diff options
Diffstat (limited to 'source/fitz/draw-device.c')
| -rw-r--r-- | source/fitz/draw-device.c | 252 |
1 files changed, 126 insertions, 126 deletions
diff --git a/source/fitz/draw-device.c b/source/fitz/draw-device.c index 51d394f6..d6d17782 100644 --- a/source/fitz/draw-device.c +++ b/source/fitz/draw-device.c @@ -1,132 +1,6 @@ #include "mupdf/fitz.h" #include "draw-imp.h" -const char *fz_draw_options_usage = - "Common raster format output options:\n" - "\trotate=N: rotate rendered pages N degrees counterclockwise\n" - "\tresolution=N: set both X and Y resolution of rendered pages in pixels per inch\n" - "\tx-resolution=N: X resolution of rendered pages in pixels per inch\n" - "\ty-resolution=N: Y resolution of rendered pages in pixels per inch\n" - "\twidth=N: render pages to fit N pixels wide (ignore resolution option)\n" - "\theight=N: render pages to fit N pixels tall (ignore resolution option)\n" - "\tcolorspace=(gray|rgb|cmyk): render using specified colorspace\n" - "\talpha: render pages with alpha channel and transparent background\n" - "\n"; - -fz_draw_options * -fz_parse_draw_options(fz_context *ctx, fz_draw_options *opts, const char *args) -{ - const char *val; - - memset(opts, 0, sizeof *opts); - - opts->x_resolution = 96; - opts->y_resolution = 96; - opts->rotate = 0; - opts->width = 0; - opts->height = 0; - opts->colorspace = fz_device_rgb(ctx); - opts->alpha = 0; - - if (fz_has_option(ctx, args, "rotate", &val)) - opts->rotate = fz_atoi(val); - if (fz_has_option(ctx, args, "resolution", &val)) - opts->x_resolution = opts->y_resolution = fz_atoi(val); - if (fz_has_option(ctx, args, "x-resolution", &val)) - opts->x_resolution = fz_atoi(val); - if (fz_has_option(ctx, args, "y-resolution", &val)) - opts->y_resolution = fz_atoi(val); - if (fz_has_option(ctx, args, "width", &val)) - opts->width = fz_atoi(val); - if (fz_has_option(ctx, args, "height", &val)) - opts->height = fz_atoi(val); - if (fz_has_option(ctx, args, "colorspace", &val)) - { - if (fz_option_eq(val, "gray") || fz_option_eq(val, "grey")) - opts->colorspace = fz_device_gray(ctx); - else if (fz_option_eq(val, "rgb")) - opts->colorspace = fz_device_rgb(ctx); - else if (fz_option_eq(val, "cmyk")) - opts->colorspace = fz_device_cmyk(ctx); - else - fz_throw(ctx, FZ_ERROR_GENERIC, "unknown colorspace in options"); - } - if (fz_has_option(ctx, args, "alpha", &val)) - opts->alpha = fz_option_eq(val, "yes"); - - /* Sanity check values */ - if (opts->x_resolution <= 0) opts->x_resolution = 96; - if (opts->y_resolution <= 0) opts->y_resolution = 96; - if (opts->width < 0) opts->width = 0; - if (opts->height < 0) opts->height = 0; - - return opts; -} - -fz_device * -fz_new_draw_device_with_options(fz_context *ctx, const fz_draw_options *opts, const fz_rect *mediabox, fz_pixmap **pixmap) -{ - float x_zoom = opts->x_resolution / 72.0f; - float y_zoom = opts->y_resolution / 72.0f; - int w = opts->width; - int h = opts->height; - fz_rect bounds; - fz_irect ibounds; - fz_matrix transform; - fz_device *dev; - - fz_pre_rotate(fz_scale(&transform, x_zoom, y_zoom), opts->rotate); - bounds = *mediabox; - fz_round_rect(&ibounds, fz_transform_rect(&bounds, &transform)); - - /* If width or height are set, we may need to adjust the transform */ - if (w || h) - { - float scalex = 1; - float scaley = 1; - if (w != 0) - scalex = w / (bounds.x1 - bounds.x0); - if (h != 0) - scaley = h / (bounds.y1 - bounds.y0); - if (scalex != scaley) - { - if (w == 0) - scalex = scaley; - else if (h == 0) - scaley = scalex; - else if (scalex > scaley) - scalex = scaley; - else - scaley = scalex; - } - if (scalex != 1 || scaley != 1) - { - fz_pre_scale(&transform, scalex, scaley); - bounds = *mediabox; - fz_round_rect(&ibounds, fz_transform_rect(&bounds, &transform)); - } - } - - *pixmap = fz_new_pixmap_with_bbox(ctx, opts->colorspace, &ibounds, opts->alpha); - fz_try(ctx) - { - fz_set_pixmap_resolution(ctx, *pixmap, opts->x_resolution, opts->y_resolution); - if (opts->alpha) - fz_clear_pixmap(ctx, *pixmap); - else - fz_clear_pixmap_with_value(ctx, *pixmap, 255); - - dev = fz_new_draw_device(ctx, &transform, *pixmap); - } - fz_catch(ctx) - { - fz_drop_pixmap(ctx, *pixmap); - *pixmap = NULL; - fz_rethrow(ctx); - } - return dev; -} - #define STACK_SIZE 96 /* Enable the following to attempt to support knockout and/or isolated @@ -2538,3 +2412,129 @@ fz_bound_path_accurate(fz_context *ctx, fz_irect *bbox, const fz_irect *scissor, return bbox; } + +const char *fz_draw_options_usage = + "Common raster format output options:\n" + "\trotate=N: rotate rendered pages N degrees counterclockwise\n" + "\tresolution=N: set both X and Y resolution of rendered pages in pixels per inch\n" + "\tx-resolution=N: X resolution of rendered pages in pixels per inch\n" + "\ty-resolution=N: Y resolution of rendered pages in pixels per inch\n" + "\twidth=N: render pages to fit N pixels wide (ignore resolution option)\n" + "\theight=N: render pages to fit N pixels tall (ignore resolution option)\n" + "\tcolorspace=(gray|rgb|cmyk): render using specified colorspace\n" + "\talpha: render pages with alpha channel and transparent background\n" + "\n"; + +fz_draw_options * +fz_parse_draw_options(fz_context *ctx, fz_draw_options *opts, const char *args) +{ + const char *val; + + memset(opts, 0, sizeof *opts); + + opts->x_resolution = 96; + opts->y_resolution = 96; + opts->rotate = 0; + opts->width = 0; + opts->height = 0; + opts->colorspace = fz_device_rgb(ctx); + opts->alpha = 0; + + if (fz_has_option(ctx, args, "rotate", &val)) + opts->rotate = fz_atoi(val); + if (fz_has_option(ctx, args, "resolution", &val)) + opts->x_resolution = opts->y_resolution = fz_atoi(val); + if (fz_has_option(ctx, args, "x-resolution", &val)) + opts->x_resolution = fz_atoi(val); + if (fz_has_option(ctx, args, "y-resolution", &val)) + opts->y_resolution = fz_atoi(val); + if (fz_has_option(ctx, args, "width", &val)) + opts->width = fz_atoi(val); + if (fz_has_option(ctx, args, "height", &val)) + opts->height = fz_atoi(val); + if (fz_has_option(ctx, args, "colorspace", &val)) + { + if (fz_option_eq(val, "gray") || fz_option_eq(val, "grey")) + opts->colorspace = fz_device_gray(ctx); + else if (fz_option_eq(val, "rgb")) + opts->colorspace = fz_device_rgb(ctx); + else if (fz_option_eq(val, "cmyk")) + opts->colorspace = fz_device_cmyk(ctx); + else + fz_throw(ctx, FZ_ERROR_GENERIC, "unknown colorspace in options"); + } + if (fz_has_option(ctx, args, "alpha", &val)) + opts->alpha = fz_option_eq(val, "yes"); + + /* Sanity check values */ + if (opts->x_resolution <= 0) opts->x_resolution = 96; + if (opts->y_resolution <= 0) opts->y_resolution = 96; + if (opts->width < 0) opts->width = 0; + if (opts->height < 0) opts->height = 0; + + return opts; +} + +fz_device * +fz_new_draw_device_with_options(fz_context *ctx, const fz_draw_options *opts, const fz_rect *mediabox, fz_pixmap **pixmap) +{ + float x_zoom = opts->x_resolution / 72.0f; + float y_zoom = opts->y_resolution / 72.0f; + int w = opts->width; + int h = opts->height; + fz_rect bounds; + fz_irect ibounds; + fz_matrix transform; + fz_device *dev; + + fz_pre_rotate(fz_scale(&transform, x_zoom, y_zoom), opts->rotate); + bounds = *mediabox; + fz_round_rect(&ibounds, fz_transform_rect(&bounds, &transform)); + + /* If width or height are set, we may need to adjust the transform */ + if (w || h) + { + float scalex = 1; + float scaley = 1; + if (w != 0) + scalex = w / (bounds.x1 - bounds.x0); + if (h != 0) + scaley = h / (bounds.y1 - bounds.y0); + if (scalex != scaley) + { + if (w == 0) + scalex = scaley; + else if (h == 0) + scaley = scalex; + else if (scalex > scaley) + scalex = scaley; + else + scaley = scalex; + } + if (scalex != 1 || scaley != 1) + { + fz_pre_scale(&transform, scalex, scaley); + bounds = *mediabox; + fz_round_rect(&ibounds, fz_transform_rect(&bounds, &transform)); + } + } + + *pixmap = fz_new_pixmap_with_bbox(ctx, opts->colorspace, &ibounds, opts->alpha); + fz_try(ctx) + { + fz_set_pixmap_resolution(ctx, *pixmap, opts->x_resolution, opts->y_resolution); + if (opts->alpha) + fz_clear_pixmap(ctx, *pixmap); + else + fz_clear_pixmap_with_value(ctx, *pixmap, 255); + + dev = fz_new_draw_device(ctx, &transform, *pixmap); + } + fz_catch(ctx) + { + fz_drop_pixmap(ctx, *pixmap); + *pixmap = NULL; + fz_rethrow(ctx); + } + return dev; +} |