Differential D3101 Diff 10316 source/blender/imbuf/intern/scaling.c

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source/blender/imbuf/intern/scaling.c

Show First 20 Lines • Show All 1,544 Lines • ▼ Show 20 Lines	static void scalefast_Z_ImBuf(ImBuf *ibuf, int newx, int newy)

if (_newzbuf_float) {		if (_newzbuf_float) {
IMB_freezbuffloatImBuf(ibuf);		IMB_freezbuffloatImBuf(ibuf);
ibuf->mall \|= IB_zbuffloat;		ibuf->mall \|= IB_zbuffloat;
ibuf->zbuf_float = _newzbuf_float;		ibuf->zbuf_float = _newzbuf_float;
}		}
}		}

struct ImBuf IMB_scaleImBuf(struct ImBuf ibuf, unsigned int newx, unsigned int newy)		/**
		* Return true if \a ibuf is modified.
		*/
		bool IMB_scaleImBuf(struct ImBuf *ibuf, unsigned int newx, unsigned int newy)
{		{
if (ibuf == NULL) return (NULL);		if (ibuf == NULL) return false;
if (ibuf->rect == NULL && ibuf->rect_float == NULL) return (ibuf);		if (ibuf->rect == NULL && ibuf->rect_float == NULL) return false;

if (newx == ibuf->x && newy == ibuf->y) { return ibuf; }		if (newx == ibuf->x && newy == ibuf->y) {
		return false;
		}

/* scaleup / scaledown functions below change ibuf->x and ibuf->y		/* scaleup / scaledown functions below change ibuf->x and ibuf->y
* so we first scale the Z-buffer (if any) */		* so we first scale the Z-buffer (if any) */
scalefast_Z_ImBuf(ibuf, newx, newy);		scalefast_Z_ImBuf(ibuf, newx, newy);

/* try to scale common cases in a fast way */		/* try to scale common cases in a fast way */
/* disabled, quality loss is unacceptable, see report #18609 (ton) */		/* disabled, quality loss is unacceptable, see report #18609 (ton) */
if (0 && q_scale_linear_interpolation(ibuf, newx, newy)) {		if (0 && q_scale_linear_interpolation(ibuf, newx, newy)) {
return ibuf;		return true;
}		}

if (newx && (newx < ibuf->x)) scaledownx(ibuf, newx);		if (newx && (newx < ibuf->x)) scaledownx(ibuf, newx);
if (newy && (newy < ibuf->y)) scaledowny(ibuf, newy);		if (newy && (newy < ibuf->y)) scaledowny(ibuf, newy);
if (newx && (newx > ibuf->x)) scaleupx(ibuf, newx);		if (newx && (newx > ibuf->x)) scaleupx(ibuf, newx);
if (newy && (newy > ibuf->y)) scaleupy(ibuf, newy);		if (newy && (newy > ibuf->y)) scaleupy(ibuf, newy);

return(ibuf);		return true;
}		}

struct imbufRGBA {		struct imbufRGBA {
float r, g, b, a;		float r, g, b, a;
};		};

struct ImBuf IMB_scalefastImBuf(struct ImBuf ibuf, unsigned int newx, unsigned int newy)		/**
		* Return true if \a ibuf is modified.
		*/
		bool IMB_scalefastImBuf(struct ImBuf *ibuf, unsigned int newx, unsigned int newy)
{		{
unsigned int rect, _newrect, *newrect;		unsigned int rect, _newrect, *newrect;
struct imbufRGBA rectf, _newrectf, *newrectf;		struct imbufRGBA rectf, _newrectf, *newrectf;
int x, y;		int x, y;
bool do_float = false, do_rect = false;		bool do_float = false, do_rect = false;
size_t ofsx, ofsy, stepx, stepy;		size_t ofsx, ofsy, stepx, stepy;

rect = NULL; _newrect = NULL; newrect = NULL;		rect = NULL; _newrect = NULL; newrect = NULL;
rectf = NULL; _newrectf = NULL; newrectf = NULL;		rectf = NULL; _newrectf = NULL; newrectf = NULL;

if (ibuf == NULL) return(NULL);		if (ibuf == NULL) return false;
if (ibuf->rect) do_rect = true;		if (ibuf->rect) do_rect = true;
if (ibuf->rect_float) do_float = true;		if (ibuf->rect_float) do_float = true;
if (do_rect == false && do_float == false) return(ibuf);		if (do_rect == false && do_float == false) return false;

if (newx == ibuf->x && newy == ibuf->y) return(ibuf);		if (newx == ibuf->x && newy == ibuf->y) return false;

if (do_rect) {		if (do_rect) {
_newrect = MEM_mallocN(newx * newy * sizeof(int), "scalefastimbuf");		_newrect = MEM_mallocN(newx * newy * sizeof(int), "scalefastimbuf");
if (_newrect == NULL) return(ibuf);		if (_newrect == NULL) return false;
newrect = _newrect;		newrect = _newrect;
}		}

if (do_float) {		if (do_float) {
_newrectf = MEM_mallocN(newx * newy * sizeof(float) * 4, "scalefastimbuf f");		_newrectf = MEM_mallocN(newx * newy * sizeof(float) * 4, "scalefastimbuf f");
if (_newrectf == NULL) {		if (_newrectf == NULL) {
if (_newrect) MEM_freeN(_newrect);		if (_newrect) MEM_freeN(_newrect);
return(ibuf);		return false;
}		}
newrectf = _newrectf;		newrectf = _newrectf;
}		}

stepx = (65536.0 * (ibuf->x - 1.0) / (newx - 1.0)) + 0.5;		stepx = (65536.0 * (ibuf->x - 1.0) / (newx - 1.0)) + 0.5;
stepy = (65536.0 * (ibuf->y - 1.0) / (newy - 1.0)) + 0.5;		stepy = (65536.0 * (ibuf->y - 1.0) / (newy - 1.0)) + 0.5;
ofsy = 32768;		ofsy = 32768;

Show All 19 Lines	for (y = newy; y > 0; y--, ofsy += stepy) {
}		}
}		}

if (do_rect) {		if (do_rect) {
imb_freerectImBuf(ibuf);		imb_freerectImBuf(ibuf);
ibuf->mall \|= IB_rect;		ibuf->mall \|= IB_rect;
ibuf->rect = _newrect;		ibuf->rect = _newrect;
}		}

if (do_float) {		if (do_float) {
imb_freerectfloatImBuf(ibuf);		imb_freerectfloatImBuf(ibuf);
ibuf->mall \|= IB_rectfloat;		ibuf->mall \|= IB_rectfloat;
ibuf->rect_float = (float *)_newrectf;		ibuf->rect_float = (float *)_newrectf;
}		}

scalefast_Z_ImBuf(ibuf, newx, newy);		scalefast_Z_ImBuf(ibuf, newx, newy);

ibuf->x = newx;		ibuf->x = newx;
ibuf->y = newy;		ibuf->y = newy;
return(ibuf);		return true;
}		}

/* ****** threaded scaling ****** */		/* ****** threaded scaling ****** */

typedef struct ScaleTreadInitData {		typedef struct ScaleTreadInitData {
ImBuf *ibuf;		ImBuf *ibuf;

unsigned int newx;		unsigned int newx;
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