diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 343 |
1 files changed, 55 insertions, 288 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index f1ad369906..387481a915 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -61,6 +61,7 @@ #define QT_FT_BEGIN_HEADER #define QT_FT_END_HEADER #endif +#include "private/qpixellayout_p.h" #include "private/qrasterdefs_p.h" #include <private/qsimd_p.h> @@ -149,8 +150,6 @@ typedef void (*SrcOverTransformFunc)(uchar *destPixels, int dbpl, const QTransform &targetRectTransform, int const_alpha); -typedef void (*MemRotateFunc)(const uchar *srcPixels, int w, int h, int sbpl, uchar *destPixels, int dbpl); - struct DrawHelper { ProcessSpans blendColor; BitmapBlitFunc bitmapBlit; @@ -845,31 +844,6 @@ static inline QRgba64 interpolate_4_pixels_rgb64(const QRgba64 t[], const QRgba6 } #endif // __SSE2__ -#if Q_BYTE_ORDER == Q_BIG_ENDIAN -static Q_ALWAYS_INLINE quint32 RGBA2ARGB(quint32 x) { - quint32 rgb = x >> 8; - quint32 a = x << 24; - return a | rgb; -} - -static Q_ALWAYS_INLINE quint32 ARGB2RGBA(quint32 x) { - quint32 rgb = x << 8; - quint32 a = x >> 24; - return a | rgb; -} -#else -static Q_ALWAYS_INLINE quint32 RGBA2ARGB(quint32 x) { - // RGBA8888 is ABGR32 on little endian. - quint32 ag = x & 0xff00ff00; - quint32 rg = x & 0x00ff00ff; - return ag | (rg << 16) | (rg >> 16); -} - -static Q_ALWAYS_INLINE quint32 ARGB2RGBA(quint32 x) { - return RGBA2ARGB(x); -} -#endif - static Q_ALWAYS_INLINE uint BYTE_MUL_RGB16(uint x, uint a) { a += 1; uint t = (((x & 0x07e0)*a) >> 8) & 0x07e0; @@ -889,14 +863,6 @@ static Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_div_257_floor(uint x) { return static Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_div_257(uint x) { return qt_div_257_floor(x + 128); } static Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_div_65535(uint x) { return (x + (x>>16) + 0x8000U) >> 16; } -static Q_ALWAYS_INLINE uint qAlphaRgb30(uint c) -{ - uint a = c >> 30; - a |= a << 2; - a |= a << 4; - return a; -} - template <class T> inline void qt_memfill_template(T *dest, T color, qsizetype count) { if (!count) @@ -978,214 +944,6 @@ inline QRgb qConvertRgb16To32(uint c) | ((((c) << 8) & 0xf80000) | (((c) << 3) & 0x70000)); } -enum QtPixelOrder { - PixelOrderRGB, - PixelOrderBGR -}; - -template<enum QtPixelOrder> inline uint qConvertArgb32ToA2rgb30(QRgb); - -template<enum QtPixelOrder> inline uint qConvertRgb32ToRgb30(QRgb); - -template<enum QtPixelOrder> inline QRgb qConvertA2rgb30ToArgb32(uint c); - -// A combined unpremultiply and premultiply with new simplified alpha. -// Needed when alpha loses precision relative to other colors during conversion (ARGB32 -> A2RGB30). -template<unsigned int Shift> -inline QRgb qRepremultiply(QRgb p) -{ - const uint alpha = qAlpha(p); - if (alpha == 255 || alpha == 0) - return p; - p = qUnpremultiply(p); - Q_CONSTEXPR uint mult = 255 / (255 >> Shift); - const uint newAlpha = mult * (alpha >> Shift); - p = (p & ~0xff000000) | (newAlpha<<24); - return qPremultiply(p); -} - -template<unsigned int Shift> -inline QRgba64 qRepremultiply(QRgba64 p) -{ - const uint alpha = p.alpha(); - if (alpha == 65535 || alpha == 0) - return p; - p = p.unpremultiplied(); - Q_CONSTEXPR uint mult = 65535 / (65535 >> Shift); - p.setAlpha(mult * (alpha >> Shift)); - return p.premultiplied(); -} - -template<> -inline uint qConvertArgb32ToA2rgb30<PixelOrderBGR>(QRgb c) -{ - c = qRepremultiply<6>(c); - return (c & 0xc0000000) - | (((c << 22) & 0x3fc00000) | ((c << 14) & 0x00300000)) - | (((c << 4) & 0x000ff000) | ((c >> 4) & 0x00000c00)) - | (((c >> 14) & 0x000003fc) | ((c >> 22) & 0x00000003)); -} - -template<> -inline uint qConvertArgb32ToA2rgb30<PixelOrderRGB>(QRgb c) -{ - c = qRepremultiply<6>(c); - return (c & 0xc0000000) - | (((c << 6) & 0x3fc00000) | ((c >> 2) & 0x00300000)) - | (((c << 4) & 0x000ff000) | ((c >> 4) & 0x00000c00)) - | (((c << 2) & 0x000003fc) | ((c >> 6) & 0x00000003)); -} - -template<> -inline uint qConvertRgb32ToRgb30<PixelOrderBGR>(QRgb c) -{ - return 0xc0000000 - | (((c << 22) & 0x3fc00000) | ((c << 14) & 0x00300000)) - | (((c << 4) & 0x000ff000) | ((c >> 4) & 0x00000c00)) - | (((c >> 14) & 0x000003fc) | ((c >> 22) & 0x00000003)); -} - -template<> -inline uint qConvertRgb32ToRgb30<PixelOrderRGB>(QRgb c) -{ - return 0xc0000000 - | (((c << 6) & 0x3fc00000) | ((c >> 2) & 0x00300000)) - | (((c << 4) & 0x000ff000) | ((c >> 4) & 0x00000c00)) - | (((c << 2) & 0x000003fc) | ((c >> 6) & 0x00000003)); -} - -template<> -inline QRgb qConvertA2rgb30ToArgb32<PixelOrderBGR>(uint c) -{ - uint a = c >> 30; - a |= a << 2; - a |= a << 4; - return (a << 24) - | ((c << 14) & 0x00ff0000) - | ((c >> 4) & 0x0000ff00) - | ((c >> 22) & 0x000000ff); -} - -template<> -inline QRgb qConvertA2rgb30ToArgb32<PixelOrderRGB>(uint c) -{ - uint a = c >> 30; - a |= a << 2; - a |= a << 4; - return (a << 24) - | ((c >> 6) & 0x00ff0000) - | ((c >> 4) & 0x0000ff00) - | ((c >> 2) & 0x000000ff); -} - -template<enum QtPixelOrder> inline QRgba64 qConvertA2rgb30ToRgb64(uint rgb); - -template<> -inline QRgba64 qConvertA2rgb30ToRgb64<PixelOrderBGR>(uint rgb) -{ - quint16 alpha = rgb >> 30; - quint16 blue = (rgb >> 20) & 0x3ff; - quint16 green = (rgb >> 10) & 0x3ff; - quint16 red = rgb & 0x3ff; - // Expand the range. - alpha |= (alpha << 2); - alpha |= (alpha << 4); - alpha |= (alpha << 8); - red = (red << 6) | (red >> 4); - green = (green << 6) | (green >> 4); - blue = (blue << 6) | (blue >> 4); - return qRgba64(red, green, blue, alpha); -} - -template<> -inline QRgba64 qConvertA2rgb30ToRgb64<PixelOrderRGB>(uint rgb) -{ - quint16 alpha = rgb >> 30; - quint16 red = (rgb >> 20) & 0x3ff; - quint16 green = (rgb >> 10) & 0x3ff; - quint16 blue = rgb & 0x3ff; - // Expand the range. - alpha |= (alpha << 2); - alpha |= (alpha << 4); - alpha |= (alpha << 8); - red = (red << 6) | (red >> 4); - green = (green << 6) | (green >> 4); - blue = (blue << 6) | (blue >> 4); - return qRgba64(red, green, blue, alpha); -} - -template<enum QtPixelOrder> inline unsigned int qConvertRgb64ToRgb30(QRgba64); - -template<> -inline unsigned int qConvertRgb64ToRgb30<PixelOrderBGR>(QRgba64 c) -{ - c = qRepremultiply<14>(c); - const uint a = c.alpha() >> 14; - const uint r = c.red() >> 6; - const uint g = c.green() >> 6; - const uint b = c.blue() >> 6; - return (a << 30) | (b << 20) | (g << 10) | r; -} - -template<> -inline unsigned int qConvertRgb64ToRgb30<PixelOrderRGB>(QRgba64 c) -{ - c = qRepremultiply<14>(c); - const uint a = c.alpha() >> 14; - const uint r = c.red() >> 6; - const uint g = c.green() >> 6; - const uint b = c.blue() >> 6; - return (a << 30) | (r << 20) | (g << 10) | b; -} - -inline uint qRgbSwapRgb30(uint c) -{ - const uint ag = c & 0xc00ffc00; - const uint rb = c & 0x3ff003ff; - return ag | (rb << 20) | (rb >> 20); -} - -inline int qRed565(quint16 rgb) { - const int r = (rgb & 0xf800); - return (r >> 8) | (r >> 13); -} - -inline int qGreen565(quint16 rgb) { - const int g = (rgb & 0x07e0); - return (g >> 3) | (g >> 9); -} - -inline int qBlue565(quint16 rgb) { - const int b = (rgb & 0x001f); - return (b << 3) | (b >> 2); -} - -// We manually unalias the variables to make sure the compiler -// fully optimizes both aliased and unaliased cases. -#define UNALIASED_CONVERSION_LOOP(buffer, src, count, conversion) \ - if (src == buffer) { \ - for (int i = 0; i < count; ++i) \ - buffer[i] = conversion(buffer[i]); \ - } else { \ - for (int i = 0; i < count; ++i) \ - buffer[i] = conversion(src[i]); \ - } - - -static Q_ALWAYS_INLINE const uint *qt_convertARGB32ToARGB32PM(uint *buffer, const uint *src, int count) -{ - UNALIASED_CONVERSION_LOOP(buffer, src, count, qPremultiply); - return buffer; -} - -static Q_ALWAYS_INLINE const uint *qt_convertRGBA8888ToARGB32PM(uint *buffer, const uint *src, int count) -{ - UNALIASED_CONVERSION_LOOP(buffer, src, count, [](uint s) { return qPremultiply(RGBA2ARGB(s));}); - return buffer; -} - -template<bool RGBA> void qt_convertRGBA64ToARGB32(uint *dst, const QRgba64 *src, int count); - const uint qt_bayer_matrix[16][16] = { { 0x1, 0xc0, 0x30, 0xf0, 0xc, 0xcc, 0x3c, 0xfc, 0x3, 0xc3, 0x33, 0xf3, 0xf, 0xcf, 0x3f, 0xff}, @@ -1265,60 +1023,69 @@ struct IntermediateBuffer quint32 buffer_ag[BufferSize+2]; }; -struct QDitherInfo { - int x; - int y; -}; - -typedef const uint *(QT_FASTCALL *FetchAndConvertPixelsFunc)(uint *buffer, const uchar *src, int index, int count, - const QVector<QRgb> *clut, QDitherInfo *dither); -typedef void (QT_FASTCALL *ConvertAndStorePixelsFunc)(uchar *dest, const uint *src, int index, int count, - const QVector<QRgb> *clut, QDitherInfo *dither); +template <QPixelLayout::BPP bpp> +inline uint QT_FASTCALL qFetchPixel(const uchar *, int) +{ + Q_UNREACHABLE(); + return 0; +} -typedef const QRgba64 *(QT_FASTCALL *FetchAndConvertPixelsFunc64)(QRgba64 *buffer, const uchar *src, int index, int count, - const QVector<QRgb> *clut, QDitherInfo *dither); -typedef void (QT_FASTCALL *ConvertAndStorePixelsFunc64)(uchar *dest, const QRgba64 *src, int index, int count, - const QVector<QRgb> *clut, QDitherInfo *dither); +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP1LSB>(const uchar *src, int index) +{ + return (src[index >> 3] >> (index & 7)) & 1; +} -typedef void (QT_FASTCALL *ConvertFunc)(uint *buffer, int count, const QVector<QRgb> *clut); -typedef void (QT_FASTCALL *Convert64Func)(quint64 *buffer, int count, const QVector<QRgb> *clut); -typedef const QRgba64 *(QT_FASTCALL *ConvertTo64Func)(QRgba64 *buffer, const uint *src, int count, - const QVector<QRgb> *clut, QDitherInfo *dither); -typedef void (QT_FASTCALL *RbSwapFunc)(uchar *dst, const uchar *src, int count); +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP1MSB>(const uchar *src, int index) +{ + return (src[index >> 3] >> (~index & 7)) & 1; +} +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP8>(const uchar *src, int index) +{ + return src[index]; +} -struct QPixelLayout +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP16>(const uchar *src, int index) { - // Bits per pixel - enum BPP { - BPPNone, - BPP1MSB, - BPP1LSB, - BPP8, - BPP16, - BPP24, - BPP32, - BPP64, - BPPCount - }; + return reinterpret_cast<const quint16 *>(src)[index]; +} - bool hasAlphaChannel; - bool premultiplied; - BPP bpp; - RbSwapFunc rbSwap; - ConvertFunc convertToARGB32PM; - ConvertTo64Func convertToRGBA64PM; - FetchAndConvertPixelsFunc fetchToARGB32PM; - FetchAndConvertPixelsFunc64 fetchToRGBA64PM; - ConvertAndStorePixelsFunc storeFromARGB32PM; - ConvertAndStorePixelsFunc storeFromRGB32; -}; +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP24>(const uchar *src, int index) +{ + return reinterpret_cast<const quint24 *>(src)[index]; +} -extern ConvertAndStorePixelsFunc64 qStoreFromRGBA64PM[QImage::NImageFormats]; +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP32>(const uchar *src, int index) +{ + return reinterpret_cast<const uint *>(src)[index]; +} -extern QPixelLayout qPixelLayouts[QImage::NImageFormats]; +template <> +inline uint QT_FASTCALL qFetchPixel<QPixelLayout::BPP64>(const uchar *src, int index) +{ + // We have to do the conversion in fetch to fit into a 32bit uint + QRgba64 c = reinterpret_cast<const QRgba64 *>(src)[index]; + return c.toArgb32(); +} -extern MemRotateFunc qMemRotateFunctions[QPixelLayout::BPPCount][3]; +typedef uint (QT_FASTCALL *FetchPixelFunc)(const uchar *src, int index); + +constexpr FetchPixelFunc qFetchPixelTable[QPixelLayout::BPPCount] = { + nullptr, // BPPNone + qFetchPixel<QPixelLayout::BPP1MSB>, + qFetchPixel<QPixelLayout::BPP1LSB>, + qFetchPixel<QPixelLayout::BPP8>, + qFetchPixel<QPixelLayout::BPP16>, + qFetchPixel<QPixelLayout::BPP24>, + qFetchPixel<QPixelLayout::BPP32>, + qFetchPixel<QPixelLayout::BPP64>, +}; QT_END_NAMESPACE |