Mercurial > sdl-ios-xcode
view src/video/SDL_yuv_mmx.c @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Feb 2004 20:22:21 +0000 |
| parents | b8d311d90021 |
| children | b4b64bb88f2f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) #include "SDL_types.h" #ifdef __ELF__ #define ASM_VAR(X) _##X #else #define ASM_VAR(X) X #endif static unsigned int ASM_VAR(MMX_0080w)[] = {0x00800080, 0x00800080}; static unsigned int ASM_VAR(MMX_00FFw)[] = {0x00ff00ff, 0x00ff00ff}; static unsigned int ASM_VAR(MMX_FF00w)[] = {0xff00ff00, 0xff00ff00}; static unsigned short ASM_VAR(MMX_Ycoeff)[] = {0x004a, 0x004a, 0x004a, 0x004a}; static unsigned short ASM_VAR(MMX_UbluRGB)[] = {0x0072, 0x0072, 0x0072, 0x0072}; static unsigned short ASM_VAR(MMX_VredRGB)[] = {0x0059, 0x0059, 0x0059, 0x0059}; static unsigned short ASM_VAR(MMX_UgrnRGB)[] = {0xffea, 0xffea, 0xffea, 0xffea}; static unsigned short ASM_VAR(MMX_VgrnRGB)[] = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; static unsigned short ASM_VAR(MMX_Ublu5x5)[] = {0x0081, 0x0081, 0x0081, 0x0081}; static unsigned short ASM_VAR(MMX_Vred5x5)[] = {0x0066, 0x0066, 0x0066, 0x0066}; static unsigned short ASM_VAR(MMX_Ugrn555)[] = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; static unsigned short ASM_VAR(MMX_Vgrn555)[] = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; static unsigned short ASM_VAR(MMX_Ugrn565)[] = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; static unsigned short ASM_VAR(MMX_Vgrn565)[] = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; static unsigned short ASM_VAR(MMX_red555)[] = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; static unsigned short ASM_VAR(MMX_red565)[] = {0xf800, 0xf800, 0xf800, 0xf800}; static unsigned short ASM_VAR(MMX_grn555)[] = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; static unsigned short ASM_VAR(MMX_grn565)[] = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; static unsigned short ASM_VAR(MMX_blu5x5)[] = {0x001f, 0x001f, 0x001f, 0x001f}; /** This MMX assembler is my first assembler/MMX program ever. Thus it maybe buggy. Send patches to: mvogt@rhrk.uni-kl.de After it worked fine I have "obfuscated" the code a bit to have more parallism in the MMX units. This means I moved initilisation around and delayed other instruction. Performance measurement did not show that this brought any advantage but in theory it _should_ be faster this way. The overall performanve gain to the C based dither was 30%-40%. The MMX routine calculates 256bit=8RGB values in each cycle (4 for row1 & 4 for row2) The red/green/blue.. coefficents are taken from the mpeg_play player. They look nice, but I dont know if you can have better values, to avoid integer rounding errors. IMPORTANT: ========== It is a requirement that the cr/cb/lum are 8 byte aligned and the out are 16byte aligned or you will/may get segfaults */ void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod ) { Uint32 *row1; Uint32 *row2; unsigned char* y = lum +cols*rows; // Pointer to the end int x=0; row1 = (Uint32 *)out; // 32 bit target row2 = (Uint32 *)out+cols+mod; // start of second row mod = (mod+cols+mod)*4; // increment for row1 in byte __asm__ __volatile__ ( /* We don't really care about PIC - the code should be rewritten to use relative addressing for the static tables, so right now we take the COW hit on the pages this code resides. Big deal. This spill is just to reduce register pressure in the PIC case. */ "pushl %%ebx\n" "movl %0, %%ebx\n" ".align 8\n" "1:\n" // create Cr (result in mm1) "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 // create Cr_g (result in mm0) "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 "pmullw _MMX_VgrnRGB,%%mm0\n"// red*-46dec=0.7136*64 "pmullw _MMX_VredRGB,%%mm1\n"// red*89dec=1.4013*64 "psraw $6, %%mm0\n" // red=red/64 "psraw $6, %%mm1\n" // red=red/64 // create L1 L2 (result in mm2,mm4) // L2=lum+cols "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 // create R (result in mm6) "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 // create Cb (result in mm1) "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 // create Cb_g (result in mm5) "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 "psraw $6, %%mm5\n" // blue=red/64 "psraw $6, %%mm1\n" // blue=blue/64 // create G (result in mm7) "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 // create B (result in mm5) "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 // process lower lum "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 "movq %%mm2,(%3)\n" // wrote out ! row1 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 "movq %%mm4,8(%3)\n" // wrote out ! row1 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) // this can be done "destructive" "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 "movq %%mm1,(%5)\n" // wrote out ! row2 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 "movq %%mm5,8(%5)\n" // wrote out ! row2 "addl $4,%2\n" // lum+4 "leal 16(%3),%3\n" // row1+16 "leal 16(%5),%5\n" // row2+16 "addl $2, %%ebx\n" // cr+2 "addl $2, %1\n" // cb+2 "addl $4,%6\n" // x+4 "cmpl %4,%6\n" "jl 1b\n" "addl %4, %2\n" // lum += cols "addl %8, %3\n" // row1+= mod "addl %8, %5\n" // row2+= mod "movl $0, %6\n" // x=0 "cmpl %7, %2\n" "jl 1b\n" "emms\n" "popl %%ebx\n" : : "m" (cr), "r"(cb),"r"(lum), "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) : "%ebx" ); } void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod ) { Uint16 *row1; Uint16 *row2; unsigned char* y = lum +cols*rows; /* Pointer to the end */ int x=0; row1 = (Uint16 *)out; /* 16 bit target */ row2 = (Uint16 *)out+cols+mod; /* start of second row */ mod = (mod+cols+mod)*2; /* increment for row1 in byte */ __asm__ __volatile__( "pushl %%ebx\n" "movl %0, %%ebx\n" ".align 8\n" "1:\n" "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 "pxor %%mm7, %%mm7\n" "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 "psubw _MMX_0080w, %%mm0\n" "psubw _MMX_0080w, %%mm1\n" "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 "movq %%mm1, %%mm3\n" // Cr "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green "movq (%2), %%mm7\n" // L2 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 "movq %%mm6, %%mm4\n" // lum1 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 "movq %%mm4, %%mm5\n" // lum1 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 "psraw $6, %%mm4\n" // R1 0 .. 64 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 "psraw $6, %%mm5\n" // G1 - .. + "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 "psraw $6, %%mm6\n" // B1 0 .. 64 "packuswb %%mm4, %%mm4\n" // R1 R1 "packuswb %%mm5, %%mm5\n" // G1 G1 "packuswb %%mm6, %%mm6\n" // B1 B1 "punpcklbw %%mm4, %%mm4\n" "punpcklbw %%mm5, %%mm5\n" "pand _MMX_red565, %%mm4\n" "psllw $3, %%mm5\n" // GREEN 1 "punpcklbw %%mm6, %%mm6\n" "pand _MMX_grn565, %%mm5\n" "pand _MMX_red565, %%mm6\n" "por %%mm5, %%mm4\n" // "psrlw $11, %%mm6\n" // BLUE 1 "movq %%mm3, %%mm5\n" // lum2 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 "psraw $6, %%mm3\n" // R2 "por %%mm6, %%mm4\n" // MM4 "psraw $6, %%mm5\n" // G2 "movq (%2, %4), %%mm6\n" // L3 load lum2 "psraw $6, %%mm7\n" "packuswb %%mm3, %%mm3\n" "packuswb %%mm5, %%mm5\n" "packuswb %%mm7, %%mm7\n" "pand _MMX_00FFw, %%mm6\n" // L3 "punpcklbw %%mm3, %%mm3\n" "punpcklbw %%mm5, %%mm5\n" "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 "punpcklbw %%mm7, %%mm7\n" "psllw $3, %%mm5\n" // GREEN 2 "pand _MMX_red565, %%mm7\n" "pand _MMX_red565, %%mm3\n" "psrlw $11, %%mm7\n" // BLUE 2 "pand _MMX_grn565, %%mm5\n" "por %%mm7, %%mm3\n" "movq (%2,%4), %%mm7\n" // L4 load lum2 "por %%mm5, %%mm3\n" // "psrlw $8, %%mm7\n" // L4 "movq %%mm4, %%mm5\n" "punpcklwd %%mm3, %%mm4\n" "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 "punpckhwd %%mm3, %%mm5\n" "movq %%mm4, (%3)\n" // write row1 "movq %%mm5, 8(%3)\n" // write row1 "movq %%mm6, %%mm4\n" // Lum3 "paddw %%mm0, %%mm6\n" // Lum3 +blue "movq %%mm4, %%mm5\n" // Lum3 "paddw %%mm1, %%mm4\n" // Lum3 +red "paddw %%mm2, %%mm5\n" // Lum3 +green "psraw $6, %%mm4\n" "movq %%mm7, %%mm3\n" // Lum4 "psraw $6, %%mm5\n" "paddw %%mm0, %%mm7\n" // Lum4 +blue "psraw $6, %%mm6\n" // Lum3 +blue "movq %%mm3, %%mm0\n" // Lum4 "packuswb %%mm4, %%mm4\n" "paddw %%mm1, %%mm3\n" // Lum4 +red "packuswb %%mm5, %%mm5\n" "paddw %%mm2, %%mm0\n" // Lum4 +green "packuswb %%mm6, %%mm6\n" "punpcklbw %%mm4, %%mm4\n" "punpcklbw %%mm5, %%mm5\n" "punpcklbw %%mm6, %%mm6\n" "psllw $3, %%mm5\n" // GREEN 3 "pand _MMX_red565, %%mm4\n" "psraw $6, %%mm3\n" // psr 6 "psraw $6, %%mm0\n" "pand _MMX_red565, %%mm6\n" // BLUE "pand _MMX_grn565, %%mm5\n" "psrlw $11, %%mm6\n" // BLUE 3 "por %%mm5, %%mm4\n" "psraw $6, %%mm7\n" "por %%mm6, %%mm4\n" "packuswb %%mm3, %%mm3\n" "packuswb %%mm0, %%mm0\n" "packuswb %%mm7, %%mm7\n" "punpcklbw %%mm3, %%mm3\n" "punpcklbw %%mm0, %%mm0\n" "punpcklbw %%mm7, %%mm7\n" "pand _MMX_red565, %%mm3\n" "pand _MMX_red565, %%mm7\n" // BLUE "psllw $3, %%mm0\n" // GREEN 4 "psrlw $11, %%mm7\n" "pand _MMX_grn565, %%mm0\n" "por %%mm7, %%mm3\n" "por %%mm0, %%mm3\n" "movq %%mm4, %%mm5\n" "punpcklwd %%mm3, %%mm4\n" "punpckhwd %%mm3, %%mm5\n" "movq %%mm4, (%5)\n" "movq %%mm5, 8(%5)\n" "addl $8, %6\n" "addl $8, %2\n" "addl $4, %%ebx\n" "addl $4, %1\n" "cmpl %4, %6\n" "leal 16(%3), %3\n" "leal 16(%5),%5\n" // row2+16 "jl 1b\n" "addl %4, %2\n" // lum += cols "addl %8, %3\n" // row1+= mod "addl %8, %5\n" // row2+= mod "movl $0, %6\n" // x=0 "cmpl %7, %2\n" "jl 1b\n" "emms\n" "popl %%ebx\n" : :"m" (cr), "r"(cb),"r"(lum), "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) : "%ebx" ); } #endif /* GCC i386 inline assembly */