diff options
Diffstat (limited to 'render/pixmap.c')
| -rw-r--r-- | render/pixmap.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/render/pixmap.c b/render/pixmap.c new file mode 100644 index 00000000..57402d81 --- /dev/null +++ b/render/pixmap.c @@ -0,0 +1,60 @@ +#include <fitz.h> + +fz_error * +fz_newpixmap(fz_pixmap **pixp, int x, int y, int w, int h, int n, int a) +{ + fz_pixmap *pix; + + pix = *pixp = fz_malloc(sizeof (fz_pixmap)); + if (!pix) + return fz_outofmem; + + pix->x = x; + pix->y = y; + pix->w = w; + pix->h = h; + pix->n = n; + pix->a = a; + pix->cs = nil; + pix->stride = (pix->n + pix->a) * pix->w; + + pix->samples = fz_malloc(sizeof(short) * pix->stride * pix->h); + if (!pix->samples) { + fz_free(pix); + return fz_outofmem; + } + + memset(pix->samples, 0, sizeof(short) * pix->stride * pix->h); + + return nil; +} + +void +fz_freepixmap(fz_pixmap *pix) +{ + fz_free(pix->samples); + fz_free(pix); +} + +void +fz_clearpixmap(fz_pixmap *pix) +{ + memset(pix->samples, 0, sizeof(short) * pix->stride * pix->h); +} + +void +fz_debugpixmap(fz_pixmap *pix) +{ + int x, y; + FILE *f = fopen("out.ppm", "w"); + fprintf(f, "P6\n%d %d\n255\n", pix->w, pix->h); + for (y = 0; y < pix->h; y++) + for (x = 0; x < pix->w; x++) + { + putc(255 - pix->samples[x + y * pix->stride], f); + putc(255 - pix->samples[x + y * pix->stride], f); + putc(255 - pix->samples[x + y * pix->stride], f); + } + fclose(f); +} + |