944423a8d9
cogl_push_draw_buffer, cogl_set_draw_buffer and cogl_pop_draw_buffer are now
deprecated and new code should use the new cogl_framebuffer_* API instead.
Code that previously did:
cogl_push_draw_buffer ();
cogl_set_draw_buffer (COGL_OFFSCREEN_BUFFER, buffer);
/* draw */
cogl_pop_draw_buffer ();
should now be re-written as:
cogl_push_framebuffer (buffer);
/* draw */
cogl_pop_framebuffer ();
As can be seen from the example above the rename has been used as an
opportunity to remove the redundant target argument from
cogl_set_draw_buffer; it now only takes one call to redirect to an offscreen
buffer, and finally the term framebuffer may be a bit more familiar to
anyone coming from an OpenGL background.
128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009 Intel Corporation.
|
|
*
|
|
* 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-internal.h"
|
|
#include "cogl-context-driver.h"
|
|
#include "cogl-primitives.h"
|
|
#include "cogl-clip-stack.h"
|
|
#include "cogl-matrix-stack.h"
|
|
#include "cogl-material-private.h"
|
|
|
|
typedef struct
|
|
{
|
|
GLfloat v[3];
|
|
GLfloat t[2];
|
|
GLubyte c[4];
|
|
} CoglTextureGLVertex;
|
|
|
|
typedef struct
|
|
{
|
|
/* Features cache */
|
|
CoglFeatureFlags feature_flags;
|
|
gboolean features_cached;
|
|
|
|
CoglHandle default_material;
|
|
|
|
/* Enable cache */
|
|
gulong enable_flags;
|
|
guint8 color_alpha;
|
|
|
|
gboolean enable_backface_culling;
|
|
CoglFrontWinding flushed_front_winding;
|
|
|
|
gboolean indirect;
|
|
|
|
/* A few handy matrix constants */
|
|
CoglMatrix identity_matrix;
|
|
CoglMatrix y_flip_matrix;
|
|
|
|
/* Client-side matrix stack or NULL if none */
|
|
CoglMatrixMode flushed_matrix_mode;
|
|
GList *texture_units;
|
|
|
|
/* Materials */
|
|
CoglHandle simple_material;
|
|
CoglHandle source_material;
|
|
|
|
/* Textures */
|
|
CoglHandle default_gl_texture_2d_tex;
|
|
CoglHandle default_gl_texture_rect_tex;
|
|
|
|
/* Batching geometry... */
|
|
/* We journal the texture rectangles we want to submit to OpenGL so
|
|
* we have an oppertunity to optimise the final order so that we
|
|
* can batch things together. */
|
|
GArray *journal;
|
|
GArray *logged_vertices;
|
|
GArray *polygon_vertices;
|
|
|
|
/* Some simple caching, to minimize state changes... */
|
|
CoglHandle current_material;
|
|
gulong current_material_flags;
|
|
CoglMaterialFlushOptions current_material_flush_options;
|
|
GArray *current_layers;
|
|
guint n_texcoord_arrays_enabled;
|
|
|
|
/* Framebuffers */
|
|
GSList *framebuffer_stack;
|
|
CoglHandle window_buffer;
|
|
gboolean dirty_bound_framebuffer;
|
|
gboolean dirty_gl_viewport;
|
|
|
|
/* Primitives */
|
|
floatVec2 path_start;
|
|
floatVec2 path_pen;
|
|
GArray *path_nodes;
|
|
guint last_path;
|
|
floatVec2 path_nodes_min;
|
|
floatVec2 path_nodes_max;
|
|
CoglHandle stencil_material;
|
|
|
|
/* Pre-generated VBOs containing indices to generate GL_TRIANGLES
|
|
out of a vertex array of quads */
|
|
CoglHandle quad_indices_byte;
|
|
guint quad_indices_short_len;
|
|
CoglHandle quad_indices_short;
|
|
|
|
gboolean in_begin_gl_block;
|
|
|
|
CoglHandle texture_download_material;
|
|
|
|
CoglContextDriver drv;
|
|
} 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 */
|