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SDL/src/video/SDL_blit_N.c

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Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/*
Simple DirectMedia Layer
Updated copyright for 2019
2019-01-05 06:01:14 +00:00
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../SDL_internal.h"
#include "SDL_video.h"
#include "SDL_endian.h"
#include "SDL_cpuinfo.h"
#include "SDL_blit.h"
#include "SDL_assert.h"
/* Functions to blit from N-bit surfaces to other surfaces */
#if SDL_ALTIVEC_BLITTERS
#ifdef HAVE_ALTIVEC_H
#include <altivec.h>
#endif
#ifdef __MACOSX__
#include <sys/sysctl.h>
static size_t
GetL3CacheSize(void)
{
const char key[] = "hw.l3cachesize";
u_int64_t result = 0;
size_t typeSize = sizeof(result);
int err = sysctlbyname(key, &result, &typeSize, NULL, 0);
if (0 != err)
return 0;
return result;
}
#else
static size_t
GetL3CacheSize(void)
{
/* XXX: Just guess G4 */
return 2097152;
}
#endif /* __MACOSX__ */
#if (defined(__MACOSX__) && (__GNUC__ < 4))
#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
(vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
(vector unsigned short) ( a,b,c,d,e,f,g,h )
#else
#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
(vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
(vector unsigned short) { a,b,c,d,e,f,g,h }
#endif
#define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
#define VSWIZZLE32(a,b,c,d) (vector unsigned char) \
( 0x00+a, 0x00+b, 0x00+c, 0x00+d, \
0x04+a, 0x04+b, 0x04+c, 0x04+d, \
0x08+a, 0x08+b, 0x08+c, 0x08+d, \
0x0C+a, 0x0C+b, 0x0C+c, 0x0C+d )
#define MAKE8888(dstfmt, r, g, b, a) \
( ((r<<dstfmt->Rshift)&dstfmt->Rmask) | \
((g<<dstfmt->Gshift)&dstfmt->Gmask) | \
((b<<dstfmt->Bshift)&dstfmt->Bmask) | \
((a<<dstfmt->Ashift)&dstfmt->Amask) )
/*
* Data Stream Touch...Altivec cache prefetching.
*
* Don't use this on a G5...however, the speed boost is very significant
* on a G4.
*/
#define DST_CHAN_SRC 1
#define DST_CHAN_DEST 2
/* macro to set DST control word value... */
#define DST_CTRL(size, count, stride) \
(((size) << 24) | ((count) << 16) | (stride))
#define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
? vec_lvsl(0, src) \
: vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
/* Calculate the permute vector used for 32->32 swizzling */
static vector unsigned char
calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt)
{
/*
* We have to assume that the bits that aren't used by other
* colors is alpha, and it's one complete byte, since some formats
* leave alpha with a zero mask, but we should still swizzle the bits.
*/
/* ARGB */
const static const struct SDL_PixelFormat default_pixel_format = {
0, NULL, 0, 0,
{0, 0},
0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
0, 0, 0, 0,
16, 8, 0, 24,
0, NULL
};
const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
0x04, 0x04, 0x04, 0x04,
0x08, 0x08, 0x08, 0x08,
0x0C, 0x0C, 0x0C,
0x0C);
vector unsigned char vswiz;
vector unsigned int srcvec;
Fixed NULL pointer dereference, thanks Ozkan Sezer
2016-10-23 00:53:03 +00:00
Uint32 rmask, gmask, bmask, amask;
Fixed bug 3466 - Can't build 2.0.5 on ppc64 /home/fedora/SDL2-2.0.5/src/video/SDL_blit_N.c: In function 'calc_swizzle32': /home/fedora/SDL2-2.0.5/src/video/SDL_blit_N.c:127:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement] const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00, ^
2016-10-22 18:01:55 +00:00
if (!srcfmt) {
srcfmt = &default_pixel_format;
}
if (!dstfmt) {
dstfmt = &default_pixel_format;
}
Fixed NULL pointer dereference, thanks Ozkan Sezer
2016-10-23 00:53:03 +00:00
#define RESHIFT(X) (3 - ((X) >> 3))
rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* Use zero for alpha if either surface doesn't have alpha */
if (dstfmt->Amask) {
amask =
((srcfmt->Amask) ? RESHIFT(srcfmt->
Ashift) : 0x10) << (dstfmt->Ashift);
} else {
amask =
0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^
0xFFFFFFFF);
}
#undef RESHIFT
Fixed NULL pointer dereference, thanks Ozkan Sezer
2016-10-23 00:53:03 +00:00
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask);
vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0));
return (vswiz);
}
static void Blit_RGB888_RGB565(SDL_BlitInfo * info);
static void
Blit_RGB888_RGB565Altivec(SDL_BlitInfo * info)
{
int height = info->dst_h;
Uint8 *src = (Uint8 *) info->src;
int srcskip = info->src_skip;
Uint8 *dst = (Uint8 *) info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
vector unsigned char valpha = vec_splat_u8(0);
vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06,
0x00, 0x0a, 0x00, 0x0e,
0x00, 0x12, 0x00, 0x16,
0x00, 0x1a, 0x00, 0x1e);
vector unsigned short v1 = vec_splat_u16(1);
vector unsigned short v3 = vec_splat_u16(3);
vector unsigned short v3f =
VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f,
0x003f, 0x003f, 0x003f, 0x003f);
vector unsigned short vfc =
VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc,
0x00fc, 0x00fc, 0x00fc, 0x00fc);
vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7);
vf800 = vec_sl(vf800, vec_splat_u16(8));
while (height--) {
vector unsigned char valigner;
vector unsigned char voverflow;
vector unsigned char vsrc;
int width = info->dst_w;
int extrawidth;
/* do scalar until we can align... */
#define ONE_PIXEL_BLEND(condition, widthvar) \
while (condition) { \
Uint32 Pixel; \
unsigned sR, sG, sB, sA; \
DISEMBLE_RGBA((Uint8 *)src, 4, srcfmt, Pixel, \
sR, sG, sB, sA); \
*(Uint16 *)(dst) = (((sR << 8) & 0x0000F800) | \
((sG << 3) & 0x000007E0) | \
((sB >> 3) & 0x0000001F)); \
dst += 2; \
src += 4; \
widthvar--; \
}
ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
/* After all that work, here's the vector part! */
extrawidth = (width % 8); /* trailing unaligned stores */
width -= extrawidth;
vsrc = vec_ld(0, src);
valigner = VEC_ALIGNER(src);
while (width) {
vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
vector unsigned int vsrc1, vsrc2;
vector unsigned char vdst;
voverflow = vec_ld(15, src);
vsrc = vec_perm(vsrc, voverflow, valigner);
vsrc1 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute);
src += 16;
vsrc = voverflow;
voverflow = vec_ld(15, src);
vsrc = vec_perm(vsrc, voverflow, valigner);
vsrc2 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute);
/* 1555 */
vpixel = (vector unsigned short) vec_packpx(vsrc1, vsrc2);
vgpixel = (vector unsigned short) vec_perm(vsrc1, vsrc2, vgmerge);
vgpixel = vec_and(vgpixel, vfc);
vgpixel = vec_sl(vgpixel, v3);
vrpixel = vec_sl(vpixel, v1);
vrpixel = vec_and(vrpixel, vf800);
vbpixel = vec_and(vpixel, v3f);
vdst =
vec_or((vector unsigned char) vrpixel,
(vector unsigned char) vgpixel);
/* 565 */
vdst = vec_or(vdst, (vector unsigned char) vbpixel);
vec_st(vdst, 0, dst);
width -= 8;
src += 16;
dst += 16;
vsrc = voverflow;
}
SDL_assert(width == 0);
/* do scalar until we can align... */
ONE_PIXEL_BLEND((extrawidth), extrawidth);
#undef ONE_PIXEL_BLEND
src += srcskip; /* move to next row, accounting for pitch. */
dst += dstskip;
}
}
static void
Blit_RGB565_32Altivec(SDL_BlitInfo * info)
{
int height = info->dst_h;
Uint8 *src = (Uint8 *) info->src;
int srcskip = info->src_skip;
Uint8 *dst = (Uint8 *) info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
unsigned alpha;
vector unsigned char valpha;
vector unsigned char vpermute;
vector unsigned short vf800;
vector unsigned int v8 = vec_splat_u32(8);
vector unsigned int v16 = vec_add(v8, v8);
vector unsigned short v2 = vec_splat_u16(2);
vector unsigned short v3 = vec_splat_u16(3);
/*
0x10 - 0x1f is the alpha
0x00 - 0x0e evens are the red
0x01 - 0x0f odds are zero
*/
vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
0x10, 0x02, 0x01, 0x01,
0x10, 0x04, 0x01, 0x01,
0x10, 0x06, 0x01,
0x01);
vector unsigned char vredalpha2 =
(vector unsigned
char) (vec_add((vector unsigned int) vredalpha1, vec_sl(v8, v16))
);
/*
0x00 - 0x0f is ARxx ARxx ARxx ARxx
0x11 - 0x0f odds are blue
*/
vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
0x04, 0x05, 0x06, 0x13,
0x08, 0x09, 0x0a, 0x15,
0x0c, 0x0d, 0x0e, 0x17);
vector unsigned char vblue2 =
(vector unsigned char) (vec_add((vector unsigned int) vblue1, v8)
);
/*
0x00 - 0x0f is ARxB ARxB ARxB ARxB
0x10 - 0x0e evens are green
*/
vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
0x04, 0x05, 0x12, 0x07,
0x08, 0x09, 0x14, 0x0b,
0x0c, 0x0d, 0x16, 0x0f);
vector unsigned char vgreen2 =
(vector unsigned
char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8, v8))
);
SDL_assert(srcfmt->BytesPerPixel == 2);
SDL_assert(dstfmt->BytesPerPixel == 4);
vf800 = (vector unsigned short) vec_splat_u8(-7);
vf800 = vec_sl(vf800, vec_splat_u16(8));
if (dstfmt->Amask && info->a) {
((unsigned char *) &valpha)[0] = alpha = info->a;
valpha = vec_splat(valpha, 0);
} else {
alpha = 0;
valpha = vec_splat_u8(0);
}
vpermute = calc_swizzle32(NULL, dstfmt);
while (height--) {
vector unsigned char valigner;
vector unsigned char voverflow;
vector unsigned char vsrc;
int width = info->dst_w;
int extrawidth;
/* do scalar until we can align... */
#define ONE_PIXEL_BLEND(condition, widthvar) \
while (condition) { \
unsigned sR, sG, sB; \
unsigned short Pixel = *((unsigned short *)src); \
sR = (Pixel >> 8) & 0xf8; \
sG = (Pixel >> 3) & 0xfc; \
sB = (Pixel << 3) & 0xf8; \
ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
src += 2; \
dst += 4; \
widthvar--; \
}
ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
/* After all that work, here's the vector part! */
extrawidth = (width % 8); /* trailing unaligned stores */
width -= extrawidth;
vsrc = vec_ld(0, src);
valigner = VEC_ALIGNER(src);
while (width) {
vector unsigned short vR, vG, vB;
vector unsigned char vdst1, vdst2;
voverflow = vec_ld(15, src);
vsrc = vec_perm(vsrc, voverflow, valigner);
vR = vec_and((vector unsigned short) vsrc, vf800);
vB = vec_sl((vector unsigned short) vsrc, v3);
vG = vec_sl(vB, v2);
vdst1 =
(vector unsigned char) vec_perm((vector unsigned char) vR,
valpha, vredalpha1);
vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
vdst1 = vec_perm(vdst1, valpha, vpermute);
vec_st(vdst1, 0, dst);
vdst2 =
(vector unsigned char) vec_perm((vector unsigned char) vR,
valpha, vredalpha2);
vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
vdst2 = vec_perm(vdst2, valpha, vpermute);
vec_st(vdst2, 16, dst);
width -= 8;
dst += 32;
src += 16;
vsrc = voverflow;
}
SDL_assert(width == 0);
/* do scalar until we can align... */
ONE_PIXEL_BLEND((extrawidth), extrawidth);
#undef ONE_PIXEL_BLEND
src += srcskip; /* move to next row, accounting for pitch. */
dst += dstskip;
}
}
static void
Blit_RGB555_32Altivec(SDL_BlitInfo * info)
{
int height = info->dst_h;
Uint8 *src = (Uint8 *) info->src;
int srcskip = info->src_skip;
Uint8 *dst = (Uint8 *) info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
unsigned alpha;
vector unsigned char valpha;
vector unsigned char vpermute;
vector unsigned short vf800;
vector unsigned int v8 = vec_splat_u32(8);
vector unsigned int v16 = vec_add(v8, v8);
vector unsigned short v1 = vec_splat_u16(1);
vector unsigned short v3 = vec_splat_u16(3);
/*
0x10 - 0x1f is the alpha
0x00 - 0x0e evens are the red
0x01 - 0x0f odds are zero
*/
vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
0x10, 0x02, 0x01, 0x01,
0x10, 0x04, 0x01, 0x01,
0x10, 0x06, 0x01,
0x01);
vector unsigned char vredalpha2 =
(vector unsigned
char) (vec_add((vector unsigned int) vredalpha1, vec_sl(v8, v16))
);
/*
0x00 - 0x0f is ARxx ARxx ARxx ARxx
0x11 - 0x0f odds are blue
*/
vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
0x04, 0x05, 0x06, 0x13,
0x08, 0x09, 0x0a, 0x15,
0x0c, 0x0d, 0x0e, 0x17);
vector unsigned char vblue2 =
(vector unsigned char) (vec_add((vector unsigned int) vblue1, v8)
);
/*
0x00 - 0x0f is ARxB ARxB ARxB ARxB
0x10 - 0x0e evens are green
*/
vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
0x04, 0x05, 0x12, 0x07,
0x08, 0x09, 0x14, 0x0b,
0x0c, 0x0d, 0x16, 0x0f);
vector unsigned char vgreen2 =
(vector unsigned
char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8, v8))
);
SDL_assert(srcfmt->BytesPerPixel == 2);
SDL_assert(dstfmt->BytesPerPixel == 4);
vf800 = (vector unsigned short) vec_splat_u8(-7);
vf800 = vec_sl(vf800, vec_splat_u16(8));
if (dstfmt->Amask && info->a) {
((unsigned char *) &valpha)[0] = alpha = info->a;
valpha = vec_splat(valpha, 0);
} else {
alpha = 0;
valpha = vec_splat_u8(0);
}
vpermute = calc_swizzle32(NULL, dstfmt);
while (height--) {
vector unsigned char valigner;
vector unsigned char voverflow;
vector unsigned char vsrc;
int width = info->dst_w;
int extrawidth;
/* do scalar until we can align... */
#define ONE_PIXEL_BLEND(condition, widthvar) \
while (condition) { \
unsigned sR, sG, sB; \
unsigned short Pixel = *((unsigned short *)src); \
sR = (Pixel >> 7) & 0xf8; \
sG = (Pixel >> 2) & 0xf8; \
sB = (Pixel << 3) & 0xf8; \
ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
src += 2; \
dst += 4; \
widthvar--; \
}
ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
/* After all that work, here's the vector part! */
extrawidth = (width % 8); /* trailing unaligned stores */
width -= extrawidth;
vsrc = vec_ld(0, src);
valigner = VEC_ALIGNER(src);
while (width) {
vector unsigned short vR, vG, vB;
vector unsigned char vdst1, vdst2;
voverflow = vec_ld(15, src);
vsrc = vec_perm(vsrc, voverflow, valigner);
vR = vec_and(vec_sl((vector unsigned short) vsrc, v1), vf800);
vB = vec_sl((vector unsigned short) vsrc, v3);
vG = vec_sl(vB, v3);
vdst1 =
(vector unsigned char) vec_perm((vector unsigned char) vR,
valpha, vredalpha1);
vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
vdst1 = vec_perm(vdst1, valpha, vpermute);
vec_st(vdst1, 0, dst);
vdst2 =
(vector unsigned char) vec_perm((vector unsigned char) vR,
valpha, vredalpha2);
vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
vdst2 = vec_perm(vdst2, valpha, vpermute);
vec_st(vdst2, 16, dst);
width -= 8;
dst += 32;
src += 16;
vsrc = voverflow;
}
SDL_assert(width == 0);
/* do scalar until we can align... */
ONE_PIXEL_BLEND((extrawidth), extrawidth);
#undef ONE_PIXEL_BLEND
src += srcskip; /* move to next row, accounting for pitch. */
dst += dstskip;
}
}
static void BlitNtoNKey(SDL_BlitInfo * info);
static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info);
static void
Blit32to32KeyAltivec(SDL_BlitInfo * info)
{
int height = info->dst_h;
Uint32 *srcp = (Uint32 *) info->src;
int srcskip = info->src_skip / 4;
Uint32 *dstp = (Uint32 *) info->dst;
int dstskip = info->dst_skip / 4;
SDL_PixelFormat *srcfmt = info->src_fmt;
int srcbpp = srcfmt->BytesPerPixel;
SDL_PixelFormat *dstfmt = info->dst_fmt;
int dstbpp = dstfmt->BytesPerPixel;
int copy_alpha = (srcfmt->Amask && dstfmt->Amask);
unsigned alpha = dstfmt->Amask ? info->a : 0;
Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
Uint32 ckey = info->colorkey;
vector unsigned int valpha;
vector unsigned char vpermute;
vector unsigned char vzero;
vector unsigned int vckey;
vector unsigned int vrgbmask;
vpermute = calc_swizzle32(srcfmt, dstfmt);
if (info->dst_w < 16) {
if (copy_alpha) {
BlitNtoNKeyCopyAlpha(info);
} else {
BlitNtoNKey(info);
}
return;
}
vzero = vec_splat_u8(0);
if (alpha) {
((unsigned char *) &valpha)[0] = (unsigned char) alpha;
valpha =
(vector unsigned int) vec_splat((vector unsigned char) valpha, 0);
} else {
valpha = (vector unsigned int) vzero;
}
ckey &= rgbmask;
((unsigned int *) (char *) &vckey)[0] = ckey;
vckey = vec_splat(vckey, 0);
((unsigned int *) (char *) &vrgbmask)[0] = rgbmask;
vrgbmask = vec_splat(vrgbmask, 0);
while (height--) {
#define ONE_PIXEL_BLEND(condition, widthvar) \
if (copy_alpha) { \
while (condition) { \
Uint32 Pixel; \
unsigned sR, sG, sB, sA; \
DISEMBLE_RGBA((Uint8 *)srcp, srcbpp, srcfmt, Pixel, \
sR, sG, sB, sA); \
if ( (Pixel & rgbmask) != ckey ) { \
ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
sR, sG, sB, sA); \
} \
dstp = (Uint32 *) (((Uint8 *) dstp) + dstbpp); \
srcp = (Uint32 *) (((Uint8 *) srcp) + srcbpp); \
widthvar--; \
} \
} else { \
while (condition) { \
Uint32 Pixel; \
unsigned sR, sG, sB; \
RETRIEVE_RGB_PIXEL((Uint8 *)srcp, srcbpp, Pixel); \
if ( Pixel != ckey ) { \
RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \
ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
sR, sG, sB, alpha); \
} \
dstp = (Uint32 *) (((Uint8 *)dstp) + dstbpp); \
srcp = (Uint32 *) (((Uint8 *)srcp) + srcbpp); \
widthvar--; \
} \
}
int width = info->dst_w;
ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
SDL_assert(width > 0);
if (width > 0) {
int extrawidth = (width % 4);
vector unsigned char valigner = VEC_ALIGNER(srcp);
vector unsigned int vs = vec_ld(0, srcp);
width -= extrawidth;
SDL_assert(width >= 4);
while (width) {
vector unsigned char vsel;
vector unsigned int vd;
vector unsigned int voverflow = vec_ld(15, srcp);
/* load the source vec */
vs = vec_perm(vs, voverflow, valigner);
/* vsel is set for items that match the key */
vsel = (vector unsigned char) vec_and(vs, vrgbmask);
vsel = (vector unsigned char) vec_cmpeq(vs, vckey);
/* permute the src vec to the dest format */
vs = vec_perm(vs, valpha, vpermute);
/* load the destination vec */
vd = vec_ld(0, dstp);
/* select the source and dest into vs */
vd = (vector unsigned int) vec_sel((vector unsigned char) vs,
(vector unsigned char) vd,
vsel);
vec_st(vd, 0, dstp);
srcp += 4;
width -= 4;
dstp += 4;
vs = voverflow;
}
ONE_PIXEL_BLEND((extrawidth), extrawidth);
#undef ONE_PIXEL_BLEND
srcp += srcskip;
dstp += dstskip;
}
}
}
/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
/* Use this on a G5 */
static void
ConvertAltivec32to32_noprefetch(SDL_BlitInfo * info)
{
int height = info->dst_h;
Uint32 *src = (Uint32 *) info->src;
int srcskip = info->src_skip / 4;
Uint32 *dst = (Uint32 *) info->dst;
int dstskip = info->dst_skip / 4;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
vector unsigned int vzero = vec_splat_u32(0);
vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
if (dstfmt->Amask && !srcfmt->Amask) {
if (info->a) {
vector unsigned char valpha;
((unsigned char *) &valpha)[0] = info->a;
vzero = (vector unsigned int) vec_splat(valpha, 0);
}
}
SDL_assert(srcfmt->BytesPerPixel == 4);
SDL_assert(dstfmt->BytesPerPixel == 4);
while (height--) {
vector unsigned char valigner;
vector unsigned int vbits;
vector unsigned int voverflow;
Uint32 bits;
Uint8 r, g, b, a;
int width = info->dst_w;
int extrawidth;
/* do scalar until we can align... */
while ((UNALIGNED_PTR(dst)) && (width)) {
bits = *(src++);
RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
if(!srcfmt->Amask)
a = info->a;
*(dst++) = MAKE8888(dstfmt, r, g, b, a);
width--;
}
/* After all that work, here's the vector part! */
extrawidth = (width % 4);
width -= extrawidth;
valigner = VEC_ALIGNER(src);
vbits = vec_ld(0, src);
while (width) {
voverflow = vec_ld(15, src);
src += 4;
width -= 4;
vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */
vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */
vec_st(vbits, 0, dst); /* store it back out. */
dst += 4;
vbits = voverflow;
}
SDL_assert(width == 0);
/* cover pixels at the end of the row that didn't fit in 16 bytes. */
while (extrawidth) {
bits = *(src++); /* max 7 pixels, don't bother with prefetch. */
RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
if(!srcfmt->Amask)
a = info->a;
*(dst++) = MAKE8888(dstfmt, r, g, b, a);
extrawidth--;
}
src += srcskip;
dst += dstskip;
}
}
/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
/* Use this on a G4 */
static void
ConvertAltivec32to32_prefetch(SDL_BlitInfo * info)
{
const int scalar_dst_lead = sizeof(Uint32) * 4;
const int vector_dst_lead = sizeof(Uint32) * 16;
int height = info->dst_h;
Uint32 *src = (Uint32 *) info->src;
int srcskip = info->src_skip / 4;
Uint32 *dst = (Uint32 *) info->dst;
int dstskip = info->dst_skip / 4;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
vector unsigned int vzero = vec_splat_u32(0);
vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
if (dstfmt->Amask && !srcfmt->Amask) {
if (info->a) {
vector unsigned char valpha;
((unsigned char *) &valpha)[0] = info->a;
vzero = (vector unsigned int) vec_splat(valpha, 0);
}
}
SDL_assert(srcfmt->BytesPerPixel == 4);
SDL_assert(dstfmt->BytesPerPixel == 4);
while (height--) {
vector unsigned char valigner;
vector unsigned int vbits;
vector unsigned int voverflow;
Uint32 bits;
Uint8 r, g, b, a;
int width = info->dst_w;
int extrawidth;
/* do scalar until we can align... */
while ((UNALIGNED_PTR(dst)) && (width)) {
vec_dstt(src + scalar_dst_lead, DST_CTRL(2, 32, 1024),
DST_CHAN_SRC);
vec_dstst(dst + scalar_dst_lead, DST_CTRL(2, 32, 1024),
DST_CHAN_DEST);
bits = *(src++);
RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
if(!srcfmt->Amask)
a = info->a;
*(dst++) = MAKE8888(dstfmt, r, g, b, a);
width--;
}
/* After all that work, here's the vector part! */
extrawidth = (width % 4);
width -= extrawidth;
valigner = VEC_ALIGNER(src);
vbits = vec_ld(0, src);
while (width) {
vec_dstt(src + vector_dst_lead, DST_CTRL(2, 32, 1024),
DST_CHAN_SRC);
vec_dstst(dst + vector_dst_lead, DST_CTRL(2, 32, 1024),
DST_CHAN_DEST);
voverflow = vec_ld(15, src);
src += 4;
width -= 4;
vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */
vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */
vec_st(vbits, 0, dst); /* store it back out. */
dst += 4;
vbits = voverflow;
}
SDL_assert(width == 0);
/* cover pixels at the end of the row that didn't fit in 16 bytes. */
while (extrawidth) {
bits = *(src++); /* max 7 pixels, don't bother with prefetch. */
RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
if(!srcfmt->Amask)
a = info->a;
*(dst++) = MAKE8888(dstfmt, r, g, b, a);
extrawidth--;
}
src += srcskip;
dst += dstskip;
}
vec_dss(DST_CHAN_SRC);
vec_dss(DST_CHAN_DEST);
}
static Uint32
GetBlitFeatures(void)
{
static Uint32 features = 0xffffffff;
if (features == 0xffffffff) {
/* Provide an override for testing .. */
char *override = SDL_getenv("SDL_ALTIVEC_BLIT_FEATURES");
if (override) {
features = 0;
SDL_sscanf(override, "%u", &features);
} else {
features = (0
/* Feature 1 is has-MMX */
| ((SDL_HasMMX())? 1 : 0)
/* Feature 2 is has-AltiVec */
| ((SDL_HasAltiVec())? 2 : 0)
/* Feature 4 is dont-use-prefetch */
/* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */
| ((GetL3CacheSize() == 0) ? 4 : 0)
);
}
}
return features;
}
#if __MWERKS__
#pragma altivec_model off
#endif
#else
/* Feature 1 is has-MMX */
#define GetBlitFeatures() ((Uint32)(SDL_HasMMX() ? 1 : 0))
#endif
/* This is now endian dependent */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define HI 1
#define LO 0
#else /* SDL_BYTEORDER == SDL_BIG_ENDIAN */
#define HI 0
#define LO 1
#endif
/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
#define RGB888_RGB332(dst, src) { \
dst = (Uint8)((((src)&0x00E00000)>>16)| \
(((src)&0x0000E000)>>11)| \
(((src)&0x000000C0)>>6)); \
}
static void
Blit_RGB888_index8(SDL_BlitInfo * info)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint32 *src;
const Uint8 *map;
Uint8 *dst;
int srcskip, dstskip;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = (Uint32 *) info->src;
srcskip = info->src_skip / 4;
dst = info->dst;
dstskip = info->dst_skip;
map = info->table;
if (map == NULL) {
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB888_RGB332(*dst++, *src);
, width);
/* *INDENT-ON* */
#else
for (c = width / 4; c; --c) {
/* Pack RGB into 8bit pixel */
++src;
RGB888_RGB332(*dst++, *src);
++src;
RGB888_RGB332(*dst++, *src);
++src;
RGB888_RGB332(*dst++, *src);
++src;
}
switch (width & 3) {
case 3:
RGB888_RGB332(*dst++, *src);
++src;
case 2:
RGB888_RGB332(*dst++, *src);
++src;
case 1:
RGB888_RGB332(*dst++, *src);
++src;
}
#endif /* USE_DUFFS_LOOP */
src += srcskip;
dst += dstskip;
}
} else {
int Pixel;
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
, width);
/* *INDENT-ON* */
#else
for (c = width / 4; c; --c) {
/* Pack RGB into 8bit pixel */
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
}
switch (width & 3) {
case 3:
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
case 2:
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
case 1:
RGB888_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
}
#endif /* USE_DUFFS_LOOP */
src += srcskip;
dst += dstskip;
}
}
}
/* Special optimized blit for RGB 10-10-10 --> RGB 3-3-2 */
#define RGB101010_RGB332(dst, src) { \
dst = (Uint8)((((src)&0x38000000)>>22)| \
(((src)&0x000E0000)>>15)| \
(((src)&0x00000300)>>8)); \
}
static void
Blit_RGB101010_index8(SDL_BlitInfo * info)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint32 *src;
const Uint8 *map;
Uint8 *dst;
int srcskip, dstskip;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = (Uint32 *) info->src;
srcskip = info->src_skip / 4;
dst = info->dst;
dstskip = info->dst_skip;
map = info->table;
if (map == NULL) {
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB101010_RGB332(*dst++, *src);
, width);
/* *INDENT-ON* */
#else
for (c = width / 4; c; --c) {
/* Pack RGB into 8bit pixel */
++src;
RGB101010_RGB332(*dst++, *src);
++src;
RGB101010_RGB332(*dst++, *src);
++src;
RGB101010_RGB332(*dst++, *src);
++src;
}
switch (width & 3) {
case 3:
RGB101010_RGB332(*dst++, *src);
++src;
case 2:
RGB101010_RGB332(*dst++, *src);
++src;
case 1:
RGB101010_RGB332(*dst++, *src);
++src;
}
#endif /* USE_DUFFS_LOOP */
src += srcskip;
dst += dstskip;
}
} else {
int Pixel;
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
, width);
/* *INDENT-ON* */
#else
for (c = width / 4; c; --c) {
/* Pack RGB into 8bit pixel */
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
}
switch (width & 3) {
case 3:
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
case 2:
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
case 1:
RGB101010_RGB332(Pixel, *src);
*dst++ = map[Pixel];
++src;
}
#endif /* USE_DUFFS_LOOP */
src += srcskip;
dst += dstskip;
}
}
}
/* Special optimized blit for RGB 8-8-8 --> RGB 5-5-5 */
#define RGB888_RGB555(dst, src) { \
*(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>9)| \
(((*src)&0x0000F800)>>6)| \
(((*src)&0x000000F8)>>3)); \
}
Fixed bug 1646 - Warnings from clang with -Weverything
2016-11-15 09:30:08 +00:00
#ifndef USE_DUFFS_LOOP
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
#define RGB888_RGB555_TWO(dst, src) { \
*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>9)| \
(((src[HI])&0x0000F800)>>6)| \
(((src[HI])&0x000000F8)>>3))<<16)| \
(((src[LO])&0x00F80000)>>9)| \
(((src[LO])&0x0000F800)>>6)| \
(((src[LO])&0x000000F8)>>3); \
}
Fixed bug 1646 - Warnings from clang with -Weverything
2016-11-15 09:30:08 +00:00
#endif
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
static void
Blit_RGB888_RGB555(SDL_BlitInfo * info)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint32 *src;
Uint16 *dst;
int srcskip, dstskip;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = (Uint32 *) info->src;
srcskip = info->src_skip / 4;
dst = (Uint16 *) info->dst;
dstskip = info->dst_skip / 2;
#ifdef USE_DUFFS_LOOP
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB888_RGB555(dst, src);
++src;
++dst;
, width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
#else
/* Memory align at 4-byte boundary, if necessary */
if ((long) dst & 0x03) {
/* Don't do anything if width is 0 */
if (width == 0) {
return;
}
--width;
while (height--) {
/* Perform copy alignment */
RGB888_RGB555(dst, src);
++src;
++dst;
/* Copy in 4 pixel chunks */
for (c = width / 4; c; --c) {
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
}
/* Get any leftovers */
switch (width & 3) {
case 3:
RGB888_RGB555(dst, src);
++src;
++dst;
case 2:
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
break;
case 1:
RGB888_RGB555(dst, src);
++src;
++dst;
break;
}
src += srcskip;
dst += dstskip;
}
} else {
while (height--) {
/* Copy in 4 pixel chunks */
for (c = width / 4; c; --c) {
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
}
/* Get any leftovers */
switch (width & 3) {
case 3:
RGB888_RGB555(dst, src);
++src;
++dst;
case 2:
RGB888_RGB555_TWO(dst, src);
src += 2;
dst += 2;
break;
case 1:
RGB888_RGB555(dst, src);
++src;
++dst;
break;
}
src += srcskip;
dst += dstskip;
}
}
#endif /* USE_DUFFS_LOOP */
}
/* Special optimized blit for RGB 8-8-8 --> RGB 5-6-5 */
#define RGB888_RGB565(dst, src) { \
*(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>8)| \
(((*src)&0x0000FC00)>>5)| \
(((*src)&0x000000F8)>>3)); \
}
Fixed bug 1646 - Warnings from clang with -Weverything
2016-11-15 09:30:08 +00:00
#ifndef USE_DUFFS_LOOP
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
#define RGB888_RGB565_TWO(dst, src) { \
*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>8)| \
(((src[HI])&0x0000FC00)>>5)| \
(((src[HI])&0x000000F8)>>3))<<16)| \
(((src[LO])&0x00F80000)>>8)| \
(((src[LO])&0x0000FC00)>>5)| \
(((src[LO])&0x000000F8)>>3); \
}
Fixed bug 1646 - Warnings from clang with -Weverything
2016-11-15 09:30:08 +00:00
#endif
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
static void
Blit_RGB888_RGB565(SDL_BlitInfo * info)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint32 *src;
Uint16 *dst;
int srcskip, dstskip;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = (Uint32 *) info->src;
srcskip = info->src_skip / 4;
dst = (Uint16 *) info->dst;
dstskip = info->dst_skip / 2;
#ifdef USE_DUFFS_LOOP
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
RGB888_RGB565(dst, src);
++src;
++dst;
, width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
#else
/* Memory align at 4-byte boundary, if necessary */
if ((long) dst & 0x03) {
/* Don't do anything if width is 0 */
if (width == 0) {
return;
}
--width;
while (height--) {
/* Perform copy alignment */
RGB888_RGB565(dst, src);
++src;
++dst;
/* Copy in 4 pixel chunks */
for (c = width / 4; c; --c) {
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
}
/* Get any leftovers */
switch (width & 3) {
case 3:
RGB888_RGB565(dst, src);
++src;
++dst;
case 2:
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
break;
case 1:
RGB888_RGB565(dst, src);
++src;
++dst;
break;
}
src += srcskip;
dst += dstskip;
}
} else {
while (height--) {
/* Copy in 4 pixel chunks */
for (c = width / 4; c; --c) {
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
}
/* Get any leftovers */
switch (width & 3) {
case 3:
RGB888_RGB565(dst, src);
++src;
++dst;
case 2:
RGB888_RGB565_TWO(dst, src);
src += 2;
dst += 2;
break;
case 1:
RGB888_RGB565(dst, src);
++src;
++dst;
break;
}
src += srcskip;
dst += dstskip;
}
}
#endif /* USE_DUFFS_LOOP */
}
/* Special optimized blit for RGB 5-6-5 --> 32-bit RGB surfaces */
#define RGB565_32(dst, src, map) (map[src[LO]*2] + map[src[HI]*2+1])
static void
Blit_RGB565_32(SDL_BlitInfo * info, const Uint32 * map)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint8 *src;
Uint32 *dst;
int srcskip, dstskip;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = (Uint8 *) info->src;
srcskip = info->src_skip;
dst = (Uint32 *) info->dst;
dstskip = info->dst_skip / 4;
#ifdef USE_DUFFS_LOOP
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
*dst++ = RGB565_32(dst, src, map);
src += 2;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
#else
while (height--) {
/* Copy in 4 pixel chunks */
for (c = width / 4; c; --c) {
*dst++ = RGB565_32(dst, src, map);
src += 2;
*dst++ = RGB565_32(dst, src, map);
src += 2;
*dst++ = RGB565_32(dst, src, map);
src += 2;
*dst++ = RGB565_32(dst, src, map);
src += 2;
}
/* Get any leftovers */
switch (width & 3) {
case 3:
*dst++ = RGB565_32(dst, src, map);
src += 2;
case 2:
*dst++ = RGB565_32(dst, src, map);
src += 2;
case 1:
*dst++ = RGB565_32(dst, src, map);
src += 2;
break;
}
src += srcskip;
dst += dstskip;
}
#endif /* USE_DUFFS_LOOP */
}
/* Special optimized blit for RGB 5-6-5 --> ARGB 8-8-8-8 */
static const Uint32 RGB565_ARGB8888_LUT[512] = {
0x00000000, 0xff000000, 0x00000008, 0xff002000,
0x00000010, 0xff004000, 0x00000018, 0xff006100,
0x00000020, 0xff008100, 0x00000029, 0xff00a100,
0x00000031, 0xff00c200, 0x00000039, 0xff00e200,
0x00000041, 0xff080000, 0x0000004a, 0xff082000,
0x00000052, 0xff084000, 0x0000005a, 0xff086100,
0x00000062, 0xff088100, 0x0000006a, 0xff08a100,
0x00000073, 0xff08c200, 0x0000007b, 0xff08e200,
0x00000083, 0xff100000, 0x0000008b, 0xff102000,
0x00000094, 0xff104000, 0x0000009c, 0xff106100,
0x000000a4, 0xff108100, 0x000000ac, 0xff10a100,
0x000000b4, 0xff10c200, 0x000000bd, 0xff10e200,
0x000000c5, 0xff180000, 0x000000cd, 0xff182000,
0x000000d5, 0xff184000, 0x000000de, 0xff186100,
0x000000e6, 0xff188100, 0x000000ee, 0xff18a100,
0x000000f6, 0xff18c200, 0x000000ff, 0xff18e200,
0x00000400, 0xff200000, 0x00000408, 0xff202000,
0x00000410, 0xff204000, 0x00000418, 0xff206100,
0x00000420, 0xff208100, 0x00000429, 0xff20a100,
0x00000431, 0xff20c200, 0x00000439, 0xff20e200,
0x00000441, 0xff290000, 0x0000044a, 0xff292000,
0x00000452, 0xff294000, 0x0000045a, 0xff296100,
0x00000462, 0xff298100, 0x0000046a, 0xff29a100,
0x00000473, 0xff29c200, 0x0000047b, 0xff29e200,
0x00000483, 0xff310000, 0x0000048b, 0xff312000,
0x00000494, 0xff314000, 0x0000049c, 0xff316100,
0x000004a4, 0xff318100, 0x000004ac, 0xff31a100,
0x000004b4, 0xff31c200, 0x000004bd, 0xff31e200,
0x000004c5, 0xff390000, 0x000004cd, 0xff392000,
0x000004d5, 0xff394000, 0x000004de, 0xff396100,
0x000004e6, 0xff398100, 0x000004ee, 0xff39a100,
0x000004f6, 0xff39c200, 0x000004ff, 0xff39e200,
0x00000800, 0xff410000, 0x00000808, 0xff412000,
0x00000810, 0xff414000, 0x00000818, 0xff416100,
0x00000820, 0xff418100, 0x00000829, 0xff41a100,
0x00000831, 0xff41c200, 0x00000839, 0xff41e200,
0x00000841, 0xff4a0000, 0x0000084a, 0xff4a2000,
0x00000852, 0xff4a4000, 0x0000085a, 0xff4a6100,
0x00000862, 0xff4a8100, 0x0000086a, 0xff4aa100,
0x00000873, 0xff4ac200, 0x0000087b, 0xff4ae200,
0x00000883, 0xff520000, 0x0000088b, 0xff522000,
0x00000894, 0xff524000, 0x0000089c, 0xff526100,
0x000008a4, 0xff528100, 0x000008ac, 0xff52a100,
0x000008b4, 0xff52c200, 0x000008bd, 0xff52e200,
0x000008c5, 0xff5a0000, 0x000008cd, 0xff5a2000,
0x000008d5, 0xff5a4000, 0x000008de, 0xff5a6100,
0x000008e6, 0xff5a8100, 0x000008ee, 0xff5aa100,
0x000008f6, 0xff5ac200, 0x000008ff, 0xff5ae200,
0x00000c00, 0xff620000, 0x00000c08, 0xff622000,
0x00000c10, 0xff624000, 0x00000c18, 0xff626100,
0x00000c20, 0xff628100, 0x00000c29, 0xff62a100,
0x00000c31, 0xff62c200, 0x00000c39, 0xff62e200,
0x00000c41, 0xff6a0000, 0x00000c4a, 0xff6a2000,
0x00000c52, 0xff6a4000, 0x00000c5a, 0xff6a6100,
0x00000c62, 0xff6a8100, 0x00000c6a, 0xff6aa100,
0x00000c73, 0xff6ac200, 0x00000c7b, 0xff6ae200,
0x00000c83, 0xff730000, 0x00000c8b, 0xff732000,
0x00000c94, 0xff734000, 0x00000c9c, 0xff736100,
0x00000ca4, 0xff738100, 0x00000cac, 0xff73a100,
0x00000cb4, 0xff73c200, 0x00000cbd, 0xff73e200,
0x00000cc5, 0xff7b0000, 0x00000ccd, 0xff7b2000,
0x00000cd5, 0xff7b4000, 0x00000cde, 0xff7b6100,
0x00000ce6, 0xff7b8100, 0x00000cee, 0xff7ba100,
0x00000cf6, 0xff7bc200, 0x00000cff, 0xff7be200,
0x00001000, 0xff830000, 0x00001008, 0xff832000,
0x00001010, 0xff834000, 0x00001018, 0xff836100,
0x00001020, 0xff838100, 0x00001029, 0xff83a100,
0x00001031, 0xff83c200, 0x00001039, 0xff83e200,
0x00001041, 0xff8b0000, 0x0000104a, 0xff8b2000,
0x00001052, 0xff8b4000, 0x0000105a, 0xff8b6100,
0x00001062, 0xff8b8100, 0x0000106a, 0xff8ba100,
0x00001073, 0xff8bc200, 0x0000107b, 0xff8be200,
0x00001083, 0xff940000, 0x0000108b, 0xff942000,
0x00001094, 0xff944000, 0x0000109c, 0xff946100,
0x000010a4, 0xff948100, 0x000010ac, 0xff94a100,
0x000010b4, 0xff94c200, 0x000010bd, 0xff94e200,
0x000010c5, 0xff9c0000, 0x000010cd, 0xff9c2000,
0x000010d5, 0xff9c4000, 0x000010de, 0xff9c6100,
0x000010e6, 0xff9c8100, 0x000010ee, 0xff9ca100,
0x000010f6, 0xff9cc200, 0x000010ff, 0xff9ce200,
0x00001400, 0xffa40000, 0x00001408, 0xffa42000,
0x00001410, 0xffa44000, 0x00001418, 0xffa46100,
0x00001420, 0xffa48100, 0x00001429, 0xffa4a100,
0x00001431, 0xffa4c200, 0x00001439, 0xffa4e200,
0x00001441, 0xffac0000, 0x0000144a, 0xffac2000,
0x00001452, 0xffac4000, 0x0000145a, 0xffac6100,
0x00001462, 0xffac8100, 0x0000146a, 0xffaca100,
0x00001473, 0xffacc200, 0x0000147b, 0xfface200,
0x00001483, 0xffb40000, 0x0000148b, 0xffb42000,
0x00001494, 0xffb44000, 0x0000149c, 0xffb46100,
0x000014a4, 0xffb48100, 0x000014ac, 0xffb4a100,
0x000014b4, 0xffb4c200, 0x000014bd, 0xffb4e200,
0x000014c5, 0xffbd0000, 0x000014cd, 0xffbd2000,
0x000014d5, 0xffbd4000, 0x000014de, 0xffbd6100,
0x000014e6, 0xffbd8100, 0x000014ee, 0xffbda100,
0x000014f6, 0xffbdc200, 0x000014ff, 0xffbde200,
0x00001800, 0xffc50000, 0x00001808, 0xffc52000,
0x00001810, 0xffc54000, 0x00001818, 0xffc56100,
0x00001820, 0xffc58100, 0x00001829, 0xffc5a100,
0x00001831, 0xffc5c200, 0x00001839, 0xffc5e200,
0x00001841, 0xffcd0000, 0x0000184a, 0xffcd2000,
0x00001852, 0xffcd4000, 0x0000185a, 0xffcd6100,
0x00001862, 0xffcd8100, 0x0000186a, 0xffcda100,
0x00001873, 0xffcdc200, 0x0000187b, 0xffcde200,
0x00001883, 0xffd50000, 0x0000188b, 0xffd52000,
0x00001894, 0xffd54000, 0x0000189c, 0xffd56100,
0x000018a4, 0xffd58100, 0x000018ac, 0xffd5a100,
0x000018b4, 0xffd5c200, 0x000018bd, 0xffd5e200,
0x000018c5, 0xffde0000, 0x000018cd, 0xffde2000,
0x000018d5, 0xffde4000, 0x000018de, 0xffde6100,
0x000018e6, 0xffde8100, 0x000018ee, 0xffdea100,
0x000018f6, 0xffdec200, 0x000018ff, 0xffdee200,
0x00001c00, 0xffe60000, 0x00001c08, 0xffe62000,
0x00001c10, 0xffe64000, 0x00001c18, 0xffe66100,
0x00001c20, 0xffe68100, 0x00001c29, 0xffe6a100,
0x00001c31, 0xffe6c200, 0x00001c39, 0xffe6e200,
0x00001c41, 0xffee0000, 0x00001c4a, 0xffee2000,
0x00001c52, 0xffee4000, 0x00001c5a, 0xffee6100,
0x00001c62, 0xffee8100, 0x00001c6a, 0xffeea100,
0x00001c73, 0xffeec200, 0x00001c7b, 0xffeee200,
0x00001c83, 0xfff60000, 0x00001c8b, 0xfff62000,
0x00001c94, 0xfff64000, 0x00001c9c, 0xfff66100,
0x00001ca4, 0xfff68100, 0x00001cac, 0xfff6a100,
0x00001cb4, 0xfff6c200, 0x00001cbd, 0xfff6e200,
0x00001cc5, 0xffff0000, 0x00001ccd, 0xffff2000,
0x00001cd5, 0xffff4000, 0x00001cde, 0xffff6100,
0x00001ce6, 0xffff8100, 0x00001cee, 0xffffa100,
0x00001cf6, 0xffffc200, 0x00001cff, 0xffffe200
};
static void
Blit_RGB565_ARGB8888(SDL_BlitInfo * info)
{
Blit_RGB565_32(info, RGB565_ARGB8888_LUT);
}
/* Special optimized blit for RGB 5-6-5 --> ABGR 8-8-8-8 */
static const Uint32 RGB565_ABGR8888_LUT[512] = {
0xff000000, 0x00000000, 0xff080000, 0x00002000,
0xff100000, 0x00004000, 0xff180000, 0x00006100,
0xff200000, 0x00008100, 0xff290000, 0x0000a100,
0xff310000, 0x0000c200, 0xff390000, 0x0000e200,
0xff410000, 0x00000008, 0xff4a0000, 0x00002008,
0xff520000, 0x00004008, 0xff5a0000, 0x00006108,
0xff620000, 0x00008108, 0xff6a0000, 0x0000a108,
0xff730000, 0x0000c208, 0xff7b0000, 0x0000e208,
0xff830000, 0x00000010, 0xff8b0000, 0x00002010,
0xff940000, 0x00004010, 0xff9c0000, 0x00006110,
0xffa40000, 0x00008110, 0xffac0000, 0x0000a110,
0xffb40000, 0x0000c210, 0xffbd0000, 0x0000e210,
0xffc50000, 0x00000018, 0xffcd0000, 0x00002018,
0xffd50000, 0x00004018, 0xffde0000, 0x00006118,
0xffe60000, 0x00008118, 0xffee0000, 0x0000a118,
0xfff60000, 0x0000c218, 0xffff0000, 0x0000e218,
0xff000400, 0x00000020, 0xff080400, 0x00002020,
0xff100400, 0x00004020, 0xff180400, 0x00006120,
0xff200400, 0x00008120, 0xff290400, 0x0000a120,
0xff310400, 0x0000c220, 0xff390400, 0x0000e220,
0xff410400, 0x00000029, 0xff4a0400, 0x00002029,
0xff520400, 0x00004029, 0xff5a0400, 0x00006129,
0xff620400, 0x00008129, 0xff6a0400, 0x0000a129,
0xff730400, 0x0000c229, 0xff7b0400, 0x0000e229,
0xff830400, 0x00000031, 0xff8b0400, 0x00002031,
0xff940400, 0x00004031, 0xff9c0400, 0x00006131,
0xffa40400, 0x00008131, 0xffac0400, 0x0000a131,
0xffb40400, 0x0000c231, 0xffbd0400, 0x0000e231,
0xffc50400, 0x00000039, 0xffcd0400, 0x00002039,
0xffd50400, 0x00004039, 0xffde0400, 0x00006139,
0xffe60400, 0x00008139, 0xffee0400, 0x0000a139,
0xfff60400, 0x0000c239, 0xffff0400, 0x0000e239,
0xff000800, 0x00000041, 0xff080800, 0x00002041,
0xff100800, 0x00004041, 0xff180800, 0x00006141,
0xff200800, 0x00008141, 0xff290800, 0x0000a141,
0xff310800, 0x0000c241, 0xff390800, 0x0000e241,
0xff410800, 0x0000004a, 0xff4a0800, 0x0000204a,
0xff520800, 0x0000404a, 0xff5a0800, 0x0000614a,
0xff620800, 0x0000814a, 0xff6a0800, 0x0000a14a,
0xff730800, 0x0000c24a, 0xff7b0800, 0x0000e24a,
0xff830800, 0x00000052, 0xff8b0800, 0x00002052,
0xff940800, 0x00004052, 0xff9c0800, 0x00006152,
0xffa40800, 0x00008152, 0xffac0800, 0x0000a152,
0xffb40800, 0x0000c252, 0xffbd0800, 0x0000e252,
0xffc50800, 0x0000005a, 0xffcd0800, 0x0000205a,
0xffd50800, 0x0000405a, 0xffde0800, 0x0000615a,
0xffe60800, 0x0000815a, 0xffee0800, 0x0000a15a,
0xfff60800, 0x0000c25a, 0xffff0800, 0x0000e25a,
0xff000c00, 0x00000062, 0xff080c00, 0x00002062,
0xff100c00, 0x00004062, 0xff180c00, 0x00006162,
0xff200c00, 0x00008162, 0xff290c00, 0x0000a162,
0xff310c00, 0x0000c262, 0xff390c00, 0x0000e262,
0xff410c00, 0x0000006a, 0xff4a0c00, 0x0000206a,
0xff520c00, 0x0000406a, 0xff5a0c00, 0x0000616a,
0xff620c00, 0x0000816a, 0xff6a0c00, 0x0000a16a,
0xff730c00, 0x0000c26a, 0xff7b0c00, 0x0000e26a,
0xff830c00, 0x00000073, 0xff8b0c00, 0x00002073,
0xff940c00, 0x00004073, 0xff9c0c00, 0x00006173,
0xffa40c00, 0x00008173, 0xffac0c00, 0x0000a173,
0xffb40c00, 0x0000c273, 0xffbd0c00, 0x0000e273,
0xffc50c00, 0x0000007b, 0xffcd0c00, 0x0000207b,
0xffd50c00, 0x0000407b, 0xffde0c00, 0x0000617b,
0xffe60c00, 0x0000817b, 0xffee0c00, 0x0000a17b,
0xfff60c00, 0x0000c27b, 0xffff0c00, 0x0000e27b,
0xff001000, 0x00000083, 0xff081000, 0x00002083,
0xff101000, 0x00004083, 0xff181000, 0x00006183,
0xff201000, 0x00008183, 0xff291000, 0x0000a183,
0xff311000, 0x0000c283, 0xff391000, 0x0000e283,
0xff411000, 0x0000008b, 0xff4a1000, 0x0000208b,
0xff521000, 0x0000408b, 0xff5a1000, 0x0000618b,
0xff621000, 0x0000818b, 0xff6a1000, 0x0000a18b,
0xff731000, 0x0000c28b, 0xff7b1000, 0x0000e28b,
0xff831000, 0x00000094, 0xff8b1000, 0x00002094,
0xff941000, 0x00004094, 0xff9c1000, 0x00006194,
0xffa41000, 0x00008194, 0xffac1000, 0x0000a194,
0xffb41000, 0x0000c294, 0xffbd1000, 0x0000e294,
0xffc51000, 0x0000009c, 0xffcd1000, 0x0000209c,
0xffd51000, 0x0000409c, 0xffde1000, 0x0000619c,
0xffe61000, 0x0000819c, 0xffee1000, 0x0000a19c,
0xfff61000, 0x0000c29c, 0xffff1000, 0x0000e29c,
0xff001400, 0x000000a4, 0xff081400, 0x000020a4,
0xff101400, 0x000040a4, 0xff181400, 0x000061a4,
0xff201400, 0x000081a4, 0xff291400, 0x0000a1a4,
0xff311400, 0x0000c2a4, 0xff391400, 0x0000e2a4,
0xff411400, 0x000000ac, 0xff4a1400, 0x000020ac,
0xff521400, 0x000040ac, 0xff5a1400, 0x000061ac,
0xff621400, 0x000081ac, 0xff6a1400, 0x0000a1ac,
0xff731400, 0x0000c2ac, 0xff7b1400, 0x0000e2ac,
0xff831400, 0x000000b4, 0xff8b1400, 0x000020b4,
0xff941400, 0x000040b4, 0xff9c1400, 0x000061b4,
0xffa41400, 0x000081b4, 0xffac1400, 0x0000a1b4,
0xffb41400, 0x0000c2b4, 0xffbd1400, 0x0000e2b4,
0xffc51400, 0x000000bd, 0xffcd1400, 0x000020bd,
0xffd51400, 0x000040bd, 0xffde1400, 0x000061bd,
0xffe61400, 0x000081bd, 0xffee1400, 0x0000a1bd,
0xfff61400, 0x0000c2bd, 0xffff1400, 0x0000e2bd,
0xff001800, 0x000000c5, 0xff081800, 0x000020c5,
0xff101800, 0x000040c5, 0xff181800, 0x000061c5,
0xff201800, 0x000081c5, 0xff291800, 0x0000a1c5,
0xff311800, 0x0000c2c5, 0xff391800, 0x0000e2c5,
0xff411800, 0x000000cd, 0xff4a1800, 0x000020cd,
0xff521800, 0x000040cd, 0xff5a1800, 0x000061cd,
0xff621800, 0x000081cd, 0xff6a1800, 0x0000a1cd,
0xff731800, 0x0000c2cd, 0xff7b1800, 0x0000e2cd,
0xff831800, 0x000000d5, 0xff8b1800, 0x000020d5,
0xff941800, 0x000040d5, 0xff9c1800, 0x000061d5,
0xffa41800, 0x000081d5, 0xffac1800, 0x0000a1d5,
0xffb41800, 0x0000c2d5, 0xffbd1800, 0x0000e2d5,
0xffc51800, 0x000000de, 0xffcd1800, 0x000020de,
0xffd51800, 0x000040de, 0xffde1800, 0x000061de,
0xffe61800, 0x000081de, 0xffee1800, 0x0000a1de,
0xfff61800, 0x0000c2de, 0xffff1800, 0x0000e2de,
0xff001c00, 0x000000e6, 0xff081c00, 0x000020e6,
0xff101c00, 0x000040e6, 0xff181c00, 0x000061e6,
0xff201c00, 0x000081e6, 0xff291c00, 0x0000a1e6,
0xff311c00, 0x0000c2e6, 0xff391c00, 0x0000e2e6,
0xff411c00, 0x000000ee, 0xff4a1c00, 0x000020ee,
0xff521c00, 0x000040ee, 0xff5a1c00, 0x000061ee,
0xff621c00, 0x000081ee, 0xff6a1c00, 0x0000a1ee,
0xff731c00, 0x0000c2ee, 0xff7b1c00, 0x0000e2ee,
0xff831c00, 0x000000f6, 0xff8b1c00, 0x000020f6,
0xff941c00, 0x000040f6, 0xff9c1c00, 0x000061f6,
0xffa41c00, 0x000081f6, 0xffac1c00, 0x0000a1f6,
0xffb41c00, 0x0000c2f6, 0xffbd1c00, 0x0000e2f6,
0xffc51c00, 0x000000ff, 0xffcd1c00, 0x000020ff,
0xffd51c00, 0x000040ff, 0xffde1c00, 0x000061ff,
0xffe61c00, 0x000081ff, 0xffee1c00, 0x0000a1ff,
0xfff61c00, 0x0000c2ff, 0xffff1c00, 0x0000e2ff
};
static void
Blit_RGB565_ABGR8888(SDL_BlitInfo * info)
{
Blit_RGB565_32(info, RGB565_ABGR8888_LUT);
}
/* Special optimized blit for RGB 5-6-5 --> RGBA 8-8-8-8 */
static const Uint32 RGB565_RGBA8888_LUT[512] = {
0x000000ff, 0x00000000, 0x000008ff, 0x00200000,
0x000010ff, 0x00400000, 0x000018ff, 0x00610000,
0x000020ff, 0x00810000, 0x000029ff, 0x00a10000,
0x000031ff, 0x00c20000, 0x000039ff, 0x00e20000,
0x000041ff, 0x08000000, 0x00004aff, 0x08200000,
0x000052ff, 0x08400000, 0x00005aff, 0x08610000,
0x000062ff, 0x08810000, 0x00006aff, 0x08a10000,
0x000073ff, 0x08c20000, 0x00007bff, 0x08e20000,
0x000083ff, 0x10000000, 0x00008bff, 0x10200000,
0x000094ff, 0x10400000, 0x00009cff, 0x10610000,
0x0000a4ff, 0x10810000, 0x0000acff, 0x10a10000,
0x0000b4ff, 0x10c20000, 0x0000bdff, 0x10e20000,
0x0000c5ff, 0x18000000, 0x0000cdff, 0x18200000,
0x0000d5ff, 0x18400000, 0x0000deff, 0x18610000,
0x0000e6ff, 0x18810000, 0x0000eeff, 0x18a10000,
0x0000f6ff, 0x18c20000, 0x0000ffff, 0x18e20000,
0x000400ff, 0x20000000, 0x000408ff, 0x20200000,
0x000410ff, 0x20400000, 0x000418ff, 0x20610000,
0x000420ff, 0x20810000, 0x000429ff, 0x20a10000,
0x000431ff, 0x20c20000, 0x000439ff, 0x20e20000,
0x000441ff, 0x29000000, 0x00044aff, 0x29200000,
0x000452ff, 0x29400000, 0x00045aff, 0x29610000,
0x000462ff, 0x29810000, 0x00046aff, 0x29a10000,
0x000473ff, 0x29c20000, 0x00047bff, 0x29e20000,
0x000483ff, 0x31000000, 0x00048bff, 0x31200000,
0x000494ff, 0x31400000, 0x00049cff, 0x31610000,
0x0004a4ff, 0x31810000, 0x0004acff, 0x31a10000,
0x0004b4ff, 0x31c20000, 0x0004bdff, 0x31e20000,
0x0004c5ff, 0x39000000, 0x0004cdff, 0x39200000,
0x0004d5ff, 0x39400000, 0x0004deff, 0x39610000,
0x0004e6ff, 0x39810000, 0x0004eeff, 0x39a10000,
0x0004f6ff, 0x39c20000, 0x0004ffff, 0x39e20000,
0x000800ff, 0x41000000, 0x000808ff, 0x41200000,
0x000810ff, 0x41400000, 0x000818ff, 0x41610000,
0x000820ff, 0x41810000, 0x000829ff, 0x41a10000,
0x000831ff, 0x41c20000, 0x000839ff, 0x41e20000,
0x000841ff, 0x4a000000, 0x00084aff, 0x4a200000,
0x000852ff, 0x4a400000, 0x00085aff, 0x4a610000,
0x000862ff, 0x4a810000, 0x00086aff, 0x4aa10000,
0x000873ff, 0x4ac20000, 0x00087bff, 0x4ae20000,
0x000883ff, 0x52000000, 0x00088bff, 0x52200000,
0x000894ff, 0x52400000, 0x00089cff, 0x52610000,
0x0008a4ff, 0x52810000, 0x0008acff, 0x52a10000,
0x0008b4ff, 0x52c20000, 0x0008bdff, 0x52e20000,
0x0008c5ff, 0x5a000000, 0x0008cdff, 0x5a200000,
0x0008d5ff, 0x5a400000, 0x0008deff, 0x5a610000,
0x0008e6ff, 0x5a810000, 0x0008eeff, 0x5aa10000,
0x0008f6ff, 0x5ac20000, 0x0008ffff, 0x5ae20000,
0x000c00ff, 0x62000000, 0x000c08ff, 0x62200000,
0x000c10ff, 0x62400000, 0x000c18ff, 0x62610000,
0x000c20ff, 0x62810000, 0x000c29ff, 0x62a10000,
0x000c31ff, 0x62c20000, 0x000c39ff, 0x62e20000,
0x000c41ff, 0x6a000000, 0x000c4aff, 0x6a200000,
0x000c52ff, 0x6a400000, 0x000c5aff, 0x6a610000,
0x000c62ff, 0x6a810000, 0x000c6aff, 0x6aa10000,
0x000c73ff, 0x6ac20000, 0x000c7bff, 0x6ae20000,
0x000c83ff, 0x73000000, 0x000c8bff, 0x73200000,
0x000c94ff, 0x73400000, 0x000c9cff, 0x73610000,
0x000ca4ff, 0x73810000, 0x000cacff, 0x73a10000,
0x000cb4ff, 0x73c20000, 0x000cbdff, 0x73e20000,
0x000cc5ff, 0x7b000000, 0x000ccdff, 0x7b200000,
0x000cd5ff, 0x7b400000, 0x000cdeff, 0x7b610000,
0x000ce6ff, 0x7b810000, 0x000ceeff, 0x7ba10000,
0x000cf6ff, 0x7bc20000, 0x000cffff, 0x7be20000,
0x001000ff, 0x83000000, 0x001008ff, 0x83200000,
0x001010ff, 0x83400000, 0x001018ff, 0x83610000,
0x001020ff, 0x83810000, 0x001029ff, 0x83a10000,
0x001031ff, 0x83c20000, 0x001039ff, 0x83e20000,
0x001041ff, 0x8b000000, 0x00104aff, 0x8b200000,
0x001052ff, 0x8b400000, 0x00105aff, 0x8b610000,
0x001062ff, 0x8b810000, 0x00106aff, 0x8ba10000,
0x001073ff, 0x8bc20000, 0x00107bff, 0x8be20000,
0x001083ff, 0x94000000, 0x00108bff, 0x94200000,
0x001094ff, 0x94400000, 0x00109cff, 0x94610000,
0x0010a4ff, 0x94810000, 0x0010acff, 0x94a10000,
0x0010b4ff, 0x94c20000, 0x0010bdff, 0x94e20000,
0x0010c5ff, 0x9c000000, 0x0010cdff, 0x9c200000,
0x0010d5ff, 0x9c400000, 0x0010deff, 0x9c610000,
0x0010e6ff, 0x9c810000, 0x0010eeff, 0x9ca10000,
0x0010f6ff, 0x9cc20000, 0x0010ffff, 0x9ce20000,
0x001400ff, 0xa4000000, 0x001408ff, 0xa4200000,
0x001410ff, 0xa4400000, 0x001418ff, 0xa4610000,
0x001420ff, 0xa4810000, 0x001429ff, 0xa4a10000,
0x001431ff, 0xa4c20000, 0x001439ff, 0xa4e20000,
0x001441ff, 0xac000000, 0x00144aff, 0xac200000,
0x001452ff, 0xac400000, 0x00145aff, 0xac610000,
0x001462ff, 0xac810000, 0x00146aff, 0xaca10000,
0x001473ff, 0xacc20000, 0x00147bff, 0xace20000,
0x001483ff, 0xb4000000, 0x00148bff, 0xb4200000,
0x001494ff, 0xb4400000, 0x00149cff, 0xb4610000,
0x0014a4ff, 0xb4810000, 0x0014acff, 0xb4a10000,
0x0014b4ff, 0xb4c20000, 0x0014bdff, 0xb4e20000,
0x0014c5ff, 0xbd000000, 0x0014cdff, 0xbd200000,
0x0014d5ff, 0xbd400000, 0x0014deff, 0xbd610000,
0x0014e6ff, 0xbd810000, 0x0014eeff, 0xbda10000,
0x0014f6ff, 0xbdc20000, 0x0014ffff, 0xbde20000,
0x001800ff, 0xc5000000, 0x001808ff, 0xc5200000,
0x001810ff, 0xc5400000, 0x001818ff, 0xc5610000,
0x001820ff, 0xc5810000, 0x001829ff, 0xc5a10000,
0x001831ff, 0xc5c20000, 0x001839ff, 0xc5e20000,
0x001841ff, 0xcd000000, 0x00184aff, 0xcd200000,
0x001852ff, 0xcd400000, 0x00185aff, 0xcd610000,
0x001862ff, 0xcd810000, 0x00186aff, 0xcda10000,
0x001873ff, 0xcdc20000, 0x00187bff, 0xcde20000,
0x001883ff, 0xd5000000, 0x00188bff, 0xd5200000,
0x001894ff, 0xd5400000, 0x00189cff, 0xd5610000,
0x0018a4ff, 0xd5810000, 0x0018acff, 0xd5a10000,
0x0018b4ff, 0xd5c20000, 0x0018bdff, 0xd5e20000,
0x0018c5ff, 0xde000000, 0x0018cdff, 0xde200000,
0x0018d5ff, 0xde400000, 0x0018deff, 0xde610000,
0x0018e6ff, 0xde810000, 0x0018eeff, 0xdea10000,
0x0018f6ff, 0xdec20000, 0x0018ffff, 0xdee20000,
0x001c00ff, 0xe6000000, 0x001c08ff, 0xe6200000,
0x001c10ff, 0xe6400000, 0x001c18ff, 0xe6610000,
0x001c20ff, 0xe6810000, 0x001c29ff, 0xe6a10000,
0x001c31ff, 0xe6c20000, 0x001c39ff, 0xe6e20000,
0x001c41ff, 0xee000000, 0x001c4aff, 0xee200000,
0x001c52ff, 0xee400000, 0x001c5aff, 0xee610000,
0x001c62ff, 0xee810000, 0x001c6aff, 0xeea10000,
0x001c73ff, 0xeec20000, 0x001c7bff, 0xeee20000,
0x001c83ff, 0xf6000000, 0x001c8bff, 0xf6200000,
0x001c94ff, 0xf6400000, 0x001c9cff, 0xf6610000,
0x001ca4ff, 0xf6810000, 0x001cacff, 0xf6a10000,
0x001cb4ff, 0xf6c20000, 0x001cbdff, 0xf6e20000,
0x001cc5ff, 0xff000000, 0x001ccdff, 0xff200000,
0x001cd5ff, 0xff400000, 0x001cdeff, 0xff610000,
0x001ce6ff, 0xff810000, 0x001ceeff, 0xffa10000,
0x001cf6ff, 0xffc20000, 0x001cffff, 0xffe20000,
};
static void
Blit_RGB565_RGBA8888(SDL_BlitInfo * info)
{
Blit_RGB565_32(info, RGB565_RGBA8888_LUT);
}
/* Special optimized blit for RGB 5-6-5 --> BGRA 8-8-8-8 */
static const Uint32 RGB565_BGRA8888_LUT[512] = {
0x00000000, 0x000000ff, 0x08000000, 0x002000ff,
0x10000000, 0x004000ff, 0x18000000, 0x006100ff,
0x20000000, 0x008100ff, 0x29000000, 0x00a100ff,
0x31000000, 0x00c200ff, 0x39000000, 0x00e200ff,
0x41000000, 0x000008ff, 0x4a000000, 0x002008ff,
0x52000000, 0x004008ff, 0x5a000000, 0x006108ff,
0x62000000, 0x008108ff, 0x6a000000, 0x00a108ff,
0x73000000, 0x00c208ff, 0x7b000000, 0x00e208ff,
0x83000000, 0x000010ff, 0x8b000000, 0x002010ff,
0x94000000, 0x004010ff, 0x9c000000, 0x006110ff,
0xa4000000, 0x008110ff, 0xac000000, 0x00a110ff,
0xb4000000, 0x00c210ff, 0xbd000000, 0x00e210ff,
0xc5000000, 0x000018ff, 0xcd000000, 0x002018ff,
0xd5000000, 0x004018ff, 0xde000000, 0x006118ff,
0xe6000000, 0x008118ff, 0xee000000, 0x00a118ff,
0xf6000000, 0x00c218ff, 0xff000000, 0x00e218ff,
0x00040000, 0x000020ff, 0x08040000, 0x002020ff,
0x10040000, 0x004020ff, 0x18040000, 0x006120ff,
0x20040000, 0x008120ff, 0x29040000, 0x00a120ff,
0x31040000, 0x00c220ff, 0x39040000, 0x00e220ff,
0x41040000, 0x000029ff, 0x4a040000, 0x002029ff,
0x52040000, 0x004029ff, 0x5a040000, 0x006129ff,
0x62040000, 0x008129ff, 0x6a040000, 0x00a129ff,
0x73040000, 0x00c229ff, 0x7b040000, 0x00e229ff,
0x83040000, 0x000031ff, 0x8b040000, 0x002031ff,
0x94040000, 0x004031ff, 0x9c040000, 0x006131ff,
0xa4040000, 0x008131ff, 0xac040000, 0x00a131ff,
0xb4040000, 0x00c231ff, 0xbd040000, 0x00e231ff,
0xc5040000, 0x000039ff, 0xcd040000, 0x002039ff,
0xd5040000, 0x004039ff, 0xde040000, 0x006139ff,
0xe6040000, 0x008139ff, 0xee040000, 0x00a139ff,
0xf6040000, 0x00c239ff, 0xff040000, 0x00e239ff,
0x00080000, 0x000041ff, 0x08080000, 0x002041ff,
0x10080000, 0x004041ff, 0x18080000, 0x006141ff,
0x20080000, 0x008141ff, 0x29080000, 0x00a141ff,
0x31080000, 0x00c241ff, 0x39080000, 0x00e241ff,
0x41080000, 0x00004aff, 0x4a080000, 0x00204aff,
0x52080000, 0x00404aff, 0x5a080000, 0x00614aff,
0x62080000, 0x00814aff, 0x6a080000, 0x00a14aff,
0x73080000, 0x00c24aff, 0x7b080000, 0x00e24aff,
0x83080000, 0x000052ff, 0x8b080000, 0x002052ff,
0x94080000, 0x004052ff, 0x9c080000, 0x006152ff,
0xa4080000, 0x008152ff, 0xac080000, 0x00a152ff,
0xb4080000, 0x00c252ff, 0xbd080000, 0x00e252ff,
0xc5080000, 0x00005aff, 0xcd080000, 0x00205aff,
0xd5080000, 0x00405aff, 0xde080000, 0x00615aff,
0xe6080000, 0x00815aff, 0xee080000, 0x00a15aff,
0xf6080000, 0x00c25aff, 0xff080000, 0x00e25aff,
0x000c0000, 0x000062ff, 0x080c0000, 0x002062ff,
0x100c0000, 0x004062ff, 0x180c0000, 0x006162ff,
0x200c0000, 0x008162ff, 0x290c0000, 0x00a162ff,
0x310c0000, 0x00c262ff, 0x390c0000, 0x00e262ff,
0x410c0000, 0x00006aff, 0x4a0c0000, 0x00206aff,
0x520c0000, 0x00406aff, 0x5a0c0000, 0x00616aff,
0x620c0000, 0x00816aff, 0x6a0c0000, 0x00a16aff,
0x730c0000, 0x00c26aff, 0x7b0c0000, 0x00e26aff,
0x830c0000, 0x000073ff, 0x8b0c0000, 0x002073ff,
0x940c0000, 0x004073ff, 0x9c0c0000, 0x006173ff,
0xa40c0000, 0x008173ff, 0xac0c0000, 0x00a173ff,
0xb40c0000, 0x00c273ff, 0xbd0c0000, 0x00e273ff,
0xc50c0000, 0x00007bff, 0xcd0c0000, 0x00207bff,
0xd50c0000, 0x00407bff, 0xde0c0000, 0x00617bff,
0xe60c0000, 0x00817bff, 0xee0c0000, 0x00a17bff,
0xf60c0000, 0x00c27bff, 0xff0c0000, 0x00e27bff,
0x00100000, 0x000083ff, 0x08100000, 0x002083ff,
0x10100000, 0x004083ff, 0x18100000, 0x006183ff,
0x20100000, 0x008183ff, 0x29100000, 0x00a183ff,
0x31100000, 0x00c283ff, 0x39100000, 0x00e283ff,
0x41100000, 0x00008bff, 0x4a100000, 0x00208bff,
0x52100000, 0x00408bff, 0x5a100000, 0x00618bff,
0x62100000, 0x00818bff, 0x6a100000, 0x00a18bff,
0x73100000, 0x00c28bff, 0x7b100000, 0x00e28bff,
0x83100000, 0x000094ff, 0x8b100000, 0x002094ff,
0x94100000, 0x004094ff, 0x9c100000, 0x006194ff,
0xa4100000, 0x008194ff, 0xac100000, 0x00a194ff,
0xb4100000, 0x00c294ff, 0xbd100000, 0x00e294ff,
0xc5100000, 0x00009cff, 0xcd100000, 0x00209cff,
0xd5100000, 0x00409cff, 0xde100000, 0x00619cff,
0xe6100000, 0x00819cff, 0xee100000, 0x00a19cff,
0xf6100000, 0x00c29cff, 0xff100000, 0x00e29cff,
0x00140000, 0x0000a4ff, 0x08140000, 0x0020a4ff,
0x10140000, 0x0040a4ff, 0x18140000, 0x0061a4ff,
0x20140000, 0x0081a4ff, 0x29140000, 0x00a1a4ff,
0x31140000, 0x00c2a4ff, 0x39140000, 0x00e2a4ff,
0x41140000, 0x0000acff, 0x4a140000, 0x0020acff,
0x52140000, 0x0040acff, 0x5a140000, 0x0061acff,
0x62140000, 0x0081acff, 0x6a140000, 0x00a1acff,
0x73140000, 0x00c2acff, 0x7b140000, 0x00e2acff,
0x83140000, 0x0000b4ff, 0x8b140000, 0x0020b4ff,
0x94140000, 0x0040b4ff, 0x9c140000, 0x0061b4ff,
0xa4140000, 0x0081b4ff, 0xac140000, 0x00a1b4ff,
0xb4140000, 0x00c2b4ff, 0xbd140000, 0x00e2b4ff,
0xc5140000, 0x0000bdff, 0xcd140000, 0x0020bdff,
0xd5140000, 0x0040bdff, 0xde140000, 0x0061bdff,
0xe6140000, 0x0081bdff, 0xee140000, 0x00a1bdff,
0xf6140000, 0x00c2bdff, 0xff140000, 0x00e2bdff,
0x00180000, 0x0000c5ff, 0x08180000, 0x0020c5ff,
0x10180000, 0x0040c5ff, 0x18180000, 0x0061c5ff,
0x20180000, 0x0081c5ff, 0x29180000, 0x00a1c5ff,
0x31180000, 0x00c2c5ff, 0x39180000, 0x00e2c5ff,
0x41180000, 0x0000cdff, 0x4a180000, 0x0020cdff,
0x52180000, 0x0040cdff, 0x5a180000, 0x0061cdff,
0x62180000, 0x0081cdff, 0x6a180000, 0x00a1cdff,
0x73180000, 0x00c2cdff, 0x7b180000, 0x00e2cdff,
0x83180000, 0x0000d5ff, 0x8b180000, 0x0020d5ff,
0x94180000, 0x0040d5ff, 0x9c180000, 0x0061d5ff,
0xa4180000, 0x0081d5ff, 0xac180000, 0x00a1d5ff,
0xb4180000, 0x00c2d5ff, 0xbd180000, 0x00e2d5ff,
0xc5180000, 0x0000deff, 0xcd180000, 0x0020deff,
0xd5180000, 0x0040deff, 0xde180000, 0x0061deff,
0xe6180000, 0x0081deff, 0xee180000, 0x00a1deff,
0xf6180000, 0x00c2deff, 0xff180000, 0x00e2deff,
0x001c0000, 0x0000e6ff, 0x081c0000, 0x0020e6ff,
0x101c0000, 0x0040e6ff, 0x181c0000, 0x0061e6ff,
0x201c0000, 0x0081e6ff, 0x291c0000, 0x00a1e6ff,
0x311c0000, 0x00c2e6ff, 0x391c0000, 0x00e2e6ff,
0x411c0000, 0x0000eeff, 0x4a1c0000, 0x0020eeff,
0x521c0000, 0x0040eeff, 0x5a1c0000, 0x0061eeff,
0x621c0000, 0x0081eeff, 0x6a1c0000, 0x00a1eeff,
0x731c0000, 0x00c2eeff, 0x7b1c0000, 0x00e2eeff,
0x831c0000, 0x0000f6ff, 0x8b1c0000, 0x0020f6ff,
0x941c0000, 0x0040f6ff, 0x9c1c0000, 0x0061f6ff,
0xa41c0000, 0x0081f6ff, 0xac1c0000, 0x00a1f6ff,
0xb41c0000, 0x00c2f6ff, 0xbd1c0000, 0x00e2f6ff,
0xc51c0000, 0x0000ffff, 0xcd1c0000, 0x0020ffff,
0xd51c0000, 0x0040ffff, 0xde1c0000, 0x0061ffff,
0xe61c0000, 0x0081ffff, 0xee1c0000, 0x00a1ffff,
0xf61c0000, 0x00c2ffff, 0xff1c0000, 0x00e2ffff
};
static void
Blit_RGB565_BGRA8888(SDL_BlitInfo * info)
{
Blit_RGB565_32(info, RGB565_BGRA8888_LUT);
}
static void
BlitNto1(SDL_BlitInfo * info)
{
#ifndef USE_DUFFS_LOOP
int c;
#endif
int width, height;
Uint8 *src;
const Uint8 *map;
Uint8 *dst;
int srcskip, dstskip;
int srcbpp;
Uint32 Pixel;
int sR, sG, sB;
SDL_PixelFormat *srcfmt;
/* Set up some basic variables */
width = info->dst_w;
height = info->dst_h;
src = info->src;
srcskip = info->src_skip;
dst = info->dst;
dstskip = info->dst_skip;
map = info->table;
srcfmt = info->src_fmt;
srcbpp = srcfmt->BytesPerPixel;
if (map == NULL) {
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
sR, sG, sB);
if ( 1 ) {
/* Pack RGB into 8bit pixel */
*dst = ((sR>>5)<<(3+2))|
((sG>>5)<<(2)) |
((sB>>6)<<(0)) ;
}
dst++;
src += srcbpp;
, width);
/* *INDENT-ON* */
#else
for (c = width; c; --c) {
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
if (1) {
/* Pack RGB into 8bit pixel */
*dst = ((sR >> 5) << (3 + 2)) |
((sG >> 5) << (2)) | ((sB >> 6) << (0));
}
dst++;
src += srcbpp;
}
#endif
src += srcskip;
dst += dstskip;
}
} else {
while (height--) {
#ifdef USE_DUFFS_LOOP
/* *INDENT-OFF* */
DUFFS_LOOP(
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
sR, sG, sB);
if ( 1 ) {
/* Pack RGB into 8bit pixel */
*dst = map[((sR>>5)<<(3+2))|
((sG>>5)<<(2)) |
((sB>>6)<<(0)) ];
}
dst++;
src += srcbpp;
, width);
/* *INDENT-ON* */
#else
for (c = width; c; --c) {
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
if (1) {
/* Pack RGB into 8bit pixel */
*dst = map[((sR >> 5) << (3 + 2)) |
((sG >> 5) << (2)) | ((sB >> 6) << (0))];
}
dst++;
src += srcbpp;
}
#endif /* USE_DUFFS_LOOP */
src += srcskip;
dst += dstskip;
}
}
}
/* blits 32 bit RGB<->RGBA with both surfaces having the same R,G,B fields */
static void
Blit4to4MaskAlpha(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint32 *src = (Uint32 *) info->src;
int srcskip = info->src_skip;
Uint32 *dst = (Uint32 *) info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
if (dstfmt->Amask) {
/* RGB->RGBA, SET_ALPHA */
Uint32 mask = (info->a >> dstfmt->Aloss) << dstfmt->Ashift;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
*dst = *src | mask;
++dst;
++src;
},
width);
/* *INDENT-ON* */
src = (Uint32 *) ((Uint8 *) src + srcskip);
dst = (Uint32 *) ((Uint8 *) dst + dstskip);
}
} else {
/* RGBA->RGB, NO_ALPHA */
Uint32 mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
*dst = *src & mask;
++dst;
++src;
},
width);
/* *INDENT-ON* */
src = (Uint32 *) ((Uint8 *) src + srcskip);
dst = (Uint32 *) ((Uint8 *) dst + dstskip);
}
}
}
/* blits 32 bit RGBA<->RGBA with both surfaces having the same R,G,B,A fields */
static void
Blit4to4CopyAlpha(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint32 *src = (Uint32 *) info->src;
int srcskip = info->src_skip;
Uint32 *dst = (Uint32 *) info->dst;
int dstskip = info->dst_skip;
/* RGBA->RGBA, COPY_ALPHA */
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
*dst = *src;
++dst;
++src;
},
width);
/* *INDENT-ON* */
src = (Uint32 *) ((Uint8 *) src + srcskip);
dst = (Uint32 *) ((Uint8 *) dst + dstskip);
}
}
static void
BlitNtoN(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
int srcbpp = srcfmt->BytesPerPixel;
SDL_PixelFormat *dstfmt = info->dst_fmt;
int dstbpp = dstfmt->BytesPerPixel;
unsigned alpha = dstfmt->Amask ? info->a : 0;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
Uint32 Pixel;
unsigned sR;
unsigned sG;
unsigned sB;
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
dst += dstbpp;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
static void
BlitNtoNCopyAlpha(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
int srcbpp = srcfmt->BytesPerPixel;
SDL_PixelFormat *dstfmt = info->dst_fmt;
int dstbpp = dstfmt->BytesPerPixel;
int c;
while (height--) {
for (c = width; c; --c) {
Uint32 Pixel;
unsigned sR, sG, sB, sA;
DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
dst += dstbpp;
src += srcbpp;
}
src += srcskip;
dst += dstskip;
}
}
static void
BlitNto1Key(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
const Uint8 *palmap = info->table;
Uint32 ckey = info->colorkey;
Uint32 rgbmask = ~srcfmt->Amask;
int srcbpp;
Uint32 Pixel;
unsigned sR, sG, sB;
/* Set up some basic variables */
srcbpp = srcfmt->BytesPerPixel;
ckey &= rgbmask;
if (palmap == NULL) {
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
sR, sG, sB);
if ( (Pixel & rgbmask) != ckey ) {
/* Pack RGB into 8bit pixel */
*dst = (Uint8)(((sR>>5)<<(3+2))|
((sG>>5)<<(2)) |
((sB>>6)<<(0)));
}
dst++;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
} else {
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
sR, sG, sB);
if ( (Pixel & rgbmask) != ckey ) {
/* Pack RGB into 8bit pixel */
*dst = (Uint8)palmap[((sR>>5)<<(3+2))|
((sG>>5)<<(2)) |
((sB>>6)<<(0)) ];
}
dst++;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
}
static void
Blit2to2Key(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint16 *srcp = (Uint16 *) info->src;
int srcskip = info->src_skip;
Uint16 *dstp = (Uint16 *) info->dst;
int dstskip = info->dst_skip;
Uint32 ckey = info->colorkey;
Uint32 rgbmask = ~info->src_fmt->Amask;
/* Set up some basic variables */
srcskip /= 2;
dstskip /= 2;
ckey &= rgbmask;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
if ( (*srcp & rgbmask) != ckey ) {
*dstp = *srcp;
}
dstp++;
srcp++;
},
width);
/* *INDENT-ON* */
srcp += srcskip;
dstp += dstskip;
}
}
static void
BlitNtoNKey(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
Uint32 ckey = info->colorkey;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
int srcbpp = srcfmt->BytesPerPixel;
int dstbpp = dstfmt->BytesPerPixel;
unsigned alpha = dstfmt->Amask ? info->a : 0;
Uint32 rgbmask = ~srcfmt->Amask;
/* Set up some basic variables */
ckey &= rgbmask;
Fixed bug 4277 - warnings patch Sylvain Patch a few warnings when using: -Wmissing-prototypes -Wdocumentation -Wdocumentation-unknown-command They are automatically enabled with -Wall
2018-09-27 21:56:29 +00:00
/* Fastpath: same source/destination format, no Amask, bpp 32, loop is vectorized. ~10x faster */
if (srcfmt->format == dstfmt->format &&
(srcfmt->format == SDL_PIXELFORMAT_RGB888 || srcfmt->format == SDL_PIXELFORMAT_BGR888)) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
srcskip /= sizeof(Uint32);
dstskip /= sizeof(Uint32);
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
Working on bug 3921 - Add some Fastpath to BlitNtoNKey and BlitNtoNKeyCopyAlpha Sylvain I did various benches. with clang 6.0.0 on linux, and ndk-r16b on android (NDK_TOOLCHAIN_VERSION=clang). - still see a x10 speed factor. - with duff_loops, it does not use vectorisation (but doesn't seem to be a problem). on linux my patch is already at full speed on -O2, whereas the duff_loops need -O3 (200 ms at -03, and 300ms at -02). I realized that on Android, I had a slight variation which fits best. both on linux with -O2 and -O3, and on android with 02/03 and armeabi-v7a/arm64. Here's the patch.
2018-10-01 21:43:03 +00:00
if (*src32 != ckey) {
*dst32 = *src32;
}
Fixed bug 4277 - warnings patch Sylvain Patch a few warnings when using: -Wmissing-prototypes -Wdocumentation -Wdocumentation-unknown-command They are automatically enabled with -Wall
2018-09-27 21:56:29 +00:00
++src32;
++dst32;
},
width);
/* *INDENT-ON* */
src32 += srcskip;
dst32 += dstskip;
}
return;
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
Uint32 Pixel;
unsigned sR;
unsigned sG;
unsigned sB;
RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel);
if ( (Pixel & rgbmask) != ckey ) {
RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB);
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
}
dst += dstbpp;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
static void
BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
Uint32 ckey = info->colorkey;
SDL_PixelFormat *srcfmt = info->src_fmt;
SDL_PixelFormat *dstfmt = info->dst_fmt;
Uint32 rgbmask = ~srcfmt->Amask;
Uint8 srcbpp;
Uint8 dstbpp;
Uint32 Pixel;
unsigned sR, sG, sB, sA;
/* Set up some basic variables */
srcbpp = srcfmt->BytesPerPixel;
dstbpp = dstfmt->BytesPerPixel;
ckey &= rgbmask;
Fixed bug 4277 - warnings patch Sylvain Patch a few warnings when using: -Wmissing-prototypes -Wdocumentation -Wdocumentation-unknown-command They are automatically enabled with -Wall
2018-09-27 21:56:29 +00:00
/* Fastpath: same source/destination format, with Amask, bpp 32, loop is vectorized. ~10x faster */
if (srcfmt->format == dstfmt->format &&
(srcfmt->format == SDL_PIXELFORMAT_ARGB8888 ||
srcfmt->format == SDL_PIXELFORMAT_ABGR8888 ||
srcfmt->format == SDL_PIXELFORMAT_BGRA8888 ||
srcfmt->format == SDL_PIXELFORMAT_RGBA8888)) {
Uint32 *src32 = (Uint32*)src;
Uint32 *dst32 = (Uint32*)dst;
srcskip /= sizeof(Uint32);
dstskip /= sizeof(Uint32);
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
Working on bug 3921 - Add some Fastpath to BlitNtoNKey and BlitNtoNKeyCopyAlpha Sylvain I did various benches. with clang 6.0.0 on linux, and ndk-r16b on android (NDK_TOOLCHAIN_VERSION=clang). - still see a x10 speed factor. - with duff_loops, it does not use vectorisation (but doesn't seem to be a problem). on linux my patch is already at full speed on -O2, whereas the duff_loops need -O3 (200 ms at -03, and 300ms at -02). I realized that on Android, I had a slight variation which fits best. both on linux with -O2 and -O3, and on android with 02/03 and armeabi-v7a/arm64. Here's the patch.
2018-10-01 21:43:03 +00:00
if ((*src32 & rgbmask) != ckey) {
*dst32 = *src32;
}
Fixed bug 4277 - warnings patch Sylvain Patch a few warnings when using: -Wmissing-prototypes -Wdocumentation -Wdocumentation-unknown-command They are automatically enabled with -Wall
2018-09-27 21:56:29 +00:00
++src32;
++dst32;
},
width);
/* *INDENT-ON* */
src32 += srcskip;
dst32 += dstskip;
}
return;
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
if ( (Pixel & rgbmask) != ckey ) {
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
}
dst += dstbpp;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
/* Special optimized blit for ARGB 2-10-10-10 --> RGBA */
static void
Blit2101010toN(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *dstfmt = info->dst_fmt;
int dstbpp = dstfmt->BytesPerPixel;
Uint32 Pixel;
unsigned sR, sG, sB, sA;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
Pixel = *(Uint32 *)src;
RGBA_FROM_ARGB2101010(Pixel, sR, sG, sB, sA);
ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
dst += dstbpp;
src += 4;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
/* Special optimized blit for RGBA --> ARGB 2-10-10-10 */
static void
BlitNto2101010(SDL_BlitInfo * info)
{
int width = info->dst_w;
int height = info->dst_h;
Uint8 *src = info->src;
int srcskip = info->src_skip;
Uint8 *dst = info->dst;
int dstskip = info->dst_skip;
SDL_PixelFormat *srcfmt = info->src_fmt;
int srcbpp = srcfmt->BytesPerPixel;
Uint32 Pixel;
unsigned sR, sG, sB, sA;
while (height--) {
/* *INDENT-OFF* */
DUFFS_LOOP(
{
DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
ARGB2101010_FROM_RGBA(Pixel, sR, sG, sB, sA);
*(Uint32 *)dst = Pixel;
dst += 4;
src += srcbpp;
},
width);
/* *INDENT-ON* */
src += srcskip;
dst += dstskip;
}
}
/* Normal N to N optimized blitters */
Fixed bug 1646 - Warnings from clang with -Weverything
2016-11-15 09:30:08 +00:00
#define NO_ALPHA 1
#define SET_ALPHA 2
#define COPY_ALPHA 4
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
struct blit_table
{
Uint32 srcR, srcG, srcB;
int dstbpp;
Uint32 dstR, dstG, dstB;
Uint32 blit_features;
SDL_BlitFunc blitfunc;
Fixed comment style.
2017-02-26 20:20:39 +00:00
Uint32 alpha; /* bitwise NO_ALPHA, SET_ALPHA, COPY_ALPHA */
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
};
static const struct blit_table normal_blit_1[] = {
/* Default for 8-bit RGB source, never optimized */
{0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
};
static const struct blit_table normal_blit_2[] = {
#if SDL_ALTIVEC_BLITTERS
/* has-altivec */
{0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000,
2, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
{0x00007C00, 0x000003E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000,
2, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
#endif
{0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00FF0000, 0x0000FF00, 0x000000FF,
0, Blit_RGB565_ARGB8888, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
{0x0000F800, 0x000007E0, 0x0000001F, 4, 0x000000FF, 0x0000FF00, 0x00FF0000,
0, Blit_RGB565_ABGR8888, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
{0x0000F800, 0x000007E0, 0x0000001F, 4, 0xFF000000, 0x00FF0000, 0x0000FF00,
0, Blit_RGB565_RGBA8888, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
{0x0000F800, 0x000007E0, 0x0000001F, 4, 0x0000FF00, 0x00FF0000, 0xFF000000,
0, Blit_RGB565_BGRA8888, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
/* Default for 16-bit RGB source, used if no other blitter matches */
{0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
};
static const struct blit_table normal_blit_3[] = {
/* Default for 24-bit RGB source, never optimized */
{0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
};
static const struct blit_table normal_blit_4[] = {
#if SDL_ALTIVEC_BLITTERS
/* has-altivec | dont-use-prefetch */
{0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000, 0x00000000,
6, ConvertAltivec32to32_noprefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
/* has-altivec */
{0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000, 0x00000000,
2, ConvertAltivec32to32_prefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
/* has-altivec */
{0x00000000, 0x00000000, 0x00000000, 2, 0x0000F800, 0x000007E0, 0x0000001F,
2, Blit_RGB888_RGB565Altivec, NO_ALPHA},
#endif
{0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x0000F800, 0x000007E0, 0x0000001F,
0, Blit_RGB888_RGB565, NO_ALPHA},
{0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x00007C00, 0x000003E0, 0x0000001F,
0, Blit_RGB888_RGB555, NO_ALPHA},
/* Default for 32-bit RGB source, used if no other blitter matches */
{0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
};
static const struct blit_table *const normal_blit[] = {
normal_blit_1, normal_blit_2, normal_blit_3, normal_blit_4
};
/* Mask matches table, or table entry is zero */
#define MASKOK(x, y) (((x) == (y)) || ((y) == 0x00000000))
SDL_BlitFunc
SDL_CalculateBlitN(SDL_Surface * surface)
{
SDL_PixelFormat *srcfmt;
SDL_PixelFormat *dstfmt;
const struct blit_table *table;
int which;
SDL_BlitFunc blitfun;
/* Set up data for choosing the blit */
srcfmt = surface->format;
dstfmt = surface->map->dst->format;
/* We don't support destinations less than 8-bits */
if (dstfmt->BitsPerPixel < 8) {
return (NULL);
}
switch (surface->map->info.flags & ~SDL_COPY_RLE_MASK) {
case 0:
blitfun = NULL;
if (dstfmt->BitsPerPixel == 8) {
if ((srcfmt->BytesPerPixel == 4) &&
(srcfmt->Rmask == 0x00FF0000) &&
(srcfmt->Gmask == 0x0000FF00) &&
(srcfmt->Bmask == 0x000000FF)) {
blitfun = Blit_RGB888_index8;
} else if ((srcfmt->BytesPerPixel == 4) &&
(srcfmt->Rmask == 0x3FF00000) &&
(srcfmt->Gmask == 0x000FFC00) &&
(srcfmt->Bmask == 0x000003FF)) {
blitfun = Blit_RGB101010_index8;
} else {
blitfun = BlitNto1;
}
} else {
/* Now the meat, choose the blitter we want */
int a_need = NO_ALPHA;
if (dstfmt->Amask)
a_need = srcfmt->Amask ? COPY_ALPHA : SET_ALPHA;
table = normal_blit[srcfmt->BytesPerPixel - 1];
for (which = 0; table[which].dstbpp; ++which) {
if (MASKOK(srcfmt->Rmask, table[which].srcR) &&
MASKOK(srcfmt->Gmask, table[which].srcG) &&
MASKOK(srcfmt->Bmask, table[which].srcB) &&
MASKOK(dstfmt->Rmask, table[which].dstR) &&
MASKOK(dstfmt->Gmask, table[which].dstG) &&
MASKOK(dstfmt->Bmask, table[which].dstB) &&
dstfmt->BytesPerPixel == table[which].dstbpp &&
(a_need & table[which].alpha) == a_need &&
((table[which].blit_features & GetBlitFeatures()) ==
table[which].blit_features))
break;
}
blitfun = table[which].blitfunc;
if (blitfun == BlitNtoN) { /* default C fallback catch-all. Slow! */
if (srcfmt->format == SDL_PIXELFORMAT_ARGB2101010) {
blitfun = Blit2101010toN;
} else if (dstfmt->format == SDL_PIXELFORMAT_ARGB2101010) {
blitfun = BlitNto2101010;
} else if (srcfmt->BytesPerPixel == 4 &&
dstfmt->BytesPerPixel == 4 &&
srcfmt->Rmask == dstfmt->Rmask &&
srcfmt->Gmask == dstfmt->Gmask &&
srcfmt->Bmask == dstfmt->Bmask) {
if (a_need == COPY_ALPHA) {
if (srcfmt->Amask == dstfmt->Amask) {
/* Fastpath C fallback: 32bit RGBA<->RGBA blit with matching RGBA */
blitfun = Blit4to4CopyAlpha;
} else {
blitfun = BlitNtoNCopyAlpha;
}
} else {
/* Fastpath C fallback: 32bit RGB<->RGBA blit with matching RGB */
blitfun = Blit4to4MaskAlpha;
}
} else if (a_need == COPY_ALPHA) {
blitfun = BlitNtoNCopyAlpha;
}
}
}
return (blitfun);
case SDL_COPY_COLORKEY:
/* colorkey blit: Here we don't have too many options, mostly
because RLE is the preferred fast way to deal with this.
If a particular case turns out to be useful we'll add it. */
if (srcfmt->BytesPerPixel == 2 && surface->map->identity)
return Blit2to2Key;
else if (dstfmt->BytesPerPixel == 1)
return BlitNto1Key;
else {
#if SDL_ALTIVEC_BLITTERS
if ((srcfmt->BytesPerPixel == 4) && (dstfmt->BytesPerPixel == 4)
&& SDL_HasAltiVec()) {
return Blit32to32KeyAltivec;
} else
#endif
if (srcfmt->Amask && dstfmt->Amask) {
return BlitNtoNKeyCopyAlpha;
} else {
return BlitNtoNKey;
}
}
}
return NULL;
}
/* vi: set ts=4 sw=4 expandtab: */
Reference in a new issue Copy permalink