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early-access version 1667

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pineappleEA
2021-05-09 11:30:38 +02:00
parent 5e268d25d7
commit 5dbb928ff2
1069 changed files with 38272 additions and 14437 deletions
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25
externals/SDL/src/video/SDL_blit_slow.c vendored
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@@ -1,6 +1,6 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -40,7 +40,7 @@ SDL_Blit_Slow(SDL_BlitInfo * info)
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
int srcy, srcx;
int posy, posx;
Uint32 posy, posx;
int incy, incx;
SDL_PixelFormat *src_fmt = info->src_fmt;
SDL_PixelFormat *dst_fmt = info->dst_fmt;
@@ -49,30 +49,19 @@ SDL_Blit_Slow(SDL_BlitInfo * info)
Uint32 rgbmask = ~src_fmt->Amask;
Uint32 ckey = info->colorkey & rgbmask;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
posy = incy / 2; /* start at the middle of pixel */
while (info->dst_h--) {
Uint8 *src = 0;
Uint8 *dst = info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
posx = incx / 2; /* start at the middle of pixel */
srcy = posy >> 16;
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src =
(info->src + (srcy * info->src_pitch) + (srcx * srcbpp));
}
srcx = posx >> 16;
src = (info->src + (srcy * info->src_pitch) + (srcx * srcbpp));
if (src_fmt->Amask) {
DISEMBLE_RGBA(src, srcbpp, src_fmt, srcpixel, srcR, srcG,
srcB, srcA);