diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index db5ec70..a92f686 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -465,6 +465,79 @@ const uint * QT_FASTCALL qt_fetch_radial_gradient_template(uint *buffer, const O return b; } +template <class Simd> +class QRadialFetchSimd +{ +public: + static inline void fetch(uint *buffer, uint *end, const QSpanData *data, qreal det, qreal delta_det, + qreal delta_delta_det, qreal b, qreal delta_b) + { + typename Simd::Vect_buffer_f det_vec; + typename Simd::Vect_buffer_f delta_det4_vec; + typename Simd::Vect_buffer_f b_vec; + + for (int i = 0; i < 4; ++i) { + det_vec.f[i] = det; + delta_det4_vec.f[i] = 4 * delta_det; + b_vec.f[i] = b; + + det += delta_det; + delta_det += delta_delta_det; + b += delta_b; + } + + const typename Simd::Float32x4 v_delta_delta_det16 = Simd::v_dup(16 * delta_delta_det); + const typename Simd::Float32x4 v_delta_delta_det6 = Simd::v_dup(6 * delta_delta_det); + const typename Simd::Float32x4 v_delta_b4 = Simd::v_dup(4 * delta_b); + + const typename Simd::Float32x4 v_min = Simd::v_dup(0.0f); + const typename Simd::Float32x4 v_max = Simd::v_dup(GRADIENT_STOPTABLE_SIZE-1.5f); + const typename Simd::Float32x4 v_half = Simd::v_dup(0.5f); + + const typename Simd::Float32x4 v_table_size_minus_one = Simd::v_dup(float(GRADIENT_STOPTABLE_SIZE-1)); + + const typename Simd::Int32x4 v_repeat_mask = Simd::v_dup(~(uint(0xffffff) << GRADIENT_STOPTABLE_SIZE_SHIFT)); + const typename Simd::Int32x4 v_reflect_mask = Simd::v_dup(~(uint(0xffffff) << (GRADIENT_STOPTABLE_SIZE_SHIFT+1))); + + const typename Simd::Int32x4 v_reflect_limit = Simd::v_dup(2 * GRADIENT_STOPTABLE_SIZE - 1); + +#define FETCH_RADIAL_LOOP_PROLOGUE \ + while (buffer < end) { \ + const typename Simd::Float32x4 v_index_local = Simd::v_sub(Simd::v_sqrt(Simd::v_max(v_min, det_vec.v)), b_vec.v); \ + const typename Simd::Float32x4 v_index = Simd::v_add(Simd::v_mul(v_index_local, v_table_size_minus_one), v_half); \ + typename Simd::Vect_buffer_i index_vec; +#define FETCH_RADIAL_LOOP_CLAMP_REPEAT \ + index_vec.v = Simd::v_and(v_repeat_mask, Simd::v_toInt(v_index)); +#define FETCH_RADIAL_LOOP_CLAMP_REFLECT \ + const typename Simd::Int32x4 v_index_i = Simd::v_and(v_reflect_mask, Simd::v_toInt(v_index)); \ + const typename Simd::Int32x4 v_index_i_inv = Simd::v_sub(v_reflect_limit, v_index_i); \ + index_vec.v = Simd::v_min_16(v_index_i, v_index_i_inv); +#define FETCH_RADIAL_LOOP_CLAMP_PAD \ + index_vec.v = Simd::v_toInt(Simd::v_min(v_max, Simd::v_max(v_min, v_index))); +#define FETCH_RADIAL_LOOP_EPILOGUE \ + det_vec.v = Simd::v_add(Simd::v_add(det_vec.v, delta_det4_vec.v), v_delta_delta_det6); \ + delta_det4_vec.v = Simd::v_add(delta_det4_vec.v, v_delta_delta_det16); \ + b_vec.v = Simd::v_add(b_vec.v, v_delta_b4); \ + for (int i = 0; i < 4; ++i) \ + *buffer++ = data->gradient.colorTable[index_vec.i[i]]; \ + } + + if (data->gradient.spread == QGradient::RepeatSpread) { + FETCH_RADIAL_LOOP_PROLOGUE + FETCH_RADIAL_LOOP_CLAMP_REPEAT + FETCH_RADIAL_LOOP_EPILOGUE + } else if (data->gradient.spread == QGradient::ReflectSpread) { + FETCH_RADIAL_LOOP_PROLOGUE + FETCH_RADIAL_LOOP_CLAMP_REFLECT + FETCH_RADIAL_LOOP_EPILOGUE + } else { + FETCH_RADIAL_LOOP_PROLOGUE + FETCH_RADIAL_LOOP_CLAMP_PAD + FETCH_RADIAL_LOOP_EPILOGUE + } + } +}; + #if defined(Q_CC_RVCT) # pragma push # pragma arm |