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Check for out-of-memory when allocating 2d textures

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This makes Cogl explicitly check for out-of-memory errors reported by
the opengl driver in cogl_texture_2d_new_with_size() calls. This allows
us to throw a COGL_SYSTEM_ERROR_NO_MEMORY error and return NULL so
applications may gracefully handle this condition.

This patch only affects the cogl_texture_2d_new_with_size() api not
_new_from_data() or _new_from_bitmap().

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 0283423dad59ba3d3e4cde400c29ac8e7803f888)
This commit is contained in:
Robert Bragg 2012-10-25 16:56:14 +01:00
parent 4f6fe6f0e2
commit 31d105abd8
4 changed files with 116 additions and 2 deletions
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2
cogl/Makefile.am
View File

@ -159,6 +159,8 @@ cogl_gl_prototypes_h = \
$(NULL)
cogl_driver_sources += \
$(srcdir)/driver/gl/cogl-util-gl-private.h \
$(srcdir)/driver/gl/cogl-util-gl.c \
$(srcdir)/driver/gl/cogl-framebuffer-gl-private.h \
$(srcdir)/driver/gl/cogl-framebuffer-gl.c \
$(srcdir)/driver/gl/cogl-texture-2d-gl-private.h \

17
cogl/driver/gl/cogl-texture-2d-gl.c
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@ -37,6 +37,7 @@
#include "cogl-texture-2d-private.h"
#include "cogl-pipeline-opengl-private.h"
#include "cogl-error-private.h"
#include "cogl-util-gl-private.h"
void
_cogl_texture_2d_gl_free (CoglTexture2D *tex_2d)
@ -97,6 +98,7 @@ _cogl_texture_2d_gl_new_with_size (CoglContext *ctx,
GLenum gl_intformat;
GLenum gl_format;
GLenum gl_type;
GLenum gl_error;
internal_format = ctx->driver_vtable->pixel_format_to_gl (ctx,
internal_format,
@ -113,8 +115,19 @@ _cogl_texture_2d_gl_new_with_size (CoglContext *ctx,
_cogl_bind_gl_texture_transient (GL_TEXTURE_2D,
tex_2d->gl_texture,
tex_2d->is_foreign);
GE( ctx, glTexImage2D (GL_TEXTURE_2D, 0, gl_intformat,
width, height, 0, gl_format, gl_type, NULL) );
/* Clear any GL errors */
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
;
ctx->glTexImage2D (GL_TEXTURE_2D, 0, gl_intformat,
width, height, 0, gl_format, gl_type, NULL);
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
{
cogl_object_unref (tex_2d);
return NULL;
}
return tex_2d;
}

33
cogl/driver/gl/cogl-util-gl-private.h Normal file
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@ -0,0 +1,33 @@
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 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/>.
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef _COGL_UTIL_GL_PRIVATE_H_
#include "cogl-types.h"
CoglBool
_cogl_gl_util_catch_out_of_memory (CoglContext *ctx, CoglError **error);
#endif /* _COGL_UTIL_GL_PRIVATE_H_ */

66
cogl/driver/gl/cogl-util-gl.c Normal file
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@ -0,0 +1,66 @@
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 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/>.
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-types.h"
#include "cogl-context-private.h"
#include "cogl-error-private.h"
#include "cogl-internal.h"
#include "cogl-util-gl-private.h"
CoglBool
_cogl_gl_util_catch_out_of_memory (CoglContext *ctx, CoglError **error)
{
GLenum gl_error;
CoglBool out_of_memory = FALSE;
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
{
if (gl_error == GL_OUT_OF_MEMORY)
out_of_memory = TRUE;
#ifdef COGL_GL_DEBUG
else
{
g_warning ("%s: GL error (%d): %s\n",
G_STRLOC,
gl_error,
_cogl_gl_error_to_string (gl_error));
}
#endif
}
if (out_of_memory)
{
_cogl_set_error (error, COGL_SYSTEM_ERROR,
COGL_SYSTEM_ERROR_NO_MEMORY,
"Out of memory");
return TRUE;
}
return FALSE;
}