diff options
| author | Brian Paul <[email protected]> | 2003-06-13 21:49:46 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2003-06-13 21:49:46 +0000 |
| commit | 225517aff0afc3270fab277d1c9ac2864053820c (patch) | |
| tree | fa00e2b162788b4fe2ebb9254baf6526997c9903 /src/glut/os2/glut_bitmap.cpp | |
| parent | 8fa507592b7bdb087c9eb32ed2322cb805b724ec (diff) | |
GLUT for OS/2 (Evgeny Kotsuba)
Diffstat (limited to 'src/glut/os2/glut_bitmap.cpp')
| -rw-r--r-- | src/glut/os2/glut_bitmap.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/glut/os2/glut_bitmap.cpp b/src/glut/os2/glut_bitmap.cpp new file mode 100644 index 00000000000..789a89ae73e --- /dev/null +++ b/src/glut/os2/glut_bitmap.cpp @@ -0,0 +1,57 @@ +
+/* Copyright (c) Mark J. Kilgard, 1994. */
+
+/* This program is freely distributable without licensing fees
+ and is provided without guarantee or warrantee expressed or
+ implied. This program is -not- in the public domain. */
+
+#include "glutint.h"
+#include "glutbitmap.h"
+
+void GLUTAPIENTRY
+glutBitmapCharacter(GLUTbitmapFont font, int c)
+{
+ const BitmapCharRec *ch;
+ BitmapFontPtr fontinfo;
+ GLint swapbytes, lsbfirst, rowlength;
+ GLint skiprows, skippixels, alignment;
+
+#if defined(_WIN32)
+ fontinfo = (BitmapFontPtr) __glutFont(font);
+#else
+ fontinfo = (BitmapFontPtr) font;
+#endif
+
+ if (c < fontinfo->first ||
+ c >= fontinfo->first + fontinfo->num_chars)
+ return;
+ ch = fontinfo->ch[c - fontinfo->first];
+ if (ch) {
+ /* Save current modes. */
+ glGetIntegerv(GL_UNPACK_SWAP_BYTES, &swapbytes);
+ glGetIntegerv(GL_UNPACK_LSB_FIRST, &lsbfirst);
+ glGetIntegerv(GL_UNPACK_ROW_LENGTH, &rowlength);
+ glGetIntegerv(GL_UNPACK_SKIP_ROWS, &skiprows);
+ glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &skippixels);
+ glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
+ /* Little endian machines (DEC Alpha for example) could
+ benefit from setting GL_UNPACK_LSB_FIRST to GL_TRUE
+ instead of GL_FALSE, but this would require changing the
+ generated bitmaps too. */
+ glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
+ glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glBitmap(ch->width, ch->height, ch->xorig, ch->yorig,
+ ch->advance, 0, ch->bitmap);
+ /* Restore saved modes. */
+ glPixelStorei(GL_UNPACK_SWAP_BYTES, swapbytes);
+ glPixelStorei(GL_UNPACK_LSB_FIRST, lsbfirst);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, rowlength);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, skiprows);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, skippixels);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
+ }
+}
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