537 lines
13 KiB
C
537 lines
13 KiB
C
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#ifndef _BLENDING_H_
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#define _BLENDING_H_
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//#include <bfc/common.h>
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#include <bfc/platform/types.h>
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class Blenders
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{
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public:
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static void init();
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static unsigned int inline BLEND_ADJ1(unsigned int a, unsigned int b, int alpha);
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static unsigned int inline BLEND_ADJ2(unsigned int a, unsigned int b);
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static unsigned int inline BLEND_ADJ3(unsigned int a, unsigned int b, int alpha);
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static unsigned int inline BLEND_MUL(unsigned int a, int v);
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static unsigned int inline BLEND_AVG(unsigned int a, unsigned int b);
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static unsigned int inline BLEND4(unsigned int *p1, unsigned int w, int xp, int yp);
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#ifndef NO_MMX
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static int inline MMX_AVAILABLE() { return mmx_available; }
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static unsigned int inline BLEND_ADJ1_MMX(unsigned int a, unsigned int b, int alpha);
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static unsigned int inline BLEND_ADJ2_MMX(unsigned int a, unsigned int b);
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static unsigned int inline BLEND_ADJ3_MMX(unsigned int a, unsigned int b, int alpha);
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static unsigned int inline BLEND_MUL_MMX(unsigned int a, int v);
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static unsigned int inline BLEND_AVG_MMX(unsigned int a, unsigned int b);
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static unsigned int inline BLEND4_MMX(unsigned int *p1, unsigned int w, int xp, int yp);
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static void inline BLEND_MMX_END()
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{
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#ifdef WIN32
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if (mmx_available) __asm emms;
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#endif
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#ifdef LINUX
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if (mmx_available) __asm__ volatile ( "emms" : : );
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#endif
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}
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#endif
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//private:
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static uint8_t alphatable[256][256];
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#ifndef NO_MMX
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static int mmx_available;
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#endif
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};
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// NON MMX
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// average blend of a and b.
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unsigned int inline Blenders::BLEND_AVG(unsigned int a, unsigned int b)
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{
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return ((a >> 1)&~((1 << 7) | (1 << 15) | (1 << 23))) + ((b >> 1)&~((1 << 7) | (1 << 15) | (1 << 23)));
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}
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// multiplies 32 bit color A by scalar V (0-255)
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unsigned int inline Blenders::BLEND_MUL(unsigned int a, int v)
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{
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register int t;
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t = Blenders::alphatable[a & 0xFF][v];
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t |= Blenders::alphatable[(a & 0xFF00) >> 8][v] << 8;
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t |= Blenders::alphatable[(a & 0xFF0000) >> 16][v] << 16;
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t |= Blenders::alphatable[(a & 0xFF000000) >> 24][v] << 24;
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return t;
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}
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// V is scalar (0-255), (1.0-V)*b + V*a
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unsigned int inline Blenders::BLEND_ADJ1(unsigned int a, unsigned int b, int v)
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{
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register int t;
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t = Blenders::alphatable[b & 0xFF][0xFF - v] + Blenders::alphatable[a & 0xFF][v];
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t |= (Blenders::alphatable[(b & 0xFF00) >> 8][0xFF - v] + Blenders::alphatable[(a & 0xFF00) >> 8][v]) << 8;
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t |= (Blenders::alphatable[(b & 0xFF0000) >> 16][0xFF - v] + Blenders::alphatable[(a & 0xFF0000) >> 16][v]) << 16;
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t |= (Blenders::alphatable[(b & 0xFF000000) >> 24][0xFF - v] + Blenders::alphatable[(a & 0xFF000000) >> 24][v]) << 24;
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return t;
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}
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// returns a*(1.0-Alpha(b)) + b
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unsigned int inline Blenders::BLEND_ADJ2(unsigned int a, unsigned int b)
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{
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register int t, z;
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int v = 0xff - ((b >> 24) & 0xff);
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t = Blenders::alphatable[a & 0xFF][v] + (b & 0xFF);
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if (t > 0xFF) t = 0xff;
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z = (Blenders::alphatable[(a & 0xFF00) >> 8][v] << 8) + (b & 0xFF00);
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if (z > 0xFF00) z = 0xff00;
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t |= z;
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z = (Blenders::alphatable[(a & 0xFF0000) >> 16][v] << 16) + ((b & 0xFF0000));
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if (z > 0xFF0000) z = 0xff0000;
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t |= z;
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z = (Blenders::alphatable[(a & 0xFF000000) >> 24][v]) + ((b & 0xFF000000) >> 24);
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if (z > 0xFF) z = 0xff;
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return t | (z << 24);
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}
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// returns a*(1-Alpha(b)*W) + b*W, clamped (W is scalar 0-0xff).
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unsigned int inline Blenders::BLEND_ADJ3(unsigned int a, unsigned int b, int w)
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{
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register int t, z;
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int v = 0xff - Blenders::alphatable[(b >> 24) & 0xff][w];
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t = Blenders::alphatable[a & 0xFF][v] + Blenders::alphatable[b & 0xFF][w];
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if (t > 0xFF) t = 0xFF;
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z = Blenders::alphatable[(a & 0xFF00) >> 8][v] + Blenders::alphatable[(b & 0xFF00) >> 8][w];
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if (z > 0xFF) z = 0xFF;
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t |= z << 8;
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z = Blenders::alphatable[(a & 0xFF0000) >> 16][v] + Blenders::alphatable[(b & 0xFF0000) >> 16][w];
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if (z > 0xFF) z = 0xFF;
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t |= z << 16;
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z = Blenders::alphatable[(a & 0xFF000000) >> 24][v] + Blenders::alphatable[(b & 0xFF000000) >> 24][w];
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if (z > 0xFF) z = 0xFF;
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return t | (z << 24);
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}
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unsigned int __inline Blenders::BLEND4(unsigned int *p1, unsigned int w, int xp, int yp)
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{
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register int t;
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uint8_t a1, a2, a3, a4;
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xp = (xp >> 8) & 0xff;
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yp = (yp >> 8) & 0xff;
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a1 = alphatable[255 - xp][255 - yp];
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a2 = alphatable[xp][255 - yp];
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a3 = alphatable[255 - xp][yp];
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a4 = alphatable[xp][yp];
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t = alphatable[p1[0] & 0xff][a1] + alphatable[p1[1] & 0xff][a2] + alphatable[p1[w] & 0xff][a3] + alphatable[p1[w + 1] & 0xff][a4];
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t |= (alphatable[(p1[0] >> 8) & 0xff][a1] + alphatable[(p1[1] >> 8) & 0xff][a2] + alphatable[(p1[w] >> 8) & 0xff][a3] + alphatable[(p1[w + 1] >> 8) & 0xff][a4]) << 8;
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t |= (alphatable[(p1[0] >> 16) & 0xff][a1] + alphatable[(p1[1] >> 16) & 0xff][a2] + alphatable[(p1[w] >> 16) & 0xff][a3] + alphatable[(p1[w + 1] >> 16) & 0xff][a4]) << 16;
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t |= (alphatable[(p1[0] >> 24) & 0xff][a1] + alphatable[(p1[1] >> 24) & 0xff][a2] + alphatable[(p1[w] >> 24) & 0xff][a3] + alphatable[(p1[w + 1] >> 24) & 0xff][a4]) << 24;
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return t;
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}
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#ifndef NO_MMX
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#ifdef WIN32
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#pragma warning( push, 1 )
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#pragma warning(disable: 4799)
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#endif
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#ifdef WIN32
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#define MMX_CONST const
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#else
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#define MMX_CONST
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#endif
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static unsigned int MMX_CONST Blenders__mmx_revn2[2] = {0x01000100, 0x01000100};
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static unsigned int MMX_CONST Blenders__mmx_zero[2];
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static unsigned int MMX_CONST Blenders__mmx_one[2] = {1, 0};
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#undef MMX_CONST
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/// MMX
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// average blend of a and b.
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unsigned int inline Blenders::BLEND_AVG_MMX(unsigned int a, unsigned int b)
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{
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return ((a >> 1)&~((1 << 7) | (1 << 15) | (1 << 23))) + ((b >> 1)&~((1 << 7) | (1 << 15) | (1 << 23)));
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}
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// multiplies 32 bit color A by scalar V (0-255)
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unsigned int inline Blenders::BLEND_MUL_MMX(unsigned int a, int v)
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{
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#ifdef WIN32
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__asm
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{
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movd mm3, [v] // VVVVVVVV
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movd mm0, [a]
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packuswb mm3, mm3 // 0000HHVV
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punpcklbw mm0, [Blenders__mmx_zero]
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punpcklwd mm3, mm3 // HHVVHHVV
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punpckldq mm3, mm3 // HHVVHHVV HHVVHHVV
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pmullw mm0, mm3
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psrlw mm0, 8
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packuswb mm0, mm0
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movd eax, mm0
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}
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#else
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__asm__ volatile (
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"movd %0, %%mm3\n"
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"movd %1, %%mm0\n"
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"packuswb %%mm3, %%mm3\n"
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"punpcklbw (Blenders__mmx_zero), %%mm0\n"
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"punpcklwd %%mm3, %%mm3\n"
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"punpckldq %%mm3, %%mm3\n"
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"pmullw %%mm3, %%mm0\n"
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"psrlw $8, %%mm0\n"
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"packuswb %%mm0, %%mm0\n"
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"movd %%mm0, %%eax\n"
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:
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: "m" (v), "m" (a)
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: "%mm0", "%mm3" );
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#endif
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}
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// V is scalar (0-255), (1.0-V)*b + V*a
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unsigned int inline Blenders::BLEND_ADJ1_MMX(unsigned int a, unsigned int b, int v)
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{
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#ifdef WIN32
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__asm
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{
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movd mm3, [v] // VVVVVVVV
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movd mm0, [a]
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packuswb mm3, mm3 // 0000HHVV
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movd mm1, [b]
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paddusw mm3, [Blenders__mmx_one]
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movq mm4, [Blenders__mmx_revn2]
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punpcklwd mm3, mm3 // HHVVHHVV
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punpcklbw mm0, [Blenders__mmx_zero]
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punpckldq mm3, mm3 // HHVVHHVV HHVVHHVV
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punpcklbw mm1, [Blenders__mmx_zero]
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psubw mm4, mm3
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pmullw mm0, mm3
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pmullw mm1, mm4
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paddw mm0, mm1
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psrlw mm0, 8
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packuswb mm0, mm0
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movd eax, mm0
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}
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#else
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__asm__ volatile (
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"movd %0, %%mm3\n"
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"movd %1, %%mm0\n"
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"packuswb %%mm3, %%mm3\n"
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"movd %2, %%mm1\n"
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"paddusw (Blenders__mmx_one), %%mm3\n"
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"movq (Blenders__mmx_revn2), %%mm4\n"
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"punpcklwd %%mm3, %%mm3\n"
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"punpcklbw (Blenders__mmx_zero), %%mm0\n"
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"punpckldq %%mm3, %%mm3\n"
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"punpcklbw (Blenders__mmx_zero), %%mm1\n"
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"psubw %%mm3, %%mm4\n"
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"pmullw %%mm3, %%mm0\n"
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"pmullw %%mm4, %%mm1\n"
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"paddw %%mm1, %%mm0\n"
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"psrlw $8, %%mm0\n"
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"packuswb %%mm0, %%mm0\n"
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"movd %%mm0, %%eax\n"
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:
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: "m" (v), "m" (a), "m" (b)
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: "%mm0", "%mm1", "%mm3", "%mm4" );
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#endif
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}
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// returns a*(1.0-Alpha(b)) + b
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unsigned int inline Blenders::BLEND_ADJ2_MMX(unsigned int a, unsigned int b)
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{
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#ifdef WIN32
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__asm
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{
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movd mm3, [b] // VVVVVVVV
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movq mm4, [Blenders__mmx_revn2]
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movd mm0, [a]
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psrld mm3, 24
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movd mm1, [b]
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paddusw mm3, [Blenders__mmx_one]
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punpcklwd mm3, mm3 // HHVVHHVV
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punpcklbw mm0, [Blenders__mmx_zero]
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punpckldq mm3, mm3 // HHVVHHVV HHVVHHVV
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punpcklbw mm1, [Blenders__mmx_zero]
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psubw mm4, mm3
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pmullw mm0, mm4
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// stall
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// stall
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// stall
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psrlw mm0, 8
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// stall
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paddw mm0, mm1
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// stall
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packuswb mm0, mm0
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// stall
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movd eax, mm0
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}
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#else
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__asm__ volatile (
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"movd %1, %%mm3\n"
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"movq (Blenders__mmx_revn2), %%mm4\n"
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"movd %0, %%mm0\n"
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"psrld $24, %%mm3\n"
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"movd %1, %%mm1\n"
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"paddusw (Blenders__mmx_one), %%mm3\n"
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"punpcklwd %%mm3, %%mm3\n"
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"punpcklbw (Blenders__mmx_zero), %%mm0\n"
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"punpckldq %%mm3, %%mm3\n"
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"punpcklbw (Blenders__mmx_zero), %%mm1\n"
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"psubw %%mm3, %%mm4\n"
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"pmullw %%mm4, %%mm0\n"
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"psrlw $8, %%mm0\n"
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"paddw %%mm1, %%mm0\n"
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"packuswb %%mm0, %%mm0\n"
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"movd %%mm0, %%eax\n"
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:
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: "m" (a), "m" (b)
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: "%esi", "%mm0", "%mm1", "%mm3", "%mm4" );
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#endif
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}
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// returns a*(1-Alpha(b)*W) + b*W, clamped (W is scalar 0-0xff).
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unsigned int inline Blenders::BLEND_ADJ3_MMX(unsigned int a, unsigned int b, int w)
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{
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#ifdef WIN32
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__asm
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{
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movd mm3, [b] // VVVVVVVV
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movd mm5, [w]
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|
|
|
||
|
|
movd mm0, [a]
|
||
|
|
psrld mm3, 24
|
||
|
|
|
||
|
|
movd mm1, [b]
|
||
|
|
paddusw mm3, [Blenders__mmx_one]
|
||
|
|
|
||
|
|
movq mm4, [Blenders__mmx_revn2]
|
||
|
|
pmullw mm3, mm5
|
||
|
|
|
||
|
|
packuswb mm5, mm5
|
||
|
|
punpcklbw mm0, [Blenders__mmx_zero]
|
||
|
|
|
||
|
|
punpcklwd mm5, mm5
|
||
|
|
punpcklbw mm1, [Blenders__mmx_zero]
|
||
|
|
|
||
|
|
psrlw mm3, 8
|
||
|
|
punpckldq mm5, mm5
|
||
|
|
|
||
|
|
paddusw mm3, [Blenders__mmx_one]
|
||
|
|
|
||
|
|
punpcklwd mm3, mm3 // HHVVHHVV
|
||
|
|
|
||
|
|
punpckldq mm3, mm3 // HHVVHHVV HHVVHHVV
|
||
|
|
|
||
|
|
|
||
|
|
psubw mm4, mm3
|
||
|
|
|
||
|
|
pmullw mm0, mm4
|
||
|
|
pmullw mm1, mm5
|
||
|
|
|
||
|
|
paddusw mm0, mm1
|
||
|
|
|
||
|
|
psrlw mm0, 8
|
||
|
|
|
||
|
|
packuswb mm0, mm0
|
||
|
|
|
||
|
|
movd eax, mm0
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
__asm__ volatile (
|
||
|
|
"movd %2, %%mm3\n"
|
||
|
|
"movd %0, %%mm5\n"
|
||
|
|
"movd %1, %%mm0\n"
|
||
|
|
"psrld $24, %%mm3\n"
|
||
|
|
"movd %2, %%mm1\n"
|
||
|
|
"paddusw (Blenders__mmx_one), %%mm3\n"
|
||
|
|
"movq (Blenders__mmx_revn2), %%mm4\n"
|
||
|
|
"pmullw %%mm5, %%mm3\n"
|
||
|
|
"packuswb %%mm5, %%mm5 \n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm0\n"
|
||
|
|
"punpcklwd %%mm5, %%mm5\n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm1\n"
|
||
|
|
"psrlw $8, %%mm3\n"
|
||
|
|
"punpckldq %%mm5, %%mm5\n"
|
||
|
|
"paddusw (Blenders__mmx_one), %%mm3\n"
|
||
|
|
"punpcklwd %%mm3, %%mm3\n"
|
||
|
|
"punpckldq %%mm3, %%mm3\n"
|
||
|
|
"psubw %%mm3, %%mm4\n"
|
||
|
|
"pmullw %%mm4, %%mm0\n"
|
||
|
|
"pmullw %%mm5, %%mm1\n"
|
||
|
|
"paddusw %%mm1, %%mm0\n"
|
||
|
|
"psrlw $8, %%mm0\n"
|
||
|
|
"packuswb %%mm0, %%mm0\n"
|
||
|
|
"movd %%mm0, %%eax\n"
|
||
|
|
|
||
|
|
:
|
||
|
|
: "m" (w), "m" (a), "m" (b)
|
||
|
|
: "%mm0", "%mm1", "%mm4", "%mm3", "%mm5" );
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
// does bilinear filtering. p1 is upper left pixel, w is width of framebuffer
|
||
|
|
// xp and yp's low 16 bits are used for the subpixel positioning.
|
||
|
|
unsigned int inline Blenders::BLEND4_MMX(unsigned int *p1, unsigned int w, int xp, int yp)
|
||
|
|
{
|
||
|
|
#ifdef WIN32
|
||
|
|
__asm
|
||
|
|
{
|
||
|
|
movd mm6, xp
|
||
|
|
mov eax, p1
|
||
|
|
|
||
|
|
movd mm7, yp
|
||
|
|
mov esi, w
|
||
|
|
|
||
|
|
movq mm4, Blenders__mmx_revn2
|
||
|
|
psrlw mm6, 8
|
||
|
|
|
||
|
|
movq mm5, Blenders__mmx_revn2
|
||
|
|
psrlw mm7, 8
|
||
|
|
|
||
|
|
movd mm0, [eax]
|
||
|
|
punpcklwd mm6, mm6
|
||
|
|
|
||
|
|
movd mm1, [eax + 4]
|
||
|
|
punpcklwd mm7, mm7
|
||
|
|
|
||
|
|
movd mm2, [eax + esi*4]
|
||
|
|
punpckldq mm6, mm6
|
||
|
|
|
||
|
|
movd mm3, [eax + esi*4 + 4]
|
||
|
|
punpckldq mm7, mm7
|
||
|
|
|
||
|
|
punpcklbw mm0, [Blenders__mmx_zero]
|
||
|
|
psubw mm4, mm6
|
||
|
|
|
||
|
|
punpcklbw mm1, [Blenders__mmx_zero]
|
||
|
|
pmullw mm0, mm4
|
||
|
|
|
||
|
|
punpcklbw mm2, [Blenders__mmx_zero]
|
||
|
|
pmullw mm1, mm6
|
||
|
|
|
||
|
|
punpcklbw mm3, [Blenders__mmx_zero]
|
||
|
|
psubw mm5, mm7
|
||
|
|
|
||
|
|
pmullw mm2, mm4
|
||
|
|
pmullw mm3, mm6
|
||
|
|
|
||
|
|
paddw mm0, mm1
|
||
|
|
// stall (mm0)
|
||
|
|
|
||
|
|
psrlw mm0, 8
|
||
|
|
// stall (waiting for mm3/mm2)
|
||
|
|
|
||
|
|
paddw mm2, mm3
|
||
|
|
pmullw mm0, mm5
|
||
|
|
|
||
|
|
psrlw mm2, 8
|
||
|
|
// stall (mm2)
|
||
|
|
|
||
|
|
pmullw mm2, mm7
|
||
|
|
// stall
|
||
|
|
|
||
|
|
// stall (mm2)
|
||
|
|
|
||
|
|
paddw mm0, mm2
|
||
|
|
// stall
|
||
|
|
|
||
|
|
psrlw mm0, 8
|
||
|
|
// stall
|
||
|
|
|
||
|
|
packuswb mm0, mm0
|
||
|
|
// stall
|
||
|
|
|
||
|
|
movd eax, mm0
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
__asm__ volatile (
|
||
|
|
"movd %2, %%mm6\n"
|
||
|
|
"mov %0, %%eax\n"
|
||
|
|
"movd %3, %%mm7\n"
|
||
|
|
"mov %1, %%esi\n"
|
||
|
|
"movq (Blenders__mmx_revn2), %%mm4\n"
|
||
|
|
"psrlw $8, %%mm6\n"
|
||
|
|
"movq (Blenders__mmx_revn2), %%mm5\n"
|
||
|
|
"psrlw $8, %%mm7\n"
|
||
|
|
"movd (%%eax), %%mm0\n"
|
||
|
|
"punpcklwd %%mm6,%%mm6\n"
|
||
|
|
"movd 4(%%eax), %%mm1\n"
|
||
|
|
"punpcklwd %%mm7,%%mm7\n"
|
||
|
|
"movd (%%eax,%%esi,4), %%mm2\n"
|
||
|
|
"punpckldq %%mm6,%%mm6\n"
|
||
|
|
"movd 4(%%eax,%%esi,4), %%mm3\n"
|
||
|
|
"punpckldq %%mm7,%%mm7\n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm0\n"
|
||
|
|
"psubw %%mm6, %%mm4\n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm1\n"
|
||
|
|
"pmullw %%mm4, %%mm0\n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm2\n"
|
||
|
|
"pmullw %%mm6, %%mm1\n"
|
||
|
|
"punpcklbw (Blenders__mmx_zero), %%mm3\n"
|
||
|
|
"psubw %%mm7, %%mm5\n"
|
||
|
|
"pmullw %%mm4, %%mm2\n"
|
||
|
|
"pmullw %%mm6, %%mm3\n"
|
||
|
|
"paddw %%mm1, %%mm0\n"
|
||
|
|
"psrlw $8, %%mm0\n"
|
||
|
|
"paddw %%mm3, %%mm2\n"
|
||
|
|
"pmullw %%mm5, %%mm0\n"
|
||
|
|
"psrlw $8, %%mm2\n"
|
||
|
|
"pmullw %%mm7, %%mm2\n"
|
||
|
|
"paddw %%mm2, %%mm0\n"
|
||
|
|
"psrlw $8, %%mm0\n"
|
||
|
|
"packuswb %%mm0, %%mm0\n"
|
||
|
|
"movd %%mm0, %%eax\n"
|
||
|
|
|
||
|
|
:
|
||
|
|
: "m" (p1), "m" (w), "m" (xp), "m" (yp)
|
||
|
|
: "%mm0", "%mm1", "%mm4", "%mm3", "%mm5" );
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef WIN32
|
||
|
|
#pragma warning( pop )
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // ndef NO_MMX
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|