ae713a32d0
This adds a new "nop" driver that does nothing. This can be selected at runtime either with the COGL_DRIVER=nop environment variable or by passing COGL_DRIVER_NOP to cogl_renderer_set_driver() Adding the nop driver gives us a way to test workloads without any driver and hardware overheads which can help us understand how Cogl's state tracking performs in isolation. Having a nop driver can also serve as an shell/outline for creating other drivers later. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 90587418233b6438290741d80aedf193ae660cad)
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
|
|
* 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/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include "cogl-private.h"
|
|
#include "cogl-internal.h"
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-feature-private.h"
|
|
#include "cogl-renderer-private.h"
|
|
#include "cogl-error-private.h"
|
|
#include "cogl-framebuffer-nop-private.h"
|
|
#include "cogl-texture-2d-nop-private.h"
|
|
#include "cogl-attribute-nop-private.h"
|
|
#include "cogl-clip-stack-nop-private.h"
|
|
|
|
static CoglBool
|
|
_cogl_driver_update_features (CoglContext *ctx,
|
|
CoglError **error)
|
|
{
|
|
/* _cogl_gpu_info_init (ctx, &ctx->gpu); */
|
|
|
|
ctx->private_feature_flags = 0;
|
|
ctx->feature_flags = 0;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
const CoglDriverVtable
|
|
_cogl_driver_nop =
|
|
{
|
|
NULL, /* pixel_format_from_gl_internal */
|
|
NULL, /* pixel_format_to_gl */
|
|
_cogl_driver_update_features,
|
|
_cogl_offscreen_nop_allocate,
|
|
_cogl_offscreen_nop_free,
|
|
_cogl_framebuffer_nop_flush_state,
|
|
_cogl_framebuffer_nop_clear,
|
|
_cogl_framebuffer_nop_query_bits,
|
|
_cogl_framebuffer_nop_finish,
|
|
_cogl_framebuffer_nop_discard_buffers,
|
|
_cogl_framebuffer_nop_draw_attributes,
|
|
_cogl_framebuffer_nop_draw_indexed_attributes,
|
|
_cogl_texture_2d_nop_free,
|
|
_cogl_texture_2d_nop_can_create,
|
|
_cogl_texture_2d_nop_init,
|
|
_cogl_texture_2d_nop_new_with_size,
|
|
_cogl_texture_2d_nop_new_from_bitmap,
|
|
#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
|
|
_cogl_egl_texture_2d_nop_new_from_image,
|
|
#endif
|
|
_cogl_texture_2d_nop_copy_from_framebuffer,
|
|
_cogl_texture_2d_nop_get_gl_handle,
|
|
_cogl_texture_2d_nop_generate_mipmap,
|
|
_cogl_texture_2d_nop_copy_from_bitmap,
|
|
NULL, /* texture_2d_get_data */
|
|
_cogl_nop_flush_attributes_state,
|
|
_cogl_clip_stack_nop_flush,
|
|
};
|