| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // Use of this source code is governed by a BSD-style license |
| // that can be found in the COPYING file in the root of the source |
| // tree. An additional intellectual property rights grant can be found |
| // in the file PATENTS. All contributing project authors may |
| // be found in the AUTHORS file in the root of the source tree. |
| // ----------------------------------------------------------------------------- |
| // |
| // MSA variant of methods for lossless decoder |
| // |
| // Author: Prashant Patil (prashant.patil@imgtec.com) |
| |
| #include "src/dsp/dsp.h" |
| |
| #if defined(WEBP_USE_MSA) |
| |
| #include "src/dsp/lossless.h" |
| #include "src/dsp/msa_macro.h" |
| |
| //------------------------------------------------------------------------------ |
| // Colorspace conversion functions |
| |
| #define CONVERT16_BGRA_XXX(psrc, pdst, m0, m1, m2) do { \ |
| v16u8 src0, src1, src2, src3, dst0, dst1, dst2; \ |
| LD_UB4(psrc, 16, src0, src1, src2, src3); \ |
| VSHF_B2_UB(src0, src1, src1, src2, m0, m1, dst0, dst1); \ |
| dst2 = VSHF_UB(src2, src3, m2); \ |
| ST_UB2(dst0, dst1, pdst, 16); \ |
| ST_UB(dst2, pdst + 32); \ |
| } while (0) |
| |
| #define CONVERT12_BGRA_XXX(psrc, pdst, m0, m1, m2) do { \ |
| uint32_t pix_w; \ |
| v16u8 src0, src1, src2, dst0, dst1, dst2; \ |
| LD_UB3(psrc, 16, src0, src1, src2); \ |
| VSHF_B2_UB(src0, src1, src1, src2, m0, m1, dst0, dst1); \ |
| dst2 = VSHF_UB(src2, src2, m2); \ |
| ST_UB2(dst0, dst1, pdst, 16); \ |
| pix_w = __msa_copy_s_w((v4i32)dst2, 0); \ |
| SW(pix_w, pdst + 32); \ |
| } while (0) |
| |
| #define CONVERT8_BGRA_XXX(psrc, pdst, m0, m1) do { \ |
| uint64_t pix_d; \ |
| v16u8 src0, src1, src2 = { 0 }, dst0, dst1; \ |
| LD_UB2(psrc, 16, src0, src1); \ |
| VSHF_B2_UB(src0, src1, src1, src2, m0, m1, dst0, dst1); \ |
| ST_UB(dst0, pdst); \ |
| pix_d = __msa_copy_s_d((v2i64)dst1, 0); \ |
| SD(pix_d, pdst + 16); \ |
| } while (0) |
| |
| #define CONVERT4_BGRA_XXX(psrc, pdst, m) do { \ |
| const v16u8 src0 = LD_UB(psrc); \ |
| const v16u8 dst0 = VSHF_UB(src0, src0, m); \ |
| uint64_t pix_d = __msa_copy_s_d((v2i64)dst0, 0); \ |
| uint32_t pix_w = __msa_copy_s_w((v4i32)dst0, 2); \ |
| SD(pix_d, pdst + 0); \ |
| SW(pix_w, pdst + 8); \ |
| } while (0) |
| |
| #define CONVERT1_BGRA_BGR(psrc, pdst) do { \ |
| const int32_t b = (psrc)[0]; \ |
| const int32_t g = (psrc)[1]; \ |
| const int32_t r = (psrc)[2]; \ |
| (pdst)[0] = b; \ |
| (pdst)[1] = g; \ |
| (pdst)[2] = r; \ |
| } while (0) |
| |
| #define CONVERT1_BGRA_RGB(psrc, pdst) do { \ |
| const int32_t b = (psrc)[0]; \ |
| const int32_t g = (psrc)[1]; \ |
| const int32_t r = (psrc)[2]; \ |
| (pdst)[0] = r; \ |
| (pdst)[1] = g; \ |
| (pdst)[2] = b; \ |
| } while (0) |
| |
| #define TRANSFORM_COLOR_INVERSE_8(src0, src1, dst0, dst1, \ |
| c0, c1, mask0, mask1) do { \ |
| v8i16 g0, g1, t0, t1, t2, t3; \ |
| v4i32 t4, t5; \ |
| VSHF_B2_SH(src0, src0, src1, src1, mask0, mask0, g0, g1); \ |
| DOTP_SB2_SH(g0, g1, c0, c0, t0, t1); \ |
| SRAI_H2_SH(t0, t1, 5); \ |
| t0 = __msa_addv_h(t0, (v8i16)src0); \ |
| t1 = __msa_addv_h(t1, (v8i16)src1); \ |
| t4 = __msa_srli_w((v4i32)t0, 16); \ |
| t5 = __msa_srli_w((v4i32)t1, 16); \ |
| DOTP_SB2_SH(t4, t5, c1, c1, t2, t3); \ |
| SRAI_H2_SH(t2, t3, 5); \ |
| ADD2(t0, t2, t1, t3, t0, t1); \ |
| VSHF_B2_UB(src0, t0, src1, t1, mask1, mask1, dst0, dst1); \ |
| } while (0) |
| |
| #define TRANSFORM_COLOR_INVERSE_4(src, dst, c0, c1, mask0, mask1) do { \ |
| const v16i8 g0 = VSHF_SB(src, src, mask0); \ |
| v8i16 t0 = __msa_dotp_s_h(c0, g0); \ |
| v8i16 t1; \ |
| v4i32 t2; \ |
| t0 = SRAI_H(t0, 5); \ |
| t0 = __msa_addv_h(t0, (v8i16)src); \ |
| t2 = __msa_srli_w((v4i32)t0, 16); \ |
| t1 = __msa_dotp_s_h(c1, (v16i8)t2); \ |
| t1 = SRAI_H(t1, 5); \ |
| t0 = t0 + t1; \ |
| dst = VSHF_UB(src, t0, mask1); \ |
| } while (0) |
| |
| static void ConvertBGRAToRGBA_MSA(const uint32_t* src, |
| int num_pixels, uint8_t* dst) { |
| int i; |
| const uint8_t* ptemp_src = (const uint8_t*)src; |
| uint8_t* ptemp_dst = (uint8_t*)dst; |
| v16u8 src0, dst0; |
| const v16u8 mask = { 2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15 }; |
| |
| while (num_pixels >= 8) { |
| v16u8 src1, dst1; |
| LD_UB2(ptemp_src, 16, src0, src1); |
| VSHF_B2_UB(src0, src0, src1, src1, mask, mask, dst0, dst1); |
| ST_UB2(dst0, dst1, ptemp_dst, 16); |
| ptemp_src += 32; |
| ptemp_dst += 32; |
| num_pixels -= 8; |
| } |
| if (num_pixels > 0) { |
| if (num_pixels >= 4) { |
| src0 = LD_UB(ptemp_src); |
| dst0 = VSHF_UB(src0, src0, mask); |
| ST_UB(dst0, ptemp_dst); |
| ptemp_src += 16; |
| ptemp_dst += 16; |
| num_pixels -= 4; |
| } |
| for (i = 0; i < num_pixels; i++) { |
| const uint8_t b = ptemp_src[2]; |
| const uint8_t g = ptemp_src[1]; |
| const uint8_t r = ptemp_src[0]; |
| const uint8_t a = ptemp_src[3]; |
| ptemp_dst[0] = b; |
| ptemp_dst[1] = g; |
| ptemp_dst[2] = r; |
| ptemp_dst[3] = a; |
| ptemp_src += 4; |
| ptemp_dst += 4; |
| } |
| } |
| } |
| |
| static void ConvertBGRAToBGR_MSA(const uint32_t* src, |
| int num_pixels, uint8_t* dst) { |
| const uint8_t* ptemp_src = (const uint8_t*)src; |
| uint8_t* ptemp_dst = (uint8_t*)dst; |
| const v16u8 mask0 = { 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, |
| 16, 17, 18, 20 }; |
| const v16u8 mask1 = { 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 20, |
| 21, 22, 24, 25 }; |
| const v16u8 mask2 = { 10, 12, 13, 14, 16, 17, 18, 20, 21, 22, 24, 25, |
| 26, 28, 29, 30 }; |
| |
| while (num_pixels >= 16) { |
| CONVERT16_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1, mask2); |
| ptemp_src += 64; |
| ptemp_dst += 48; |
| num_pixels -= 16; |
| } |
| if (num_pixels > 0) { |
| if (num_pixels >= 12) { |
| CONVERT12_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1, mask2); |
| ptemp_src += 48; |
| ptemp_dst += 36; |
| num_pixels -= 12; |
| } else if (num_pixels >= 8) { |
| CONVERT8_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1); |
| ptemp_src += 32; |
| ptemp_dst += 24; |
| num_pixels -= 8; |
| } else if (num_pixels >= 4) { |
| CONVERT4_BGRA_XXX(ptemp_src, ptemp_dst, mask0); |
| ptemp_src += 16; |
| ptemp_dst += 12; |
| num_pixels -= 4; |
| } |
| if (num_pixels == 3) { |
| CONVERT1_BGRA_BGR(ptemp_src + 0, ptemp_dst + 0); |
| CONVERT1_BGRA_BGR(ptemp_src + 4, ptemp_dst + 3); |
| CONVERT1_BGRA_BGR(ptemp_src + 8, ptemp_dst + 6); |
| } else if (num_pixels == 2) { |
| CONVERT1_BGRA_BGR(ptemp_src + 0, ptemp_dst + 0); |
| CONVERT1_BGRA_BGR(ptemp_src + 4, ptemp_dst + 3); |
| } else if (num_pixels == 1) { |
| CONVERT1_BGRA_BGR(ptemp_src, ptemp_dst); |
| } |
| } |
| } |
| |
| static void ConvertBGRAToRGB_MSA(const uint32_t* src, |
| int num_pixels, uint8_t* dst) { |
| const uint8_t* ptemp_src = (const uint8_t*)src; |
| uint8_t* ptemp_dst = (uint8_t*)dst; |
| const v16u8 mask0 = { 2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, |
| 18, 17, 16, 22 }; |
| const v16u8 mask1 = { 5, 4, 10, 9, 8, 14, 13, 12, 18, 17, 16, 22, |
| 21, 20, 26, 25 }; |
| const v16u8 mask2 = { 8, 14, 13, 12, 18, 17, 16, 22, 21, 20, 26, 25, |
| 24, 30, 29, 28 }; |
| |
| while (num_pixels >= 16) { |
| CONVERT16_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1, mask2); |
| ptemp_src += 64; |
| ptemp_dst += 48; |
| num_pixels -= 16; |
| } |
| if (num_pixels) { |
| if (num_pixels >= 12) { |
| CONVERT12_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1, mask2); |
| ptemp_src += 48; |
| ptemp_dst += 36; |
| num_pixels -= 12; |
| } else if (num_pixels >= 8) { |
| CONVERT8_BGRA_XXX(ptemp_src, ptemp_dst, mask0, mask1); |
| ptemp_src += 32; |
| ptemp_dst += 24; |
| num_pixels -= 8; |
| } else if (num_pixels >= 4) { |
| CONVERT4_BGRA_XXX(ptemp_src, ptemp_dst, mask0); |
| ptemp_src += 16; |
| ptemp_dst += 12; |
| num_pixels -= 4; |
| } |
| if (num_pixels == 3) { |
| CONVERT1_BGRA_RGB(ptemp_src + 0, ptemp_dst + 0); |
| CONVERT1_BGRA_RGB(ptemp_src + 4, ptemp_dst + 3); |
| CONVERT1_BGRA_RGB(ptemp_src + 8, ptemp_dst + 6); |
| } else if (num_pixels == 2) { |
| CONVERT1_BGRA_RGB(ptemp_src + 0, ptemp_dst + 0); |
| CONVERT1_BGRA_RGB(ptemp_src + 4, ptemp_dst + 3); |
| } else if (num_pixels == 1) { |
| CONVERT1_BGRA_RGB(ptemp_src, ptemp_dst); |
| } |
| } |
| } |
| |
| static void AddGreenToBlueAndRed_MSA(const uint32_t* const src, int num_pixels, |
| uint32_t* dst) { |
| int i; |
| const uint8_t* in = (const uint8_t*)src; |
| uint8_t* out = (uint8_t*)dst; |
| v16u8 src0, dst0, tmp0; |
| const v16u8 mask = { 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, |
| 13, 255, 13, 255 }; |
| |
| while (num_pixels >= 8) { |
| v16u8 src1, dst1, tmp1; |
| LD_UB2(in, 16, src0, src1); |
| VSHF_B2_UB(src0, src1, src1, src0, mask, mask, tmp0, tmp1); |
| ADD2(src0, tmp0, src1, tmp1, dst0, dst1); |
| ST_UB2(dst0, dst1, out, 16); |
| in += 32; |
| out += 32; |
| num_pixels -= 8; |
| } |
| if (num_pixels > 0) { |
| if (num_pixels >= 4) { |
| src0 = LD_UB(in); |
| tmp0 = VSHF_UB(src0, src0, mask); |
| dst0 = src0 + tmp0; |
| ST_UB(dst0, out); |
| in += 16; |
| out += 16; |
| num_pixels -= 4; |
| } |
| for (i = 0; i < num_pixels; i++) { |
| const uint8_t b = in[0]; |
| const uint8_t g = in[1]; |
| const uint8_t r = in[2]; |
| out[0] = (b + g) & 0xff; |
| out[1] = g; |
| out[2] = (r + g) & 0xff; |
| out[4] = in[4]; |
| out += 4; |
| } |
| } |
| } |
| |
| static void TransformColorInverse_MSA(const VP8LMultipliers* const m, |
| const uint32_t* src, int num_pixels, |
| uint32_t* dst) { |
| v16u8 src0, dst0; |
| const v16i8 g2br = (v16i8)__msa_fill_w(m->green_to_blue_ | |
| (m->green_to_red_ << 16)); |
| const v16i8 r2b = (v16i8)__msa_fill_w(m->red_to_blue_); |
| const v16u8 mask0 = { 1, 255, 1, 255, 5, 255, 5, 255, 9, 255, 9, 255, |
| 13, 255, 13, 255 }; |
| const v16u8 mask1 = { 16, 1, 18, 3, 20, 5, 22, 7, 24, 9, 26, 11, |
| 28, 13, 30, 15 }; |
| |
| while (num_pixels >= 8) { |
| v16u8 src1, dst1; |
| LD_UB2(src, 4, src0, src1); |
| TRANSFORM_COLOR_INVERSE_8(src0, src1, dst0, dst1, g2br, r2b, mask0, mask1); |
| ST_UB2(dst0, dst1, dst, 4); |
| src += 8; |
| dst += 8; |
| num_pixels -= 8; |
| } |
| if (num_pixels > 0) { |
| if (num_pixels >= 4) { |
| src0 = LD_UB(src); |
| TRANSFORM_COLOR_INVERSE_4(src0, dst0, g2br, r2b, mask0, mask1); |
| ST_UB(dst0, dst); |
| src += 4; |
| dst += 4; |
| num_pixels -= 4; |
| } |
| if (num_pixels > 0) { |
| src0 = LD_UB(src); |
| TRANSFORM_COLOR_INVERSE_4(src0, dst0, g2br, r2b, mask0, mask1); |
| if (num_pixels == 3) { |
| const uint64_t pix_d = __msa_copy_s_d((v2i64)dst0, 0); |
| const uint32_t pix_w = __msa_copy_s_w((v4i32)dst0, 2); |
| SD(pix_d, dst + 0); |
| SW(pix_w, dst + 2); |
| } else if (num_pixels == 2) { |
| const uint64_t pix_d = __msa_copy_s_d((v2i64)dst0, 0); |
| SD(pix_d, dst); |
| } else { |
| const uint32_t pix_w = __msa_copy_s_w((v4i32)dst0, 0); |
| SW(pix_w, dst); |
| } |
| } |
| } |
| } |
| |
| //------------------------------------------------------------------------------ |
| // Entry point |
| |
| extern void VP8LDspInitMSA(void); |
| |
| WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMSA(void) { |
| VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA_MSA; |
| VP8LConvertBGRAToBGR = ConvertBGRAToBGR_MSA; |
| VP8LConvertBGRAToRGB = ConvertBGRAToRGB_MSA; |
| |
| VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed_MSA; |
| VP8LTransformColorInverse = TransformColorInverse_MSA; |
| } |
| |
| #else // !WEBP_USE_MSA |
| |
| WEBP_DSP_INIT_STUB(VP8LDspInitMSA) |
| |
| #endif // WEBP_USE_MSA |
