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba);
+
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
+ type, dest, &ctx->Pack, transferOps);
+ }
+ }
+
+ _mesa_unmap_readpix_pbo(ctx, &ctx->Pack);
/* destroy the temp / dest surface */
util_destroy_rgba_surface(dst_texture, dst_surface);