Some utility functions for OpenGL graphics. More...

#include <geogram_gfx/basic/common.h>
#include <geogram_gfx/api/defs.h>
#include <geogram_gfx/third_party/glad/glad.h>
#include <geogram_gfx/GLUP/GLUP.h>
#include <geogram/basic/geometry.h>

Namespaces
namespace	GEO
	Global Vorpaline namespace.

Macros
#define	GEO_GL_TEXTURE_3D

#define	GEO_GL_140

#define	GEO_GL_150

#define	GEO_GL_440

#define	GEO_GL_ES2

#define	GEO_CHECK_GL()
	Tests for OpenGL errors.

Functions
void GEOGRAM_GFX_API	GEO::GL::initialize ()
	Initializes some GL functions and objects.

void GEOGRAM_GFX_API	GEO::GL::terminate ()
	Terminates GL functions and objects.

void	GEO::glupVertex (const vec2 &v)
	Sends a vertex to OpenGL.

void	GEO::glupColor (const vec3 &v)
	Sends a RGB color to OpenGL.

void	GEO::glupTexCoord (const vec2 &v)
	Sends 2d texture coordinates to OpenGL.

void	GEO::glupTranslate (const vec3 &v)
	Applies a translation.

void GEOGRAM_GFX_API	GEO::glupMapTexCoords1d (double minval, double maxval, index_t mult=1)
	Maps texture coordinates from a specified interval to the unit interval.

void GEOGRAM_GFX_API	GEO::glupMultMatrix (const mat4 &m)
	Multiplies the current GLUP matrix with another one.

void GEOGRAM_GFX_API	GEO::glupLoadMatrix (const mat4 &m)
	Replaces the current GLUP matrix with a user defined one.

GLint64 GEOGRAM_GFX_API	GEO::get_size_of_bound_buffer_object (GLenum target)
	Gets the size (in bytes) of the OpenGL buffer bound to a specified target.

void GEOGRAM_GFX_API	GEO::update_buffer_object (GLuint &buffer_id, GLenum target, size_t new_size, const void *data)
	Updates the content of an OpenGL buffer object, and resizes it if need be.

void GEOGRAM_GFX_API	GEO::stream_buffer_object (GLuint &buffer_id, GLenum target, size_t new_size, const void *data)
	Updates the content of an OpenGL buffer object in streaming mode.

void GEOGRAM_GFX_API	GEO::update_or_check_buffer_object (GLuint &buffer_id, GLenum target, size_t new_size, const void *data, bool update)
	Updates the content of an OpenGL buffer object, and resizes it if need be, or tests whether it has the size it should have.

void GEOGRAM_GFX_API	GEO::check_gl (const char *file, int line, bool warning_only=false)
	Tests for OpenGL errors and displays a message if OpenGL errors were encountered.

void GEOGRAM_GFX_API	GEO::clear_gl_error_flags (const char *file, int line)
	Clears all error flags set by previous OpenGL calls.

void GEOGRAM_GFX_API	GEO::draw_unit_textured_quad (bool BW=false)
	Draws a textured quad.

void GEOGRAM_GFX_API	GEO::glTexImage2Dxpm (char const const xpm_data)

Detailed Description

Some utility functions for OpenGL graphics.

Definition in file GL.h.

Macro Definition Documentation

◆ GEO_CHECK_GL

#define GEO_CHECK_GL ( )

Tests for OpenGL errors.

If an OpenGL error was flagged, display it together with current file and line number.

Definition at line 367 of file GL.h.

◆ GEO_GL_140

#define GEO_GL_140

Definition at line 75 of file GL.h.

◆ GEO_GL_150

#define GEO_GL_150

Definition at line 76 of file GL.h.

◆ GEO_GL_440

#define GEO_GL_440

Definition at line 77 of file GL.h.

◆ GEO_GL_ES2

#define GEO_GL_ES2

Definition at line 78 of file GL.h.

◆ GEO_GL_TEXTURE_3D

#define GEO_GL_TEXTURE_3D

Definition at line 74 of file GL.h.

Function Documentation

◆ initialize()

void GEOGRAM_GFX_API GEO::GL::initialize ( )

Initializes some GL functions and objects.

Called by GEO::Graphics::initialize()

◆ terminate()

void GEOGRAM_GFX_API GEO::GL::terminate ( )

Terminates GL functions and objects.

Called by GEO::Graphics::terminate()

Namespaces

Macros

Functions