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jpaalasm |
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# Makefile for the Gallery images on the Sketch homepage |
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# |
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# All the gallery files are generated from pairs of sk-files and readme |
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# files. The rendering process involves relatively large intermediate |
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# PPM files which are not automatically removed. You may want to do that |
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# by hand occasionally. |
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# Directory where the .sk and .readme files can be found |
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SRCDIR = src |
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# |
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# Tools Configuration |
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# |
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# program to convert .sk files to ppm |
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SK2PPM = sk2ppm |
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# program to convert ppm to jpeg |
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CJPEG = cjpeg |
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# program to scale a ppm file |
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PNMSCALE = pnmscale |
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# The Gallery images. These are the basenames of the .sk and .readme |
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# files in $(SRCDIR). They're grouped by artist with MISC as the catch |
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# all. |
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APASCUAL = coco nana portrait SimcaSP moniteur Affiche4 Distribution Simca8 |
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WOJTKIEWICZ = bathead fruitscene kapelusznica |
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HARA = trem01 raposa |
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TATANE = avion cartes compo helicoptere photo pomme vache |
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BIDDIER = southern_bell southern_cop smile_n_jack under_da_sea |
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bh |
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THILBRICHT = waratah |
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jpaalasm |
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MISC = bsddaemon stay_with_us penguin sun |
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# list of all drawing basenames to process |
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bernhard |
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DRAWINGS = $(APASCUAL) $(WOJTKIEWICZ) $(HARA) $(TATANE) $(BIDDIER) $(MISC) $(THILBRICHT) |
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jpaalasm |
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# list of all the tarfiles |
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TARFILES = $(DRAWINGS:%=%.tar.gz) |
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# list of all the jpg images |
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IMAGES = $(DRAWINGS:%=%.jpg) |
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# Resolution of the rendered .sk files in ppi |
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FULL_RESOLUTION = 144 |
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# number of gradient steps when rendering |
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GRADIENT_STEPS = 100 |
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# Command to scale the rendered PPM file to a more suitable size for the |
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# full image |
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FULL_SCALE = $(PNMSCALE) 0.4 |
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# scale factor for the preview thumbnail |
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PREVIEW_FACTOR = -height 150 |
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# cjpeg options for the full-scale images |
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LARGE_JPEG_OPTS = -quality 80 |
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# Some images need some special options or extra processing. To |
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# facilitate this, the makefile uses variables with the form |
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# <basename>_sk2ppmopt and <basename>_previewfilter. <basename> is the |
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# basename of the sk-file being processed. |
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# |
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# The *_sk2ppmopt variables control the rendering of sk-files to ppm. |
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# Normally, the bounding box of an image determines the region of the |
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# drawing that is rendered. If the *_sk2ppmopt variable's value is page, |
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# then the page is used as the region. |
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# |
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# The *_previewfilter are an additional filtering step for the generated |
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# previews. Their value should be a command that accepts a PPM file on |
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# stdin and writes a PPM file to stdout. The command should end in a |
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# pipe symbol. The output is the input to the cjpeg program which writes |
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# the preview image. |
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coco_sk2ppmopt = page |
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moniteur_previewfilter = pnmcrop -black | |
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coco_previewfilter = pnmcrop -black | |
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bathead_previewfilter = pnmcrop -black | |
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# the intermediate ppm files should not be removed automatically because |
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# they're relatively expensive to create. |
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.PRECIOUS: %.ppm |
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all: $(IMAGES) $(TARFILES) |
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%.jpg: %.ppm |
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$(PNMSCALE) $(PREVIEW_FACTOR) $< | $($*_previewfilter) \ |
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$(CJPEG) > small$@ \ |
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|| rm -f small$@ |
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$(FULL_SCALE) $< | $(CJPEG) $(LARGE_JPEG_OPTS) > $@ || rm -f $@ |
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%.ppm: $(SRCDIR)/%.sk |
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$(SK2PPM) --resolution=$(FULL_RESOLUTION) \ |
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--gradient-steps=$(GRADIENT_STEPS) \ |
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$(shell if [ "$($*_sk2ppmopt)" == "page" ]; \ |
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then echo ''; else echo '--bbox'; fi) \ |
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$< $@ |
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%.tar.gz: $(SRCDIR)/%.sk $(SRCDIR)/%.readme |
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tar cvzf $@ $^ |
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clean: |
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rm -f $(IMAGES) $(IMAGES:%=small%) $(TARFILES) |
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clobber: clean |
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rm -f *.ppm |
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