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)
157 lines
4.8 KiB
C
157 lines
4.8 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2009,2010,2011,2012 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authors:
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* Neil Roberts <neil@linux.intel.com>
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "cogl-private.h"
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#include "cogl-texture-2d-nop-private.h"
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#include "cogl-texture-2d-private.h"
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#include "cogl-error-private.h"
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void
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_cogl_texture_2d_nop_free (CoglTexture2D *tex_2d)
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{
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}
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CoglBool
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_cogl_texture_2d_nop_can_create (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat internal_format)
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{
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return TRUE;
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}
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void
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_cogl_texture_2d_nop_init (CoglTexture2D *tex_2d)
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{
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}
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CoglTexture2D *
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_cogl_texture_2d_nop_new_with_size (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat internal_format,
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CoglError **error)
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{
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return _cogl_texture_2d_create_base (ctx,
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width, height,
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internal_format);
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}
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CoglTexture2D *
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_cogl_texture_2d_nop_new_from_bitmap (CoglBitmap *bmp,
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CoglPixelFormat internal_format,
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CoglError **error)
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{
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return _cogl_texture_2d_nop_new_with_size (_cogl_bitmap_get_context (bmp),
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cogl_bitmap_get_width (bmp),
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cogl_bitmap_get_height (bmp),
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internal_format,
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error);
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}
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#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
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CoglTexture2D *
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_cogl_egl_texture_2d_nop_new_from_image (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat format,
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EGLImageKHR image,
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CoglError **error)
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{
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_cogl_set_error (error,
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COGL_SYSTEM_ERROR,
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COGL_SYSTEM_ERROR_UNSUPPORTED,
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"Creating 2D textures from an EGLImage isn't "
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"supported by the NOP backend");
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return NULL;
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}
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#endif
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void
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_cogl_texture_2d_nop_flush_legacy_texobj_filters (CoglTexture *tex,
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GLenum min_filter,
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GLenum mag_filter)
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{
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}
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void
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_cogl_texture_2d_nop_flush_legacy_texobj_wrap_modes (CoglTexture *tex,
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GLenum wrap_mode_s,
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GLenum wrap_mode_t,
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GLenum wrap_mode_p)
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{
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}
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void
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_cogl_texture_2d_nop_copy_from_framebuffer (CoglTexture2D *tex_2d,
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CoglFramebuffer *src_fb,
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int dst_x,
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int dst_y,
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int src_x,
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int src_y,
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int width,
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int height)
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{
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}
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unsigned int
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_cogl_texture_2d_nop_get_gl_handle (CoglTexture2D *tex_2d)
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{
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return 0;
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}
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void
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_cogl_texture_2d_nop_generate_mipmap (CoglTexture2D *tex_2d)
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{
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}
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void
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_cogl_texture_2d_nop_copy_from_bitmap (CoglTexture2D *tex_2d,
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CoglBitmap *bitmap,
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int dst_x,
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int dst_y,
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int src_x,
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int src_y,
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int width,
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int height)
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{
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}
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void
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_cogl_texture_2d_nop_get_data (CoglTexture2D *tex_2d,
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CoglPixelFormat format,
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size_t rowstride,
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uint8_t *data)
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{
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}
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