229 lines
11 KiB
Diff
229 lines
11 KiB
Diff
diff --git a/devices/gdev3852.c b/devices/gdev3852.c
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index 2bee8ec..9d99068 100644
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--- a/devices/gdev3852.c
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+++ b/devices/gdev3852.c
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@@ -62,116 +62,117 @@ jetp3852_print_page(gx_device_printer *pdev, FILE *prn_stream)
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#define DATA_SIZE (LINE_SIZE * 8)
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unsigned int cnt_2prn;
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- unsigned int count,tempcnt;
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- unsigned char vtp,cntc1,cntc2;
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- int line_size_color_plane;
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-
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- byte data[DATA_SIZE];
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- byte plane_data[LINE_SIZE * 3];
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-
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- /* Set initial condition for printer */
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- fputs("\033@",prn_stream);
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-
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- /* Send each scan line in turn */
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- { int lnum;
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- int line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
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- int num_blank_lines = 0;
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-
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- if (line_size > DATA_SIZE) {
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- emprintf2(pdev->memory, "invalid resolution and/or width gives line_size = %d, max. is %d\n",
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- line_size, DATA_SIZE);
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- return_error(gs_error_rangecheck);
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- }
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-
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- for ( lnum = 0; lnum < pdev->height; lnum++ )
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- { byte *end_data = data + line_size;
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- gdev_prn_copy_scan_lines(pdev, lnum,
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- (byte *)data, line_size);
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- /* Remove trailing 0s. */
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- while ( end_data > data && end_data[-1] == 0 )
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- end_data--;
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- if ( end_data == data )
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- { /* Blank line */
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- num_blank_lines++;
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- }
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- else
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- { int i;
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- byte *odp;
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- byte *row;
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-
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- /* Pad with 0s to fill out the last */
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- /* block of 8 bytes. */
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- memset(end_data, 0, 7);
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-
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- /* Transpose the data to get pixel planes. */
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- for ( i = 0, odp = plane_data; i < DATA_SIZE;
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- i += 8, odp++
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- )
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- { /* The following is for 16-bit machines */
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+ unsigned int count,tempcnt;
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+ unsigned char vtp,cntc1,cntc2;
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+ int line_size_color_plane;
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+
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+ byte data[DATA_SIZE];
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+ byte plane_data[LINE_SIZE * 3];
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+
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+ /* Initialise data to zeros, otherwise later on, uninitialised bytes in
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+ dp[] can be greater than 7, which breaks spr8[dp[]]. */
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+ memset(data, 0x00, DATA_SIZE);
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+
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+
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+ /* Set initial condition for printer */
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+ fputs("\033@",prn_stream);
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+
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+ /* Send each scan line in turn */
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+ { int lnum;
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+ int line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
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+ int num_blank_lines = 0;
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+
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+ if (line_size > DATA_SIZE) {
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+ emprintf2(pdev->memory, "invalid resolution and/or width gives line_size = %d, max. is %d\n",
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+ line_size, DATA_SIZE);
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+ return_error(gs_error_rangecheck);
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+ }
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+
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+ for ( lnum = 0; lnum < pdev->height; lnum++ )
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+ { byte *end_data = data + line_size;
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+ gdev_prn_copy_scan_lines(pdev, lnum,
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+ (byte *)data, line_size);
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+ /* Remove trailing 0s. */
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+ while ( end_data > data && end_data[-1] == 0 )
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+ end_data--;
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+ if ( end_data == data )
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+ { /* Blank line */
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+ num_blank_lines++;
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+ }
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+ else
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+ { int i;
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+ byte *odp;
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+ byte *row;
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+
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+ /* Transpose the data to get pixel planes. */
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+ for ( i = 0, odp = plane_data; i < DATA_SIZE;
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+ i += 8, odp++
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+ )
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+ { /* The following is for 16-bit machines */
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#define spread3(c)\
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{ 0, c, c*0x100, c*0x101, c*0x10000L, c*0x10001L, c*0x10100L, c*0x10101L }
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- static ulong spr40[8] = spread3(0x40);
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- static ulong spr8[8] = spread3(8);
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- static ulong spr2[8] = spread3(2);
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- register byte *dp = data + i;
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- register ulong pword =
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- (spr40[dp[0]] << 1) +
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- (spr40[dp[1]]) +
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- (spr40[dp[2]] >> 1) +
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- (spr8[dp[3]] << 1) +
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- (spr8[dp[4]]) +
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- (spr8[dp[5]] >> 1) +
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- (spr2[dp[6]]) +
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- (spr2[dp[7]] >> 1);
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- odp[0] = (byte)(pword >> 16);
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- odp[LINE_SIZE] = (byte)(pword >> 8);
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- odp[LINE_SIZE*2] = (byte)(pword);
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- }
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- /* Skip blank lines if any */
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- if ( num_blank_lines > 0 )
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- {
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- /* Do "dot skips" */
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- while(num_blank_lines > 255)
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- {
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- fputs("\033e\377",prn_stream);
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- num_blank_lines -= 255;
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- }
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- vtp = num_blank_lines;
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- fprintf(prn_stream,"\033e%c",vtp);
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- num_blank_lines = 0;
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- }
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-
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- /* Transfer raster graphics in the order R, G, B. */
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- /* Apparently it is stored in B, G, R */
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- /* Calculate the amount of data to send by what */
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- /* Ghostscript tells us the scan line_size in (bytes) */
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-
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- count = line_size / 3;
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- line_size_color_plane = count / 3;
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- cnt_2prn = line_size_color_plane * 3 + 5;
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- tempcnt = cnt_2prn;
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- cntc1 = (tempcnt & 0xFF00) >> 8;
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- cntc2 = (tempcnt & 0x00FF);
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- fprintf(prn_stream, "\033[O%c%c\200\037",cntc2,cntc1);
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- fputc('\000',prn_stream);
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+ static ulong spr40[8] = spread3(0x40);
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+ static ulong spr8[8] = spread3(8);
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+ static ulong spr2[8] = spread3(2);
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+ register byte *dp = data + i;
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+ register ulong pword =
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+ (spr40[dp[0]] << 1) +
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+ (spr40[dp[1]]) +
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+ (spr40[dp[2]] >> 1) +
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+ (spr8[dp[3]] << 1) +
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+ (spr8[dp[4]]) +
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+ (spr8[dp[5]] >> 1) +
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+ (spr2[dp[6]]) +
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+ (spr2[dp[7]] >> 1);
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+ odp[0] = (byte)(pword >> 16);
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+ odp[LINE_SIZE] = (byte)(pword >> 8);
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+ odp[LINE_SIZE*2] = (byte)(pword);
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+ }
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+ /* Skip blank lines if any */
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+ if ( num_blank_lines > 0 )
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+ {
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+ /* Do "dot skips" */
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+ while(num_blank_lines > 255)
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+ {
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+ fputs("\033e\377",prn_stream);
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+ num_blank_lines -= 255;
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+ }
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+ vtp = num_blank_lines;
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+ fprintf(prn_stream,"\033e%c",vtp);
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+ num_blank_lines = 0;
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+ }
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+
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+ /* Transfer raster graphics in the order R, G, B. */
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+ /* Apparently it is stored in B, G, R */
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+ /* Calculate the amount of data to send by what */
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+ /* Ghostscript tells us the scan line_size in (bytes) */
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+
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+ count = line_size / 3;
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+ line_size_color_plane = count / 3;
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+ cnt_2prn = line_size_color_plane * 3 + 5;
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+ tempcnt = cnt_2prn;
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+ cntc1 = (tempcnt & 0xFF00) >> 8;
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+ cntc2 = (tempcnt & 0x00FF);
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+ fprintf(prn_stream, "\033[O%c%c\200\037",cntc2,cntc1);
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+ fputc('\000',prn_stream);
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fputs("\124\124",prn_stream);
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- for ( row = plane_data + LINE_SIZE * 2, i = 0;
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- i < 3; row -= LINE_SIZE, i++ )
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- { int jj;
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- byte ctemp;
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- odp = row;
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- /* Complement bytes */
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- for (jj=0; jj< line_size_color_plane; jj++)
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- { ctemp = *odp;
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- *odp++ = ~ctemp;
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- }
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- fwrite(row, sizeof(byte),
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- line_size_color_plane, prn_stream);
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- }
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- }
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- }
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- }
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+ for ( row = plane_data + LINE_SIZE * 2, i = 0;
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+ i < 3; row -= LINE_SIZE, i++ )
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+ { int jj;
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+ byte ctemp;
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+ odp = row;
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+ /* Complement bytes */
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+ for (jj=0; jj< line_size_color_plane; jj++)
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+ { ctemp = *odp;
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+ *odp++ = ~ctemp;
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+ }
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+ fwrite(row, sizeof(byte),
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+ line_size_color_plane, prn_stream);
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+ }
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+ }
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+ }
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+ }
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/* eject page */
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fputs("\014", prn_stream);
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