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60b25615fd
This adds an internal texture_2d constructor that can wrap an EGLImage as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap support with EGL as well as creating textures from wayland buffers.
111 lines
3.6 KiB
C
111 lines
3.6 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_H
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#define __COGL_TEXTURE_2D_H
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#include "cogl-handle.h"
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#include "cogl-pipeline-private.h"
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#include "cogl-texture-private.h"
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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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/* 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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int width;
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int height;
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GLenum min_filter;
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GLenum mag_filter;
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GLint wrap_mode_s;
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GLint wrap_mode_t;
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gboolean auto_mipmap;
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gboolean mipmaps_dirty;
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gboolean is_foreign;
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CoglTexturePixel first_pixel;
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};
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GQuark
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_cogl_handle_texture_2d_get_type (void);
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CoglHandle
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_cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format,
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GError **error);
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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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GError **error);
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#endif
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/*
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* _cogl_texture_2d_externally_modified:
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* @handle: A handle to a 2D texture
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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 (CoglHandle handle);
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/*
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* _cogl_texture_2d_copy_from_framebuffer:
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* @handle: A handle to a 2D texture
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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 (CoglHandle handle,
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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_H */
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