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-rw-r--r--recipes-qt/qt4/files/0009-support-2bpp.patch295
1 files changed, 295 insertions, 0 deletions
diff --git a/recipes-qt/qt4/files/0009-support-2bpp.patch b/recipes-qt/qt4/files/0009-support-2bpp.patch
new file mode 100644
index 0000000000..82506bcbec
--- /dev/null
+++ b/recipes-qt/qt4/files/0009-support-2bpp.patch
@@ -0,0 +1,295 @@
1diff -urN qt-embedded-linux-opensource-src-4.4.3.orig/configure qt-embedded-linux-opensource-src-4.4.3/configure
2--- qt-embedded-linux-opensource-src-4.4.3.orig/configure 2008-09-27 11:01:23.000000000 +0200
3+++ qt-embedded-linux-opensource-src-4.4.3/configure 2009-01-14 14:30:53.000000000 +0100
4@@ -5045,6 +5045,7 @@
5 echo "Choose pixel-depths to support:"
6 echo
7 echo " 1. 1bpp, black/white"
8+ echo " 2. 2bpp, grayscale"
9 echo " 4. 4bpp, grayscale"
10 echo " 8. 8bpp, paletted"
11 echo " 12. 12bpp, rgb 4-4-4"
12@@ -5063,11 +5064,11 @@
13 fi
14 if [ -n "$CFG_QWS_DEPTHS" -a "$PLATFORM_QWS" = "yes" ]; then
15 if [ "$CFG_QWS_DEPTHS" = "all" ]; then
16- CFG_QWS_DEPTHS="1 4 8 12 15 16 18 24 32 generic"
17+ CFG_QWS_DEPTHS="1 2 4 8 12 15 16 18 24 32 generic"
18 fi
19 for D in `echo "$CFG_QWS_DEPTHS" | sed -e 's/,/ /g'`; do
20 case $D in
21- 1|4|8|12|15|16|18|24|32) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_$D";;
22+ 1|2|4|8|12|15|16|18|24|32) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_$D";;
23 generic) QCONFIG_FLAGS="$QCONFIG_FLAGS QT_QWS_DEPTH_GENERIC";;
24 esac
25 done
26diff -urN qt-embedded-linux-opensource-src-4.4.3.orig/src/gui/embedded/qscreenlinuxfb_qws.cpp qt-embedded-linux-opensource-src-4.4.3/src/gui/embedded/qscreenlinuxfb_qws.cpp
27--- qt-embedded-linux-opensource-src-4.4.3.orig/src/gui/embedded/qscreenlinuxfb_qws.cpp 2008-09-27 11:01:28.000000000 +0200
28+++ qt-embedded-linux-opensource-src-4.4.3/src/gui/embedded/qscreenlinuxfb_qws.cpp 2009-01-14 17:22:34.000000000 +0100
29@@ -404,8 +404,8 @@
30 setupOffScreen();
31
32 // Now read in palette
33- if((vinfo.bits_per_pixel==8) || (vinfo.bits_per_pixel==4)) {
34- screencols= (vinfo.bits_per_pixel==8) ? 256 : 16;
35+ if((vinfo.bits_per_pixel==8) || (vinfo.bits_per_pixel==4) || (vinfo.bits_per_pixel==2)) {
36+ screencols= 1 << vinfo.bits_per_pixel;
37 int loopc;
38 fb_cmap startcmap;
39 startcmap.start=0;
40diff -urN qt-embedded-linux-opensource-src-4.4.3.orig/src/gui/embedded/qscreen_qws.cpp qt-embedded-linux-opensource-src-4.4.3/src/gui/embedded/qscreen_qws.cpp
41--- qt-embedded-linux-opensource-src-4.4.3.orig/src/gui/embedded/qscreen_qws.cpp 2008-09-27 11:01:28.000000000 +0200
42+++ qt-embedded-linux-opensource-src-4.4.3/src/gui/embedded/qscreen_qws.cpp 2009-01-14 17:22:44.000000000 +0100
43@@ -444,6 +444,58 @@
44 }
45 #endif // QT_QWS_DEPTH_4
46
47+#ifdef QT_QWS_DEPTH_2
48+static inline void qt_rectfill_gray2(quint8 *dest, quint8 value,
49+ int x, int y, int width, int height,
50+ int stride)
51+{
52+ const int pixelsPerByte = 4;
53+ const int alignWidth = qMin(width, (4 - (x & 3)) & 3);
54+ const int doAlign = (alignWidth > 0 ? 1 : 0);
55+ const int alignStart = pixelsPerByte - 1 - (x & 3);
56+ const int alignStop = alignStart - (alignWidth - 1);
57+ const quint8 alignMask = ((1 << (2 * alignWidth)) - 1) << (2 * alignStop);
58+ const int tailWidth = (width - alignWidth) & 3;
59+ const int doTail = (tailWidth > 0 ? 1 : 0);
60+ const quint8 tailMask = (1 << (2 * (pixelsPerByte - tailWidth))) - 1;
61+ const int width8 = (width - alignWidth) / pixelsPerByte;
62+
63+ dest += y * stride + x / pixelsPerByte;
64+ stride -= (doAlign + width8);
65+
66+ for (int j = 0; j < height; ++j) {
67+ if (doAlign) {
68+ *dest = (*dest & ~alignMask) | (value & alignMask);
69+ ++dest;
70+ }
71+ if (width8) {
72+ qt_memfill<quint8>(dest, value, width8);
73+ dest += width8;
74+ }
75+ if (doTail)
76+ *dest = (*dest & tailMask) | (value & ~tailMask);
77+ dest += stride;
78+ }
79+}
80+
81+static void solidFill_gray2(QScreen *screen, const QColor &color,
82+ const QRegion &region)
83+{
84+ quint8 *dest = reinterpret_cast<quint8*>(screen->base());
85+ const quint8 c = qGray(color.rgba()) >> 6;
86+ const quint8 c8 = (c << 6) | (c << 4) | (c << 2) | c;
87+
88+ const int stride = screen->linestep();
89+ const QVector<QRect> rects = region.rects();
90+
91+ for (int i = 0; i < rects.size(); ++i) {
92+ const QRect r = rects.at(i);
93+ qt_rectfill_gray2(dest, c8, r.x(), r.y(), r.width(), r.height(),
94+ stride);
95+ }
96+}
97+#endif // QT_QWS_DEPTH_2
98+
99 #ifdef QT_QWS_DEPTH_1
100 static inline void qt_rectfill_mono(quint8 *dest, quint8 value,
101 int x, int y, int width, int height,
102@@ -551,6 +603,11 @@
103 screen->d_ptr->solidFill = solidFill_gray4;
104 break;
105 #endif
106+#ifdef QT_QWS_DEPTH_2
107+ case 2:
108+ screen->d_ptr->solidFill = solidFill_gray2;
109+ break;
110+#endif
111 #ifdef QT_QWS_DEPTH_1
112 case 1:
113 screen->d_ptr->solidFill = solidFill_mono;
114@@ -958,6 +1015,149 @@
115 }
116 #endif // QT_QWS_DEPTH_4
117
118+#ifdef QT_QWS_DEPTH_2
119+
120+struct qgray2 { quint8 dummy; } Q_PACKED;
121+
122+template <typename SRC>
123+static inline quint8 qt_convertToGray2(SRC color);
124+
125+template <>
126+inline quint8 qt_convertToGray2(quint32 color)
127+{
128+ return qGray(color) >> 6;
129+}
130+
131+template <>
132+inline quint8 qt_convertToGray2(quint16 color)
133+{
134+ const int r = (color & 0xf800) >> 11;
135+ const int g = (color & 0x07e0) >> 6; // only keep 5 bit
136+ const int b = (color & 0x001f);
137+ return (r * 11 + g * 16 + b * 5) >> 8;
138+}
139+
140+template <>
141+inline quint8 qt_convertToGray2(qrgb444 color)
142+{
143+ return qt_convertToGray2(quint32(color));
144+}
145+
146+template <>
147+inline quint8 qt_convertToGray2(qargb4444 color)
148+{
149+ return qt_convertToGray2(quint32(color));
150+}
151+
152+template <typename SRC>
153+static inline void qt_rectconvert_gray2(qgray2 *dest2, const SRC *src,
154+ int x, int y, int width, int height,
155+ int dstStride, int srcStride)
156+{
157+ const int pixelsPerByte = 4;
158+ quint8 *dest8 = reinterpret_cast<quint8*>(dest2)
159+ + y * dstStride + x / pixelsPerByte;
160+ const int alignWidth = qMin(width, (4 - (x & 3)) & 3);
161+ const int doAlign = (alignWidth > 0 ? 1 : 0);
162+ const int alignStart = pixelsPerByte - 1 - (x & 3);
163+ const int alignStop = alignStart - (alignWidth - 1);
164+ const quint8 alignMask = ((1 << (2 * alignWidth)) - 1) << (2 * alignStop);
165+ const int tailWidth = (width - alignWidth) & 3;
166+ const int doTail = (tailWidth > 0 ? 1 : 0);
167+ const quint8 tailMask = (1 << (2 * (pixelsPerByte - tailWidth))) - 1;
168+ const int width8 = (width - alignWidth) / pixelsPerByte;
169+
170+ srcStride = srcStride / sizeof(SRC) - (width8 * pixelsPerByte + alignWidth);
171+ dstStride -= (width8 + doAlign);
172+
173+ for (int j = 0; j < height; ++j) {
174+ if (doAlign) {
175+ quint8 d = *dest8 & ~alignMask;
176+ for (int i = alignStart; i >= alignStop; --i)
177+ d |= qt_convertToGray2<SRC>(*src++) << (2 * i);
178+ *dest8++ = d;
179+ }
180+ for (int i = 0; i < width8; ++i) {
181+ *dest8 = (qt_convertToGray2<SRC>(src[0]) << 6)
182+ | (qt_convertToGray2<SRC>(src[1]) << 4)
183+ | (qt_convertToGray2<SRC>(src[2]) << 2)
184+ | (qt_convertToGray2<SRC>(src[3]));
185+ src += 4;
186+ ++dest8;
187+ }
188+ if (doTail) {
189+ quint8 d = *dest8 & tailMask;
190+ switch (tailWidth) {
191+ case 3: d |= qt_convertToGray2<SRC>(src[2]) << 2;
192+ case 2: d |= qt_convertToGray2<SRC>(src[1]) << 4;
193+ case 1: d |= qt_convertToGray2<SRC>(src[0]) << 6;
194+ }
195+ *dest8 = d;
196+ }
197+
198+ dest8 += dstStride;
199+ src += srcStride;
200+ }
201+}
202+
203+template <>
204+void qt_rectconvert(qgray2 *dest, const quint32 *src,
205+ int x, int y, int width, int height,
206+ int dstStride, int srcStride)
207+{
208+ qt_rectconvert_gray2<quint32>(dest, src, x, y, width, height,
209+ dstStride, srcStride);
210+}
211+
212+template <>
213+void qt_rectconvert(qgray2 *dest, const quint16 *src,
214+ int x, int y, int width, int height,
215+ int dstStride, int srcStride)
216+{
217+ qt_rectconvert_gray2<quint16>(dest, src, x, y, width, height,
218+ dstStride, srcStride);
219+}
220+
221+template <>
222+void qt_rectconvert(qgray2 *dest, const qrgb444 *src,
223+ int x, int y, int width, int height,
224+ int dstStride, int srcStride)
225+{
226+ qt_rectconvert_gray2<qrgb444>(dest, src, x, y, width, height,
227+ dstStride, srcStride);
228+}
229+
230+template <>
231+void qt_rectconvert(qgray2 *dest, const qargb4444 *src,
232+ int x, int y, int width, int height,
233+ int dstStride, int srcStride)
234+{
235+ qt_rectconvert_gray2<qargb4444>(dest, src, x, y, width, height,
236+ dstStride, srcStride);
237+}
238+
239+static void blit_2(QScreen *screen, const QImage &image,
240+ const QPoint &topLeft, const QRegion &region)
241+{
242+ switch (image.format()) {
243+ case QImage::Format_ARGB32_Premultiplied:
244+ blit_template<qgray2, quint32>(screen, image, topLeft, region);
245+ return;
246+ case QImage::Format_RGB16:
247+ blit_template<qgray2, quint16>(screen, image, topLeft, region);
248+ return;
249+ case QImage::Format_RGB444:
250+ blit_template<qgray2, qrgb444>(screen, image, topLeft, region);
251+ return;
252+ case QImage::Format_ARGB4444_Premultiplied:
253+ blit_template<qgray2, qargb4444>(screen, image, topLeft, region);
254+ return;
255+ default:
256+ qCritical("blit_2(): Image format %d not supported!", image.format());
257+ }
258+}
259+#endif // QT_QWS_DEPTH_2
260+
261 #ifdef QT_QWS_DEPTH_1
262
263 struct qmono { quint8 dummy; } Q_PACKED;
264@@ -1206,6 +1406,11 @@
265 screen->d_ptr->blit = blit_4;
266 break;
267 #endif
268+#ifdef QT_QWS_DEPTH_2
269+ case 2:
270+ screen->d_ptr->blit = blit_2;
271+ break;
272+#endif
273 #ifdef QT_QWS_DEPTH_1
274 case 1:
275 screen->d_ptr->blit = blit_1;
276@@ -2056,6 +2261,8 @@
277 }
278 } else if (d == 4) {
279 ret = qGray(r, g, b) >> 4;
280+ } else if (d == 2) {
281+ ret = qGray(r, g, b) >> 6;
282 } else if (d == 1) {
283 ret = qGray(r, g, b) >= 128;
284 } else {
285@@ -2126,6 +2333,10 @@
286 } else if(d==1) {
287 return true;
288 #endif
289+#ifdef QT_QWS_DEPTH_2
290+ } else if(d==2) {
291+ return true;
292+#endif
293 #ifdef QT_QWS_DEPTH_4
294 } else if(d==4) {
295 return true;
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-10-24 06:14:43 +0000