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BlitNtoN BlitNtoNKey: remove non-aligned word read/store (bpp 3<->4) (Bug 4503) 

Mips and (old) ARM doesn't allow word read/write when adress isn't 4bytes
aligned. So just remove that.
Sylvain Becker 2019-02-22 09:30:45 +01:00
parent 6fbe9e23fa
commit 47fb781b94
1 changed files with 79 additions and 230 deletions
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309
src/video/SDL_blit_N.c
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@ -2251,9 +2251,6 @@ BlitNtoN(SDL_BlitInfo * info)
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 && srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int alpha_channel, p0, p1, p2, p3; int alpha_channel, p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel);
@ -2262,19 +2259,17 @@ BlitNtoN(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
Uint8 *d8 = (Uint8 *)dst32; dst[1] = src[p1];
d8[0] = s8[p0]; dst[2] = src[p2];
d8[1] = s8[p1]; dst[3] = src[p3];
d8[2] = s8[p2]; dst[alpha_channel] = alpha;
d8[3] = s8[p3]; src += 4;
d8[alpha_channel] = alpha; dst += 4;
++src32;
++dst32;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2283,8 +2278,6 @@ BlitNtoN(SDL_BlitInfo * info)
if (srcbpp == 4 && dstbpp == 3 && if (srcbpp == 4 && dstbpp == 3 &&
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010) { srcfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int p0, p1, p2, p3; int p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL);
@ -2293,15 +2286,14 @@ BlitNtoN(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
dst[0] = s8[p0]; dst[1] = src[p1];
dst[1] = s8[p1]; dst[2] = src[p2];
dst[2] = s8[p2]; src += 4;
++src32;
dst += 3; dst += 3;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst += dstskip; dst += dstskip;
} }
return; return;
@ -2311,8 +2303,6 @@ BlitNtoN(SDL_BlitInfo * info)
if (srcbpp == 3 && dstbpp == 4 && if (srcbpp == 3 && dstbpp == 4 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *dst32 = (Uint32*)dst;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int alpha_channel, p0, p1, p2, p3; int alpha_channel, p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel);
@ -2321,18 +2311,17 @@ BlitNtoN(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint8 *d8 = (Uint8 *)dst32; dst[0] = src[p0];
d8[0] = src[p0]; dst[1] = src[p1];
d8[1] = src[p1]; dst[2] = src[p2];
d8[2] = src[p2]; dst[3] = src[p3];
d8[3] = src[p3]; dst[alpha_channel] = alpha;
d8[alpha_channel] = alpha;
src += 3; src += 3;
++dst32; dst += 4;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src += srcskip; src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2377,9 +2366,6 @@ BlitNtoNCopyAlpha(SDL_BlitInfo * info)
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 && srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int p0, p1, p2, p3; int p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL);
@ -2388,18 +2374,16 @@ BlitNtoNCopyAlpha(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
Uint8 *d8 = (Uint8 *)dst32; dst[1] = src[p1];
d8[0] = s8[p0]; dst[2] = src[p2];
d8[1] = s8[p1]; dst[3] = src[p3];
d8[2] = s8[p2]; src += 4;
d8[3] = s8[p3]; dst += 4;
++src32;
++dst32;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2589,9 +2573,6 @@ BlitNtoNKey(SDL_BlitInfo * info)
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 && srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int alpha_channel, p0, p1, p2, p3; int alpha_channel, p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, &alpha_channel);
@ -2600,21 +2581,21 @@ BlitNtoNKey(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *src32 = (Uint32*)src;
if ((*src32 & rgbmask) != ckey) { if ((*src32 & rgbmask) != ckey) {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
Uint8 *d8 = (Uint8 *)dst32; dst[1] = src[p1];
d8[0] = s8[p0]; dst[2] = src[p2];
d8[1] = s8[p1]; dst[3] = src[p3];
d8[2] = s8[p2]; dst[alpha_channel] = alpha;
d8[3] = s8[p3];
d8[alpha_channel] = alpha;
} }
++src32; src += 4;
++dst32; dst += 4;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2699,8 +2680,6 @@ BlitNtoNKey(SDL_BlitInfo * info)
if (srcbpp == 4 && dstbpp == 3 && if (srcbpp == 4 && dstbpp == 3 &&
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010) { srcfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int p0, p1, p2, p3; int p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL);
@ -2709,17 +2688,17 @@ BlitNtoNKey(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *src32 = (Uint32*)src;
if ((*src32 & rgbmask) != ckey) { if ((*src32 & rgbmask) != ckey) {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
dst[0] = s8[p0]; dst[1] = src[p1];
dst[1] = s8[p1]; dst[2] = src[p2];
dst[2] = s8[p2];
} }
++src32; src += 4;
dst += 3; dst += 3;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst += dstskip; dst += dstskip;
} }
return; return;
@ -2729,8 +2708,6 @@ BlitNtoNKey(SDL_BlitInfo * info)
if (srcbpp == 3 && dstbpp == 4 && if (srcbpp == 3 && dstbpp == 4 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *dst32 = (Uint32*)dst;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN #if SDL_BYTEORDER == SDL_LIL_ENDIAN
Uint8 k0 = ckey & 0xFF; Uint8 k0 = ckey & 0xFF;
Uint8 k1 = (ckey >> 8) & 0xFF; Uint8 k1 = (ckey >> 8) & 0xFF;
@ -2754,20 +2731,18 @@ BlitNtoNKey(SDL_BlitInfo * info)
Uint8 s2 = src[2]; Uint8 s2 = src[2];
if (k0 != s0 || k1 != s1 || k2 != s2) { if (k0 != s0 || k1 != s1 || k2 != s2) {
Uint8 *d8 = (Uint8 *)dst32; dst[0] = src[p0];
d8[0] = src[p0]; dst[1] = src[p1];
d8[1] = src[p1]; dst[2] = src[p2];
d8[2] = src[p2]; dst[3] = src[p3];
d8[3] = src[p3]; dst[alpha_channel] = alpha;
d8[alpha_channel] = alpha;
} }
src += 3; src += 3;
++dst32; dst += 4;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src += srcskip; src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2853,9 +2828,6 @@ BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info)
srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 && srcfmt->format != SDL_PIXELFORMAT_ARGB2101010 &&
dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) { dstfmt->format != SDL_PIXELFORMAT_ARGB2101010) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
/* Find the appropriate permutation */ /* Find the appropriate permutation */
int p0, p1, p2, p3; int p0, p1, p2, p3;
get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL); get_permutation(srcfmt, dstfmt, &p0, &p1, &p2, &p3, NULL);
@ -2864,20 +2836,19 @@ BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *src32 = (Uint32*)src;
if ((*src32 & rgbmask) != ckey) { if ((*src32 & rgbmask) != ckey) {
Uint8 *s8 = (Uint8 *)src32; dst[0] = src[p0];
Uint8 *d8 = (Uint8 *)dst32; dst[1] = src[p1];
d8[0] = s8[p0]; dst[2] = src[p2];
d8[1] = s8[p1]; dst[3] = src[p3];
d8[2] = s8[p2];
d8[3] = s8[p3];
} }
++src32; src += 4;
++dst32; dst += 4;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src32 = (Uint32 *)((Uint8 *)src32 + srcskip); src += srcskip;
dst32 = (Uint32 *)((Uint8 *)dst32 + dstskip); dst += dstskip;
} }
return; return;
} }
@ -2982,31 +2953,15 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
if (dstfmt->Amask) { if (dstfmt->Amask) {
/* SET_ALPHA */ /* SET_ALPHA */
Uint32 mask = info->a << dstfmt->Ashift; Uint32 mask = info->a << dstfmt->Ashift;
int last_line = 0;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN #if SDL_BYTEORDER == SDL_LIL_ENDIAN
int i0 = 0, i1 = 1, i2 = 2;
#else #else
int i0 = srcbpp - 1 - 0; int i0 = srcbpp - 1 - 0;
int i1 = srcbpp - 1 - 1; int i1 = srcbpp - 1 - 1;
int i2 = srcbpp - 1 - 2; int i2 = srcbpp - 1 - 2;
#endif #endif
if (srcbpp == 3 && height) {
height -= 1;
last_line = 1;
}
while (height--) { while (height--) {
/* *INDENT-OFF* */ /* *INDENT-OFF* */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
DUFFS_LOOP(
{
Uint32 *dst32 = (Uint32*)dst;
Uint32 *src32 = (Uint32*)src;
*dst32 = *src32 | mask;
dst += 4;
src += srcbpp;
}, width);
#else
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *dst32 = (Uint32*)dst; Uint32 *dst32 = (Uint32*)dst;
@ -3017,34 +2972,15 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
dst += 4; dst += 4;
src += srcbpp; src += srcbpp;
}, width); }, width);
#endif
/* *INDENT-ON* */ /* *INDENT-ON* */
src += srcskip; src += srcskip;
dst += dstskip; dst += dstskip;
} }
if (last_line) {
while (width--) {
Uint32 *dst32 = (Uint32*)dst;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
Uint8 s0 = src[0];
Uint8 s1 = src[1];
Uint8 s2 = src[2];
#else
Uint8 s0 = src[i0];
Uint8 s1 = src[i1];
Uint8 s2 = src[i2];
#endif
*dst32 = (s0) | (s1 << 8) | (s2 << 16) | mask;
dst += 4;
src += srcbpp;
}
}
} else { } else {
/* NO_ALPHA */ /* NO_ALPHA */
int last_line = 0;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN #if SDL_BYTEORDER == SDL_LIL_ENDIAN
int mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; int i0 = 0, i1 = 1, i2 = 2;
int j0 = 0, j1 = 1, j2 = 2;
#else #else
int i0 = srcbpp - 1 - 0; int i0 = srcbpp - 1 - 0;
int i1 = srcbpp - 1 - 1; int i1 = srcbpp - 1 - 1;
@ -3052,72 +2988,23 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
int j0 = dstbpp - 1 - 0; int j0 = dstbpp - 1 - 0;
int j1 = dstbpp - 1 - 1; int j1 = dstbpp - 1 - 1;
int j2 = dstbpp - 1 - 2; int j2 = dstbpp - 1 - 2;
int shift0, shift1, shift2;
if (dstbpp == 4) {
shift2 = 16;
shift1 = 8;
shift0 = 0;
} else { /* dstbpp 3 */
shift2 = 24;
shift1 = 16;
shift0 = 8;
}
#endif #endif
if ((dstbpp == 3 || srcbpp == 3) && height) {
height -= 1;
last_line = 1;
}
while (height--) { while (height--) {
/* *INDENT-OFF* */ /* *INDENT-OFF* */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *dst32 = (Uint32*)dst;
Uint32 *src32 = (Uint32*)src;
*dst32 = *src32 & mask;
dst += dstbpp;
src += srcbpp;
}, width);
#else
DUFFS_LOOP(
{
Uint32 *dst32 = (Uint32*)dst;
Uint8 s0 = src[i0];
Uint8 s1 = src[i1];
Uint8 s2 = src[i2];
*dst32 = (s0 << shift0) | (s1 << shift1) | (s2 << shift2);
dst += dstbpp;
src += srcbpp;
}, width);
#endif
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
if (last_line) {
while (width--) {
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
Uint8 s0 = src[0];
Uint8 s1 = src[1];
Uint8 s2 = src[2];
dst[0] = s0;
dst[1] = s1;
dst[2] = s2;
#else
Uint8 s0 = src[i0]; Uint8 s0 = src[i0];
Uint8 s1 = src[i1]; Uint8 s1 = src[i1];
Uint8 s2 = src[i2]; Uint8 s2 = src[i2];
dst[j0] = s0; dst[j0] = s0;
dst[j1] = s1; dst[j1] = s1;
dst[j2] = s2; dst[j2] = s2;
#endif
dst += dstbpp; dst += dstbpp;
src += srcbpp; src += srcbpp;
} }, width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
} }
} }
return; return;
@ -3158,8 +3045,8 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
Uint32 alphashift = src[i3] << dstfmt->Ashift; Uint32 alphashift = src[i3] << dstfmt->Ashift;
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */ /* inversed, compared to Blit_3or4_to_3or4__same_rgb */
*dst32 = (s0 << 16) | (s1 << 8) | (s2) | alphashift; *dst32 = (s0 << 16) | (s1 << 8) | (s2) | alphashift;
dst += dstbpp; dst += 4;
src += srcbpp; src += 4;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
src += srcskip; src += srcskip;
@ -3175,7 +3062,6 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
int i1 = srcbpp - 1 - 1; int i1 = srcbpp - 1 - 1;
int i2 = srcbpp - 1 - 2; int i2 = srcbpp - 1 - 2;
#endif #endif
while (height--) { while (height--) {
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
@ -3186,7 +3072,7 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
Uint8 s2 = src[i2]; Uint8 s2 = src[i2];
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */ /* inversed, compared to Blit_3or4_to_3or4__same_rgb */
*dst32 = (s0 << 16) | (s1 << 8) | (s2) | mask; *dst32 = (s0 << 16) | (s1 << 8) | (s2) | mask;
dst += dstbpp; dst += 4;
src += srcbpp; src += srcbpp;
}, width); }, width);
/* *INDENT-ON* */ /* *INDENT-ON* */
@ -3196,41 +3082,28 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
} }
} else { } else {
/* NO_ALPHA */ /* NO_ALPHA */
int last_line = 0;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN #if SDL_BYTEORDER == SDL_LIL_ENDIAN
int i0 = 0, i1 = 1, i2 = 2; int i0 = 0, i1 = 1, i2 = 2;
int shift0 = 16, shift1 = 8, shift2 = 0; int j0 = 2, j1 = 1, j2 = 0;
#else #else
int i0 = srcbpp - 1 - 0; int i0 = srcbpp - 1 - 0;
int i1 = srcbpp - 1 - 1; int i1 = srcbpp - 1 - 1;
int i2 = srcbpp - 1 - 2; int i2 = srcbpp - 1 - 2;
int shift0, shift1, shift2; int j0 = dstbpp - 1 - 2;
if (dstbpp == 4) { int j1 = dstbpp - 1 - 1;
shift0 = 16; int j2 = dstbpp - 1 - 0;
shift1 = 8;
shift2 = 0;
} else { /* dstbpp 3 */
shift0 = 24;
shift1 = 16;
shift2 = 8;
}
#endif #endif
if (dstbpp == 3 && height) {
height -= 1;
last_line = 1;
}
while (height--) { while (height--) {
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 *dst32 = (Uint32*)dst;
Uint8 s0 = src[i0]; Uint8 s0 = src[i0];
Uint8 s1 = src[i1]; Uint8 s1 = src[i1];
Uint8 s2 = src[i2]; Uint8 s2 = src[i2];
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */ /* inversed, compared to Blit_3or4_to_3or4__same_rgb */
*dst32 = (s0 << shift0) | (s1 << shift1) | (s2 << shift2); dst[j0] = s0;
dst[j1] = s1;
dst[j2] = s2;
dst += dstbpp; dst += dstbpp;
src += srcbpp; src += srcbpp;
}, width); }, width);
@ -3238,30 +3111,6 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
src += srcskip; src += srcskip;
dst += dstskip; dst += dstskip;
} }
if (last_line) {
while (width--) {
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
Uint8 s0 = src[0];
Uint8 s1 = src[1];
Uint8 s2 = src[2];
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */
dst[0] = s2;
dst[1] = s1;
dst[2] = s0;
#else
Uint8 s0 = src[i0];
Uint8 s1 = src[i1];
Uint8 s2 = src[i2];
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */
dst[0] = s0;
dst[1] = s1;
dst[2] = s2;
#endif
dst += dstbpp;
src += srcbpp;
}
}
} }
return; return;
} }