b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
396 lines
11 KiB
C
396 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/vmalloc.h>
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#include <linux/pagemap.h>
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#include <linux/console.h>
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#include <linux/platform_device.h>
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#include <linux/screen_info.h>
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#include "sm750.h"
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#include "sm750_accel.h"
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static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
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{
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writel(regValue, accel->dprBase + offset);
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}
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static inline u32 read_dpr(struct lynx_accel *accel, int offset)
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{
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return readl(accel->dprBase + offset);
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}
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static inline void write_dpPort(struct lynx_accel *accel, u32 data)
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{
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writel(data, accel->dpPortBase);
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}
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void sm750_hw_de_init(struct lynx_accel *accel)
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{
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/* setup 2d engine registers */
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u32 reg, clr;
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write_dpr(accel, DE_MASKS, 0xFFFFFFFF);
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/* dpr1c */
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reg = 0x3;
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clr = DE_STRETCH_FORMAT_PATTERN_XY |
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DE_STRETCH_FORMAT_PATTERN_Y_MASK |
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DE_STRETCH_FORMAT_PATTERN_X_MASK |
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DE_STRETCH_FORMAT_ADDRESSING_MASK |
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DE_STRETCH_FORMAT_SOURCE_HEIGHT_MASK;
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/* DE_STRETCH bpp format need be initialized in setMode routine */
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write_dpr(accel, DE_STRETCH_FORMAT,
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(read_dpr(accel, DE_STRETCH_FORMAT) & ~clr) | reg);
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/* disable clipping and transparent */
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write_dpr(accel, DE_CLIP_TL, 0); /* dpr2c */
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write_dpr(accel, DE_CLIP_BR, 0); /* dpr30 */
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write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
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write_dpr(accel, DE_COLOR_COMPARE, 0);
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clr = DE_CONTROL_TRANSPARENCY | DE_CONTROL_TRANSPARENCY_MATCH |
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DE_CONTROL_TRANSPARENCY_SELECT;
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/* dpr0c */
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write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
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}
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/*
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* set2dformat only be called from setmode functions
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* but if you need dual framebuffer driver,need call set2dformat
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* every time you use 2d function
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*/
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void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
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{
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u32 reg;
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/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
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reg = read_dpr(accel, DE_STRETCH_FORMAT);
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reg &= ~DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK;
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reg |= ((fmt << DE_STRETCH_FORMAT_PIXEL_FORMAT_SHIFT) &
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DE_STRETCH_FORMAT_PIXEL_FORMAT_MASK);
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write_dpr(accel, DE_STRETCH_FORMAT, reg);
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}
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int sm750_hw_fillrect(struct lynx_accel *accel,
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u32 base, u32 pitch, u32 Bpp,
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u32 x, u32 y, u32 width, u32 height,
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u32 color, u32 rop)
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{
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u32 deCtrl;
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if (accel->de_wait() != 0) {
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/*
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* int time wait and always busy,seems hardware
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* got something error
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*/
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pr_debug("De engine always busy\n");
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return -1;
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}
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
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write_dpr(accel, DE_PITCH,
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((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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write_dpr(accel, DE_WINDOW_WIDTH,
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((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
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write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */
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write_dpr(accel, DE_DESTINATION,
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((x << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(y & DE_DESTINATION_Y_MASK)); /* dpr4 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
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deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
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DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
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(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
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write_dpr(accel, DE_CONTROL, deCtrl);
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return 0;
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}
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int sm750_hw_copyarea(
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struct lynx_accel *accel,
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unsigned int sBase, /* Address of source: offset in frame buffer */
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unsigned int sPitch, /* Pitch value of source surface in BYTE */
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unsigned int sx,
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unsigned int sy, /* Starting coordinate of source surface */
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unsigned int dBase, /* Address of destination: offset in frame buffer */
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unsigned int dPitch, /* Pitch value of destination surface in BYTE */
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unsigned int Bpp, /* Color depth of destination surface */
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unsigned int dx,
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unsigned int dy, /* Starting coordinate of destination surface */
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unsigned int width,
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unsigned int height, /* width and height of rectangle in pixel value */
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unsigned int rop2) /* ROP value */
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{
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unsigned int nDirection, de_ctrl;
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nDirection = LEFT_TO_RIGHT;
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/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
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de_ctrl = 0;
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/* If source and destination are the same surface, need to check for overlay cases */
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if (sBase == dBase && sPitch == dPitch) {
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/* Determine direction of operation */
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if (sy < dy) {
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/* +----------+
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* |S |
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* | +----------+
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* | | | |
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* | | | |
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* +---|------+ |
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* | D|
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* +----------+
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*/
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nDirection = BOTTOM_TO_TOP;
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} else if (sy > dy) {
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/* +----------+
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* |D |
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* | +----------+
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* | | | |
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* | | | |
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* +---|------+ |
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* | S|
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* +----------+
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*/
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nDirection = TOP_TO_BOTTOM;
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} else {
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/* sy == dy */
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if (sx <= dx) {
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/* +------+---+------+
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* |S | | D|
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* | | | |
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* | | | |
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* | | | |
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* +------+---+------+
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*/
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nDirection = RIGHT_TO_LEFT;
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} else {
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/* sx > dx */
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/* +------+---+------+
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* |D | | S|
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* | | | |
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* | | | |
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* | | | |
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* +------+---+------+
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*/
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nDirection = LEFT_TO_RIGHT;
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}
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}
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}
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if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT)) {
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sx += width - 1;
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sy += height - 1;
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dx += width - 1;
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dy += height - 1;
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}
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/*
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* Note:
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* DE_FOREGROUND are DE_BACKGROUND are don't care.
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* DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS
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* are set by set deSetTransparency().
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*/
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/*
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* 2D Source Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_SOURCE_BASE, sBase); /* dpr40 */
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/*
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* 2D Destination Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase); /* dpr44 */
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/*
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* Program pitch (distance between the 1st points of two adjacent lines).
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* Note that input pitch is BYTE value, but the 2D Pitch register uses
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* pixel values. Need Byte to pixel conversion.
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*/
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write_dpr(accel, DE_PITCH,
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((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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/*
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* Screen Window width in Pixels.
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* 2D engine uses this value to calculate the linear address in frame buffer
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* for a given point.
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*/
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write_dpr(accel, DE_WINDOW_WIDTH,
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((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
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if (accel->de_wait() != 0)
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return -1;
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write_dpr(accel, DE_SOURCE,
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((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) |
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(sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
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write_dpr(accel, DE_DESTINATION,
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((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
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de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
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((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
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DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
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write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
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return 0;
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}
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static unsigned int deGetTransparency(struct lynx_accel *accel)
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{
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unsigned int de_ctrl;
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de_ctrl = read_dpr(accel, DE_CONTROL);
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de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH |
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DE_CONTROL_TRANSPARENCY_SELECT | DE_CONTROL_TRANSPARENCY);
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return de_ctrl;
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}
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int sm750_hw_imageblit(struct lynx_accel *accel,
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const char *pSrcbuf, /* pointer to start of source buffer in system memory */
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u32 srcDelta, /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
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u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
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u32 dBase, /* Address of destination: offset in frame buffer */
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u32 dPitch, /* Pitch value of destination surface in BYTE */
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u32 bytePerPixel, /* Color depth of destination surface */
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u32 dx,
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u32 dy, /* Starting coordinate of destination surface */
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u32 width,
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u32 height, /* width and height of rectangle in pixel value */
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u32 fColor, /* Foreground color (corresponding to a 1 in the monochrome data */
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u32 bColor, /* Background color (corresponding to a 0 in the monochrome data */
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u32 rop2) /* ROP value */
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{
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unsigned int ulBytesPerScan;
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unsigned int ul4BytesPerScan;
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unsigned int ulBytesRemain;
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unsigned int de_ctrl = 0;
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unsigned char ajRemain[4];
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int i, j;
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startBit &= 7; /* Just make sure the start bit is within legal range */
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ulBytesPerScan = (width + startBit + 7) / 8;
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ul4BytesPerScan = ulBytesPerScan & ~3;
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ulBytesRemain = ulBytesPerScan & 3;
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if (accel->de_wait() != 0)
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return -1;
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/*
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* 2D Source Base.
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* Use 0 for HOST Blt.
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*/
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write_dpr(accel, DE_WINDOW_SOURCE_BASE, 0);
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/* 2D Destination Base.
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* It is an address offset (128 bit aligned)
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* from the beginning of frame buffer.
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*/
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write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase);
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/*
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* Program pitch (distance between the 1st points of two adjacent
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* lines). Note that input pitch is BYTE value, but the 2D Pitch
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* register uses pixel values. Need Byte to pixel conversion.
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*/
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write_dpr(accel, DE_PITCH,
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((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
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DE_PITCH_DESTINATION_MASK) |
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(dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
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/*
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* Screen Window width in Pixels.
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* 2D engine uses this value to calculate the linear address
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* in frame buffer for a given point.
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*/
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write_dpr(accel, DE_WINDOW_WIDTH,
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((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
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DE_WINDOW_WIDTH_DST_MASK) |
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(dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));
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/*
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* Note: For 2D Source in Host Write, only X_K1_MONO field is needed,
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* and Y_K2 field is not used.
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* For mono bitmap, use startBit for X_K1.
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*/
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write_dpr(accel, DE_SOURCE,
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(startBit << DE_SOURCE_X_K1_SHIFT) &
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DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
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write_dpr(accel, DE_DESTINATION,
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((dx << DE_DESTINATION_X_SHIFT) & DE_DESTINATION_X_MASK) |
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(dy & DE_DESTINATION_Y_MASK)); /* dpr04 */
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write_dpr(accel, DE_DIMENSION,
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((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
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(height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
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write_dpr(accel, DE_FOREGROUND, fColor);
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write_dpr(accel, DE_BACKGROUND, bColor);
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de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
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DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
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DE_CONTROL_HOST | DE_CONTROL_STATUS;
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write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));
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/* Write MONO data (line by line) to 2D Engine data port */
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for (i = 0; i < height; i++) {
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/* For each line, send the data in chunks of 4 bytes */
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for (j = 0; j < (ul4BytesPerScan / 4); j++)
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write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));
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if (ulBytesRemain) {
|
|
memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);
|
|
write_dpPort(accel, *(unsigned int *)ajRemain);
|
|
}
|
|
|
|
pSrcbuf += srcDelta;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|