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Diffstat (limited to 'src/resources/sdlrescalefacility.cpp')
-rw-r--r--src/resources/sdlrescalefacility.cpp105
1 files changed, 65 insertions, 40 deletions
diff --git a/src/resources/sdlrescalefacility.cpp b/src/resources/sdlrescalefacility.cpp
index 49ba8aa4..82c1216c 100644
--- a/src/resources/sdlrescalefacility.cpp
+++ b/src/resources/sdlrescalefacility.cpp
@@ -43,24 +43,22 @@ void zoomSurfaceSize(int width, int height, double zoomx, double zoomy,
/*
* Sanity check zoom factors
*/
- if (zoomx < VALUE_LIMIT) {
+ if (zoomx < VALUE_LIMIT)
zoomx = VALUE_LIMIT;
- }
- if (zoomy < VALUE_LIMIT) {
+
+ if (zoomy < VALUE_LIMIT)
zoomy = VALUE_LIMIT;
- }
/*
* Calculate target size
*/
*dstwidth = (int) ((double) width * zoomx);
*dstheight = (int) ((double) height * zoomy);
- if (*dstwidth < 1) {
+ if (*dstwidth < 1)
*dstwidth = 1;
- }
- if (*dstheight < 1) {
+
+ if (*dstheight < 1)
*dstheight = 1;
- }
}
int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
@@ -74,7 +72,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
/*
* Variable setup
*/
- if (smooth) {
+ if (smooth)
+ {
/*
* For interpolation: assume source dimension is one pixel
*/
@@ -83,7 +82,9 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
*/
sx = (int) (65536.0 * (float) (src->w - 1) / (float) dst->w);
sy = (int) (65536.0 * (float) (src->h - 1) / (float) dst->h);
- } else {
+ }
+ else
+ {
sx = (int) (65536.0 * (float) src->w / (float) dst->w);
sy = (int) (65536.0 * (float) src->h / (float) dst->h);
}
@@ -91,10 +92,10 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
/*
* Allocate memory for row increments
*/
- if ((sax = (int *) malloc((dst->w + 1) * sizeof(Uint32))) == NULL) {
+ if ((sax = (int *) malloc((dst->w + 1) * sizeof(Uint32))) == NULL)
return (-1);
- }
- if ((say = (int *) malloc((dst->h + 1) * sizeof(Uint32))) == NULL) {
+ if ((say = (int *) malloc((dst->h + 1) * sizeof(Uint32))) == NULL)
+ {
free(sax);
return (-1);
}
@@ -110,7 +111,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
csx = 0;
csax = sax;
- for (x = 0; x <= dst->w; x++) {
+ for (x = 0; x <= dst->w; x++)
+ {
*csax = csx;
csax++;
csx &= 0xffff;
@@ -118,7 +120,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
}
csy = 0;
csay = say;
- for (y = 0; y <= dst->h; y++) {
+ for (y = 0; y <= dst->h; y++)
+ {
*csay = csy;
csay++;
csy &= 0xffff;
@@ -130,7 +133,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
/*
* Switch between interpolating and non-interpolating code
*/
- if (smooth) {
+ if (smooth)
+ {
/*
* Interpolating Zoom
@@ -141,7 +145,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
*/
ly = 0;
csay = say;
- for (y = 0; y < dst->h; y++) {
+ for (y = 0; y < dst->h; y++)
+ {
/*
* Setup color source pointers
*/
@@ -152,16 +157,19 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
c11 = c10;
c11++;
csax = sax;
- if (flipx) {
+ if (flipx)
+ {
cswap = c00; c00=c01; c01=cswap;
cswap = c10; c10=c11; c11=cswap;
}
- if (flipy) {
+ if (flipy)
+ {
cswap = c00; c00=c10; c10=cswap;
cswap = c01; c01=c11; c11=cswap;
}
lx = 0;
- for (x = 0; x < dst->w; x++) {
+ for (x = 0; x < dst->w; x++)
+ {
/*
* Interpolate colors
*/
@@ -213,17 +221,20 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface * dst,
*/
dp = (tColorRGBA *) ((Uint8 *) dp + dgap);
}
- } else {
-
+ }
+ else
+ {
/*
* Non-Interpolating Zoom
*/
csay = say;
- for (y = 0; y < dst->h; y++) {
+ for (y = 0; y < dst->h; y++)
+ {
sp = csp;
csax = sax;
- for (x = 0; x < dst->w; x++) {
+ for (x = 0; x < dst->w; x++)
+ {
/*
* Draw
*/
@@ -283,10 +294,11 @@ int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst, int flipx, int flipy)
/*
* Allocate memory for row increments
*/
- if ((sax = (Uint32 *) malloc((dst->w + 1) * sizeof(Uint32))) == NULL) {
+ if ((sax = (Uint32 *) malloc((dst->w + 1) * sizeof(Uint32))) == NULL)
return (-1);
- }
- if ((say = (Uint32 *) malloc((dst->h + 1) * sizeof(Uint32))) == NULL) {
+
+ if ((say = (Uint32 *) malloc((dst->h + 1) * sizeof(Uint32))) == NULL)
+ {
free(sax);
return (-1);
}
@@ -306,7 +318,8 @@ int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst, int flipx, int flipy)
*/
csx = 0;
csax = sax;
- for (x = 0; x <= dst->w; x++) {
+ for (x = 0; x <= dst->w; x++)
+ {
*csax = csx;
csax++;
csx &= 0xffff;
@@ -314,7 +327,8 @@ int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst, int flipx, int flipy)
}
csy = 0;
csay = say;
- for (y = 0; y <= dst->h; y++) {
+ for (y = 0; y <= dst->h; y++)
+ {
*csay = csy;
csay++;
csy &= 0xffff;
@@ -326,10 +340,12 @@ int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst, int flipx, int flipy)
* Draw
*/
csay = say;
- for (y = 0; y < dst->h; y++) {
+ for (y = 0; y < dst->h; y++)
+ {
csax = sax;
sp = csp;
- for (x = 0; x < dst->w; x++) {
+ for (x = 0; x < dst->w; x++)
+ {
/*
* Draw
*/
@@ -390,13 +406,16 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
* Determine if source surface is 32bit or 8bit
*/
is32bit = (src->format->BitsPerPixel == 32);
- if ((is32bit) || (src->format->BitsPerPixel == 8)) {
+ if ((is32bit) || (src->format->BitsPerPixel == 8))
+ {
/*
* Use source surface 'as is'
*/
rz_src = src;
src_converted = 0;
- } else {
+ }
+ else
+ {
/*
* New source surface is 32bit with a defined RGBA ordering
*/
@@ -425,7 +444,8 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
* Alloc space to completely contain the zoomed surface
*/
rz_dst = NULL;
- if (is32bit) {
+ if (is32bit)
+ {
/*
* Target surface is 32bit with source RGBA/ABGR ordering
*/
@@ -433,7 +453,9 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
SDL_CreateRGBSurface(SDL_SWSURFACE, dstwidth, dstheight, 32,
rz_src->format->Rmask, rz_src->format->Gmask,
rz_src->format->Bmask, rz_src->format->Amask);
- } else {
+ }
+ else
+ {
/*
* Target surface is 8bit
*/
@@ -447,7 +469,8 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
/*
* Check which kind of surface we have
*/
- if (is32bit) {
+ if (is32bit)
+ {
/*
* Call the 32bit transformation routine to do the zooming (using alpha)
*/
@@ -456,11 +479,14 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
* Turn on source-alpha support
*/
SDL_SetAlpha(rz_dst, SDL_SRCALPHA, 255);
- } else {
+ }
+ else
+ {
/*
* Copy palette and colorkey info
*/
- for (i = 0; i < rz_src->format->palette->ncolors; i++) {
+ for (i = 0; i < rz_src->format->palette->ncolors; i++)
+ {
rz_dst->format->palette->colors[i] = rz_src->format->palette->colors[i];
}
rz_dst->format->palette->ncolors = rz_src->format->palette->ncolors;
@@ -478,9 +504,8 @@ SDL_Surface *_SDLzoomSurface(SDL_Surface * src, double zoomx, double zoomy, int
/*
* Cleanup temp surface
*/
- if (src_converted) {
+ if (src_converted)
SDL_FreeSurface(rz_src);
- }
/*
* Return destination surface
generated by cgit v1.2.3-60-g2f50 (git 2.42.0) at 2024-07-12 07:33:19 +0000