vo_gl: Move the read_pnm function into a separate file

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@32513 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 1 insertions, 60 deletions

diff --git a/libvo/gl_common.c b/libvo/gl_common.c
index 048f3185ce..8d0036ef0d 100644
--- a/libvo/gl_common.c
+++ b/libvo/gl_common.c
@@ -41,6 +41,7 @@
 #include "gl_common.h"
 #include "csputils.h"
 #include "aspect.h"
+#include "pnm_loader.h"
 
 void (GLAPIENTRY *mpglBegin)(GLenum);
 void (GLAPIENTRY *mpglEnd)(void);
@@ -559,66 +560,6 @@ void glCreateClearTex(GLenum target, GLenum fmt, GLenum format, GLenum type, GLi
 }
 
 /**
- * \brief skips whitespace and comments
- * \param f file to read from
- */
-static void ppm_skip(FILE *f) {
-  int c, comment = 0;
-  do {
-    c = fgetc(f);
-    if (c == '#')
-      comment = 1;
-    if (c == '\n')
-      comment = 0;
-  } while (c != EOF && (isspace(c) || comment));
-  if (c != EOF)
-    ungetc(c, f);
-}
-
-#define MAXDIM (16 * 1024)
-
-static uint8_t *read_pnm(FILE *f, int *width, int *height,
-                         int *bytes_per_pixel, int *maxval) {
-  uint8_t *data;
-  int type;
-  unsigned w, h, m, val, bpp;
-  *width = *height = *bytes_per_pixel = *maxval = 0;
-  ppm_skip(f);
-  if (fgetc(f) != 'P')
-    return NULL;
-  type = fgetc(f);
-  if (type != '5' && type != '6')
-    return NULL;
-  ppm_skip(f);
-  if (fscanf(f, "%u", &w) != 1)
-    return NULL;
-  ppm_skip(f);
-  if (fscanf(f, "%u", &h) != 1)
-    return NULL;
-  ppm_skip(f);
-  if (fscanf(f, "%u", &m) != 1)
-    return NULL;
-  val = fgetc(f);
-  if (!isspace(val))
-    return NULL;
-  if (w > MAXDIM || h > MAXDIM)
-    return NULL;
-  bpp = (m > 255) ? 2 : 1;
-  if (type == '6')
-    bpp *= 3;
-  data = malloc(w * h * bpp);
-  if (fread(data, w * bpp, h, f) != h) {
-    free(data);
-    return NULL;
-  }
-  *width  = w;
-  *height = h;
-  *bytes_per_pixel = bpp;
-  *maxval = m;
-  return data;
-}
-
-/**
  * \brief creates a texture from a PPM file
  * \param target texture taget, usually GL_TEXTURE_2D
  * \param fmt internal texture format, 0 for default