/* * yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology" * * Copyright (C) 2000, Silicon Integrated System Corp. * All Rights Reserved. * * Author: Olie Lho * * This file is part of mpeg2dec, a free MPEG-2 video decoder * * mpeg2dec is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * mpeg2dec is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GNU Make; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include #include "mmx.h" //#include "libmpeg2/mpeg2.h" //#include "libmpeg2/mpeg2_internal.h" #include #include "yuv2rgb.h" /* hope these constant values are cache line aligned */ uint64_t mmx_80w = 0x0080008000800080; uint64_t mmx_10w = 0x1010101010101010; uint64_t mmx_00ffw = 0x00ff00ff00ff00ff; uint64_t mmx_Y_coeff = 0x253f253f253f253f; /* hope these constant values are cache line aligned */ uint64_t mmx_U_green = 0xf37df37df37df37d; uint64_t mmx_U_blue = 0x4093409340934093; uint64_t mmx_V_red = 0x3312331233123312; uint64_t mmx_V_green = 0xe5fce5fce5fce5fc; /* hope these constant values are cache line aligned */ uint64_t mmx_redmask = 0xf8f8f8f8f8f8f8f8; uint64_t mmx_grnmask = 0xfcfcfcfcfcfcfcfc; uint64_t mmx_grnshift = 0x03; uint64_t mmx_blueshift = 0x03; #if defined (HAVE_SSE) || defined (HAVE_3DNOW) #define movntq "movntq" // use this for processors that have SSE or 3Dnow #else #define movntq "movq" // for MMX-only processors #endif static void yuv420_rgb16_mmx (uint8_t * image, uint8_t * py, uint8_t * pu, uint8_t * pv, int h_size, int v_size, int rgb_stride, int y_stride, int uv_stride) { int even = 1; int x = 0, y = 0; /* load data for first scan line */ __asm__ ( "movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0\n\t" "movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0\n\t" "pxor %%mm4, %%mm4 # zero mm4\n\t" "movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" //"movl $0, (%3) # cache preload for image\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image)); do { do { /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ (".align 8 \n\t" /* Do the multiply part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */ /* convert the chroma part */ "punpcklbw %%mm4, %%mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0\n\t" "punpcklbw %%mm4, %%mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0\n\t" "psubsw mmx_80w, %%mm0 # Cb -= 128\n\t" "psubsw mmx_80w, %%mm1 # Cr -= 128\n\t" "psllw $3, %%mm0 # Promote precision\n\t" "psllw $3, %%mm1 # Promote precision\n\t" "movq %%mm0, %%mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0\n\t" "movq %%mm1, %%mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0\n\t" "pmulhw mmx_U_green, %%mm2# Mul Cb with green coeff -> Cb green\n\t" "pmulhw mmx_V_green, %%mm3# Mul Cr with green coeff -> Cr green\n\t" "pmulhw mmx_U_blue, %%mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0\n\t" "pmulhw mmx_V_red, %%mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0\n\t" "paddsw %%mm3, %%mm2 # Cb green + Cr green -> Cgreen\n\t" /* convert the luma part */ "psubusb mmx_10w, %%mm6 # Y -= 16\n\t" "movq %%mm6, %%mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" "pand mmx_00ffw, %%mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0\n\t" "psrlw $8, %%mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1\n\t" "psllw $3, %%mm6 # Promote precision\n\t" "psllw $3, %%mm7 # Promote precision\n\t" "pmulhw mmx_Y_coeff, %%mm6# Mul 4 Y even 00 y6 00 y4 00 y2 00 y0\n\t" "pmulhw mmx_Y_coeff, %%mm7# Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1\n\t" /* Do the addition part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */ "movq %%mm0, %%mm3 # Copy Cblue\n\t" "movq %%mm1, %%mm4 # Copy Cred\n\t" "movq %%mm2, %%mm5 # Copy Cgreen\n\t" "paddsw %%mm6, %%mm0 # Y even + Cblue 00 B6 00 B4 00 B2 00 B0\n\t" "paddsw %%mm7, %%mm3 # Y odd + Cblue 00 B7 00 B5 00 B3 00 B1\n\t" "paddsw %%mm6, %%mm1 # Y even + Cred 00 R6 00 R4 00 R2 00 R0\n\t" "paddsw %%mm7, %%mm4 # Y odd + Cred 00 R7 00 R5 00 R3 00 R1\n\t" "paddsw %%mm6, %%mm2 # Y even + Cgreen 00 G6 00 G4 00 G2 00 G0\n\t" "paddsw %%mm7, %%mm5 # Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1\n\t" /* Limit RGB even to 0..255 */ "packuswb %%mm0, %%mm0 # B6 B4 B2 B0 | B6 B4 B2 B0\n\t" "packuswb %%mm1, %%mm1 # R6 R4 R2 R0 | R6 R4 R2 R0\n\t" "packuswb %%mm2, %%mm2 # G6 G4 G2 G0 | G6 G4 G2 G0\n\t" /* Limit RGB odd to 0..255 */ "packuswb %%mm3, %%mm3 # B7 B5 B3 B1 | B7 B5 B3 B1\n\t" "packuswb %%mm4, %%mm4 # R7 R5 R3 R1 | R7 R5 R3 R1\n\t" "packuswb %%mm5, %%mm5 # G7 G5 G3 G1 | G7 G5 G3 G1\n\t" /* Interleave RGB even and odd */ "punpcklbw %%mm3, %%mm0 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "punpcklbw %%mm4, %%mm1 # R7 R6 R5 R4 R3 R2 R1 R0\n\t" "punpcklbw %%mm5, %%mm2 # G7 G6 G5 G4 G3 G2 G1 G0\n\t" /* mask unneeded bits off */ "pand mmx_redmask, %%mm0# b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0\n\t" "pand mmx_grnmask, %%mm2# g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0\n\t" "pand mmx_redmask, %%mm1# r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0\n\t" "psrlw mmx_blueshift,%%mm0#0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3\n\t" "pxor %%mm4, %%mm4 # zero mm4\n\t" "movq %%mm0, %%mm5 # Copy B7-B0\n\t" "movq %%mm2, %%mm7 # Copy G7-G0\n\t" /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpcklbw %%mm4, %%mm2 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0\n\t" "punpcklbw %%mm1, %%mm0 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3\n\t" "psllw mmx_blueshift,%%mm2# 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0\n\t" "por %%mm2, %%mm0 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3\n\t" "movq 8 (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" movntq " %%mm0, (%3) # store pixel 0-3\n\t" /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpckhbw %%mm4, %%mm7 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0\n\t" "punpckhbw %%mm1, %%mm5 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3\n\t" "psllw mmx_blueshift,%%mm7# 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0\n\t" "movd 4 (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0\n\t" "por %%mm7, %%mm5 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3\n\t" "movd 4 (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0\n\t" movntq " %%mm5, 8 (%3) # store pixel 4-7\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image)); py += 8; pu += 4; pv += 4; image += 16; x += 8; } while (x < h_size); if (even) { pu -= h_size/2; pv -= h_size/2; } else { pu += (uv_stride - h_size/2); pv += (uv_stride - h_size/2); } py += (y_stride - h_size); image += (rgb_stride - 2*h_size); /* load data for start of next scan line */ __asm__ ( "movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 00 u3 u2 u1 u0\n\t" "movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 00 v2 v1 v0\n\t" //"movl $0, (%3) # cache preload for image\n\t" "movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image)); x = 0; y += 1; even = (!even); } while (y < v_size) ; __asm__ ("emms\n\t"); } static void yuv420_argb32_mmx (uint8_t * image, uint8_t * py, uint8_t * pu, uint8_t * pv, int h_size, int v_size, int rgb_stride, int y_stride, int uv_stride) { int even = 1; int x = 0, y = 0; __asm__ ( ".align 8 \n\t" "movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0\n\t" //"movl $0, (%3) # cache preload for image\n\t" "movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0\n\t" "pxor %%mm4, %%mm4 # zero mm4\n\t" "movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image)); do { do { /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ ( ".align 8 \n\t" /* Do the multiply part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */ /* convert the chroma part */ "punpcklbw %%mm4, %%mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0\n\t" "punpcklbw %%mm4, %%mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0\n\t" "psubsw mmx_80w, %%mm0 # Cb -= 128\n\t" "psubsw mmx_80w, %%mm1 # Cr -= 128\n\t" "psllw $3, %%mm0 # Promote precision\n\t" "psllw $3, %%mm1 # Promote precision\n\t" "movq %%mm0, %%mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0\n\t" "movq %%mm1, %%mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0\n\t" "pmulhw mmx_U_green, %%mm2# Mul Cb with green coeff -> Cb green\n\t" "pmulhw mmx_V_green, %%mm3# Mul Cr with green coeff -> Cr green\n\t" "pmulhw mmx_U_blue, %%mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0\n\t" "pmulhw mmx_V_red, %%mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0\n\t" "paddsw %%mm3, %%mm2 # Cb green + Cr green -> Cgreen\n\t" /* convert the luma part */ "psubusb mmx_10w, %%mm6 # Y -= 16\n\t" "movq %%mm6, %%mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" "pand mmx_00ffw, %%mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0\n\t" "psrlw $8, %%mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1\n\t" "psllw $3, %%mm6 # Promote precision\n\t" "psllw $3, %%mm7 # Promote precision\n\t" "pmulhw mmx_Y_coeff, %%mm6# Mul 4 Y even 00 y6 00 y4 00 y2 00 y0\n\t" "pmulhw mmx_Y_coeff, %%mm7# Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1\n\t" /* Do the addition part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */ "movq %%mm0, %%mm3 # Copy Cblue\n\t" "movq %%mm1, %%mm4 # Copy Cred\n\t" "movq %%mm2, %%mm5 # Copy Cgreen\n\t" "paddsw %%mm6, %%mm0 # Y even + Cblue 00 B6 00 B4 00 B2 00 B0\n\t" "paddsw %%mm7, %%mm3 # Y odd + Cblue 00 B7 00 B5 00 B3 00 B1\n\t" "paddsw %%mm6, %%mm1 # Y even + Cred 00 R6 00 R4 00 R2 00 R0\n\t" "paddsw %%mm7, %%mm4 # Y odd + Cred 00 R7 00 R5 00 R3 00 R1\n\t" "paddsw %%mm6, %%mm2 # Y even + Cgreen 00 G6 00 G4 00 G2 00 G0\n\t" "paddsw %%mm7, %%mm5 # Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1\n\t" /* Limit RGB even to 0..255 */ "packuswb %%mm0, %%mm0 # B6 B4 B2 B0 B6 B4 B2 B0\n\t" "packuswb %%mm1, %%mm1 # R6 R4 R2 R0 R6 R4 R2 R0\n\t" "packuswb %%mm2, %%mm2 # G6 G4 G2 G0 G6 G4 G2 G0\n\t" /* Limit RGB odd to 0..255 */ "packuswb %%mm3, %%mm3 # B7 B5 B3 B1 B7 B5 B3 B1\n\t" "packuswb %%mm4, %%mm4 # R7 R5 R3 R1 R7 R5 R3 R1\n\t" "packuswb %%mm5, %%mm5 # G7 G5 G3 G1 G7 G5 G3 G1\n\t" /* Interleave RGB even and odd */ "punpcklbw %%mm3, %%mm0 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "punpcklbw %%mm4, %%mm1 # R7 R6 R5 R4 R3 R2 R1 R0\n\t" "punpcklbw %%mm5, %%mm2 # G7 G6 G5 G4 G3 G2 G1 G0\n\t" /* convert RGB plane to RGB packed format, mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0, mm4 -> GB, mm5 -> AR pixel 4-7, mm6 -> GB, mm7 -> AR pixel 0-3 */ "pxor %%mm3, %%mm3 # zero mm3\n\t" "movq %%mm0, %%mm6 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "movq %%mm1, %%mm7 # R7 R6 R5 R4 R3 R2 R1 R0\n\t" "movq %%mm0, %%mm4 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "movq %%mm1, %%mm5 # R7 R6 R5 R4 R3 R2 R1 R0\n\t" "punpcklbw %%mm2, %%mm6 # G3 B3 G2 B2 G1 B1 G0 B0\n\t" "punpcklbw %%mm3, %%mm7 # 00 R3 00 R2 00 R1 00 R0\n\t" "punpcklwd %%mm7, %%mm6 # 00 R1 B1 G1 00 R0 B0 G0\n\t" movntq " %%mm6, (%3) # Store ARGB1 ARGB0\n\t" "movq %%mm0, %%mm6 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "punpcklbw %%mm2, %%mm6 # G3 B3 G2 B2 G1 B1 G0 B0\n\t" "punpckhwd %%mm7, %%mm6 # 00 R3 G3 B3 00 R2 B3 G2\n\t" movntq " %%mm6, 8 (%3) # Store ARGB3 ARGB2\n\t" "punpckhbw %%mm2, %%mm4 # G7 B7 G6 B6 G5 B5 G4 B4\n\t" "punpckhbw %%mm3, %%mm5 # 00 R7 00 R6 00 R5 00 R4\n\t" "punpcklwd %%mm5, %%mm4 # 00 R5 B5 G5 00 R4 B4 G4\n\t" movntq " %%mm4, 16 (%3) # Store ARGB5 ARGB4\n\t" "movq %%mm0, %%mm4 # B7 B6 B5 B4 B3 B2 B1 B0\n\t" "punpckhbw %%mm2, %%mm4 # G7 B7 G6 B6 G5 B5 G4 B4\n\t" "punpckhwd %%mm5, %%mm4 # 00 R7 G7 B7 00 R6 B6 G6\n\t" movntq " %%mm4, 24 (%3) # Store ARGB7 ARGB6\n\t" "movd 4 (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0\n\t" "movd 4 (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0\n\t" "pxor %%mm4, %%mm4 # zero mm4\n\t" "movq 8 (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image)); py += 8; pu += 4; pv += 4; image += 32; x += 8; } while (x < h_size); if (even) { pu -= h_size/2; pv -= h_size/2; } else { pu += (uv_stride - h_size/2); pv += (uv_stride - h_size/2); } py += (y_stride - h_size); image += (rgb_stride - 4*h_size); /* load data for start of next scan line */ __asm__ ( ".align 8 \n\t" "movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0\n\t" "movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0\n\t" //"movl $0, (%3) # cache preload for image\n\t" "movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0\n\t" : : "r" (py), "r" (pu), "r" (pv), "r" (image) ); x = 0; y += 1; even = (!even); } while ( y < v_size) ; __asm__ ("emms\n\t"); } yuv2rgb_fun yuv2rgb_init_mmx (int bpp, int mode) { // if (bpp == 15 || bpp == 16) { if (bpp == 16 && mode == MODE_RGB) return yuv420_rgb16_mmx; if (bpp == 32 && mode == MODE_RGB) return yuv420_argb32_mmx; return NULL; // Fallback to C. }