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 <span id="projectnumber">0.4.4</span>
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<div class="title">texture.c File Reference</div> </div>
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<p>AllegroGL texture management.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <string.h></code><br />
<code>#include "<a class="el" href="alleggl_8h_source.html">alleggl.h</a>"</code><br />
<code>#include "allglint.h"</code><br />
<code>#include <allegro/internal/aintern.h></code><br />
<code>#include <GL/glu.h></code><br />
</div>
<p><a href="texture_8c_source.html">Go to the source code of this file.</a></p>
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Macros</h2></td></tr>
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#define </td><td class="memItemRight" valign="bottom"><b>PREFIX_I</b>   "agl-tex INFO: "</td></tr>
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#define </td><td class="memItemRight" valign="bottom"><b>PREFIX_W</b>   "agl-tex WARNING: "</td></tr>
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#define </td><td class="memItemRight" valign="bottom"><b>PREFIX_E</b>   "agl-tex ERROR: "</td></tr>
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#define </td><td class="memItemRight" valign="bottom"><b>F</b>(s)   case s: return #s</td></tr>
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Functions</h2></td></tr>
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char const * </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_get_format_description</b> (GLint format)</td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_get_num_channels</b> (GLenum format)</td></tr>
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GLint </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_get_texture_format_ex</b> (BITMAP *bmp, int flags)</td></tr>
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GLenum </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_get_bitmap_type</b> (BITMAP *bmp, int flags)</td></tr>
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GLenum </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_get_bitmap_color_format</b> (BITMAP *bmp, int flags)</td></tr>
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static int </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_convert_flags</b> (int flags)</td></tr>
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<tr class="memitem:adf4037de25874c6c39f5edf9790feb8b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adf4037de25874c6c39f5edf9790feb8b"></a>
static int </td><td class="memItemRight" valign="bottom"><b>log2i</b> (int n)</td></tr>
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BITMAP * </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_munge_bitmap</b> (int flags, BITMAP *bmp, int x, int y, int w, int h, GLint *type, GLint *format)</td></tr>
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static GLuint </td><td class="memItemRight" valign="bottom"><b>do_texture_upload</b> (BITMAP *bmp, GLuint tex, GLint internal_format, GLint format, GLint type, int flags)</td></tr>
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GLenum </td><td class="memItemRight" valign="bottom"><b>allegro_gl_get_bitmap_type</b> (BITMAP *bmp)</td></tr>
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GLenum </td><td class="memItemRight" valign="bottom"><b>allegro_gl_get_bitmap_color_format</b> (BITMAP *bmp)</td></tr>
<tr class="separator:ga83b2b13cb35dd4b4e9e874173a246581"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Texture routines</div></td></tr>
<tr class="memitem:ga2392fe7a8dd6db65532160821804aa68"><td class="memItemLeft" align="right" valign="top">GLint </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#ga2392fe7a8dd6db65532160821804aa68">allegro_gl_get_texture_format</a> (BITMAP *bmp)</td></tr>
<tr class="memdesc:ga2392fe7a8dd6db65532160821804aa68"><td class="mdescLeft"> </td><td class="mdescRight">Returns the OpenGL internal texture format for this bitmap. <a href="group__texture.html#ga2392fe7a8dd6db65532160821804aa68">More...</a><br /></td></tr>
<tr class="separator:ga2392fe7a8dd6db65532160821804aa68"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga5d535e8af776dd449cc4755b9e3585b1"><td class="memItemLeft" align="right" valign="top">GLint </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#ga5d535e8af776dd449cc4755b9e3585b1">allegro_gl_set_texture_format</a> (GLint format)</td></tr>
<tr class="memdesc:ga5d535e8af776dd449cc4755b9e3585b1"><td class="mdescLeft"> </td><td class="mdescRight">Sets the color format you'd like OpenGL to use for its textures. <a href="group__texture.html#ga5d535e8af776dd449cc4755b9e3585b1">More...</a><br /></td></tr>
<tr class="separator:ga5d535e8af776dd449cc4755b9e3585b1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab5393ecc10a2a31da7eb80c889af89ac"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#gab5393ecc10a2a31da7eb80c889af89ac">allegro_gl_use_mipmapping</a> (int enable)</td></tr>
<tr class="memdesc:gab5393ecc10a2a31da7eb80c889af89ac"><td class="mdescLeft"> </td><td class="mdescRight">Tell AllegroGL to use Mipmapping or not when generating textures via its functions. <a href="group__texture.html#gab5393ecc10a2a31da7eb80c889af89ac">More...</a><br /></td></tr>
<tr class="separator:gab5393ecc10a2a31da7eb80c889af89ac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga1d88f4ebc7ed1ecd65640b72ea46a71e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#ga1d88f4ebc7ed1ecd65640b72ea46a71e">allegro_gl_use_alpha_channel</a> (int enable)</td></tr>
<tr class="memdesc:ga1d88f4ebc7ed1ecd65640b72ea46a71e"><td class="mdescLeft"> </td><td class="mdescRight">Tell AllegroGL to use Alpha channel or not when generating textures via its functions. <a href="group__texture.html#ga1d88f4ebc7ed1ecd65640b72ea46a71e">More...</a><br /></td></tr>
<tr class="separator:ga1d88f4ebc7ed1ecd65640b72ea46a71e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3ec0a1c4c6656f13c8398bab7a1293f2"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#ga3ec0a1c4c6656f13c8398bab7a1293f2">allegro_gl_flip_texture</a> (int enable)</td></tr>
<tr class="memdesc:ga3ec0a1c4c6656f13c8398bab7a1293f2"><td class="mdescLeft"> </td><td class="mdescRight">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). <a href="group__texture.html#ga3ec0a1c4c6656f13c8398bab7a1293f2">More...</a><br /></td></tr>
<tr class="separator:ga3ec0a1c4c6656f13c8398bab7a1293f2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab0cf4dc0ddcb45f5b067d08aed1c88e6"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6">allegro_gl_check_texture_ex</a> (int flags, BITMAP *bmp, GLint internal_format)</td></tr>
<tr class="memdesc:gab0cf4dc0ddcb45f5b067d08aed1c88e6"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the specified bitmap is of the proper size for texturing. <a href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6">More...</a><br /></td></tr>
<tr class="separator:gab0cf4dc0ddcb45f5b067d08aed1c88e6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6996c14538e18b1614f91d34b2d4d691"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#ga6996c14538e18b1614f91d34b2d4d691">allegro_gl_check_texture</a> (BITMAP *bmp)</td></tr>
<tr class="memdesc:ga6996c14538e18b1614f91d34b2d4d691"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the specified bitmap is of the proper size for texturing. <a href="group__texture.html#ga6996c14538e18b1614f91d34b2d4d691">More...</a><br /></td></tr>
<tr class="separator:ga6996c14538e18b1614f91d34b2d4d691"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf3a48c555068e7051171255c1011150a"><td class="memItemLeft" align="right" valign="top">GLuint </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a> (int flags, BITMAP *bmp, GLint internal_format)</td></tr>
<tr class="memdesc:gaf3a48c555068e7051171255c1011150a"><td class="mdescLeft"> </td><td class="mdescRight">Uploads an Allegro BITMAP to the GL driver as a texture. <a href="group__texture.html#gaf3a48c555068e7051171255c1011150a">More...</a><br /></td></tr>
<tr class="separator:gaf3a48c555068e7051171255c1011150a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae071354f76bc28e1bafbd90bdecbc0c9"><td class="memItemLeft" align="right" valign="top">GLuint </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9">allegro_gl_make_texture</a> (BITMAP *bmp)</td></tr>
<tr class="memdesc:gae071354f76bc28e1bafbd90bdecbc0c9"><td class="mdescLeft"> </td><td class="mdescRight">Uploads an Allegro BITMAP to the GL driver as a texture. <a href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9">More...</a><br /></td></tr>
<tr class="separator:gae071354f76bc28e1bafbd90bdecbc0c9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaeb33dfbbc1725f5132c10ac32ef6800d"><td class="memItemLeft" align="right" valign="top">GLuint </td><td class="memItemRight" valign="bottom"><a class="el" href="group__texture.html#gaeb33dfbbc1725f5132c10ac32ef6800d">allegro_gl_make_masked_texture</a> (BITMAP *bmp)</td></tr>
<tr class="memdesc:gaeb33dfbbc1725f5132c10ac32ef6800d"><td class="mdescLeft"> </td><td class="mdescRight">Uploads an Allegro BITMAP to the GL driver as a texture. <a href="group__texture.html#gaeb33dfbbc1725f5132c10ac32ef6800d">More...</a><br /></td></tr>
<tr class="separator:gaeb33dfbbc1725f5132c10ac32ef6800d"><td class="memSeparator" colspan="2"> </td></tr>
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Variables</h2></td></tr>
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static GLint </td><td class="memItemRight" valign="bottom"><b>allegro_gl_opengl_internal_texture_format</b> = -1</td></tr>
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<tr class="memitem:a009ebd92a478864b1fdd5eeeb3df5f38"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a009ebd92a478864b1fdd5eeeb3df5f38"></a>
static int </td><td class="memItemRight" valign="bottom"><b>allegro_gl_use_mipmapping_for_textures</b> = 0</td></tr>
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<tr class="memitem:a4a21cbf7c33064409941c606e8ccda0a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4a21cbf7c33064409941c606e8ccda0a"></a>
int </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_use_alpha</b> = FALSE</td></tr>
<tr class="separator:a4a21cbf7c33064409941c606e8ccda0a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7e34e2c7cae7e9bb9ad7ddc130db47fb"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7e34e2c7cae7e9bb9ad7ddc130db47fb"></a>
int </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_flip_texture</b> = TRUE</td></tr>
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<tr class="memitem:a8416d9ed6c835ba6572ab1e29fe729f2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8416d9ed6c835ba6572ab1e29fe729f2"></a>
GLint </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_texture_read_format</b> [5]</td></tr>
<tr class="separator:a8416d9ed6c835ba6572ab1e29fe729f2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7e74a22ac957103e91218377585b1b76"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7e74a22ac957103e91218377585b1b76"></a>
GLint </td><td class="memItemRight" valign="bottom"><b>__allegro_gl_texture_components</b> [5]</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>AllegroGL texture management. </p>
<p>Definition in file <a class="el" href="texture_8c_source.html">texture.c</a>.</p>
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