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view src/video/SDL_blit_N.c @ 4157:baf615f9f2a0 SDL-1.2
Date: Thu, 16 Oct 2008 20:27:34 +0400
From: "Ilya Kasnacheev" <ilya.kasnacheev@gmail.com>
To: sdl@lists.libsdl.org
Subject: [SDL] SDL for Windows CE: a few GAPI patches
Hi *!
I've just ported a POWDER roguelike ( http://www.zincland.com/powder/ ) to
Windows CE (PDAs, Windows Mobile/Pocket PC). To do that, I had to get libsdl
working. Thanks for the awesome project files, it built without a hitch.
Nevertheless, I've found quite a few bugs in Windows CE (GAPI) SDL
implementation, which I've solved and now present as a serie of patches.
I'll try carefully annotate them. Please annotate them so I can work
toward accepting
them into the main source tree since without them SDL isn't really working on
Windows CE (I wonder why nobody fixed them before, btw: why isn't SDL popular as
a way to develop Windows CE games? Where are no ports?)
These changes can't be considered flawless, but they can be considered working
because I've yet to hear complains about things I fixed and POWDER build for
Windows CE is now considered stable.
Note: my comments start with !!, delete them before applying.
diff -bru SDL-1.2.13/src/video/gapi/SDL_gapivideo.c
SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.c
--- SDL-1.2.13/src/video/gapi/SDL_gapivideo.c 2007-12-31
07:48:00.000000000 +0300
+++ SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.c 2008-10-16
20:02:11.000000000 +0400
@@ -643,6 +643,7 @@
}
gapi->userOrientation = SDL_ORIENTATION_UP;
+ gapi->systemOrientation = SDL_ORIENTATION_UP;
video->flags = SDL_FULLSCREEN; /* Clear flags, GAPI supports
fullscreen only */
/* GAPI or VGA? */
@@ -661,18 +662,21 @@
}
/* detect user landscape mode */
- if( (width > height) && (GetSystemMetrics(SM_CXSCREEN) <
GetSystemMetrics(SM_CYSCREEN)))
+ if( (width > height) && (gapi->gxProperties.cxWidth <
gapi->gxProperties.cyHeight))
gapi->userOrientation = SDL_ORIENTATION_RIGHT;
+ if(GetSystemMetrics(SM_CYSCREEN) < GetSystemMetrics(SM_CXSCREEN))
+ gapi->systemOrientation = SDL_ORIENTATION_RIGHT;
+
/* shall we apply hires fix? for example when we do not use
hires resource */
gapi->hiresFix = 0;
- if( gapi->userOrientation == SDL_ORIENTATION_RIGHT )
+ if( gapi->systemOrientation == gapi->userOrientation )
{
- if( (width > GetSystemMetrics(SM_CYSCREEN)) || (height
> GetSystemMetrics(SM_CXSCREEN)))
+ if( (width > GetSystemMetrics(SM_CXSCREEN)) || (height
> GetSystemMetrics(SM_CYSCREEN)))
gapi->hiresFix = 1;
} else
- if( (width > GetSystemMetrics(SM_CXSCREEN)) || (height
> GetSystemMetrics(SM_CYSCREEN)))
- if( !((width == GetSystemMetrics(SM_CYSCREEN))
&& (height == GetSystemMetrics(SM_CXSCREEN)))) // user portrait,
device landscape
+ if( (width > GetSystemMetrics(SM_CYSCREEN)) || (height
> GetSystemMetrics(SM_CXSCREEN)))
+// if( !((width == gapi->gxProperties.cyHeight)
&& (height == gapi->gxProperties.cxWidth))) // user portrait, device
landscape
gapi->hiresFix = 1;
switch( gapi->userOrientation )
!! It used to query system metrics which return dimensions according to screen
!! orientation, which can really be portrait, left landscape or right landscape.
!! This is presumably incorrect because we couldn't care less about user mode
!! dimensions - all we want are the GAPI framebuffer dimensions, which
only match
!! user dimensions in one of possible orientations.
!! There's a fair dose of cargo cult programming involved in this fix, but it
!! used to work only in one orientation (portrait for PDAs, where frame-buffer
!! have same orientation as user screen), and now it works on all orientations.
@@ -742,21 +746,30 @@
WIN_FlushMessageQueue();
/* Open GAPI display */
- if( !gapi->useVga && this->hidden->useGXOpenDisplay )
+ if( !gapi->useVga && this->hidden->useGXOpenDisplay &&
!this->hidden->alreadyGXOpened )
+ {
+ this->hidden->alreadyGXOpened = 1;
if( !gapi->gxFunc.GXOpenDisplay(SDL_Window, GX_FULLSCREEN) )
{
SDL_SetError("Couldn't initialize GAPI");
return(NULL);
}
+ }
#if REPORT_VIDEO_INFO
printf("Video properties:\n");
printf("display bpp: %d\n", gapi->gxProperties.cBPP);
printf("display width: %d\n", gapi->gxProperties.cxWidth);
printf("display height: %d\n", gapi->gxProperties.cyHeight);
+ printf("system display width: %d\n", GetSystemMetrics(SM_CXSCREEN));
+ printf("system display height: %d\n", GetSystemMetrics(SM_CYSCREEN));
printf("x pitch: %d\n", gapi->gxProperties.cbxPitch);
printf("y pitch: %d\n", gapi->gxProperties.cbyPitch);
printf("gapi flags: 0x%x\n", gapi->gxProperties.ffFormat);
+ printf("user orientation: %d\n", gapi->userOrientation);
+ printf("system orientation: %d\n", gapi->userOrientation);
+ printf("gapi orientation: %d\n", gapi->gapiOrientation);
+
if( !gapi->useVga && this->hidden->useGXOpenDisplay && gapi->needUpdate)
{
!! Previous version used to call gapi->gxFunc.GXOpenDisplay each time the video
!! mode would be changed. You shouldn't, because this call has a
meaning "Lock the
!! GAPI framebuffer, designate it as busy", so the second call will fail (it is
!! already locked/busy).
!! Testing might not find that because most programs set up the video mode only
!! once, but POWDER does this once in a while, so it crashed when in
320x240 mode
!! (640x480 mode doesn't use that code, it worked fine).
diff -bru SDL-1.2.13/src/video/gapi/SDL_gapivideo.h
SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.h
--- SDL-1.2.13/src/video/gapi/SDL_gapivideo.h 2007-12-31
07:48:00.000000000 +0300
+++ SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.h 2008-10-16
20:02:11.000000000 +0400
@@ -132,12 +132,17 @@
#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
int SDL_nummodes[NUM_MODELISTS];
SDL_Rect **SDL_modelist[NUM_MODELISTS];
+ // The orientation of the video mode user wants to get
+ // Probably restricted to UP and RIGHT
enum SDL_ScreenOrientation userOrientation;
int invert;
char hiresFix; // using hires mode without defining hires resource
// --------------
int useGXOpenDisplay; /* use GXOpenDispplay */
+ int alreadyGXOpened;
int w, h;
+ // The orientation of GAPI framebuffer.
+ // Never changes on the same device.
enum SDL_ScreenOrientation gapiOrientation;
void *buffer; // may be 8, 16, 24, 32 bpp
@@ -153,6 +158,10 @@
int startOffset; // in bytes
int useVga;
int suspended; // do not pu anything into video memory
+ // The orientation of the system, as defined by SM_CXSCREEN
and SM_CYSCREEN
+ // User can change it by using 'screen layout' in system options
+ // Restricted to UP or RIGHT
+ enum SDL_ScreenOrientation systemOrientation;
};
!! This is a flag variable, see the previous comment
!! And yet another orientation: now we have to keep three of them in mind.
diff -bru SDL-1.2.13/src/video/wincommon/SDL_sysevents.c
SDL-1.2.13-new/src/video/wincommon/SDL_sysevents.c
--- SDL-1.2.13/src/video/wincommon/SDL_sysevents.c 2007-12-31
07:48:02.000000000 +0300
+++ SDL-1.2.13-new/src/video/wincommon/SDL_sysevents.c 2008-10-16
20:02:12.000000000 +0400
@@ -160,10 +160,22 @@
#endif */
}
break;
+ // FIXME: Older version used just SDL_VideoSurface->(w, h)
+ // w and h are "clipped" while x and y are "raw", which caused
+ // x in former and y in latter case to be clipped in a
wrong direction,
+ // thus offsetting the coordinate on 2 x clip pixels
+ // (like, 128 for 640 -> 512 clipping).
+ // We will now try to extract and use raw values.
+ // The way to do that RIGHT is do
(orientation-dependent) clipping before
+ // doing this transform, but it's hardly possible.
+
+ // SEE SDL_mouse.c /ClipOffset to understand these calculations.
case SDL_ORIENTATION_RIGHT:
if (!SDL_VideoSurface)
break;
- rotatedX = SDL_VideoSurface->w - *y;
+ rotatedX = (2 *
((SDL_VideoSurface->offset%SDL_VideoSurface->pitch)/
+ SDL_VideoSurface->format->BytesPerPixel))
+ + SDL_VideoSurface->w - *y;
rotatedY = *x;
*x = rotatedX;
*y = rotatedY;
@@ -172,7 +184,8 @@
if (!SDL_VideoSurface)
break;
rotatedX = *y;
- rotatedY = SDL_VideoSurface->h - *x;
+ rotatedY = (2 *
(SDL_VideoSurface->offset/SDL_VideoSurface->pitch))
+ + SDL_VideoSurface->h - *x;
*x = rotatedX;
*y = rotatedY;
break;
!! That's the trickest part, hence the long comment.
!! GAPI would really support only 320x240 or 640x480 mode, if application
!! requested the different screen size (as POWDER did, wishing
256x192), then SDL
!! is going to grab the first mode that fits the requested, and pad the screen
!! with black bars (as they do with wide-screen films).
!! It would also get, say, 240x320 mode, and to turn it into 256x192 it would
!! need to rotate mouse clicks.
!! It worked, but one bug slipped through: it would receive mouse clicks
!! unpadded, then rotate them, and then pad the black bars. The
problem is: rotate
!! is done by GAPI driver while padding is done by SDL core. SDL core
doesn't know
!! anything about rotating, so it would pad one of dimensions incorrectly.
I understand that some of my claims (or code) might seem unbacked, but you can
always grab the POWDER binary, compile your own libsdl with one or more of
those fixes turned off, and see how weird it would misbehave. I can even supply
you with those custom builds of libsdl if you don't want to set up the build
environment for windows ce, you'll just need a PDA or a smartphone with it.
I plan to take care of SDL on Windows CE as long as I maintain the POWDER port.
POWDER is good for that because it:
Employs both padded (with centered image, black bars) and unpadded
(image occupies full screen) graphics; initializes video more than
once; uses both 320x240 and 640x480 video; uses both stylus and
buttons.
There's still a list of unresolved issues which I'm planning to fix:
1) Arrow buttons on PDA return weird scancodes compared to PC, this
caused the game to misbehave before I've fixed that. You can see it on
those diagrams:
http://wrar.name/upload/powder-htc.png
http://wrar.name/upload/powder-pda.png
2) SDL (or underlying windows) doesn't care to rotate arrow presses
when we're in a low-res GAPI mode, but it will rotate them in VGA mode
(because of different screen orientations, the same arrow buttons can
suddently mean different directions). Solution: we should stick to
GAPI user orientation (the orientation the program supposedly wants)
and rotate the keys on our own.
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 07 Nov 2008 04:15:36 +0000 |
| parents | 398ac0f88e4d |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
line wrap: on
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_video.h" #include "SDL_endian.h" #include "SDL_cpuinfo.h" #include "SDL_blit.h" /* Functions to blit from N-bit surfaces to other surfaces */ #if SDL_ALTIVEC_BLITTERS #if __MWERKS__ #pragma altivec_model on #endif #ifdef HAVE_ALTIVEC_H #include <altivec.h> #endif #define assert(X) #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 struct SDL_PixelFormat default_pixel_format = { NULL, 0, 0, 0, 0, 0, 0, 16, 8, 0, 24, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, 0, 0}; if (!srcfmt) { srcfmt = &default_pixel_format; } if (!dstfmt) { dstfmt = &default_pixel_format; } 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; #define RESHIFT(X) (3 - ((X) >> 3)) Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); Uint32 amask; /* 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 ((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->d_height; Uint8 *src = (Uint8 *) info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = (Uint8 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; 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->d_width; 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; } 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->d_height; Uint8 *src = (Uint8 *) info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = (Uint8 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; 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)) ); assert(srcfmt->BytesPerPixel == 2); assert(dstfmt->BytesPerPixel == 4); vf800 = (vector unsigned short)vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); if (dstfmt->Amask && srcfmt->alpha) { ((unsigned char *)&valpha)[0] = alpha = srcfmt->alpha; 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->d_width; 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; } 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->d_height; Uint8 *src = (Uint8 *) info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = (Uint8 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; 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)) ); assert(srcfmt->BytesPerPixel == 2); assert(dstfmt->BytesPerPixel == 4); vf800 = (vector unsigned short)vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); if (dstfmt->Amask && srcfmt->alpha) { ((unsigned char *)&valpha)[0] = alpha = srcfmt->alpha; 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->d_width; 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; } 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->d_height; Uint32 *srcp = (Uint32 *) info->s_pixels; int srcskip = info->s_skip; Uint32 *dstp = (Uint32 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst; int dstbpp = dstfmt->BytesPerPixel; int copy_alpha = (srcfmt->Amask && dstfmt->Amask); unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0; Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; Uint32 ckey = info->src->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->d_width < 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->d_width; ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); 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; 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 >> 2; dstp += dstskip >> 2; } } } /* 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->d_height; Uint32 *src = (Uint32 *) info->s_pixels; int srcskip = info->s_skip; Uint32 *dst = (Uint32 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; vector unsigned int vzero = vec_splat_u32(0); vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); if (dstfmt->Amask && !srcfmt->Amask) { if (srcfmt->alpha) { vector unsigned char valpha; ((unsigned char *)&valpha)[0] = srcfmt->alpha; vzero = (vector unsigned int)vec_splat(valpha, 0); } } assert(srcfmt->BytesPerPixel == 4); 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->d_width; int extrawidth; /* do scalar until we can align... */ while ((UNALIGNED_PTR(dst)) && (width)) { bits = *(src++); RGBA_FROM_8888(bits, srcfmt, r, g, b, 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; } 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); *(dst++) = MAKE8888(dstfmt, r, g, b, a); extrawidth--; } src += srcskip >> 2; /* move to next row, accounting for pitch. */ dst += dstskip >> 2; } } /* 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->d_height; Uint32 *src = (Uint32 *) info->s_pixels; int srcskip = info->s_skip; Uint32 *dst = (Uint32 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; vector unsigned int vzero = vec_splat_u32(0); vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); if (dstfmt->Amask && !srcfmt->Amask) { if (srcfmt->alpha) { vector unsigned char valpha; ((unsigned char *)&valpha)[0] = srcfmt->alpha; vzero = (vector unsigned int)vec_splat(valpha, 0); } } assert(srcfmt->BytesPerPixel == 4); 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->d_width; 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); *(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; } 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); *(dst++) = MAKE8888(dstfmt, r, g, b, a); extrawidth--; } src += srcskip >> 2; /* move to next row, accounting for pitch. */ dst += dstskip >> 2; } 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 #if SDL_HERMES_BLITTERS /* Heheheh, we coerce Hermes into using SDL blit information */ #define X86_ASSEMBLER #define HermesConverterInterface SDL_BlitInfo #define HermesClearInterface void #define STACKCALL #include "../hermes/HeadMMX.h" #include "../hermes/HeadX86.h" #else /* 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->d_width; height = info->d_height; src = (Uint32 *)info->s_pixels; srcskip = info->s_skip/4; dst = info->d_pixels; dstskip = info->d_skip; map = info->table; if ( map == NULL ) { while ( height-- ) { #ifdef USE_DUFFS_LOOP DUFFS_LOOP( RGB888_RGB332(*dst++, *src); , width); #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 DUFFS_LOOP( RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; , width); #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 8-8-8 --> RGB 5-5-5 */ #define RGB888_RGB555(dst, src) { \ *(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>9)| \ (((*src)&0x0000F800)>>6)| \ (((*src)&0x000000F8)>>3)); \ } #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); \ } 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->d_width; height = info->d_height; src = (Uint32 *)info->s_pixels; srcskip = info->s_skip/4; dst = (Uint16 *)info->d_pixels; dstskip = info->d_skip/2; #ifdef USE_DUFFS_LOOP while ( height-- ) { DUFFS_LOOP( RGB888_RGB555(dst, src); ++src; ++dst; , width); 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)); \ } #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); \ } 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->d_width; height = info->d_height; src = (Uint32 *)info->s_pixels; srcskip = info->s_skip/4; dst = (Uint16 *)info->d_pixels; dstskip = info->d_skip/2; #ifdef USE_DUFFS_LOOP while ( height-- ) { DUFFS_LOOP( RGB888_RGB565(dst, src); ++src; ++dst; , width); 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 */ } #endif /* SDL_HERMES_BLITTERS */ /* 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->d_width; height = info->d_height; src = (Uint8 *)info->s_pixels; srcskip = info->s_skip; dst = (Uint32 *)info->d_pixels; dstskip = info->d_skip/4; #ifdef USE_DUFFS_LOOP while ( height-- ) { DUFFS_LOOP( { *dst++ = RGB565_32(dst, src, map); src += 2; }, width); 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); } /* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */ #ifndef RGB888_RGB332 #define RGB888_RGB332(dst, src) { \ dst = (((src)&0x00E00000)>>16)| \ (((src)&0x0000E000)>>11)| \ (((src)&0x000000C0)>>6); \ } #endif static void Blit_RGB888_index8_map(SDL_BlitInfo *info) { #ifndef USE_DUFFS_LOOP int c; #endif int Pixel; int width, height; Uint32 *src; const Uint8 *map; Uint8 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->d_width; height = info->d_height; src = (Uint32 *)info->s_pixels; srcskip = info->s_skip/4; dst = info->d_pixels; dstskip = info->d_skip; map = info->table; #ifdef USE_DUFFS_LOOP while ( height-- ) { DUFFS_LOOP( RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; , width); src += srcskip; dst += dstskip; } #else while ( height-- ) { 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; } src += srcskip; dst += dstskip; } #endif /* USE_DUFFS_LOOP */ } 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->d_width; height = info->d_height; src = info->s_pixels; srcskip = info->s_skip; dst = info->d_pixels; dstskip = info->d_skip; map = info->table; srcfmt = info->src; srcbpp = srcfmt->BytesPerPixel; if ( map == NULL ) { while ( height-- ) { #ifdef USE_DUFFS_LOOP 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); #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 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); #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->d_width; int height = info->d_height; Uint32 *src = (Uint32 *)info->s_pixels; int srcskip = info->s_skip; Uint32 *dst = (Uint32 *)info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; if (dstfmt->Amask) { /* RGB->RGBA, SET_ALPHA */ Uint32 mask = (srcfmt->alpha >> dstfmt->Aloss) << dstfmt->Ashift; while ( height-- ) { DUFFS_LOOP( { *dst = *src | mask; ++dst; ++src; }, width); 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-- ) { DUFFS_LOOP( { *dst = *src & mask; ++dst; ++src; }, width); src = (Uint32*)((Uint8*)src + srcskip); dst = (Uint32*)((Uint8*)dst + dstskip); } } } static void BlitNtoN(SDL_BlitInfo *info) { int width = info->d_width; int height = info->d_height; Uint8 *src = info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst; int dstbpp = dstfmt->BytesPerPixel; unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0; while ( height-- ) { 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); src += srcskip; dst += dstskip; } } static void BlitNtoNCopyAlpha(SDL_BlitInfo *info) { int width = info->d_width; int height = info->d_height; Uint8 *src = info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst; int dstbpp = dstfmt->BytesPerPixel; int c; /* FIXME: should map alpha to [0..255] correctly! */ 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->d_width; int height = info->d_height; Uint8 *src = info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; const Uint8 *palmap = info->table; Uint32 ckey = srcfmt->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-- ) { 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); src += srcskip; dst += dstskip; } } else { while ( height-- ) { 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); src += srcskip; dst += dstskip; } } } static void Blit2to2Key(SDL_BlitInfo *info) { int width = info->d_width; int height = info->d_height; Uint16 *srcp = (Uint16 *)info->s_pixels; int srcskip = info->s_skip; Uint16 *dstp = (Uint16 *)info->d_pixels; int dstskip = info->d_skip; Uint32 ckey = info->src->colorkey; Uint32 rgbmask = ~info->src->Amask; /* Set up some basic variables */ srcskip /= 2; dstskip /= 2; ckey &= rgbmask; while ( height-- ) { DUFFS_LOOP( { if ( (*srcp & rgbmask) != ckey ) { *dstp = *srcp; } dstp++; srcp++; }, width); srcp += srcskip; dstp += dstskip; } } static void BlitNtoNKey(SDL_BlitInfo *info) { int width = info->d_width; int height = info->d_height; Uint8 *src = info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = info->d_pixels; int dstskip = info->d_skip; Uint32 ckey = info->src->colorkey; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; int srcbpp = srcfmt->BytesPerPixel; int dstbpp = dstfmt->BytesPerPixel; unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0; Uint32 rgbmask = ~srcfmt->Amask; /* Set up some basic variables */ ckey &= rgbmask; while ( height-- ) { 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); src += srcskip; dst += dstskip; } } static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info) { int width = info->d_width; int height = info->d_height; Uint8 *src = info->s_pixels; int srcskip = info->s_skip; Uint8 *dst = info->d_pixels; int dstskip = info->d_skip; Uint32 ckey = info->src->colorkey; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; 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; /* FIXME: should map alpha to [0..255] correctly! */ while ( height-- ) { 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); src += srcskip; dst += dstskip; } } /* Normal N to N optimized blitters */ struct blit_table { Uint32 srcR, srcG, srcB; int dstbpp; Uint32 dstR, dstG, dstB; Uint32 blit_features; void *aux_data; SDL_loblit blitfunc; enum { NO_ALPHA=1, SET_ALPHA=2, COPY_ALPHA=4 } alpha; }; static const struct blit_table normal_blit_1[] = { /* Default for 8-bit RGB source, an invalid combination */ { 0,0,0, 0, 0,0,0, 0, NULL, NULL }, }; static const struct blit_table normal_blit_2[] = { #if SDL_HERMES_BLITTERS { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000007E0,0x0000F800, 0, ConvertX86p16_16BGR565, ConvertX86, NO_ALPHA }, { 0x0000F800,0x000007E0,0x0000001F, 2, 0x00007C00,0x000003E0,0x0000001F, 0, ConvertX86p16_16RGB555, ConvertX86, NO_ALPHA }, { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000003E0,0x00007C00, 0, ConvertX86p16_16BGR555, ConvertX86, NO_ALPHA }, #elif SDL_ALTIVEC_BLITTERS /* has-altivec */ { 0x0000F800,0x000007E0,0x0000001F, 4, 0x00000000,0x00000000,0x00000000, 2, NULL, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA }, { 0x00007C00,0x000003E0,0x0000001F, 4, 0x00000000,0x00000000,0x00000000, 2, NULL, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA }, #endif { 0x0000F800,0x000007E0,0x0000001F, 4, 0x00FF0000,0x0000FF00,0x000000FF, 0, NULL, Blit_RGB565_ARGB8888, SET_ALPHA }, { 0x0000F800,0x000007E0,0x0000001F, 4, 0x000000FF,0x0000FF00,0x00FF0000, 0, NULL, Blit_RGB565_ABGR8888, SET_ALPHA }, { 0x0000F800,0x000007E0,0x0000001F, 4, 0xFF000000,0x00FF0000,0x0000FF00, 0, NULL, Blit_RGB565_RGBA8888, SET_ALPHA }, { 0x0000F800,0x000007E0,0x0000001F, 4, 0x0000FF00,0x00FF0000,0xFF000000, 0, NULL, Blit_RGB565_BGRA8888, SET_ALPHA }, /* Default for 16-bit RGB source, used if no other blitter matches */ { 0,0,0, 0, 0,0,0, 0, NULL, 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, NULL, BlitNtoN, 0 } }; static const struct blit_table normal_blit_4[] = { #if SDL_HERMES_BLITTERS { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F, 1, ConvertMMXpII32_16RGB565, ConvertMMX, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F, 0, ConvertX86p32_16RGB565, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800, 1, ConvertMMXpII32_16BGR565, ConvertMMX, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800, 0, ConvertX86p32_16BGR565, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F, 1, ConvertMMXpII32_16RGB555, ConvertMMX, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F, 0, ConvertX86p32_16RGB555, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00, 1, ConvertMMXpII32_16BGR555, ConvertMMX, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00, 0, ConvertX86p32_16BGR555, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x00FF0000,0x0000FF00,0x000000FF, 0, ConvertX86p32_24RGB888, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x000000FF,0x0000FF00,0x00FF0000, 0, ConvertX86p32_24BGR888, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x000000FF,0x0000FF00,0x00FF0000, 0, ConvertX86p32_32BGR888, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0xFF000000,0x00FF0000,0x0000FF00, 0, ConvertX86p32_32RGBA888, ConvertX86, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x0000FF00,0x00FF0000,0xFF000000, 0, ConvertX86p32_32BGRA888, ConvertX86, NO_ALPHA }, #else #if SDL_ALTIVEC_BLITTERS /* has-altivec | dont-use-prefetch */ { 0x00000000,0x00000000,0x00000000, 4, 0x00000000,0x00000000,0x00000000, 6, NULL, ConvertAltivec32to32_noprefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA }, /* has-altivec */ { 0x00000000,0x00000000,0x00000000, 4, 0x00000000,0x00000000,0x00000000, 2, NULL, ConvertAltivec32to32_prefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA }, /* has-altivec */ { 0x00000000,0x00000000,0x00000000, 2, 0x0000F800,0x000007E0,0x0000001F, 2, NULL, Blit_RGB888_RGB565Altivec, NO_ALPHA }, #endif { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F, 0, NULL, Blit_RGB888_RGB565, NO_ALPHA }, { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F, 0, NULL, Blit_RGB888_RGB555, NO_ALPHA }, #endif /* Default for 32-bit RGB source, used if no other blitter matches */ { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 } }; static const struct blit_table *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_loblit SDL_CalculateBlitN(SDL_Surface *surface, int blit_index) { struct private_swaccel *sdata; SDL_PixelFormat *srcfmt; SDL_PixelFormat *dstfmt; const struct blit_table *table; int which; SDL_loblit blitfun; /* Set up data for choosing the blit */ sdata = surface->map->sw_data; srcfmt = surface->format; dstfmt = surface->map->dst->format; if ( blit_index & 2 ) { /* alpha or alpha+colorkey */ return SDL_CalculateAlphaBlit(surface, blit_index); } /* We don't support destinations less than 8-bits */ if ( dstfmt->BitsPerPixel < 8 ) { return(NULL); } if(blit_index == 1) { /* 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; } } blitfun = NULL; if ( dstfmt->BitsPerPixel == 8 ) { /* We assume 8-bit destinations are palettized */ if ( (srcfmt->BytesPerPixel == 4) && (srcfmt->Rmask == 0x00FF0000) && (srcfmt->Gmask == 0x0000FF00) && (srcfmt->Bmask == 0x000000FF) ) { if ( surface->map->table ) { blitfun = Blit_RGB888_index8_map; } else { #if SDL_HERMES_BLITTERS sdata->aux_data = ConvertX86p32_8RGB332; blitfun = ConvertX86; #else blitfun = Blit_RGB888_index8; #endif } } 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; } sdata->aux_data = table[which].aux_data; blitfun = table[which].blitfunc; if(blitfun == BlitNtoN) { /* default C fallback catch-all. Slow! */ /* Fastpath C fallback: 32bit RGB<->RGBA blit with matching RGB */ if ( srcfmt->BytesPerPixel == 4 && dstfmt->BytesPerPixel == 4 && srcfmt->Rmask == dstfmt->Rmask && srcfmt->Gmask == dstfmt->Gmask && srcfmt->Bmask == dstfmt->Bmask ) { blitfun = Blit4to4MaskAlpha; } else if ( a_need == COPY_ALPHA ) { blitfun = BlitNtoNCopyAlpha; } } } #ifdef DEBUG_ASM #if SDL_HERMES_BLITTERS if ( blitfun == ConvertMMX ) fprintf(stderr, "Using mmx blit\n"); else if ( blitfun == ConvertX86 ) fprintf(stderr, "Using asm blit\n"); else #endif if ( (blitfun == BlitNtoN) || (blitfun == BlitNto1) ) fprintf(stderr, "Using C blit\n"); else fprintf(stderr, "Using optimized C blit\n"); #endif /* DEBUG_ASM */ return(blitfun); }