forked from bartvdbraak/blender
Bugfix #25657
Three code fixes for 1 report. User experienced crashes while painting on float buffer + having preview renders on. - Texture Nodes: Image was re-allocated without using proper thread lock - Paint code: old convention to free the byte rect from a float image as signal to re-create now is a proper flag. This keeps image memory unchanged. Nice for render. - Imbuf: call to make a byte rect from float was freeing mipmaps unnecessary.
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@ -432,7 +432,8 @@ static void image_undo_restore(bContext *C, ListBase *lb)
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GPU_free_image(ima); /* force OpenGL reload */
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if(ibuf->rect_float)
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imb_freerectImBuf(ibuf); /* force recreate of char rect */
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ibuf->userflags |= IB_RECT_INVALID; /* force recreate of char rect */
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}
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IMB_freeImBuf(tmpibuf);
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@ -4022,7 +4023,7 @@ static void imapaint_image_update(SpaceImage *sima, Image *image, ImBuf *ibuf, s
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{
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if(ibuf->rect_float)
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/* TODO - should just update a portion from imapaintpartial! */
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imb_freerectImBuf(ibuf); /* force recreate of char rect */
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ibuf->userflags |= IB_RECT_INVALID; /* force recreate of char rect */
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if(ibuf->mipmap[0])
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ibuf->userflags |= IB_MIPMAP_INVALID;
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@ -83,7 +83,7 @@ static void image_verify_buffer_float(Image *ima, ImBuf *ibuf, int color_manage)
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NOTE: if float buffer changes, we have to manually remove the rect
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*/
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if(ibuf->rect_float && ibuf->rect==NULL) {
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if(ibuf->rect_float && (ibuf->rect==NULL || (ibuf->userflags & IB_RECT_INVALID)) ) {
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if(color_manage) {
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if(ima && ima->source == IMA_SRC_VIEWER)
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ibuf->profile = IB_PROFILE_LINEAR_RGB;
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@ -137,12 +137,7 @@ typedef struct ImBuf {
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#define IB_BITMAPFONT (1 << 0) /* this image is a font */
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#define IB_BITMAPDIRTY (1 << 1) /* image needs to be saved is not the same as filename */
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#define IB_MIPMAP_INVALID (1 << 2) /* image mipmaps are invalid, need recreate */
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/* From iff.h. This was once moved away by Frank, now Nzc moves it
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* back. Such is the way it is... It is a long list of defines, and
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* there are a few external defines in the back. Most of the stuff is
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* probably imbuf_intern only. This will need to be merged later
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* on. */
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#define IB_RECT_INVALID (1 << 3) /* float buffer changed, needs recreation of byte rect */
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/**
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* \name Imbuf Component flags
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@ -277,7 +277,8 @@ short imb_addrectfloatImBuf(ImBuf *ibuf)
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if(ibuf==NULL) return FALSE;
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imb_freerectfloatImBuf(ibuf);
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if(ibuf->rect_float)
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imb_freerectfloatImBuf(ibuf); /* frees mipmap too, hrm */
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size = ibuf->x *ibuf->y;
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size = size *4 *sizeof(float);
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@ -188,6 +188,8 @@ void IMB_rect_from_float(struct ImBuf *ibuf)
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}
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}
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}
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/* ensure user flag is reset */
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ibuf->userflags &= ~IB_RECT_INVALID;
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}
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static void imb_float_from_rect_nonlinear(struct ImBuf *ibuf, float *fbuf)
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@ -58,7 +58,13 @@ static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **UNUSED(i
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py = (int)( (y-yoff) * ysize );
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if( (!xsize) || (!ysize) ) return;
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if( !ibuf->rect_float ) IMB_float_from_rect(ibuf);
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if( !ibuf->rect_float ) {
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BLI_lock_thread(LOCK_IMAGE);
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if( !ibuf->rect_float )
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IMB_float_from_rect(ibuf);
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BLI_unlock_thread(LOCK_IMAGE);
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}
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while( px < 0 ) px += ibuf->x;
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while( py < 0 ) py += ibuf->y;
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