diff options
author | Roland Scheidegger <[email protected]> | 2009-06-20 00:24:03 +0200 |
---|---|---|
committer | Roland Scheidegger <[email protected]> | 2009-06-20 00:28:38 +0200 |
commit | 7a5c5b9af3699f55b5c5be170a791f1ac2e05457 (patch) | |
tree | ed000f6297794f7c4e643d254d28af542770a498 /progs/demos | |
parent | dd26899ca39111e0866afed9df94bfb1618dd363 (diff) |
demos: make cubemap work without EXT_fbo support
use SGIS_generate_mipmap if EXT_fbo support (for manual mipmap generation)
is not available.
Diffstat (limited to 'progs/demos')
-rw-r--r-- | progs/demos/cubemap.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/progs/demos/cubemap.c b/progs/demos/cubemap.c index 26db42aed5e..1f9f2905759 100644 --- a/progs/demos/cubemap.c +++ b/progs/demos/cubemap.c @@ -52,6 +52,7 @@ static GLboolean NoClear = GL_FALSE; static GLint FrameParity = 0; static GLenum FilterIndex = 0; static GLint ClampIndex = 0; +static GLboolean supportFBO = GL_FALSE; static struct { @@ -403,6 +404,10 @@ static void init_checkers( void ) glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + if (!supportFBO) + glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_GENERATE_MIPMAP_SGIS, GL_TRUE); + + /* make colored checkerboard cube faces */ for (f = 0; f < 6; f++) { for (i = 0; i < CUBE_TEX_SIZE; i++) { @@ -426,7 +431,8 @@ static void init_checkers( void ) GL_BGRA, GL_UNSIGNED_BYTE, image); } - glGenerateMipmapEXT(GL_TEXTURE_CUBE_MAP_ARB); + if (supportFBO) + glGenerateMipmapEXT(GL_TEXTURE_CUBE_MAP_ARB); } @@ -503,10 +509,13 @@ static void init( GLboolean useImageFiles ) exit(0); } - /* Needed for glGenerateMipmapEXT + /* Needed for glGenerateMipmapEXT / auto mipmapping */ - if (!strstr(exten, "GL_EXT_framebuffer_object")) { - printf("Sorry, this demo requires GL_EXT_framebuffer_object\n"); + if (strstr(exten, "GL_EXT_framebuffer_object")) { + supportFBO = GL_TRUE; + } + else if (!strstr(exten, "GL_SGIS_generate_mipmap")) { + printf("Sorry, this demo requires GL_EXT_framebuffer_object or GL_SGIS_generate_mipmap\n"); exit(0); } } |