mirror of
https://github.com/brl/mutter.git
synced 2024-11-23 08:30:42 -05:00
82d43ffe64
* clutter/cogl/gl/cogl-texture.c (cogl_texture_polygon) (_cogl_texture_quad_sw, _cogl_texture_quad_hw): * clutter/cogl/gles/cogl-texture.c (cogl_texture_polygon) (_cogl_texture_quad_sw, _cogl_texture_quad_hw): Enable backface culling in GL if it is requested. * clutter/cogl/gles/cogl-texture.c (_cogl_texture_quad_sw) (_cogl_texture_quad_hw): * clutter/cogl/gl/cogl-texture.c (_cogl_texture_quad_sw) (_cogl_texture_quad_hw): Reorder the vertices so that they are counter-clockwise. * clutter/cogl/gles/cogl-context.h (CoglContext): * clutter/cogl/gl/cogl-context.h (CoglContext): Added a flag to store whether backface culling is currently enabled. * clutter/cogl/gles/cogl.c (cogl_enable_backface_culling): * clutter/cogl/gl/cogl.c (cogl_enable_backface_culling): New function * doc/reference/cogl/cogl-sections.txt: Add cogl_enable_backface_culling
111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/*
|
|
* Clutter COGL
|
|
*
|
|
* A basic GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
*
|
|
* 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;
|
|
|
|
/* 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;
|
|
|
|
} 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 */
|