diff options
Diffstat (limited to 'src/mesa/state_tracker')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_texture.c | 46 |
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 53396c0278..cf20e029a7 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); |