mirror of
https://github.com/Ryujinx/SDL.git
synced 2024-12-23 17:25:27 +00:00
Fix bug 4053: Blit issues on Big Endian CPU
This commit is contained in:
Sylvain Becker
parent
ea4c4cfc28
commit
e9a7b6973a
|
|
@ -2155,7 +2155,13 @@ get_permutation(SDL_PixelFormat *srcfmt, SDL_PixelFormat *dstfmt,
|
|||
int *_p0 , int *_p1, int *_p2, int *_p3, int *_alpha_channel)
|
||||
{
|
||||
int alpha_channel = 0, p0, p1, p2, p3;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
int Pixel = 0x04030201; /* identity permutation */
|
||||
#else
|
||||
int Pixel = 0x01020304; /* identity permutation */
|
||||
int srcbpp = srcfmt->BytesPerPixel;
|
||||
int dstbpp = dstfmt->BytesPerPixel;
|
||||
#endif
|
||||
|
||||
if (srcfmt->Amask) {
|
||||
RGBA_FROM_PIXEL(Pixel, srcfmt, p0, p1, p2, p3);
|
||||
|
|
@ -2174,10 +2180,17 @@ get_permutation(SDL_PixelFormat *srcfmt, SDL_PixelFormat *dstfmt,
|
|||
PIXEL_FROM_RGB(Pixel, dstfmt, p0, p1, p2);
|
||||
}
|
||||
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
p0 = Pixel & 0xFF;
|
||||
p1 = (Pixel >> 8) & 0xFF;
|
||||
p2 = (Pixel >> 16) & 0xFF;
|
||||
p3 = (Pixel >> 24) & 0xFF;
|
||||
#else
|
||||
p3 = Pixel & 0xFF;
|
||||
p2 = (Pixel >> 8) & 0xFF;
|
||||
p1 = (Pixel >> 16) & 0xFF;
|
||||
p0 = (Pixel >> 24) & 0xFF;
|
||||
#endif
|
||||
|
||||
if (p0 == 0) {
|
||||
p0 = 1;
|
||||
|
|
@ -2193,6 +2206,19 @@ get_permutation(SDL_PixelFormat *srcfmt, SDL_PixelFormat *dstfmt,
|
|||
alpha_channel = 3;
|
||||
}
|
||||
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
#else
|
||||
if (srcbpp == 3 && dstbpp == 4) {
|
||||
if (p0 != 1) p0--;
|
||||
if (p1 != 1) p1--;
|
||||
if (p2 != 1) p2--;
|
||||
if (p3 != 1) p3--;
|
||||
} else if (srcbpp == 4 && dstbpp == 3) {
|
||||
p0 = p1;
|
||||
p1 = p2;
|
||||
p2 = p3;
|
||||
}
|
||||
#endif
|
||||
*_p0 = p0 - 1;
|
||||
*_p1 = p1 - 1;
|
||||
*_p2 = p2 - 1;
|
||||
|
|
@ -2597,9 +2623,15 @@ BlitNtoNKey(SDL_BlitInfo * info)
|
|||
if ((sfmt == SDL_PIXELFORMAT_RGB24 && dfmt == SDL_PIXELFORMAT_RGB24) ||
|
||||
(sfmt == SDL_PIXELFORMAT_BGR24 && dfmt == SDL_PIXELFORMAT_BGR24)) {
|
||||
|
||||
Uint8 k0 = ckey & 0x000000FF;
|
||||
Uint8 k1 = (ckey & 0x0000FF00) >> 8;
|
||||
Uint8 k2 = (ckey & 0x00FF0000) >> 16;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint8 k0 = ckey & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = (ckey >> 16) & 0xFF;
|
||||
#else
|
||||
Uint8 k0 = (ckey >> 16) & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = ckey & 0xFF;
|
||||
#endif
|
||||
|
||||
while (height--) {
|
||||
/* *INDENT-OFF* */
|
||||
|
|
@ -2629,9 +2661,15 @@ BlitNtoNKey(SDL_BlitInfo * info)
|
|||
if ((sfmt == SDL_PIXELFORMAT_RGB24 && dfmt == SDL_PIXELFORMAT_BGR24) ||
|
||||
(sfmt == SDL_PIXELFORMAT_BGR24 && dfmt == SDL_PIXELFORMAT_RGB24)) {
|
||||
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint8 k0 = ckey & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = (ckey >> 16) & 0xFF;
|
||||
#else
|
||||
Uint8 k0 = (ckey >> 16) & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = ckey & 0xFF;
|
||||
#endif
|
||||
|
||||
while (height--) {
|
||||
/* *INDENT-OFF* */
|
||||
|
|
@ -2693,9 +2731,15 @@ BlitNtoNKey(SDL_BlitInfo * info)
|
|||
|
||||
Uint32 *dst32 = (Uint32*)dst;
|
||||
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint8 k0 = ckey & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = (ckey >> 16) & 0xFF;
|
||||
#else
|
||||
Uint8 k0 = (ckey >> 16) & 0xFF;
|
||||
Uint8 k1 = (ckey >> 8) & 0xFF;
|
||||
Uint8 k2 = ckey & 0xFF;
|
||||
#endif
|
||||
|
||||
/* Find the appropriate permutation */
|
||||
int alpha_channel, p0, p1, p2, p3;
|
||||
|
|
@ -2939,6 +2983,13 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
/* SET_ALPHA */
|
||||
Uint32 mask = info->a << dstfmt->Ashift;
|
||||
int last_line = 0;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
#else
|
||||
int i0 = srcbpp - 1 - 0;
|
||||
int i1 = srcbpp - 1 - 1;
|
||||
int i2 = srcbpp - 1 - 2;
|
||||
#endif
|
||||
|
||||
if (srcbpp == 3 && height) {
|
||||
height -= 1;
|
||||
last_line = 1;
|
||||
|
|
@ -2949,8 +3000,15 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
DUFFS_LOOP(
|
||||
{
|
||||
Uint32 *dst32 = (Uint32*)dst;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint32 *src32 = (Uint32*)src;
|
||||
*dst32 = *src32 | mask;
|
||||
#else
|
||||
Uint8 s0 = src[i0];
|
||||
Uint8 s1 = src[i1];
|
||||
Uint8 s2 = src[i2];
|
||||
*dst32 = (s0) | (s1 << 8) | (s2 << 16) | mask;
|
||||
#endif
|
||||
dst += 4;
|
||||
src += srcbpp;
|
||||
}, width);
|
||||
|
|
@ -2962,9 +3020,15 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
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;
|
||||
|
|
@ -2972,8 +3036,28 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
}
|
||||
} else {
|
||||
/* NO_ALPHA */
|
||||
int mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
|
||||
int last_line = 0;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
int mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
|
||||
#else
|
||||
int i0 = srcbpp - 1 - 0;
|
||||
int i1 = srcbpp - 1 - 1;
|
||||
int i2 = srcbpp - 1 - 2;
|
||||
int j0 = dstbpp - 1 - 0;
|
||||
int j1 = dstbpp - 1 - 1;
|
||||
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
|
||||
|
||||
if ((dstbpp == 3 || srcbpp == 3) && height) {
|
||||
height -= 1;
|
||||
last_line = 1;
|
||||
|
|
@ -2984,8 +3068,15 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
DUFFS_LOOP(
|
||||
{
|
||||
Uint32 *dst32 = (Uint32*)dst;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint32 *src32 = (Uint32*)src;
|
||||
*dst32 = *src32 & mask;
|
||||
#else
|
||||
Uint8 s0 = src[i0];
|
||||
Uint8 s1 = src[i1];
|
||||
Uint8 s2 = src[i2];
|
||||
*dst32 = (s0 << shift0) | (s1 << shift1) | (s2 << shift2);
|
||||
#endif
|
||||
dst += dstbpp;
|
||||
src += srcbpp;
|
||||
}, width);
|
||||
|
|
@ -2996,12 +3087,21 @@ Blit_3or4_to_3or4__same_rgb(SDL_BlitInfo * info)
|
|||
|
||||
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 s1 = src[i1];
|
||||
Uint8 s2 = src[i2];
|
||||
dst[j0] = s0;
|
||||
dst[j1] = s1;
|
||||
dst[j2] = s2;
|
||||
#endif
|
||||
dst += dstbpp;
|
||||
src += srcbpp;
|
||||
}
|
||||
|
|
@ -3034,10 +3134,17 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
DUFFS_LOOP(
|
||||
{
|
||||
Uint32 *dst32 = (Uint32*)dst;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint8 s0 = src[0];
|
||||
Uint8 s1 = src[1];
|
||||
Uint8 s2 = src[2];
|
||||
Uint32 alphashift = src[3] << dstfmt->Ashift;
|
||||
#else
|
||||
Uint8 s0 = src[3];
|
||||
Uint8 s1 = src[2];
|
||||
Uint8 s2 = src[1];
|
||||
Uint32 alphashift = src[0] << dstfmt->Ashift;
|
||||
#endif
|
||||
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */
|
||||
*dst32 = (s0 << 16) | (s1 << 8) | (s2) | alphashift;
|
||||
dst += dstbpp;
|
||||
|
|
@ -3050,14 +3157,27 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
} else {
|
||||
/* SET_ALPHA */
|
||||
Uint32 mask = info->a << dstfmt->Ashift;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
#else
|
||||
int i0 = srcbpp - 1 - 0;
|
||||
int i1 = srcbpp - 1 - 1;
|
||||
int i2 = srcbpp - 1 - 2;
|
||||
#endif
|
||||
|
||||
while (height--) {
|
||||
/* *INDENT-OFF* */
|
||||
DUFFS_LOOP(
|
||||
{
|
||||
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
|
||||
/* inversed, compared to Blit_3or4_to_3or4__same_rgb */
|
||||
*dst32 = (s0 << 16) | (s1 << 8) | (s2) | mask;
|
||||
dst += dstbpp;
|
||||
|
|
@ -3071,6 +3191,23 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
} else {
|
||||
/* NO_ALPHA */
|
||||
int last_line = 0;
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
#else
|
||||
int i0 = srcbpp - 1 - 0;
|
||||
int i1 = srcbpp - 1 - 1;
|
||||
int i2 = srcbpp - 1 - 2;
|
||||
int shift0, shift1, shift2;
|
||||
if (dstbpp == 4) {
|
||||
shift0 = 16;
|
||||
shift1 = 8;
|
||||
shift2 = 0;
|
||||
} else { /* dstbpp 3 */
|
||||
shift0 = 24;
|
||||
shift1 = 16;
|
||||
shift2 = 8;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (dstbpp == 3 && height) {
|
||||
height -= 1;
|
||||
last_line = 1;
|
||||
|
|
@ -3081,11 +3218,18 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
DUFFS_LOOP(
|
||||
{
|
||||
Uint32 *dst32 = (Uint32*)dst;
|
||||
#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 */
|
||||
*dst32 = (s0 << 16) | (s1 << 8) | (s2);
|
||||
#else
|
||||
Uint8 s0 = src[i0];
|
||||
Uint8 s1 = src[i1];
|
||||
Uint8 s2 = src[i2];
|
||||
*dst32 = (s0 << shift0) | (s1 << shift1) | (s2 << shift2);
|
||||
#endif
|
||||
dst += dstbpp;
|
||||
src += srcbpp;
|
||||
}, width);
|
||||
|
|
@ -3096,6 +3240,7 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
|
||||
if (last_line) {
|
||||
while (width--) {
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
Uint8 s0 = src[0];
|
||||
Uint8 s1 = src[1];
|
||||
Uint8 s2 = src[2];
|
||||
|
|
@ -3103,6 +3248,15 @@ Blit_3or4_to_3or4__inversed_rgb(SDL_BlitInfo * info)
|
|||
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;
|
||||
}
|
||||
|
|
@ -3151,7 +3305,6 @@ static const struct blit_table normal_blit_2[] = {
|
|||
};
|
||||
|
||||
static const struct blit_table normal_blit_3[] = {
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
/* 3->4 with same rgb triplet */
|
||||
{0x000000FF, 0x0000FF00, 0x00FF0000, 4, 0x000000FF, 0x0000FF00, 0x00FF0000,
|
||||
0, Blit_3or4_to_3or4__same_rgb, NO_ALPHA | SET_ALPHA},
|
||||
|
|
@ -3167,7 +3320,6 @@ static const struct blit_table normal_blit_3[] = {
|
|||
0, Blit_3or4_to_3or4__inversed_rgb, NO_ALPHA },
|
||||
{0x00FF0000, 0x0000FF00, 0x000000FF, 3, 0x000000FF, 0x0000FF00, 0x00FF0000,
|
||||
0, Blit_3or4_to_3or4__inversed_rgb, NO_ALPHA },
|
||||
#endif
|
||||
/* Default for 24-bit RGB source, never optimized */
|
||||
{0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
|
||||
};
|
||||
|
|
@ -3184,7 +3336,6 @@ static const struct blit_table normal_blit_4[] = {
|
|||
{0x00000000, 0x00000000, 0x00000000, 2, 0x0000F800, 0x000007E0, 0x0000001F,
|
||||
2, Blit_RGB888_RGB565Altivec, NO_ALPHA},
|
||||
#endif
|
||||
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
||||
/* 4->3 with same rgb triplet */
|
||||
{0x000000FF, 0x0000FF00, 0x00FF0000, 3, 0x000000FF, 0x0000FF00, 0x00FF0000,
|
||||
0, Blit_3or4_to_3or4__same_rgb, NO_ALPHA | SET_ALPHA},
|
||||
|
|
@ -3195,7 +3346,6 @@ static const struct blit_table normal_blit_4[] = {
|
|||
0, Blit_3or4_to_3or4__inversed_rgb, NO_ALPHA | SET_ALPHA},
|
||||
{0x00FF0000, 0x0000FF00, 0x000000FF, 3, 0x000000FF, 0x0000FF00, 0x00FF0000,
|
||||
0, Blit_3or4_to_3or4__inversed_rgb, NO_ALPHA | SET_ALPHA},
|
||||
#endif
|
||||
/* 4->4 with inversed rgb triplet, and COPY_ALPHA to switch ABGR8888 <-> ARGB8888 */
|
||||
{0x000000FF, 0x0000FF00, 0x00FF0000, 4, 0x00FF0000, 0x0000FF00, 0x000000FF,
|
||||
0, Blit_3or4_to_3or4__inversed_rgb, NO_ALPHA | SET_ALPHA | COPY_ALPHA},
|
||||
|
|
|
|||
Loading…
Reference in a new issue