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6400b455b8
This splits the GL header inclusion from cogl-defines.h into a separate headear called cogl-gl-header.h which we will only include internally. That way we don't leak GL declarations out of our public headers. The texture functions that were using GLenum and GLuint in the public header have now changed to just use unsigned int. Note however that if an EGL winsys is enabled then it will still publicly include an EGL header. This is a bit more awkward to fix because we have public API which returns an EGLDisplay and we can't determine what type that is. There is also a conformance test which just verifies that no GL header has been included while compiling. The test isn't added to test-conform-main because it doesn't actually test anything at runtime. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ef5680d3fda5df929dbd0b420c8f598ded58dfee)
162 lines
4.8 KiB
C
162 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) 2010 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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* Damien Lespiau <damien.lespiau@intel.com>
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifndef __COGL_BUFFER_PRIVATE_H__
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#define __COGL_BUFFER_PRIVATE_H__
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#include <glib.h>
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#include "cogl-object-private.h"
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#include "cogl-buffer.h"
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#include "cogl-context.h"
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#include "cogl-gl-header.h"
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G_BEGIN_DECLS
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typedef struct _CoglBufferVtable CoglBufferVtable;
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struct _CoglBufferVtable
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{
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void * (* map) (CoglBuffer *buffer,
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CoglBufferAccess access,
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CoglBufferMapHint hints);
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void (* unmap) (CoglBuffer *buffer);
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gboolean (* set_data) (CoglBuffer *buffer,
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unsigned int offset,
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const void *data,
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unsigned int size);
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};
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typedef enum _CoglBufferFlags
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{
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COGL_BUFFER_FLAG_NONE = 0,
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COGL_BUFFER_FLAG_BUFFER_OBJECT = 1UL << 0, /* real openGL buffer object */
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COGL_BUFFER_FLAG_MAPPED = 1UL << 1,
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COGL_BUFFER_FLAG_MAPPED_FALLBACK = 1UL << 2
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} CoglBufferFlags;
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typedef enum {
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COGL_BUFFER_USAGE_HINT_TEXTURE,
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COGL_BUFFER_USAGE_HINT_ATTRIBUTE_BUFFER,
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COGL_BUFFER_USAGE_HINT_INDEX_BUFFER
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} CoglBufferUsageHint;
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typedef enum {
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COGL_BUFFER_BIND_TARGET_PIXEL_PACK,
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COGL_BUFFER_BIND_TARGET_PIXEL_UNPACK,
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COGL_BUFFER_BIND_TARGET_ATTRIBUTE_BUFFER,
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COGL_BUFFER_BIND_TARGET_INDEX_BUFFER,
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COGL_BUFFER_BIND_TARGET_COUNT
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} CoglBufferBindTarget;
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struct _CoglBuffer
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{
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CoglObject _parent;
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CoglContext *context;
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CoglBufferVtable vtable;
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CoglBufferBindTarget last_target;
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CoglBufferFlags flags;
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GLuint gl_handle; /* OpenGL handle */
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unsigned int size; /* size of the buffer, in bytes */
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CoglBufferUsageHint usage_hint;
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CoglBufferUpdateHint update_hint;
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guint8 *data; /* points to the mapped memory when
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* the CoglBuffer is a VBO, PBO, ... or
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* points to allocated memory in the
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* fallback paths */
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int immutable_ref;
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guint store_created:1;
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};
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/* This is used to register a type to the list of handle types that
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will be considered a texture in cogl_is_texture() */
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void
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_cogl_buffer_register_buffer_type (const CoglObjectClass *klass);
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#define COGL_BUFFER_DEFINE(TypeName, type_name) \
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COGL_OBJECT_DEFINE_WITH_CODE \
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(TypeName, type_name, \
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_cogl_buffer_register_buffer_type (&_cogl_##type_name##_class))
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void
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_cogl_buffer_initialize (CoglBuffer *buffer,
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CoglContext *context,
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unsigned int size,
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gboolean use_malloc,
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CoglBufferBindTarget default_target,
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CoglBufferUsageHint usage_hint,
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CoglBufferUpdateHint update_hint);
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void
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_cogl_buffer_fini (CoglBuffer *buffer);
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void *
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_cogl_buffer_bind (CoglBuffer *buffer,
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CoglBufferBindTarget target);
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void
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_cogl_buffer_unbind (CoglBuffer *buffer);
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CoglBufferUsageHint
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_cogl_buffer_get_usage_hint (CoglBuffer *buffer);
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GLenum
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_cogl_buffer_access_to_gl_enum (CoglBufferAccess access);
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CoglBuffer *
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_cogl_buffer_immutable_ref (CoglBuffer *buffer);
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void
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_cogl_buffer_immutable_unref (CoglBuffer *buffer);
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/* This is a wrapper around cogl_buffer_map for internal use when we
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want to map the buffer for write only to replace the entire
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contents. If the map fails then it will fallback to writing to a
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temporary buffer. When _cogl_buffer_unmap_for_fill_or_fallback is
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called the temporary buffer will be copied into the array. Note
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that these calls share a global array so they can not be nested. */
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void *
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_cogl_buffer_map_for_fill_or_fallback (CoglBuffer *buffer);
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void
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_cogl_buffer_unmap_for_fill_or_fallback (CoglBuffer *buffer);
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G_END_DECLS
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#endif /* __COGL_BUFFER_PRIVATE_H__ */
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