diff options
Diffstat (limited to 'devices/gdevicov.c')
| -rw-r--r-- | devices/gdevicov.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/devices/gdevicov.c b/devices/gdevicov.c index 4f4d7f5cd..ad9a903ca 100644 --- a/devices/gdevicov.c +++ b/devices/gdevicov.c @@ -37,18 +37,20 @@ static int cov_write_page(gx_device_printer *pdev, gp_file *file) { - int code = 0; + int code = 0, ecode = 0; int raster = gdev_prn_raster(pdev); int height = pdev->height; byte *line = gs_alloc_bytes(pdev->memory, raster, "ink coverage plugin buffer"); int y; uint64_t c_pix = 0, m_pix = 0, y_pix = 0, k_pix = 0, total_pix = 0; + if (line == NULL) + return gs_error_VMerror; for (y = 0; y < height; y++) { byte *row, *end; - code = gdev_prn_get_bits(pdev, y, line, &row); - if (code < 0) + ecode = gdev_prn_get_bits(pdev, y, line, &row); + if (ecode < 0) break; end = row + raster; @@ -90,14 +92,14 @@ cov_write_page(gx_device_printer *pdev, gp_file *file) } } - return 0; + return (code < 0) ? ecode : 0; } /* cov_write_page2 gave ink coverage values not ratecoverage */ static int cov_write_page_ink(gx_device_printer *pdev, gp_file *file) { - int code = 0; + int code = 0, ecode = 0; int raster = gdev_prn_raster(pdev); int height = pdev->height; double dc_pix=0; @@ -109,11 +111,13 @@ static int cov_write_page_ink(gx_device_printer *pdev, gp_file *file) int y; uint64_t total_pix = 0; + if (line == NULL) + return gs_error_VMerror; for (y = 0; y < height; y++) { byte *row, *end; - code = gdev_prn_get_bits(pdev, y, line, &row); - if (code < 0) + ecode = gdev_prn_get_bits(pdev, y, line, &row); + if (ecode < 0) break; end = row + raster; @@ -159,7 +163,7 @@ static int cov_write_page_ink(gx_device_printer *pdev, gp_file *file) } } - return 0; + return (code < 0) ? ecode : 0; } static const gx_device_procs cov_procs = |