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-rw-r--r--meta/recipes-qt/qt4/qt4-4.8.3/0012-Add-2bpp-support.patch318
1 files changed, 318 insertions, 0 deletions
diff --git a/meta/recipes-qt/qt4/qt4-4.8.3/0012-Add-2bpp-support.patch b/meta/recipes-qt/qt4/qt4-4.8.3/0012-Add-2bpp-support.patch
new file mode 100644
index 0000000000..019b9f4be7
--- /dev/null
+++ b/meta/recipes-qt/qt4/qt4-4.8.3/0012-Add-2bpp-support.patch
@@ -0,0 +1,318 @@
1From a8233fddb36592361910d967664e5b546ac4cc3e Mon Sep 17 00:00:00 2001
2From: =?UTF-8?q?Jeremy=20Lain=C3=A9?= <jeremy.laine@m4x.org>
3Date: Wed, 26 Sep 2012 20:39:21 +0200
4Subject: [PATCH 12/20] Add 2bpp support
5
6Submitted upstream but rejected as being "out of scope":
7http://bugreports.qt.nokia.com/browse/QTBUG-3468
8
9Upstream-Status: Denied
10
11Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
12---
13 configure | 5 +-
14 src/gui/embedded/qscreen_qws.cpp | 211 ++++++++++++++++++++++++++++++++
15 src/gui/embedded/qscreenlinuxfb_qws.cpp | 4 +-
16 3 files changed, 216 insertions(+), 4 deletions(-)
17
18diff --git a/configure b/configure
19index 24cbb2a..cd66d05 100755
20--- a/configure
21+++ b/configure
22@@ -6999,6 +6999,7 @@ if [ "$CFG_QWS_DEPTHS" = "prompted" -a "$PROMPT_FOR_DEPTHS" = "yes" ]; then
23 echo "Choose pixel-depths to support:"
24 echo
25 echo " 1. 1bpp, black/white"
26+ echo " 2. 2bpp, grayscale"
27 echo " 4. 4bpp, grayscale"
28 echo " 8. 8bpp, paletted"
29 echo " 12. 12bpp, rgb 4-4-4"
30@@ -7017,11 +7018,11 @@ if [ "$CFG_QWS_DEPTHS" = "prompted" -a "$PROMPT_FOR_DEPTHS" = "yes" ]; then
31 fi
32 if [ -n "$CFG_QWS_DEPTHS" -a "$PLATFORM_QWS" = "yes" ]; then
33 if [ "$CFG_QWS_DEPTHS" = "all" ]; then
34- CFG_QWS_DEPTHS="1 4 8 12 15 16 18 24 32 generic"
35+ CFG_QWS_DEPTHS="1 2 4 8 12 15 16 18 24 32 generic"
36 fi
37 for D in `echo "$CFG_QWS_DEPTHS" | sed -e 's/,/ /g'`; do
38 case $D in
39- 1|4|8|12|15|16|18|24|32) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_$D";;
40+ 1|2|4|8|12|15|16|18|24|32) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_$D";;
41 generic) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_GENERIC";;
42 esac
43 done
44diff --git a/src/gui/embedded/qscreen_qws.cpp b/src/gui/embedded/qscreen_qws.cpp
45index d2ad851..d25fc87 100644
46--- a/src/gui/embedded/qscreen_qws.cpp
47+++ b/src/gui/embedded/qscreen_qws.cpp
48@@ -469,6 +469,58 @@ static void solidFill_gray4(QScreen *screen, const QColor &color,
49 }
50 #endif // QT_QWS_DEPTH_4
51
52+#ifdef QT_QWS_DEPTH_2
53+static inline void qt_rectfill_gray2(quint8 *dest, quint8 value,
54+ int x, int y, int width, int height,
55+ int stride)
56+{
57+ const int pixelsPerByte = 4;
58+ const int alignWidth = qMin(width, (4 - (x & 3)) & 3);
59+ const int doAlign = (alignWidth > 0 ? 1 : 0);
60+ const int alignStart = pixelsPerByte - 1 - (x & 3);
61+ const int alignStop = alignStart - (alignWidth - 1);
62+ const quint8 alignMask = ((1 << (2 * alignWidth)) - 1) << (2 * alignStop);
63+ const int tailWidth = (width - alignWidth) & 3;
64+ const int doTail = (tailWidth > 0 ? 1 : 0);
65+ const quint8 tailMask = (1 << (2 * (pixelsPerByte - tailWidth))) - 1;
66+ const int width8 = (width - alignWidth) / pixelsPerByte;
67+
68+ dest += y * stride + x / pixelsPerByte;
69+ stride -= (doAlign + width8);
70+
71+ for (int j = 0; j < height; ++j) {
72+ if (doAlign) {
73+ *dest = (*dest & ~alignMask) | (value & alignMask);
74+ ++dest;
75+ }
76+ if (width8) {
77+ qt_memfill<quint8>(dest, value, width8);
78+ dest += width8;
79+ }
80+ if (doTail)
81+ *dest = (*dest & tailMask) | (value & ~tailMask);
82+ dest += stride;
83+ }
84+}
85+
86+static void solidFill_gray2(QScreen *screen, const QColor &color,
87+ const QRegion &region)
88+{
89+ quint8 *dest = reinterpret_cast<quint8*>(screen->base());
90+ const quint8 c = qGray(color.rgba()) >> 6;
91+ const quint8 c8 = (c << 6) | (c << 4) | (c << 2) | c;
92+
93+ const int stride = screen->linestep();
94+ const QVector<QRect> rects = region.rects();
95+
96+ for (int i = 0; i < rects.size(); ++i) {
97+ const QRect r = rects.at(i);
98+ qt_rectfill_gray2(dest, c8, r.x(), r.y(), r.width(), r.height(),
99+ stride);
100+ }
101+}
102+#endif // QT_QWS_DEPTH_2
103+
104 #ifdef QT_QWS_DEPTH_1
105 static inline void qt_rectfill_mono(quint8 *dest, quint8 value,
106 int x, int y, int width, int height,
107@@ -576,6 +628,11 @@ void qt_solidFill_setup(QScreen *screen, const QColor &color,
108 screen->d_ptr->solidFill = solidFill_gray4;
109 break;
110 #endif
111+#ifdef QT_QWS_DEPTH_2
112+ case 2:
113+ screen->d_ptr->solidFill = solidFill_gray2;
114+ break;
115+#endif
116 #ifdef QT_QWS_DEPTH_1
117 case 1:
118 screen->d_ptr->solidFill = solidFill_mono;
119@@ -1006,6 +1063,149 @@ static void blit_4(QScreen *screen, const QImage &image,
120 }
121 #endif // QT_QWS_DEPTH_4
122
123+#ifdef QT_QWS_DEPTH_2
124+
125+struct qgray2 { quint8 dummy; } Q_PACKED;
126+
127+template <typename SRC>
128+static inline quint8 qt_convertToGray2(SRC color);
129+
130+template <>
131+inline quint8 qt_convertToGray2(quint32 color)
132+{
133+ return qGray(color) >> 6;
134+}
135+
136+template <>
137+inline quint8 qt_convertToGray2(quint16 color)
138+{
139+ const int r = (color & 0xf800) >> 11;
140+ const int g = (color & 0x07e0) >> 6; // only keep 5 bit
141+ const int b = (color & 0x001f);
142+ return (r * 11 + g * 16 + b * 5) >> 8;
143+}
144+
145+template <>
146+inline quint8 qt_convertToGray2(qrgb444 color)
147+{
148+ return qt_convertToGray2(quint32(color));
149+}
150+
151+template <>
152+inline quint8 qt_convertToGray2(qargb4444 color)
153+{
154+ return qt_convertToGray2(quint32(color));
155+}
156+
157+template <typename SRC>
158+static inline void qt_rectconvert_gray2(qgray2 *dest2, const SRC *src,
159+ int x, int y, int width, int height,
160+ int dstStride, int srcStride)
161+{
162+ const int pixelsPerByte = 4;
163+ quint8 *dest8 = reinterpret_cast<quint8*>(dest2)
164+ + y * dstStride + x / pixelsPerByte;
165+ const int alignWidth = qMin(width, (4 - (x & 3)) & 3);
166+ const int doAlign = (alignWidth > 0 ? 1 : 0);
167+ const int alignStart = pixelsPerByte - 1 - (x & 3);
168+ const int alignStop = alignStart - (alignWidth - 1);
169+ const quint8 alignMask = ((1 << (2 * alignWidth)) - 1) << (2 * alignStop);
170+ const int tailWidth = (width - alignWidth) & 3;
171+ const int doTail = (tailWidth > 0 ? 1 : 0);
172+ const quint8 tailMask = (1 << (2 * (pixelsPerByte - tailWidth))) - 1;
173+ const int width8 = (width - alignWidth) / pixelsPerByte;
174+
175+ srcStride = srcStride / sizeof(SRC) - (width8 * pixelsPerByte + alignWidth);
176+ dstStride -= (width8 + doAlign);
177+
178+ for (int j = 0; j < height; ++j) {
179+ if (doAlign) {
180+ quint8 d = *dest8 & ~alignMask;
181+ for (int i = alignStart; i >= alignStop; --i)
182+ d |= qt_convertToGray2<SRC>(*src++) << (2 * i);
183+ *dest8++ = d;
184+ }
185+ for (int i = 0; i < width8; ++i) {
186+ *dest8 = (qt_convertToGray2<SRC>(src[0]) << 6)
187+ | (qt_convertToGray2<SRC>(src[1]) << 4)
188+ | (qt_convertToGray2<SRC>(src[2]) << 2)
189+ | (qt_convertToGray2<SRC>(src[3]));
190+ src += 4;
191+ ++dest8;
192+ }
193+ if (doTail) {
194+ quint8 d = *dest8 & tailMask;
195+ switch (tailWidth) {
196+ case 3: d |= qt_convertToGray2<SRC>(src[2]) << 2;
197+ case 2: d |= qt_convertToGray2<SRC>(src[1]) << 4;
198+ case 1: d |= qt_convertToGray2<SRC>(src[0]) << 6;
199+ }
200+ *dest8 = d;
201+ }
202+
203+ dest8 += dstStride;
204+ src += srcStride;
205+ }
206+}
207+
208+template <>
209+void qt_rectconvert(qgray2 *dest, const quint32 *src,
210+ int x, int y, int width, int height,
211+ int dstStride, int srcStride)
212+{
213+ qt_rectconvert_gray2<quint32>(dest, src, x, y, width, height,
214+ dstStride, srcStride);
215+}
216+
217+template <>
218+void qt_rectconvert(qgray2 *dest, const quint16 *src,
219+ int x, int y, int width, int height,
220+ int dstStride, int srcStride)
221+{
222+ qt_rectconvert_gray2<quint16>(dest, src, x, y, width, height,
223+ dstStride, srcStride);
224+}
225+
226+template <>
227+void qt_rectconvert(qgray2 *dest, const qrgb444 *src,
228+ int x, int y, int width, int height,
229+ int dstStride, int srcStride)
230+{
231+ qt_rectconvert_gray2<qrgb444>(dest, src, x, y, width, height,
232+ dstStride, srcStride);
233+}
234+
235+template <>
236+void qt_rectconvert(qgray2 *dest, const qargb4444 *src,
237+ int x, int y, int width, int height,
238+ int dstStride, int srcStride)
239+{
240+ qt_rectconvert_gray2<qargb4444>(dest, src, x, y, width, height,
241+ dstStride, srcStride);
242+}
243+
244+static void blit_2(QScreen *screen, const QImage &image,
245+ const QPoint &topLeft, const QRegion &region)
246+{
247+ switch (image.format()) {
248+ case QImage::Format_ARGB32_Premultiplied:
249+ blit_template<qgray2, quint32>(screen, image, topLeft, region);
250+ return;
251+ case QImage::Format_RGB16:
252+ blit_template<qgray2, quint16>(screen, image, topLeft, region);
253+ return;
254+ case QImage::Format_RGB444:
255+ blit_template<qgray2, qrgb444>(screen, image, topLeft, region);
256+ return;
257+ case QImage::Format_ARGB4444_Premultiplied:
258+ blit_template<qgray2, qargb4444>(screen, image, topLeft, region);
259+ return;
260+ default:
261+ qCritical("blit_2(): Image format %d not supported!", image.format());
262+ }
263+}
264+#endif // QT_QWS_DEPTH_2
265+
266 #ifdef QT_QWS_DEPTH_1
267
268 struct qmono { quint8 dummy; } Q_PACKED;
269@@ -1259,6 +1459,11 @@ void qt_blit_setup(QScreen *screen, const QImage &image,
270 screen->d_ptr->blit = blit_4;
271 break;
272 #endif
273+#ifdef QT_QWS_DEPTH_2
274+ case 2:
275+ screen->d_ptr->blit = blit_2;
276+ break;
277+#endif
278 #ifdef QT_QWS_DEPTH_1
279 case 1:
280 screen->d_ptr->blit = blit_1;
281@@ -2146,6 +2351,8 @@ int QScreen::alloc(unsigned int r,unsigned int g,unsigned int b)
282 }
283 } else if (d == 4) {
284 ret = qGray(r, g, b) >> 4;
285+ } else if (d == 2) {
286+ ret = qGray(r, g, b) >> 6;
287 } else if (d == 1) {
288 ret = qGray(r, g, b) >= 128;
289 } else {
290@@ -2216,6 +2423,10 @@ bool QScreen::supportsDepth(int d) const
291 } else if(d==1) {
292 return true;
293 #endif
294+#ifdef QT_QWS_DEPTH_2
295+ } else if(d==2) {
296+ return true;
297+#endif
298 #ifdef QT_QWS_DEPTH_4
299 } else if(d==4) {
300 return true;
301diff --git a/src/gui/embedded/qscreenlinuxfb_qws.cpp b/src/gui/embedded/qscreenlinuxfb_qws.cpp
302index 04abcd4..06dea6d 100644
303--- a/src/gui/embedded/qscreenlinuxfb_qws.cpp
304+++ b/src/gui/embedded/qscreenlinuxfb_qws.cpp
305@@ -466,8 +466,8 @@ bool QLinuxFbScreen::connect(const QString &displaySpec)
306 setupOffScreen();
307
308 // Now read in palette
309- if((vinfo.bits_per_pixel==8) || (vinfo.bits_per_pixel==4)) {
310- screencols= (vinfo.bits_per_pixel==8) ? 256 : 16;
311+ if((vinfo.bits_per_pixel==8) || (vinfo.bits_per_pixel==4) || (vinfo.bits_per_pixel==2)) {
312+ screencols= 1 << vinfo.bits_per_pixel;
313 int loopc;
314 ::fb_cmap startcmap;
315 startcmap.start=0;
316--
3171.7.12
318
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