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3b76b058fd
The xe/ye element was completely unnecessary because we never have an offset at the pixel level. Furthermore, it was used incorrectly, causing a shift between old and new when xmin/ymin differed.
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* gfx/cro.h - Cairo graphics back-end
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef GFX_CRO_H
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#define GFX_CRO_H
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#include <stdint.h>
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#include <cairo/cairo.h>
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#include "gfx/gfx.h"
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struct cro_ctx;
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extern const struct gfx_ops cro_png_ops;
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extern const struct gfx_ops cro_pdf_ops;
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#define cro_img_ops cro_png_ops /* just don't call cro_img_ops.end */
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#define cro_canvas_ops cro_png_ops /* just don't call cro_canvas_ops.end */
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void cro_color_override(struct cro_ctx *cc, int color);
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void cro_get_size(const struct cro_ctx *cc, int *w, int *h, int *x, int *y);
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uint32_t *cro_img_end(struct cro_ctx *cc, int *w, int *h, int *stride);
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void cro_img_write(struct cro_ctx *cc, const char *name);
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void cro_canvas_end(struct cro_ctx *cc, int *w, int *h, int *xmin, int *ymin);
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void cro_canvas_prepare(cairo_t *cr);
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void cro_canvas_draw(struct cro_ctx *cc, cairo_t *cr,
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int x, int y, float scale);
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uint32_t *cro_img(struct cro_ctx *ctx, int x0, int yo, int w, int h,
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float scale, cairo_t **res_cr, int *res_stride);
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#endif /* !GFX_CRO_H */
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