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Diffstat (limited to 'src/gui/painting/qimagescale_neon.cpp')
-rw-r--r--src/gui/painting/qimagescale_neon.cpp218
1 files changed, 143 insertions, 75 deletions
diff --git a/src/gui/painting/qimagescale_neon.cpp b/src/gui/painting/qimagescale_neon.cpp
index 4ae113b002..416155e139 100644
--- a/src/gui/painting/qimagescale_neon.cpp
+++ b/src/gui/painting/qimagescale_neon.cpp
@@ -41,6 +41,11 @@
#include "qimage.h"
#include <private/qsimd_p.h>
+#if QT_CONFIG(thread)
+#include "qsemaphore.h"
+#include "qthreadpool.h"
+#endif
+
#if defined(__ARM_NEON__)
QT_BEGIN_NAMESPACE
@@ -76,33 +81,54 @@ void qt_qimageScaleAARGBA_up_x_down_y_neon(QImageScaleInfo *isi, unsigned int *d
int *yapoints = isi->yapoints;
/* go through every scanline in the output buffer */
- for (int y = 0; y < dh; y++) {
- int Cy = yapoints[y] >> 16;
- int yap = yapoints[y] & 0xffff;
-
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, yap, Cy, sow);
-
- int xap = xapoints[x];
- if (xap > 0) {
- uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + 1, yap, Cy, sow);
-
- vx = vmulq_n_u32(vx, 256 - xap);
- vr = vmulq_n_u32(vr, xap);
- vx = vaddq_u32(vx, vr);
- vx = vshrq_n_u32(vx, 8);
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ int Cy = yapoints[y] >> 16;
+ int yap = yapoints[y] & 0xffff;
+
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, yap, Cy, sow);
+
+ int xap = xapoints[x];
+ if (xap > 0) {
+ uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + 1, yap, Cy, sow);
+
+ vx = vmulq_n_u32(vx, 256 - xap);
+ vr = vmulq_n_u32(vr, xap);
+ vx = vaddq_u32(vx, vr);
+ vx = vshrq_n_u32(vx, 8);
+ }
+ vx = vshrq_n_u32(vx, 14);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- vx = vshrq_n_u32(vx, 14);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
+ };
+#if QT_CONFIG(thread)
+ int segments = (qsizetype(isi->sh) * isi->sw) / (1<<16);
+ segments = std::min(segments, dh);
+ if (segments > 1) {
+ QSemaphore semaphore;
+ int y = 0;
+ for (int i = 0; i < segments; ++i) {
+ int yn = (dh - y) / (segments - i);
+ QThreadPool::globalInstance()->start([&, y, yn]() {
+ scaleSection(y, y + yn);
+ semaphore.release(1);
+ });
+ y += yn;
+ }
+ semaphore.acquire(segments);
+ return;
}
+#endif
+ scaleSection(0, dh);
}
template<bool RGB>
@@ -115,33 +141,54 @@ void qt_qimageScaleAARGBA_down_x_up_y_neon(QImageScaleInfo *isi, unsigned int *d
int *yapoints = isi->yapoints;
/* go through every scanline in the output buffer */
- for (int y = 0; y < dh; y++) {
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- int Cx = xapoints[x] >> 16;
- int xap = xapoints[x] & 0xffff;
-
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
-
- int yap = yapoints[y];
- if (yap > 0) {
- uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + sow, xap, Cx, 1);
-
- vx = vmulq_n_u32(vx, 256 - yap);
- vr = vmulq_n_u32(vr, yap);
- vx = vaddq_u32(vx, vr);
- vx = vshrq_n_u32(vx, 8);
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ int Cx = xapoints[x] >> 16;
+ int xap = xapoints[x] & 0xffff;
+
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+
+ int yap = yapoints[y];
+ if (yap > 0) {
+ uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + sow, xap, Cx, 1);
+
+ vx = vmulq_n_u32(vx, 256 - yap);
+ vr = vmulq_n_u32(vr, yap);
+ vx = vaddq_u32(vx, vr);
+ vx = vshrq_n_u32(vx, 8);
+ }
+ vx = vshrq_n_u32(vx, 14);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- vx = vshrq_n_u32(vx, 14);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
+ };
+#if QT_CONFIG(thread)
+ int segments = (qsizetype(isi->sh) * isi->sw) / (1<<16);
+ segments = std::min(segments, dh);
+ if (segments > 1) {
+ QSemaphore semaphore;
+ int y = 0;
+ for (int i = 0; i < segments; ++i) {
+ int yn = (dh - y) / (segments - i);
+ QThreadPool::globalInstance()->start([&, y, yn]() {
+ scaleSection(y, y + yn);
+ semaphore.release(1);
+ });
+ y += yn;
+ }
+ semaphore.acquire(segments);
+ return;
}
+#endif
+ scaleSection(0, dh);
}
template<bool RGB>
@@ -153,43 +200,64 @@ void qt_qimageScaleAARGBA_down_xy_neon(QImageScaleInfo *isi, unsigned int *dest,
int *xapoints = isi->xapoints;
int *yapoints = isi->yapoints;
- for (int y = 0; y < dh; y++) {
- int Cy = yapoints[y] >> 16;
- int yap = yapoints[y] & 0xffff;
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ int Cy = yapoints[y] >> 16;
+ int yap = yapoints[y] & 0xffff;
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- const int Cx = xapoints[x] >> 16;
- const int xap = xapoints[x] & 0xffff;
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ const int Cx = xapoints[x] >> 16;
+ const int xap = xapoints[x] & 0xffff;
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
- vx = vshrq_n_u32(vx, 4);
- uint32x4_t vr = vmulq_n_u32(vx, yap);
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+ vx = vshrq_n_u32(vx, 4);
+ uint32x4_t vr = vmulq_n_u32(vx, yap);
- int j;
- for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
+ int j;
+ for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
+ sptr += sow;
+ vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+ vx = vshrq_n_u32(vx, 4);
+ vx = vmulq_n_u32(vx, Cy);
+ vr = vaddq_u32(vr, vx);
+ }
sptr += sow;
vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
vx = vshrq_n_u32(vx, 4);
- vx = vmulq_n_u32(vx, Cy);
+ vx = vmulq_n_u32(vx, j);
vr = vaddq_u32(vr, vx);
+
+ vx = vshrq_n_u32(vr, 24);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- sptr += sow;
- vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
- vx = vshrq_n_u32(vx, 4);
- vx = vmulq_n_u32(vx, j);
- vr = vaddq_u32(vr, vx);
-
- vx = vshrq_n_u32(vr, 24);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
+ };
+#if QT_CONFIG(thread)
+ int segments = (qsizetype(isi->sh) * isi->sw) / (1<<16);
+ segments = std::min(segments, dh);
+ if (segments > 1) {
+ QSemaphore semaphore;
+ int y = 0;
+ for (int i = 0; i < segments; ++i) {
+ int yn = (dh - y) / (segments - i);
+ QThreadPool::globalInstance()->start([&, y, yn]() {
+ scaleSection(y, y + yn);
+ semaphore.release(1);
+ });
+ y += yn;
+ }
+ semaphore.acquire(segments);
+ return;
}
+#endif
+ scaleSection(0, dh);
}
template void qt_qimageScaleAARGBA_up_x_down_y_neon<false>(QImageScaleInfo *isi, unsigned int *dest,
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 01:59:43 +0000