AllegroGL 0.4.4

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texture.c File Reference

AllegroGL texture management. More...

`#include <string.h>`
`#include "alleggl.h"`
`#include "allglint.h"`
`#include <allegro/internal/aintern.h>`
`#include <GL/glu.h>`

Go to the source code of this file.

## Macros
#define | PREFIX_I "agl-tex INFO: "
#define | PREFIX_W "agl-tex WARNING: "
#define | PREFIX_E "agl-tex ERROR: "
#define | F(s) case s: return #s

## Functions
char const * | __allegro_gl_get_format_description (GLint format)
int | __allegro_gl_get_num_channels (GLenum format)
GLint | __allegro_gl_get_texture_format_ex (BITMAP *bmp, int flags)
GLenum | __allegro_gl_get_bitmap_type (BITMAP *bmp, int flags)
GLenum | __allegro_gl_get_bitmap_color_format (BITMAP *bmp, int flags)
static int | __allegro_gl_convert_flags (int flags)
static int | log2i (int n)
BITMAP * | __allegro_gl_munge_bitmap (int flags, BITMAP *bmp, int x, int y, int w, int h, GLint *type, GLint *format)
static GLuint | do_texture_upload (BITMAP *bmp, GLuint tex, GLint internal_format, GLint format, GLint type, int flags)
GLenum | allegro_gl_get_bitmap_type (BITMAP *bmp)
GLenum | allegro_gl_get_bitmap_color_format (BITMAP *bmp)
Texture routines
GLint | allegro_gl_get_texture_format (BITMAP *bmp)
| Returns the OpenGL internal texture format for this bitmap. More...
GLint | allegro_gl_set_texture_format (GLint format)
| Sets the color format you'd like OpenGL to use for its textures. More...
int | allegro_gl_use_mipmapping (int enable)
| Tell AllegroGL to use Mipmapping or not when generating textures via its functions. More...
int | allegro_gl_use_alpha_channel (int enable)
| Tell AllegroGL to use Alpha channel or not when generating textures via its functions. More...
int | allegro_gl_flip_texture (int enable)
| Tell AllegroGL to flip the texture vertically or not when generating textures via its functions, to conform to the usual OpenGL texture coordinate system (increasing upwards). More...
int | allegro_gl_check_texture_ex (int flags, BITMAP *bmp, GLint internal_format)
| Checks whether the specified bitmap is of the proper size for texturing. More...
int | allegro_gl_check_texture (BITMAP *bmp)
| Checks whether the specified bitmap is of the proper size for texturing. More...
GLuint | allegro_gl_make_texture_ex (int flags, BITMAP *bmp, GLint internal_format)
| Uploads an Allegro BITMAP to the GL driver as a texture. More...
GLuint | allegro_gl_make_texture (BITMAP *bmp)
| Uploads an Allegro BITMAP to the GL driver as a texture. More...
GLuint | allegro_gl_make_masked_texture (BITMAP *bmp)
| Uploads an Allegro BITMAP to the GL driver as a texture. More...

## Variables
static GLint | allegro_gl_opengl_internal_texture_format = -1
static int | allegro_gl_use_mipmapping_for_textures = 0
int | __allegro_gl_use_alpha = FALSE
int | __allegro_gl_flip_texture = TRUE
GLint | __allegro_gl_texture_read_format [5]
GLint | __allegro_gl_texture_components [5]

## Detailed Description

AllegroGL texture management.

Definition in file texture.c.