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author | marha <marha@users.sourceforge.net> | 2014-01-15 21:23:25 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2014-01-15 21:23:25 +0100 |
commit | 1b0fcca503ae9cf2d462b60770f96c794dfbb27a (patch) | |
tree | d08c81de02b94da202195d84c99e192bc24ae69e /mesalib/src/mesa/main/teximage.c | |
parent | aaeb8bf497c82efabc4f9b27c319042c0e72d816 (diff) | |
download | vcxsrv-1b0fcca503ae9cf2d462b60770f96c794dfbb27a.tar.gz vcxsrv-1b0fcca503ae9cf2d462b60770f96c794dfbb27a.tar.bz2 vcxsrv-1b0fcca503ae9cf2d462b60770f96c794dfbb27a.zip |
mesa xkeyboard-config xserver git update 15 jan 2014
xserver commit 2d2d49dab5c5718989de97d7227aac793479745e
xkeyboard-config commit 78af7aa79c6552924295644b911e45d07a0fcdad
mesa commit a05c596a00916ce6a9c9d35ff36cd1e401fddd43
Diffstat (limited to 'mesalib/src/mesa/main/teximage.c')
-rw-r--r-- | mesalib/src/mesa/main/teximage.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c index 9c3f1e86e..8aac54e9d 100644 --- a/mesalib/src/mesa/main/teximage.c +++ b/mesalib/src/mesa/main/teximage.c @@ -1088,6 +1088,93 @@ _mesa_get_texture_dimensions(GLenum target) /** + * Check if a texture target can have more than one layer. + */ +GLboolean +_mesa_tex_target_is_layered(GLenum target) +{ + switch (target) { + case GL_TEXTURE_1D: + case GL_PROXY_TEXTURE_1D: + case GL_TEXTURE_2D: + case GL_PROXY_TEXTURE_2D: + case GL_TEXTURE_RECTANGLE: + case GL_PROXY_TEXTURE_RECTANGLE: + case GL_TEXTURE_2D_MULTISAMPLE: + case GL_PROXY_TEXTURE_2D_MULTISAMPLE: + case GL_TEXTURE_BUFFER: + case GL_TEXTURE_CUBE_MAP_POSITIVE_X: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: + case GL_TEXTURE_EXTERNAL_OES: + return GL_FALSE; + + case GL_TEXTURE_3D: + case GL_PROXY_TEXTURE_3D: + case GL_TEXTURE_CUBE_MAP: + case GL_PROXY_TEXTURE_CUBE_MAP: + case GL_TEXTURE_1D_ARRAY: + case GL_PROXY_TEXTURE_1D_ARRAY: + case GL_TEXTURE_2D_ARRAY: + case GL_PROXY_TEXTURE_2D_ARRAY: + case GL_TEXTURE_CUBE_MAP_ARRAY: + case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY: + case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: + case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY: + return GL_TRUE; + + default: + assert(!"Invalid texture target."); + return GL_FALSE; + } +} + + +/** + * Return the number of layers present in the given level of an array, + * cubemap or 3D texture. If the texture is not layered return zero. + */ +GLuint +_mesa_get_texture_layers(const struct gl_texture_object *texObj, GLint level) +{ + assert(level >= 0 && level < MAX_TEXTURE_LEVELS); + + switch (texObj->Target) { + case GL_TEXTURE_1D: + case GL_TEXTURE_2D: + case GL_TEXTURE_RECTANGLE: + case GL_TEXTURE_2D_MULTISAMPLE: + case GL_TEXTURE_BUFFER: + case GL_TEXTURE_EXTERNAL_OES: + return 0; + + case GL_TEXTURE_CUBE_MAP: + return 6; + + case GL_TEXTURE_1D_ARRAY: { + struct gl_texture_image *img = texObj->Image[0][level]; + return img ? img->Height : 0; + } + + case GL_TEXTURE_3D: + case GL_TEXTURE_2D_ARRAY: + case GL_TEXTURE_CUBE_MAP_ARRAY: + case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: { + struct gl_texture_image *img = texObj->Image[0][level]; + return img ? img->Depth : 0; + } + + default: + assert(!"Invalid texture target."); + return 0; + } +} + + +/** * Return the maximum number of mipmap levels for the given target * and the dimensions. * The dimensions are expected not to include the border. |