mirror of
https://github.com/brl/mutter.git
synced 2024-12-12 14:20:17 +00:00
dff84094ff
* clutter/cogl/common/cogl-clip-stack.h: * clutter/cogl/common/cogl-clip-stack.c: Added functions to maintain a stack of clipping rectangles. * clutter/cogl/gles/cogl.c: * clutter/cogl/gl/cogl.c: The cogl_clip_set and unset functions have moved into cogl-clip-stack.c which calls back to cogl.c to set the actual rectangles. Multiple clip rectangles are combined by merging the stencil buffers. * clutter/cogl/gles/cogl-primitives.c (_cogl_path_fill_nodes): * clutter/cogl/gl/cogl-primitives.c (_cogl_path_fill_nodes): Merge the stencil buffer with the contents of the clipping stack after drawing the path. * clutter/cogl/gles/cogl-context.h (CoglContext): * clutter/cogl/gl/cogl-context.h (CoglContext): Store the number of available stencil bits. * clutter/cogl/common/Makefile.am (libclutter_cogl_common_la_SOURCES): Added cogl-clip-stack.c
95 lines
2.5 KiB
C
95 lines
2.5 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"
|
|
|
|
#include "cogl-gles2-wrapper.h"
|
|
|
|
typedef struct
|
|
{
|
|
GLfixed v[3];
|
|
GLfixed t[2];
|
|
GLfixed c[4];
|
|
} CoglTextureGLVertex;
|
|
|
|
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;
|
|
|
|
/* Primitives */
|
|
CoglFixedVec2 path_start;
|
|
CoglFixedVec2 path_pen;
|
|
CoglFixedVec2 *path_nodes;
|
|
guint path_nodes_cap;
|
|
guint path_nodes_size;
|
|
CoglFixedVec2 path_nodes_min;
|
|
CoglFixedVec2 path_nodes_max;
|
|
|
|
/* Cache of inverse projection matrix */
|
|
ClutterFixed inverse_projection[16];
|
|
|
|
/* Textures */
|
|
GArray *texture_handles;
|
|
CoglTextureGLVertex *texture_vertices;
|
|
gulong texture_vertices_size;
|
|
|
|
/* Framebuffer objects */
|
|
GArray *fbo_handles;
|
|
CoglBufferTarget draw_buffer;
|
|
|
|
/* Shaders */
|
|
GArray *program_handles;
|
|
GArray *shader_handles;
|
|
|
|
#ifdef HAVE_COGL_GLES2
|
|
CoglGles2Wrapper gles2;
|
|
#endif
|
|
|
|
} 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 */
|