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ce5d06afe1
This splits out most of the OpenGL specific code from cogl-framebuffer.c into cogl-framebuffer-gl.c and extends the CoglDriverVtable interface for cogl-framebuffer.c to use. There are hopes to support several different backends for Cogl eventually to hopefully get us closer to the metal so this makes some progress in organizing which parts of Cogl are OpenGL specific so these parts can potentially be switched out later. The only remaining use of OpenGL still in cogl-framebuffer.c is to handle cogl_framebuffer_read_pixels.
109 lines
3.6 KiB
C
109 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) 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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#ifndef __COGL_DRIVER_H
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#define __COGL_DRIVER_H
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#include "cogl-context.h"
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#include "cogl-offscreen.h"
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#include "cogl-framebuffer-private.h"
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typedef struct _CoglDriverVtable CoglDriverVtable;
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struct _CoglDriverVtable
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{
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CoglBool
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(* pixel_format_from_gl_internal) (CoglContext *context,
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GLenum gl_int_format,
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CoglPixelFormat *out_format);
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CoglPixelFormat
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(* pixel_format_to_gl) (CoglContext *context,
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CoglPixelFormat format,
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GLenum *out_glintformat,
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GLenum *out_glformat,
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GLenum *out_gltype);
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CoglBool
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(* update_features) (CoglContext *context,
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GError **error);
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CoglBool
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(* offscreen_allocate) (CoglOffscreen *offscreen,
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GError **error);
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void
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(* offscreen_free) (CoglOffscreen *offscreen);
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void
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(* framebuffer_flush_state) (CoglFramebuffer *draw_buffer,
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CoglFramebuffer *read_buffer,
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CoglFramebufferState state);
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void
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(* framebuffer_clear) (CoglFramebuffer *framebuffer,
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unsigned long buffers,
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float red,
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float green,
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float blue,
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float alpha);
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void
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(* framebuffer_query_bits) (CoglFramebuffer *framebuffer,
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int *red,
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int *green,
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int *blue,
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int *alpha);
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void
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(* framebuffer_finish) (CoglFramebuffer *framebuffer);
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void
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(* framebuffer_discard_buffers) (CoglFramebuffer *framebuffer,
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unsigned long buffers);
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void
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(* framebuffer_draw_attributes) (CoglFramebuffer *framebuffer,
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CoglPipeline *pipeline,
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CoglVerticesMode mode,
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int first_vertex,
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int n_vertices,
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CoglAttribute **attributes,
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int n_attributes,
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CoglDrawFlags flags);
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void
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(* framebuffer_draw_indexed_attributes) (CoglFramebuffer *framebuffer,
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CoglPipeline *pipeline,
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CoglVerticesMode mode,
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int first_vertex,
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int n_vertices,
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CoglIndices *indices,
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CoglAttribute **attributes,
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int n_attributes,
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CoglDrawFlags flags);
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};
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#endif /* __COGL_DRIVER_H */
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