4087e848c4
This factors out all of the OpenGL specific code in cogl-texture-2d.c into cogl-texture-2d-gl.c and where necessary adds indirection through the CoglDriver vtable so that we can eventually start to experiment with non-OpenGL backends for Cogl. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit ec57588671696bbe7ce714bdfe7324236146c9c0)
120 lines
3.8 KiB
C
120 lines
3.8 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 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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#ifndef __COGL_TEXTURE_2D_PRIVATE_H
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#define __COGL_TEXTURE_2D_PRIVATE_H
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#include "cogl-object-private.h"
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#include "cogl-pipeline-private.h"
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#include "cogl-texture-private.h"
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#include "cogl-texture-2d.h"
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#ifdef COGL_HAS_EGL_SUPPORT
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#include "cogl-egl-defines.h"
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#endif
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struct _CoglTexture2D
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{
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CoglTexture _parent;
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/* The internal format of the GL texture represented as a
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CoglPixelFormat */
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CoglPixelFormat format;
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int width;
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int height;
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CoglBool auto_mipmap;
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CoglBool mipmaps_dirty;
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CoglBool is_foreign;
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/* TODO: factor out these OpenGL specific members into some form
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* of driver private state. */
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/* The internal format of the GL texture represented as a GL enum */
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GLenum gl_format;
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/* The texture object number */
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GLuint gl_texture;
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GLenum gl_legacy_texobj_min_filter;
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GLenum gl_legacy_texobj_mag_filter;
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GLint gl_legacy_texobj_wrap_mode_s;
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GLint gl_legacy_texobj_wrap_mode_t;
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CoglTexturePixel first_pixel;
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};
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#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
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/* NB: The reason we require the width, height and format to be passed
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* even though they may seem redundant is because GLES 1/2 don't
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* provide a way to query these properties. */
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CoglTexture2D *
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_cogl_egl_texture_2d_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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#endif
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CoglTexture2D *
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_cogl_texture_2d_create_base (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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void
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_cogl_texture_2d_set_auto_mipmap (CoglTexture *tex,
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CoglBool value);
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/*
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* _cogl_texture_2d_externally_modified:
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* @texture: A #CoglTexture2D object
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*
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* This should be called whenever the texture is modified other than
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* by using cogl_texture_set_region. It will cause the mipmaps to be
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* invalidated
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*/
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void
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_cogl_texture_2d_externally_modified (CoglTexture *texture);
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/*
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* _cogl_texture_2d_copy_from_framebuffer:
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* @texture: A #CoglTexture2D pointer
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* @dst_x: X-position to store the image within the texture
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* @dst_y: Y-position to store the image within the texture
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* @src_x: X-position to within the framebuffer to read from
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* @src_y: Y-position to within the framebuffer to read from
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* @width: width of the rectangle to copy
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* @height: height of the rectangle to copy
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*
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* This copies a portion of the current read framebuffer into the
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* texture.
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*/
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void
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_cogl_texture_2d_copy_from_framebuffer (CoglTexture2D *texture,
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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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#endif /* __COGL_TEXTURE_2D_PRIVATE_H */
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