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author | marha <marha@users.sourceforge.net> | 2014-01-15 21:37:10 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2014-01-15 21:37:10 +0100 |
commit | b7f01cb1f6cfd1ec301f650a073436c91ec614aa (patch) | |
tree | 1dbf32344313ad7e5884e6686251cad398a231fa /mesalib/src/mesa/main/teximage.c | |
parent | 7b4b94b4449aec056c4c92f5cacc2f89a292a80e (diff) | |
parent | 1b0fcca503ae9cf2d462b60770f96c794dfbb27a (diff) | |
download | vcxsrv-b7f01cb1f6cfd1ec301f650a073436c91ec614aa.tar.gz vcxsrv-b7f01cb1f6cfd1ec301f650a073436c91ec614aa.tar.bz2 vcxsrv-b7f01cb1f6cfd1ec301f650a073436c91ec614aa.zip |
Merge remote-tracking branch 'origin/released'
* origin/released:
mesa xkeyboard-config xserver git update 15 jan 2014
randrproto libfontenc mesa xserver git update 10 Jan 2014
randsrproto fontconfig libX11 git update 6 Jan 2014
Conflicts:
mesalib/src/glsl/builtin_functions.cpp
mesalib/src/glsl/ir_builder.h
xorg-server/Xext/xres.c
xorg-server/dix/dispatch.c
xorg-server/dix/dixfonts.c
xorg-server/hw/xwin/wingc.c
xorg-server/hw/xwin/winwindowswm.c
xorg-server/include/gc.h
xorg-server/os/access.c
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. |