diff options
| -rw-r--r-- | src/opts/SkBitmapProcState_opts_arm.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/opts/SkBitmapProcState_opts_arm.cpp b/src/opts/SkBitmapProcState_opts_arm.cpp index 3a5694f..552e97c 100644 --- a/src/opts/SkBitmapProcState_opts_arm.cpp +++ b/src/opts/SkBitmapProcState_opts_arm.cpp @@ -914,6 +914,121 @@ void Clamp_S32_opaque_D32_nofilter_DX_shaderproc(const SkBitmapProcState& s, int fx += dx; } } + + +void S16_opaque_D32_nofilter_DX_arm(const SkBitmapProcState& s, + const uint32_t* SK_RESTRICT xy, + int count, uint32_t* SK_RESTRICT colors) { + const uint16_t* SK_RESTRICT srcAddr = (const uint16_t*)s.fBitmap->getPixels(); + uint16_t* index; + uint16_t src; + int i; + + srcAddr = (const uint16_t*)((const char*)srcAddr + xy[0] * s.fBitmap->rowBytes()); + const uint16_t* SK_RESTRICT xx = (const uint16_t*)(++xy); + + if (1 == s.fBitmap->width()) { + src = srcAddr[0]; + sk_memset32(colors, SkPixel16ToPixel32(src), count); + } else if ((xx[count - 1] - xx[0]) == (count - 1)) { + // No scaling + const uint16_t* src_data = (const uint16_t*)(srcAddr + xx[0]); + asm volatile ( + "pld [%[src_data]] \n\t" // Pre-load source + "subs %[count], %[count], #24 \n\t" // Do we have at least 24 pixels for main loop? + "blt 2f \n\t" // + "vld1.16 {q0}, [%[src_data]]! \n\t" // Load eight RGB565 pixels + "pld [%[src_data]] \n\t" // Pre-load source + "pld [%[src_data], #32] \n\t" // Pre-load source + "vmov.u16 q8, #0xFF00 \n\t" // Load alpha value for later use + "1: \n\t" + // Handle 16 pixels in main loop. + "vshl.u16 q1, q0, #5 \n\t" // Split green into q1 + "vshl.u16 q3, q0, #11 \n\t" // Split blue into q3 + "vmov.u16 q2, q8 \n\t" // Copy alpha to q2 + "vld1.16 {q9}, [%[src_data]]! \n\t" // Pre-load next eight RGB565 pixels + "vsri.u16 q1, q1, #6 \n\t" // Insert two high bits green as LSBs green in q1 + "vsri.u16 q2, q3, #8 \n\t" // Merge blue with alpha in q2 + "vsri.u16 q1, q0, #8 \n\t" // Merge red with green in q1 + "vsri.u16 q2, q3, #13 \n\t" // Merge three high bits blue as LSBs blue in q2 + "vsri.u16 q1, q0, #13 \n\t" // Merge three high bits red as LSBs red in q1 + "subs %[count], %[count], #16 \n\t" // Decrease count + "vst2.16 {q1 - q2}, [%[colors]]! \n\t" // Store q1-q2 to destination + "vshl.u16 q10, q9, #5 \n\t" // Split green into q10 + "vshl.u16 q12, q9, #11 \n\t" // Split blue into q12 + "vmov.u16 q11, q8 \n\t" // Copy alpha to q11 + "vld1.16 {q0}, [%[src_data]]! \n\t" // Pre-load next eight RGB565 pixels + "vsri.u16 q10, q10, #6 \n\t" // Insert two high bits green as LSBs green in q10 + "vsri.u16 q11, q12, #8 \n\t" // Merge blue with alpha in q11 + "vsri.u16 q10, q9, #8 \n\t" // Merge red with green in q10 + "pld [%[src_data], #32] \n\t" // Pre-load source + "vsri.u16 q11, q12, #13 \n\t" // Merge three high bits blue as LSBs blue in q11 + "vsri.u16 q10, q9, #13 \n\t" // Merge three high bits red as LSBs red in q10 + "vst2.16 {q10 - q11}, [%[colors]]! \n\t" // Store q10-q11 to destination + "bge 1b \n\t" // Loop if count >= 0 + // Handle last 8 pixels from main loop. + "vshl.u16 q1, q0, #5 \n\t" // Split green into q1 + "vshl.u16 q3, q0, #11 \n\t" // Split blue into q3 + "vmov.u16 q2, q8 \n\t" // Copy alpha to q2 + "vsri.u16 q1, q1, #6 \n\t" // Insert two high bits green as LSBs green in q1 + "vsri.u16 q2, q3, #8 \n\t" // Merge blue with alpha in q2 + "vsri.u16 q1, q0, #8 \n\t" // Merge red with green in q1 + "vsri.u16 q2, q3, #13 \n\t" // Merge three high bits blue as LSBs blue in q2 + "vsri.u16 q1, q0, #13 \n\t" // Merge three high bits red as LSBs red in q1 + "sub %[count], %[count], #8 \n\t" // Decrease count + "vst2.16 {q1 - q2}, [%[colors]]! \n\t" // Store q1-q2 to destination + "2: \n\t" + "adds %[count], %[count], #20 \n\t" // Add 20 (24 - 4) to see if a 4 loop is needed + "blt 4f \n\t" // + // Handle 4 pixels in slow loop + "3: \n\t" + "vld1.u16 {d0}, [%[src_data]]! \n\t" // Load four RGB565 pixels + "vshl.u16 d2, d0, #5 \n\t" // Split green into d2 + "vshl.u16 d1, d0, #11 \n\t" // Split blue into d1 + "vmov.u16 d3, d16 \n\t" // Copy alpha to d3 + "subs %[count], %[count], #4 \n\t" // Decrease count + "vsri.u16 d2, d2, #6 \n\t" // Insert two high bits green as LSBs green in d2 + "vsri.u16 d3, d1, #8 \n\t" // Merge blue with alpha in d3 + "vsri.u16 d2, d0, #8 \n\t" // Merge red with green in d2 + "vsri.u16 d3, d1, #13 \n\t" // Merge three high bits blue as LSBs blue in d3 + "vsri.u16 d2, d0, #13 \n\t" // Merge three high bits red as LSBs red in d2 + "vst2.16 {d2, d3}, [%[colors]]! \n\t" // Store d2 and d3 to destination + "bge 3b \n\t" // + "4: \n\t" + "add %[count], %[count], #4 \n\t" // Add 4 to count + : [src_data] "+r" (src_data), [colors] "+r" (colors), [count] "+r" (count) + : + : "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d16", "d17", "d18", "d19", "d20", "d21", "d22", "d23", "d24", "d25" + ); + + for (i = (count & 3); i > 0; --i) { + *colors++ = SkPixel16ToPixel32(*src_data++); + } + } else { + // Scaling case + int i; + + for (i = (count >> 2); i > 0; --i) { + uint32_t xx0 = *xy++; + uint32_t xx1 = *xy++; + uint16_t x0 = srcAddr[UNPACK_PRIMARY_SHORT(xx0)]; + uint16_t x1 = srcAddr[UNPACK_SECONDARY_SHORT(xx0)]; + uint16_t x2 = srcAddr[UNPACK_PRIMARY_SHORT(xx1)]; + uint16_t x3 = srcAddr[UNPACK_SECONDARY_SHORT(xx1)]; + + *colors++ = SkPixel16ToPixel32(x0); + *colors++ = SkPixel16ToPixel32(x1); + *colors++ = SkPixel16ToPixel32(x2); + *colors++ = SkPixel16ToPixel32(x3); + } + const uint16_t* SK_RESTRICT xx = (const uint16_t*)(xy); + for (i = (count & 3); i > 0; --i) { + SkASSERT(*xx < (unsigned)s.fBitmap->width()); + src = srcAddr[*xx++]; + *colors++ = SkPixel16ToPixel32(src); + } + } +} #endif @@ -955,6 +1070,14 @@ void SkBitmapProcState::platformProcs() { } #endif break; + case SkBitmap::kRGB_565_Config: +#if defined(__ARM_HAVE_NEON) && defined(SK_CPU_LENDIAN) + if (justDx && !doFilter && isOpaque) { + fSampleProc32 = S16_opaque_D32_nofilter_DX_arm; + fShaderProc32 = NULL; + } +#endif + break; case SkBitmap::kARGB_8888_Config: #if defined(__ARM_HAVE_NEON) && defined(SK_CPU_LENDIAN) if (S32_opaque_D32_filter_DX == fSampleProc32 && clamp_clamp) { |