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- trying to fix bug 2781865

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git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1385 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
jtsiomb 2012-08-07 11:15:01 +00:00
parent d598173a25
commit 03fea19290
1 changed files with 17 additions and 10 deletions
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27
freeglut/freeglut/progs/demos/smooth_opengl3/smooth_opengl3.c
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@ -52,7 +52,7 @@
void checkError(const char *functionName)
{
GLenum error;
while (( error = glGetError() ) != GL_NO_ERROR) {
while (( error = glGetError() ) != GL_NO_ERROR) {
fprintf (stderr, "GL error 0x%X detected in %s\n", error, functionName);
}
}
@ -98,11 +98,17 @@ typedef char ourGLchar;
#define APIENTRY
#endif
typedef void (APIENTRY *PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
#ifndef GL_ARB_vertex_array_object
typedef void (APIENTRY *PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
typedef void (APIENTRY *PFNGLBINDVERTEXARRAYPROC) (GLuint array);
#endif
#ifndef GL_VERSION_1_5
typedef void (APIENTRY *PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
typedef void (APIENTRY *PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
typedef void (APIENTRY *PFNGLBUFFERDATAPROC) (GLenum target, ourGLsizeiptr size, const GLvoid *data, GLenum usage);
#endif
#ifndef GL_VERSION_2_0
typedef GLuint (APIENTRY *PFNGLCREATESHADERPROC) (GLenum type);
typedef void (APIENTRY *PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const ourGLchar **string, const GLint *length);
typedef void (APIENTRY *PFNGLCOMPILESHADERPROC) (GLuint shader);
@ -119,8 +125,9 @@ typedef void (APIENTRY *PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size,
typedef void (APIENTRY *PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
typedef GLint (APIENTRY *PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const ourGLchar *name);
typedef void (APIENTRY *PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
#endif
PFNGLGENVERTEXARRAYSPROC gl_GenVertexArrays;
PFNGLGENVERTEXARRAYSPROC gl_GenVertexArrays;
PFNGLBINDVERTEXARRAYPROC gl_BindVertexArray;
PFNGLGENBUFFERSPROC gl_GenBuffers;
PFNGLBINDBUFFERPROC gl_BindBuffer;
@ -142,9 +149,9 @@ PFNGLENABLEVERTEXATTRIBARRAYPROC gl_EnableVertexAttribArray;
PFNGLGETUNIFORMLOCATIONPROC gl_GetUniformLocation;
PFNGLUNIFORMMATRIX4FVPROC gl_UniformMatrix4fv;
void initExtensionEntries(void)
void initExtensionEntries(void)
{
gl_GenVertexArrays = (PFNGLGENVERTEXARRAYSPROC) glutGetProcAddress ("glGenVertexArrays");
gl_GenVertexArrays = (PFNGLGENVERTEXARRAYSPROC) glutGetProcAddress ("glGenVertexArrays");
gl_BindVertexArray = (PFNGLBINDVERTEXARRAYPROC) glutGetProcAddress ("glBindVertexArray");
gl_GenBuffers = (PFNGLGENBUFFERSPROC) glutGetProcAddress ("glGenBuffers");
gl_BindBuffer = (PFNGLBINDBUFFERPROC) glutGetProcAddress ("glBindBuffer");
@ -194,11 +201,11 @@ GLuint vertexArrayName;
void initBuffer(void)
{
/* Need to setup a vertex array as otherwise invalid operation errors can
* occur when accessing vertex buffer (OpenGL 3.3 has no default zero named
* vertex array)
*/
gl_GenVertexArrays(1, &vertexArrayName);
/* Need to setup a vertex array as otherwise invalid operation errors can
* occur when accessing vertex buffer (OpenGL 3.3 has no default zero named
* vertex array)
*/
gl_GenVertexArrays(1, &vertexArrayName);
gl_BindVertexArray(vertexArrayName);
gl_GenBuffers (1, &vertexBufferName);