/* * Clutter COGL * * A basic GL/GLES Abstraction/Utility Layer * * Authored By Matthew Allum * * Copyright (C) 2007 OpenedHand * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __COGL_CONTEXT_H #define __COGL_CONTEXT_H #include "cogl-primitives.h" typedef struct { /* Features cache */ CoglFeatureFlags feature_flags; gboolean features_cached; GLint num_stencil_bits; /* Enable cache */ gulong enable_flags; guint8 color_alpha; COGLenum blend_src_factor; COGLenum blend_dst_factor; gboolean enable_backface_culling; /* Primitives */ CoglFixedVec2 path_start; CoglFixedVec2 path_pen; CoglFloatVec2 *path_nodes; guint path_nodes_cap; guint path_nodes_size; CoglFixedVec2 path_nodes_min; CoglFixedVec2 path_nodes_max; /* Cache of inverse projection matrix */ GLfloat inverse_projection[16]; /* Textures */ GArray *texture_handles; /* Framebuffer objects */ GArray *fbo_handles; CoglBufferTarget draw_buffer; /* Shaders */ GArray *shader_handles; /* Programs */ GArray *program_handles; /* Mesh */ GArray *mesh_handles; /* Relying on glext.h to define these */ COGL_PFNGLGENRENDERBUFFERSEXTPROC pf_glGenRenderbuffersEXT; COGL_PFNGLDELETERENDERBUFFERSEXTPROC pf_glDeleteRenderbuffersEXT; COGL_PFNGLBINDRENDERBUFFEREXTPROC pf_glBindRenderbufferEXT; COGL_PFNGLRENDERBUFFERSTORAGEEXTPROC pf_glRenderbufferStorageEXT; COGL_PFNGLGENFRAMEBUFFERSEXTPROC pf_glGenFramebuffersEXT; COGL_PFNGLBINDFRAMEBUFFEREXTPROC pf_glBindFramebufferEXT; COGL_PFNGLFRAMEBUFFERTEXTURE2DEXTPROC pf_glFramebufferTexture2DEXT; COGL_PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC pf_glFramebufferRenderbufferEXT; COGL_PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC pf_glCheckFramebufferStatusEXT; COGL_PFNGLDELETEFRAMEBUFFERSEXTPROC pf_glDeleteFramebuffersEXT; COGL_PFNGLBLITFRAMEBUFFEREXTPROC pf_glBlitFramebufferEXT; COGL_PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC pf_glRenderbufferStorageMultisampleEXT; COGL_PFNGLCREATEPROGRAMOBJECTARBPROC pf_glCreateProgramObjectARB; COGL_PFNGLCREATESHADEROBJECTARBPROC pf_glCreateShaderObjectARB; COGL_PFNGLSHADERSOURCEARBPROC pf_glShaderSourceARB; COGL_PFNGLCOMPILESHADERARBPROC pf_glCompileShaderARB; COGL_PFNGLATTACHOBJECTARBPROC pf_glAttachObjectARB; COGL_PFNGLLINKPROGRAMARBPROC pf_glLinkProgramARB; COGL_PFNGLUSEPROGRAMOBJECTARBPROC pf_glUseProgramObjectARB; COGL_PFNGLGETUNIFORMLOCATIONARBPROC pf_glGetUniformLocationARB; COGL_PFNGLDELETEOBJECTARBPROC pf_glDeleteObjectARB; COGL_PFNGLGETINFOLOGARBPROC pf_glGetInfoLogARB; COGL_PFNGLGETOBJECTPARAMETERIVARBPROC pf_glGetObjectParameterivARB; COGL_PFNGLUNIFORM1FARBPROC pf_glUniform1fARB; COGL_PFNGLVERTEXATTRIBPOINTERARBPROC pf_glVertexAttribPointerARB; COGL_PFNGLENABLEVERTEXATTRIBARRAYARBPROC pf_glEnableVertexAttribArrayARB; COGL_PFNGLDISABLEVERTEXATTRIBARRAYARBPROC pf_glDisableVertexAttribArrayARB; COGL_PFNGLGENBUFFERSARBPROC pf_glGenBuffersARB; COGL_PFNGLBINDBUFFERARBPROC pf_glBindBufferARB; COGL_PFNGLBUFFERDATAARBPROC pf_glBufferDataARB; COGL_PFNGLBUFFERDATASUBARBPROC pf_glBufferDataSubARB; COGL_PFNGLMAPBUFFERARBPROC pf_glMapBufferARB; COGL_PFNGLUNMAPBUFFERARBPROC pf_glUnmapBufferARB; COGL_PFNGLDELETEBUFFERSARBPROC pf_glDeleteBuffersARB; } CoglContext; CoglContext * _cogl_context_get_default (); /* Obtains the context and returns retval if NULL */ #define _COGL_GET_CONTEXT(ctxvar, retval) \ CoglContext *ctxvar = _cogl_context_get_default (); \ if (ctxvar == NULL) return retval; #define NO_RETVAL #endif /* __COGL_CONTEXT_H */