From 7718b3d642566921c47e23359ce17d33b570f617 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Sun, 28 Oct 2007 22:27:07 +0000
Subject: render stamp drawing is now done everywhere - (not just when saving
 images) separated stamp metadata and stamp draw functions.

---
 source/blender/imbuf/IMB_imbuf.h     |  3 ++
 source/blender/imbuf/intern/rectop.c | 67 +++++++++++++++++++++---------------
 2 files changed, 43 insertions(+), 27 deletions(-)

(limited to 'source/blender/imbuf')

diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index 4d91a82a58f..dbbddd2a070 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -547,6 +547,9 @@ void IMB_freezbuffloatImBuf(struct ImBuf * ibuf);
 void IMB_rectfill(struct ImBuf *drect, float col[4]);
 void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, int y2);
 
+/* this should not be here, really, we needed it for operating on render data, IMB_rectfill_area calls it */
+void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, float *col, int x1, int y1, int x2, int y2);
+
 /* defined in imginfo.c */
 int IMB_imginfo_change_field(struct ImBuf *img, const char *key, const char *field);
 
diff --git a/source/blender/imbuf/intern/rectop.c b/source/blender/imbuf/intern/rectop.c
index 591ab066c57..fde0b2b3623 100644
--- a/source/blender/imbuf/intern/rectop.c
+++ b/source/blender/imbuf/intern/rectop.c
@@ -521,18 +521,19 @@ void IMB_rectfill(struct ImBuf *drect, float col[4])
 #define FTOCHAR(val) (val<=0.0f ? 0: (val>=1.0f ? 255: (char)(255.99f*val)))
 #define CLAMP(a, b, c)		if((a)<(b)) (a)=(b); else if((a)>(c)) (a)=(c)
 #define SWAP(type, a, b)        { type sw_ap; sw_ap=(a); (a)=(b); (b)=sw_ap; }
-void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, int y2)
+
+void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, float *col, int x1, int y1, int x2, int y2)
 {
 	int i, j;
 	float a, ai;
-	if ((!ibuf) || (!col))
+	if ((!rect && !rectf) || (!col) || col[3]==0.0)
 		return;
 	
 	/* sanity checks for coords */
-	CLAMP(x1, 0, ibuf->x);
-	CLAMP(x2, 0, ibuf->x);
-	CLAMP(y1, 0, ibuf->y);
-	CLAMP(y2, 0, ibuf->y);
+	CLAMP(x1, 0, width);
+	CLAMP(x2, 0, width);
+	CLAMP(y1, 0, height);
+	CLAMP(y2, 0, height);
 
 	if (x1>x2) SWAP(int,x1,x2);
 	if (y1>y2) SWAP(int,y1,y2);
@@ -541,38 +542,44 @@ void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, i
 	a = col[3];
 	ai = 1-a;
 	
-	if (ibuf->rect) {
-		unsigned char *img, *pixel; 
+
+	if (rect) {
+		unsigned char *pixel; 
 		unsigned char chr, chg, chb;
-	
-		chr = FTOCHAR(col[0]);
-		chg = FTOCHAR(col[1]);
-		chb = FTOCHAR(col[2]);
+		float fr, fg, fb;
 		
-		img = (unsigned char *) ibuf->rect;
+		if (a == 1.0) {
+			chr = FTOCHAR(col[0]);
+			chg = FTOCHAR(col[1]);
+			chb = FTOCHAR(col[2]);
+		} else {
+			fr = col[0]*a;
+			fg = col[1]*a;
+			fb = col[2]*a;
+		}
 		for (j = 0; j < y2-y1; j++) {
 			for (i = 0; i < x2-x1; i++) {
-				pixel = img + 4 * (((y1 + j) * ibuf->x) + (x1 + i));
-				if (a == 1.0) {
-					pixel[0] = chr;
-					pixel[1] = chg;
-					pixel[2] = chb;
-				} else {
-					pixel[0] = (char)((chr*a) + (pixel[0]*ai));
-					pixel[1] = (char)((chg*a) + (pixel[1]*ai));
-					pixel[2] = (char)((chb*a) + (pixel[2]*ai));
+				pixel = rect + 4 * (((y1 + j) * width) + (x1 + i));
+				if (pixel >= rect && pixel < rect+ (4 * (width * height))) {
+					if (a == 1.0) {
+						pixel[0] = chr;
+						pixel[1] = chg;
+						pixel[2] = chb;
+					} else {
+						pixel[0] = (char)(fr + ((float)pixel[0]*ai));
+						pixel[1] = (char)(fg + ((float)pixel[1]*ai));
+						pixel[2] = (char)(fb + ((float)pixel[2]*ai));
+					}
 				}
-				
 			}
 		}
 	}
 	
-	if (ibuf->rect_float) {
-		float *img, *pixel;
-		img = ibuf->rect_float;
+	if (rectf) {
+		float *pixel;
 		for (j = 0; j < y2-y1; j++) {
 			for (i = 0; i < x2-x1; i++) {
-				pixel = img + 4 * (((y1 + j) * ibuf->x) + (x1 + i));
+				pixel = rectf + 4 * (((y1 + j) * width) + (x1 + i));
 				if (a == 1.0) {
 					pixel[0] = col[0];
 					pixel[1] = col[1];
@@ -586,3 +593,9 @@ void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, i
 		}
 	}
 }
+
+void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, int y2)
+{
+	if (!ibuf) return;
+	buf_rectfill_area((unsigned char *) ibuf->rect, ibuf->rect_float, ibuf->x, ibuf->y, col, x1, y1, x2, y2);
+}
-- 
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