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79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
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/*
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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) 2008,2009 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_PROGRAM_H
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#define __COGL_PROGRAM_H
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#include "cogl-handle.h"
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#include "cogl-internal.h"
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#include "cogl-shader-private.h"
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typedef struct _CoglProgram CoglProgram;
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struct _CoglProgram
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{
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CoglHandleObject _parent;
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GSList *attached_shaders;
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GArray *custom_uniforms;
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/* An age counter that changes whenever the list of shaders is modified */
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unsigned int age;
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};
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typedef struct _CoglProgramUniform CoglProgramUniform;
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struct _CoglProgramUniform
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{
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char *name;
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CoglBoxedValue value;
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/* The cached GL location for this uniform. This is only valid
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between calls to _cogl_program_dirty_all_uniforms */
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GLint location;
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/* Whether we have a location yet */
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unsigned int location_valid : 1;
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/* Whether the uniform value has changed since the last time the
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uniforms were flushed */
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unsigned int dirty : 1;
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};
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CoglProgram *_cogl_program_pointer_from_handle (CoglHandle handle);
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/* Internal function to flush the custom uniforms for the given use
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program. This assumes the target GL program is already bound. The
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gl_program still needs to be passed so that CoglProgram can query
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the uniform locations. gl_program_changed should be set to TRUE if
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we are flushing the uniforms against a different GL program from
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the last time it was flushed. This will cause it to requery all of
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the locations and assume that all uniforms are dirty */
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void
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_cogl_program_flush_uniforms (CoglProgram *program,
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GLuint gl_program,
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gboolean gl_program_changed);
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CoglShaderLanguage
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_cogl_program_get_language (CoglHandle handle);
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#endif /* __COGL_PROGRAM_H */
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