mutter/cogl/cogl-internal.h
Neil Roberts 6400b455b8 Don't include any GL header from the public GL headers
This splits the GL header inclusion from cogl-defines.h into a
separate headear called cogl-gl-header.h which we will only include
internally. That way we don't leak GL declarations out of our public
headers. The texture functions that were using GLenum and GLuint in
the public header have now changed to just use unsigned int. Note
however that if an EGL winsys is enabled then it will still publicly
include an EGL header. This is a bit more awkward to fix because we
have public API which returns an EGLDisplay and we can't determine
what type that is.

There is also a conformance test which just verifies that no GL header
has been included while compiling. The test isn't added to
test-conform-main because it doesn't actually test anything at
runtime.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit ef5680d3fda5df929dbd0b420c8f598ded58dfee)
2012-08-06 14:27:38 +01:00

125 lines
4.0 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009,2010 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, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_INTERNAL_H
#define __COGL_INTERNAL_H
#include "cogl-bitmask.h"
#include "cogl-gl-header.h"
#ifdef COGL_HAS_XLIB_SUPPORT
#include <X11/Xutil.h>
#endif
#ifdef COGL_GL_DEBUG
const char *
_cogl_gl_error_to_string (GLenum error_code);
#define GE(ctx, x) G_STMT_START { \
GLenum __err; \
(ctx)->x; \
while ((__err = (ctx)->glGetError ()) != GL_NO_ERROR) \
{ \
g_warning ("%s: GL error (%d): %s\n", \
G_STRLOC, \
__err, \
_cogl_gl_error_to_string (__err)); \
} } G_STMT_END
#define GE_RET(ret, ctx, x) G_STMT_START { \
GLenum __err; \
ret = (ctx)->x; \
while ((__err = (ctx)->glGetError ()) != GL_NO_ERROR) \
{ \
g_warning ("%s: GL error (%d): %s\n", \
G_STRLOC, \
__err, \
_cogl_gl_error_to_string (__err)); \
} } G_STMT_END
#else /* !COGL_GL_DEBUG */
#define GE(ctx, x) ((ctx)->x)
#define GE_RET(ret, ctx, x) (ret = ((ctx)->x))
#endif /* COGL_GL_DEBUG */
#define COGL_ENABLE_ALPHA_TEST (1<<1)
#define COGL_ENABLE_VERTEX_ARRAY (1<<2)
#define COGL_ENABLE_COLOR_ARRAY (1<<3)
void
_cogl_enable (unsigned long flags);
unsigned long
_cogl_get_enable (void);
void
_cogl_transform_point (const CoglMatrix *matrix_mv,
const CoglMatrix *matrix_p,
const float *viewport,
float *x,
float *y);
#define COGL_DRIVER_ERROR (_cogl_driver_error_quark ())
typedef enum { /*< prefix=COGL_DRIVER_ERROR >*/
COGL_DRIVER_ERROR_UNKNOWN_VERSION,
COGL_DRIVER_ERROR_INVALID_VERSION,
COGL_DRIVER_ERROR_NO_SUITABLE_DRIVER_FOUND,
COGL_DRIVER_ERROR_FAILED_TO_LOAD_LIBRARY
} CoglDriverError;
typedef enum
{
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE = 1L<<0,
COGL_PRIVATE_FEATURE_MESA_PACK_INVERT = 1L<<1,
COGL_PRIVATE_FEATURE_STENCIL_BUFFER = 1L<<2,
COGL_PRIVATE_FEATURE_OFFSCREEN_BLIT = 1L<<3,
COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES = 1L<<4,
COGL_PRIVATE_FEATURE_PBOS = 1L<<5,
COGL_PRIVATE_FEATURE_VBOS = 1L<<6,
COGL_PRIVATE_FEATURE_EXT_PACKED_DEPTH_STENCIL = 1L<<7,
COGL_PRIVATE_FEATURE_OES_PACKED_DEPTH_STENCIL = 1L<<8,
COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_BGRA8888 = 1L<<9,
COGL_PRIVATE_FEATURE_UNPACK_SUBIMAGE = 1L<<10,
COGL_PRIVATE_FEATURE_SAMPLER_OBJECTS = 1L<<11
} CoglPrivateFeatureFlags;
/* Sometimes when evaluating pipelines, either during comparisons or
* if calculating a hash value we need to tweak the evaluation
* semantics */
typedef enum _CoglPipelineEvalFlags
{
COGL_PIPELINE_EVAL_FLAG_NONE = 0
} CoglPipelineEvalFlags;
gboolean
_cogl_check_extension (const char *name, const char *ext);
GQuark
_cogl_driver_error_quark (void);
#endif /* __COGL_INTERNAL_H */