diff options
Diffstat (limited to 'glamor/glamor_transfer.c')
| -rw-r--r-- | glamor/glamor_transfer.c | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/glamor/glamor_transfer.c b/glamor/glamor_transfer.c index 891415565..c920435a6 100644 --- a/glamor/glamor_transfer.c +++ b/glamor/glamor_transfer.c @@ -73,7 +73,9 @@ glamor_upload_boxes(PixmapPtr pixmap, BoxPtr in_boxes, int in_nbox, glamor_make_current(glamor_priv); glPixelStorei(GL_UNPACK_ALIGNMENT, 4); - glPixelStorei(GL_UNPACK_ROW_LENGTH, byte_stride / bytes_per_pixel); + + if (glamor_priv->has_unpack_subimage) + glPixelStorei(GL_UNPACK_ROW_LENGTH, byte_stride / bytes_per_pixel); glamor_pixmap_loop(priv, box_x, box_y) { BoxPtr box = glamor_pixmap_box_at(priv, box_x, box_y); @@ -92,25 +94,34 @@ glamor_upload_boxes(PixmapPtr pixmap, BoxPtr in_boxes, int in_nbox, int y1 = MAX(boxes->y1 + dy_dst, box->y1); int y2 = MIN(boxes->y2 + dy_dst, box->y2); + size_t ofs = (y1 - dy_dst + dy_src) * byte_stride; + ofs += (x1 - dx_dst + dx_src) * bytes_per_pixel; + boxes++; if (x2 <= x1 || y2 <= y1) continue; - glPixelStorei(GL_UNPACK_SKIP_ROWS, y1 - dy_dst + dy_src); - glPixelStorei(GL_UNPACK_SKIP_PIXELS, x1 - dx_dst + dx_src); - - glTexSubImage2D(GL_TEXTURE_2D, 0, - x1 - box->x1, y1 - box->y1, - x2 - x1, y2 - y1, - format, type, - bits); + if (glamor_priv->has_unpack_subimage || + x2 - x1 == byte_stride / bytes_per_pixel) { + glTexSubImage2D(GL_TEXTURE_2D, 0, + x1 - box->x1, y1 - box->y1, + x2 - x1, y2 - y1, + format, type, + bits + ofs); + } else { + for (; y1 < y2; y1++, ofs += byte_stride) + glTexSubImage2D(GL_TEXTURE_2D, 0, + x1 - box->x1, y1 - box->y1, + x2 - x1, 1, + format, type, + bits + ofs); + } } } - glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); - glPixelStorei(GL_UNPACK_SKIP_ROWS, 0); - glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0); + if (glamor_priv->has_unpack_subimage) + glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); } /* @@ -166,7 +177,8 @@ glamor_download_boxes(PixmapPtr pixmap, BoxPtr in_boxes, int in_nbox, glamor_make_current(glamor_priv); glPixelStorei(GL_PACK_ALIGNMENT, 4); - glPixelStorei(GL_PACK_ROW_LENGTH, byte_stride / bytes_per_pixel); + if (glamor_priv->has_pack_subimage) + glPixelStorei(GL_PACK_ROW_LENGTH, byte_stride / bytes_per_pixel); glamor_pixmap_loop(priv, box_x, box_y) { BoxPtr box = glamor_pixmap_box_at(priv, box_x, box_y); @@ -183,20 +195,25 @@ glamor_download_boxes(PixmapPtr pixmap, BoxPtr in_boxes, int in_nbox, int x2 = MIN(boxes->x2 + dx_src, box->x2); int y1 = MAX(boxes->y1 + dy_src, box->y1); int y2 = MIN(boxes->y2 + dy_src, box->y2); + size_t ofs = (y1 - dy_src + dy_dst) * byte_stride; + ofs += (x1 - dx_src + dx_dst) * bytes_per_pixel; boxes++; if (x2 <= x1 || y2 <= y1) continue; - glPixelStorei(GL_PACK_SKIP_PIXELS, x1 - dx_src + dx_dst); - glPixelStorei(GL_PACK_SKIP_ROWS, y1 - dy_src + dy_dst); - glReadPixels(x1 - box->x1, y1 - box->y1, x2 - x1, y2 - y1, format, type, bits); + if (glamor_priv->has_pack_subimage || + x2 - x1 == byte_stride / bytes_per_pixel) { + glReadPixels(x1 - box->x1, y1 - box->y1, x2 - x1, y2 - y1, format, type, bits + ofs); + } else { + for (; y1 < y2; y1++, ofs += byte_stride) + glReadPixels(x1 - box->x1, y1 - box->y1, x2 - x1, 1, format, type, bits + ofs); + } } } - glPixelStorei(GL_PACK_ROW_LENGTH, 0); - glPixelStorei(GL_PACK_SKIP_ROWS, 0); - glPixelStorei(GL_PACK_SKIP_PIXELS, 0); + if (glamor_priv->has_pack_subimage) + glPixelStorei(GL_PACK_ROW_LENGTH, 0); } /* |