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added support for smear brush type

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This commit is contained in:
Campbell Barton 2008-11-06 02:08:41 +00:00
parent 5b6708c278
commit f018a3b5bb
1 changed files with 87 additions and 29 deletions
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116
source/blender/src/imagepaint.c
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@ -220,7 +220,7 @@ typedef struct ProjectPixel {
typedef struct ProjectPixelClone {
struct ProjectPixel __pp;
char backbuf[4]; /* TODO - float buffer? */
/*char backbuf[4]; *//* TODO - float buffer? */
char clonebuf[4];
//void *source; /* pointer to source pixels */
} ProjectPixelClone;
@ -490,7 +490,7 @@ static int screenco_pickface(ProjectPaintState *ps, float pt[2], float w[3], int
}
/* bucket_index is optional, since in some cases we know it */
static int screenco_pickcol(ProjectPaintState *ps, int bucket_index, float pt[2], char rgba[4], int interp)
static int screenco_pickcol(ProjectPaintState *ps, float pt[2], char rgba[4], int interp)
{
float w[3], uv[2];
int side;
@ -1065,23 +1065,23 @@ static void project_paint_uvpixel_init(ProjectPaintState *ps, ImBuf *ibuf, float
projPixel->pixel = (( char * ) ibuf->rect) + (( x + y * ibuf->x ) * pixel_size);
VECCOPY2D(projPixel->projCo2D, pixelScreenCo);
/* copy pixel color to backbuf */
memcpy( &(((ProjectPixelClone *)projPixel)->backbuf), projPixel->pixel, pixel_size);
/* copy pixel color to backbuf - not used yet */
/* memcpy( &(((ProjectPixelClone *)projPixel)->backbuf), projPixel->pixel, pixel_size); */
//((ProjectPixelClone *)projPixel)->source = NULL; /* must be set later */
/* Initialize clone pixels - note that this is a bit of a waste since some of these are being indirectly initialized :/ */
/* TODO - possibly only run this for directly ativated buckets when cloning */
Vec2Subf(co, projPixel->projCo2D, ps->cloneOfs);
/* no need to initialize the bucket, we're only checking buckets faces and for this
* the faces are alredy initialized in project_paint_delayed_face_init(...) */
if (!screenco_pickcol(ps, bucket_index, co, ((ProjectPixelClone *)projPixel)->clonebuf, 1)) {
if (!screenco_pickcol(ps, co, ((ProjectPixelClone *)projPixel)->clonebuf, 1)) {
((ProjectPixelClone *)projPixel)->clonebuf[3] = 0; /* zero alpha - ignore */
}
} else {
projPixel = (ProjectPixel *)BLI_memarena_alloc(ps->projectArena, sizeof(ProjectPixel));
/* smear needs the buffer from a clone pixel */
projPixel = (ProjectPixel *)BLI_memarena_alloc(ps->projectArena, (ps->tool==PAINT_TOOL_SMEAR) ? sizeof(ProjectPixelClone) : sizeof(ProjectPixel));
projPixel->pixel = (( char * ) ibuf->rect) + (( x + y * ibuf->x ) * pixel_size);
VECCOPY2D(projPixel->projCo2D, pixelScreenCo);
}
@ -2293,7 +2293,7 @@ static int project_bucket_circle_isect(ProjectPaintState *ps, int bucket_x, int
return 0;
}
static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter *painter, short mval[2], double time, int update, float pressure)
static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter *painter, short prevmval[2], short mval[2], double time, int update, float pressure)
{
/* TODO - texpaint option : is there any use in projection painting from the image window??? - could be interesting */
/* TODO - floating point images */
@ -2313,11 +2313,14 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
int bucket_index;
int a;
short blend= ps->blend;
char *cp;
int bucket_x, bucket_y;
/* for smear only */
float mval_ofs[2];
float co[2];
LinkNode *smearPixels = NULL;
MemArena *smearArena = NULL; /* mem arena for this brush projection only */
mval_f[0] = mval[0]; mval_f[1] = mval[1];
@ -2335,6 +2338,14 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
return 0;
}
if (ps->tool==PAINT_TOOL_SMEAR) {
mval_ofs[0] = (float)(mval[0] - prevmval[0]);
mval_ofs[1] = (float)(mval[1] - prevmval[1]);
smearArena = BLI_memarena_new(1<<16);
}
/* avoid a square root with every dist comparison */
brush_size_sqared = ps->brush->size * ps->brush->size;
@ -2377,24 +2388,51 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
dist = (float)sqrt(dist_nosqrt);
if (ps->tool==PAINT_TOOL_CLONE && ((char *)((ProjectPixelClone*)projPixel)->clonebuf)[3]) { //&& ((ProjectPixelClone*)projPixel)->source ) {
alpha = brush_sample_falloff(ps->brush, dist);
if (alpha <= 0.0) {
/* do nothing */
} else {
cp = (char *)((ProjectPixelClone*)projPixel)->clonebuf;
if (alpha >= 1.0) {
projPixel->pixel[0] = FTOCHAR( cp[0] );
projPixel->pixel[1] = FTOCHAR( cp[1] );
projPixel->pixel[2] = FTOCHAR( cp[2] );
switch(ps->tool) {
case PAINT_TOOL_CLONE:
if (((char *)((ProjectPixelClone*)projPixel)->clonebuf)[3]) {
alpha = brush_sample_falloff(ps->brush, dist);
if (alpha <= 0.0) {
/* do nothing */
} else {
projPixel->pixel[0] = FTOCHAR( (((cp[0]/255.0) * alpha) + (((projPixel->pixel[0])/255.0)*(1.0-alpha))) );
projPixel->pixel[1] = FTOCHAR( (((cp[1]/255.0) * alpha) + (((projPixel->pixel[1])/255.0)*(1.0-alpha))) );
projPixel->pixel[2] = FTOCHAR( (((cp[2]/255.0) * alpha) + (((projPixel->pixel[2])/255.0)*(1.0-alpha))) );
cp = (char *)((ProjectPixelClone*)projPixel)->clonebuf;
if (alpha >= 1.0) {
projPixel->pixel[0] = FTOCHAR( cp[0] );
projPixel->pixel[1] = FTOCHAR( cp[1] );
projPixel->pixel[2] = FTOCHAR( cp[2] );
} else {
projPixel->pixel[0] = FTOCHAR( (((cp[0]/255.0) * alpha) + (((projPixel->pixel[0])/255.0)*(1.0-alpha))) );
projPixel->pixel[1] = FTOCHAR( (((cp[1]/255.0) * alpha) + (((projPixel->pixel[1])/255.0)*(1.0-alpha))) );
projPixel->pixel[2] = FTOCHAR( (((cp[2]/255.0) * alpha) + (((projPixel->pixel[2])/255.0)*(1.0-alpha))) );
}
}
}
} else {
break;
case PAINT_TOOL_SMEAR:
Vec2Subf(co, projPixel->projCo2D, mval_ofs);
if (screenco_pickcol(ps, co, rgba_ub, 1)) {
brush_sample_tex(ps->brush, projPixel->projCo2D, rgba);
alpha = rgba[3]*brush_sample_falloff(ps->brush, dist);
/* drat! - this could almost be very simple if we ignore
* the fact that applying the color directly gives feedback,
* instead, collect the colors and apply after :/ */
#if 0 /* looks OK but not correct */
*((unsigned int *)projPixel->pixel) = IMB_blend_color( *((unsigned int *)projPixel->pixel), *((unsigned int *)rgba_ub), (int)(alpha*255), blend);
#endif
/* add to memarena instead */
*((unsigned int *) &((ProjectPixelClone *)projPixel)->clonebuf) = IMB_blend_color( *((unsigned int *)projPixel->pixel), *((unsigned int *)rgba_ub), (int)(alpha*255), blend);
BLI_linklist_prepend_arena(
&smearPixels,
(void *)projPixel,
smearArena
);
}
break;
default:
brush_sample_tex(ps->brush, projPixel->projCo2D, rgba);
alpha = rgba[3]*brush_sample_falloff(ps->brush, dist);
if (alpha > 0.0) {
@ -2405,13 +2443,15 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
*((unsigned int *)projPixel->pixel) = IMB_blend_color( *((unsigned int *)projPixel->pixel), *((unsigned int *)rgba_ub), (int)(alpha*255), blend);
}
break;
}
if (last_index != projPixel->image_index) {
last_index = projPixel->image_index;
ps->projectImages[last_index]->id.flag |= LIB_DOIT;
}
}
node = node->next;
@ -2421,6 +2461,18 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
}
}
if (ps->tool==PAINT_TOOL_SMEAR) {
if ((node = smearPixels)) {
do {
projPixel = node->link;
*((unsigned int *)projPixel->pixel) = *((unsigned int *)(((ProjectPixelClone *)projPixel)->clonebuf));
node = node->next;
} while (node);
}
BLI_memarena_free(smearArena);
}
/* Loop over all images on this mesh and update any we have touched */
for (a=0; a < ps->projectImageTotal; a++) {
Image *ima = ps->projectImages[a];
@ -2431,7 +2483,6 @@ static int imapaint_paint_sub_stroke_project(ProjectPaintState *ps, BrushPainter
ima->id.flag &= ~LIB_DOIT; /* clear for reuse */
}
}
return redraw;
}
@ -2522,7 +2573,7 @@ static void imapaint_paint_stroke_project(ProjectPaintState *ps, BrushPainter *p
/* TODO - support more brush operations, airbrush etc */
{
redraw |= imapaint_paint_sub_stroke_project(ps, painter, mval, time, 1, pressure);
redraw |= imapaint_paint_sub_stroke_project(ps, painter, prevmval, mval, time, 1, pressure);
}
if (redraw) {
@ -2626,6 +2677,13 @@ void imagepaint_paint(short mousebutton, short texpaint)
time= PIL_check_seconds_timer();
if (project) { /* Projection Painting */
/* TODO - brush outline, dosnt work yet */
/*
persp(PERSP_WIN);
fdrawXORcirc(mval[0], mval[1], ps.brush->size);
draw_sel_circle(mval, prevmval, ps.brush->size, ps.brush->size, 0);
persp(PERSP_VIEW);
*/
if((mval[0] != prevmval[0]) || (mval[1] != prevmval[1])) {
imapaint_paint_stroke_project(&ps, painter, prevmval, mval, time, pressure);
prevmval[0]= mval[0];