mutter/clutter/cogl/gl/cogl-context.c
Robert Bragg 39aa5c27b5 A comparison of gl/cogl-texture.c and gles/cogl-texture.c, to reduce
differences and improve maintainability.

	* clutter/cogl/gl/cogl-context.h:
	Adds a CoglTextureGLVertex typedef + texture_vertices and
	texture_vertices_size members to CoglContext for using vertex arrays
	like GLES does

	* clutter/cogl/gl/cogl-context.c:
	Initializes texture_vertices + texture_vertices_size members

	* clutter/cogl/gl/cogl-internal.h:
	Adds COGL_ENABLE_COLOR_ARRAY

	* clutter/cogl/gl/cogl.c:
	Add COGL_ENABLE_COLOR_ARRAY support to cogl_enable

	* clutter/cogl/gles/cogl-context.h:
	Change the CoglTextureGLVertex to use GLfloat for the position
	and texture coord attributes and GLubyte for the color.

	* clutter/cogl/gles/cogl-texture-private.h:
	Adds a wrap_mode member like GL has.

	* clutter/cogl/gl/cogl-texture.c
	* clutter/cogl/gles/cogl-texture.c:
	Improves the comparability of the files, such that the remaining
	differences, better reflect the fundamental differences needed
	between GL and GLES. Notably GL no longer uses glBegin/glEnd for
	submitting vertices, it uses vertex arrays like GLES and this gives
	a small but measurable fps improvement for test-text.
2008-11-18 16:24:09 +00:00

154 lines
4.4 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl.h"
#include "cogl-internal.h"
#include "cogl-util.h"
#include "cogl-context.h"
#include <string.h>
static CoglContext *_context = NULL;
gboolean
cogl_create_context ()
{
if (_context != NULL)
return FALSE;
/* Allocate context memory */
_context = (CoglContext*) g_malloc (sizeof (CoglContext));
/* Init default values */
_context->feature_flags = 0;
_context->features_cached = FALSE;
_context->enable_flags = 0;
_context->color_alpha = 255;
_context->path_nodes = NULL;
_context->path_nodes_cap = 0;
_context->path_nodes_size = 0;
_context->texture_handles = NULL;
_context->texture_vertices_size = 0;
_context->texture_vertices = NULL;
_context->fbo_handles = NULL;
_context->draw_buffer = COGL_WINDOW_BUFFER;
_context->blend_src_factor = CGL_SRC_ALPHA;
_context->blend_dst_factor = CGL_ONE_MINUS_SRC_ALPHA;
_context->shader_handles = NULL;
_context->program_handles = NULL;
_context->mesh_handles = NULL;
_context->pf_glGenRenderbuffersEXT = NULL;
_context->pf_glBindRenderbufferEXT = NULL;
_context->pf_glRenderbufferStorageEXT = NULL;
_context->pf_glGenFramebuffersEXT = NULL;
_context->pf_glBindFramebufferEXT = NULL;
_context->pf_glFramebufferTexture2DEXT = NULL;
_context->pf_glFramebufferRenderbufferEXT = NULL;
_context->pf_glCheckFramebufferStatusEXT = NULL;
_context->pf_glDeleteFramebuffersEXT = NULL;
_context->pf_glBlitFramebufferEXT = NULL;
_context->pf_glRenderbufferStorageMultisampleEXT = NULL;
_context->pf_glCreateProgramObjectARB = NULL;
_context->pf_glCreateShaderObjectARB = NULL;
_context->pf_glShaderSourceARB = NULL;
_context->pf_glCompileShaderARB = NULL;
_context->pf_glAttachObjectARB = NULL;
_context->pf_glLinkProgramARB = NULL;
_context->pf_glUseProgramObjectARB = NULL;
_context->pf_glGetUniformLocationARB = NULL;
_context->pf_glDeleteObjectARB = NULL;
_context->pf_glGetInfoLogARB = NULL;
_context->pf_glGetObjectParameterivARB = NULL;
_context->pf_glUniform1fARB = NULL;
_context->pf_glUniform2fARB = NULL;
_context->pf_glUniform3fARB = NULL;
_context->pf_glUniform4fARB = NULL;
_context->pf_glUniform1fvARB = NULL;
_context->pf_glUniform2fvARB = NULL;
_context->pf_glUniform3fvARB = NULL;
_context->pf_glUniform4fvARB = NULL;
_context->pf_glUniform1iARB = NULL;
_context->pf_glUniform2iARB = NULL;
_context->pf_glUniform3iARB = NULL;
_context->pf_glUniform4iARB = NULL;
_context->pf_glUniform1ivARB = NULL;
_context->pf_glUniform2ivARB = NULL;
_context->pf_glUniform3ivARB = NULL;
_context->pf_glUniform4ivARB = NULL;
_context->pf_glUniformMatrix2fvARB = NULL;
_context->pf_glUniformMatrix3fvARB = NULL;
_context->pf_glUniformMatrix4fvARB = NULL;
/* Init OpenGL state */
GE( glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) );
GE( glColorMask (TRUE, TRUE, TRUE, FALSE) );
GE( glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) );
cogl_enable (0);
return TRUE;
}
void
cogl_destroy_context ()
{
if (_context == NULL)
return;
if (_context->texture_handles)
g_array_free (_context->texture_handles, TRUE);
if (_context->fbo_handles)
g_array_free (_context->fbo_handles, TRUE);
if (_context->shader_handles)
g_array_free (_context->shader_handles, TRUE);
if (_context->program_handles)
g_array_free (_context->program_handles, TRUE);
g_free (_context);
}
CoglContext *
_cogl_context_get_default ()
{
/* Create if doesn't exist yet */
if (_context == NULL)
cogl_create_context ();
return _context;
}