[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [17502] branches/projection-paint/source/ blender/src/imagepaint.c: * use utility function brush_painter_paint that runs the project_paint_op in a callback , (hopefully making tablets work properly)

Campbell Barton ideasman42 at gmail.com
Wed Nov 19 08:57:26 CET 2008


Revision: 17502
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=17502
Author:   campbellbarton
Date:     2008-11-19 08:57:25 +0100 (Wed, 19 Nov 2008)

Log Message:
-----------
* use utility function brush_painter_paint that runs the project_paint_op in a callback, (hopefully making tablets work properly)
* removed own interpolation function, use bilinear_interpolation_color instead.

Modified Paths:
--------------
    branches/projection-paint/source/blender/src/imagepaint.c

Modified: branches/projection-paint/source/blender/src/imagepaint.c
===================================================================
--- branches/projection-paint/source/blender/src/imagepaint.c	2008-11-19 05:30:52 UTC (rev 17501)
+++ branches/projection-paint/source/blender/src/imagepaint.c	2008-11-19 07:57:25 UTC (rev 17502)
@@ -262,13 +262,13 @@
 {
 	float *f_pt;			/* float buffer */
 	unsigned int *uint_pt; /* 2 ways to access a char buffer */
-	char *ch_pt;
+	unsigned char *ch_pt;
 } PixelPointer;
 
 typedef union pixelStore
 {
-	char ch[4];
-	int uint;
+	unsigned char ch[4];
+	unsigned int uint;
 } PixelStore;
 
 typedef struct ProjPixel {
@@ -648,98 +648,8 @@
 	return best_face_index; /* will be -1 or a valid face */
 }
 
-/* TODO move to "source/blender/imbuf/intern/imageprocess.c" - also try bilinear weight which is faster */
-
-/**************************************************************************
-*                            INTERPOLATIONS 
-*
-* Reference and docs:
-* http://wiki.blender.org/index.php/User:Damiles#Interpolations_Algorithms
-***************************************************************************/
-
-/* BICUBIC Interpolation functions */
-/*  More info: http://wiki.blender.org/index.php/User:Damiles#Bicubic_pixel_interpolation
-*/
-/* function assumes out to be zero'ed, only does RGBA */
-static float P(float k){
-	return (float)(1.0f/6.0f)*( pow( MAX2(k+2.0f,0) , 3.0f ) - 4.0f * pow( MAX2(k+1.0f,0) , 3.0f ) + 6.0f * pow( MAX2(k,0) , 3.0f ) - 4.0f * pow( MAX2(k-1.0f,0) , 3.0f));
-}
-
-static void bicubic_interpolation_px(ImBuf *in, float x, float y, float rgba_fp[4], char rgba[4])
-{
-	int i,j,n,m,x1,y1;
-	unsigned char *dataI;
-	float a,b,w,wx,wy[4], outR,outG,outB,outA,*dataF;
-	int do_rect=0, do_float=0;
-
-	if (in == NULL) return;
-	if (in->rect == NULL && in->rect_float == NULL) return;
-
-	if (in->rect_float)	do_float = 1;
-	else				do_rect = 1;
-	
-	i= (int)floor(x);
-	j= (int)floor(y);
-	a= x - i;
-	b= y - j;
-
-	outR= 0.0f;
-	outG= 0.0f;
-	outB= 0.0f;
-	outA= 0.0f;
-	
-	/* avoid calling multiple times */
-	wy[0] = P(b-(-1));
-	wy[1] = P(b-  0);
-	wy[2] = P(b-  1);
-	wy[3] = P(b-  2);
-	
-	for(n= -1; n<= 2; n++){
-		x1= i+n;
-		if (x1>0 && x1 < in->x) {
-			wx = P(n-a);
-			for(m= -1; m<= 2; m++){
-				y1= j+m;
-				if (y1>0 && y1<in->y) {
-					/* normally we could do this */
-					/* w = P(n-a) * P(b-m); */
-					/* except that would call P() 16 times per pixel therefor pow() 64 times, better precalc these */
-					w = wx * wy[m+1];
-					
-					if (do_float) {
-						dataF= in->rect_float + in->x * y1 * 4 + 4*x1;
-						outR+= dataF[0] * w;
-						outG+= dataF[1] * w;
-						outB+= dataF[2] * w;
-						outA+= dataF[3] * w;
-					}
-					if (do_rect) {
-						dataI= (unsigned char*)in->rect + in->x * y1 * 4 + 4*x1;
-						outR+= dataI[0] * w;
-						outG+= dataI[1] * w;
-						outB+= dataI[2] * w;
-						outA+= dataI[3] * w;
-					}
-				}
-			}
-		}
-	}
-	if (do_rect) {
-		rgba[0]= (int)outR;
-		rgba[1]= (int)outG;
-		rgba[2]= (int)outB;
-		rgba[3]= (int)outA;
-	}
-	if (do_float) {
-		rgba_fp[0]= outR;
-		rgba_fp[1]= outG;
-		rgba_fp[2]= outB;
-		rgba_fp[3]= outA;
-	}
-}
-
 /* Set the top-most face color that the screen space coord 'pt' touches (or return 0 if none touch) */
-static int project_paint_PickColor(ProjPaintState *ps, float pt[2], float *rgba_fp, char *rgba, int interp)
+static int project_paint_PickColor(ProjPaintState *ps, float pt[2], float *rgba_fp, unsigned char *rgba, int interp)
 {
 	float w[3], uv[2];
 	int side;
@@ -782,18 +692,18 @@
 		
 		if (ibuf->rect_float) {
 			if (rgba_fp) {
-				bicubic_interpolation_px(ibuf, x, y, rgba_fp, NULL);
+				bilinear_interpolation_color(ibuf, NULL, rgba_fp, x, y);
 			} else {
 				float rgba_tmp_fp[4];
-				bicubic_interpolation_px(ibuf, x, y, rgba_tmp_fp, NULL);
+				bilinear_interpolation_color(ibuf, NULL, rgba_tmp_fp, x, y);
 				IMAPAINT_FLOAT_RGBA_TO_CHAR(rgba, rgba_tmp_fp);
 			}
 		} else {
 			if (rgba) {
-				bicubic_interpolation_px(ibuf, x, y, NULL, rgba);
+				bilinear_interpolation_color(ibuf, rgba, NULL, x, y);
 			} else {
-				char rgba_tmp[4];
-				bicubic_interpolation_px(ibuf, x, y, NULL, rgba_tmp);
+				unsigned char rgba_tmp[4];
+				bilinear_interpolation_color(ibuf, rgba_tmp, NULL, x, y);
 				IMAPAINT_CHAR_RGBA_TO_FLOAT( rgba_fp,  rgba_tmp);
 			}
 		}
@@ -1329,7 +1239,7 @@
 			projPixel->pixel.f_pt = ((( float * ) ibuf->rect_float) + (( x + y * ibuf->x ) * IMA_CHAR_PX_SIZE));
 			/* TODO float support for origColor */
 		} else {
-			projPixel->pixel.ch_pt = ((( char * ) ibuf->rect) + (( x + y * ibuf->x ) * IMA_CHAR_PX_SIZE));
+			projPixel->pixel.ch_pt = ((( unsigned char * ) ibuf->rect) + (( x + y * ibuf->x ) * IMA_CHAR_PX_SIZE));
 			projPixel->origColor.uint = *projPixel->pixel.uint_pt;
 		}
 		
@@ -1379,7 +1289,8 @@
 					x = x * ibuf_other->x - 0.5f;
 					y = y * ibuf_other->y - 0.5f;
 					
-					bicubic_interpolation_px(ibuf_other, x, y, NULL, ((ProjPixelClone *)projPixel)->clonepx.ch);
+					/* TODO - float buffer check */
+					bilinear_interpolation_color(ibuf_other, ((ProjPixelClone *)projPixel)->clonepx.ch, NULL, x, y);
 				} else {
 					((ProjPixelClone *)projPixel)->clonepx.ch[3] = 0;
 				}
@@ -2197,14 +2108,8 @@
 	
 	ps->screenCoords = MEM_mallocN(sizeof(float) * ps->dm_totvert * 4, "ProjectPaint ScreenVerts");
 	projScreenCo = ps->screenCoords;
-	
-	/* TODO - check cameras mode too */
-	
-	//if (G.vd->persp == V3D_ORTHO) {
-	//	ps->is_ortho = 1;
-	//}
-	
 
+	
 	{	/* only use these for running 'get_view3d_viewplane' */
 		rctf viewplane;
 		float clipend;
@@ -2725,14 +2630,20 @@
 	if (ibuf->rect_float) {
 		float *rrgbf = ibuf->rect_float + (ibuf->x*y + x)*4;
 
-		if (set) IMAPAINT_FLOAT_RGB_COPY(rrgbf, rgb)
-		else IMAPAINT_FLOAT_RGB_COPY(rgb, rrgbf)
+		if (set) {
+			IMAPAINT_FLOAT_RGB_COPY(rrgbf, rgb);
+		} else {
+			IMAPAINT_FLOAT_RGB_COPY(rgb, rrgbf);
+		}
 	}
 	else {
 		char *rrgb = (char*)ibuf->rect + (ibuf->x*y + x)*4;
 
-		if (set) IMAPAINT_FLOAT_RGB_TO_CHAR(rrgb, rgb)
-		else IMAPAINT_CHAR_RGB_TO_FLOAT(rgb, rrgb)
+		if (set) {
+			IMAPAINT_FLOAT_RGB_TO_CHAR(rrgb, rgb)
+		} else {
+			IMAPAINT_CHAR_RGB_TO_FLOAT(rgb, rrgb)
+		}
 	}
 }
 
@@ -3062,8 +2973,9 @@
 	}
 }
 
-static void partial_redraw_array_merge(ImagePaintPartialRedraw *pr, ImagePaintPartialRedraw *pr_other, int tot)
+static int partial_redraw_array_merge(ImagePaintPartialRedraw *pr, ImagePaintPartialRedraw *pr_other, int tot)
 {
+	int touch;
 	while (tot--) {
 		pr->x1 = MIN2(pr->x1, pr_other->x1);
 		pr->y1 = MIN2(pr->y1, pr_other->y1);
@@ -3071,8 +2983,13 @@
 		pr->x2 = MAX2(pr->x2, pr_other->x2);
 		pr->y2 = MAX2(pr->y2, pr_other->y2);
 		
+		if (pr->x2 != -2)
+			touch = 1;
+		
 		pr++; pr_other++;
 	}
+	
+	return touch;
 }
 
 /* Loop over all images on this mesh and update any we have touched */
@@ -3168,16 +3085,32 @@
 	return 0;
 }
 
-static void imapaint_paint_sub_stroke_project(
-				ProjPaintState *ps,
-				BrushPainter *painter,
-				float prevmval[2],
-				float mval[2],
-				double time,
-				float pressure,
-				ProjPaintImage *projImages,
-				int thread_index)
+
+/* Each thread gets one of these, also used as an argument to pass to project_paint_op */
+typedef struct ProjectHandle {
+	/* args */
+	ProjPaintState *ps;
+	float prevmval[2];
+	float mval[2];
+	
+	/* annoying but we need to have image bounds per thread, then merge into ps->projectPartialRedraws */
+	ProjPaintImage *projImages;	/* array of partial redraws */
+	
+	/* thread settings */
+	int thread_index;
+} ProjectHandle;
+
+/* run this for single and multithreaded painting */
+static void *do_projectpaint_thread(void *ph_v)
 {
+	/* First unpack args from the struct */
+	ProjPaintState *ps =			((ProjectHandle *)ph_v)->ps;
+	ProjPaintImage *projImages =	((ProjectHandle *)ph_v)->projImages;
+	float *lastpos =				((ProjectHandle *)ph_v)->prevmval;
+	float *pos =					((ProjectHandle *)ph_v)->mval;
+	int thread_index =				((ProjectHandle *)ph_v)->thread_index;
+	/* Done with args from ProjectHandle */
+
 	LinkNode *node;
 	ProjPixel *projPixel;
 	
@@ -3186,7 +3119,7 @@
 	ImagePaintPartialRedraw *last_partial_redraw_cell;
 	
 	float rgba[4], alpha, dist, dist_nosqrt;
-	char rgba_ub[4];
+	unsigned char rgba_ub[4];
 	
 	float brush_size_sqared;
 	int bucket_index;
@@ -3197,7 +3130,7 @@
 	
 	/* for smear only */
 	char rgba_smear[4];
-	float mval_ofs[2];
+	float pos_ofs[2];
 	float co[2];
 	LinkNode *smearPixels = NULL;
 	LinkNode *smearPixels_float = NULL;
@@ -3205,8 +3138,8 @@
 	
 	
 	if (ps->tool==PAINT_TOOL_SMEAR) {
-		mval_ofs[0] = mval[0] - prevmval[0];
-		mval_ofs[1] = mval[1] - prevmval[1];
+		pos_ofs[0] = pos[0] - lastpos[0];
+		pos_ofs[1] = pos[1] - lastpos[1];
 		
 		smearArena = BLI_memarena_new(1<<16);
 	}
@@ -3216,16 +3149,10 @@
 	
 	/* printf("brush bounds %d %d %d %d\n", bucket_min[0], bucket_min[1], bucket_max[0], bucket_max[1]); */
 	
-	/* If there is ever problems with getting the bounds for the brush, set the bounds to include all */
-	/*bucket_min[0] = 0; bucket_min[1] = 0; bucket_max[0] = ps->buckets_x; bucket_max[1] = ps->buckets_y;*/
-	
-	/* no clamping needed, dont use screen bounds, use vert bounds  */
-	
-	//for (bucket_y = bucket_min[1]; bucket_y < bucket_max[1]; bucket_y++) {
 #ifdef PROJ_DEBUG_PRINT_THREADS
 	printf("THREAD %d %d %d\n", ps->thread_tot, thread_index,  (ps->bucket_max[0] - ps->bucket_min[0]) * (ps->bucket_max[1] - ps->bucket_min[1]) );
 #endif
-	while (bucket_iter_next(ps, &bucket_index, bucket_bounds, mval)) {				
+	while (bucket_iter_next(ps, &bucket_index, bucket_bounds, pos)) {				
 		
 #ifdef PROJ_DEBUG_PRINT_THREADS
 		printf("\t%d %d\n", thread_index, bucket_index);
@@ -3245,8 +3172,8 @@
 			do {
 				projPixel = (ProjPixel *)node->link;
 				
-				/*dist = Vec2Lenf(projPixel->projCo2D, mval);*/ /* correct but uses a sqrt */
-				dist_nosqrt = Vec2Lenf_nosqrt(projPixel->projCo2D, mval);
+				/*dist = Vec2Lenf(projPixel->projCo2D, pos);*/ /* correct but uses a sqrt */
+				dist_nosqrt = Vec2Lenf_nosqrt(projPixel->projCo2D, pos);
 				
 				/*if (dist < s->brush->size) {*/ /* correct but uses a sqrt */
 				if (dist_nosqrt < brush_size_sqared) {
@@ -3289,7 +3216,7 @@
 						}
 						break;
 					case PAINT_TOOL_SMEAR:
-						Vec2Subf(co, projPixel->projCo2D, mval_ofs);
+						Vec2Subf(co, projPixel->projCo2D, pos_ofs);
 						if (project_paint_PickColor(ps, co, NULL, rgba_ub, 1)) { /* Note, no interpolation here, only needed for clone, nearest should be is OK??? - c */
 							brush_sample_tex(ps->brush, projPixel->projCo2D, rgba);

@@ Diff output truncated at 10240 characters. @@




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