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54735dec84
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.
Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.
Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.
So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.
Instead of gsize we now use size_t
For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
159 lines
4.9 KiB
C
159 lines
4.9 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) 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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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifndef __COGL_VERTEX_BUFFER_H
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#define __COGL_VERTEX_BUFFER_H
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#include "cogl-object-private.h"
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#include "cogl-primitive.h"
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#include <glib.h>
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/* Note we put quite a bit into the flags here to help keep
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* the down size of the CoglVertexBufferAttrib struct below. */
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typedef enum _CoglVertexBufferAttribFlags
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{
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/* Types */
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/* NB: update the _TYPE_MASK below if these are changed */
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_COLOR_ARRAY = 1<<0,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMAL_ARRAY = 1<<1,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_TEXTURE_COORD_ARRAY = 1<<2,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_VERTEX_ARRAY = 1<<3,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_CUSTOM_ARRAY = 1<<4,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_INVALID = 1<<5,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMALIZED = 1<<6,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_ENABLED = 1<<7,
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/* Usage hints */
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/* FIXME - flatten into one flag, since its used as a boolean */
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_INFREQUENT_RESUBMIT = 1<<8,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_FREQUENT_RESUBMIT = 1<<9,
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/* GL Data types */
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/* NB: Update the _GL_TYPE_MASK below if these are changed */
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_BYTE = 1<<10,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_BYTE = 1<<11,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_SHORT = 1<<12,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_SHORT = 1<<13,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_INT = 1<<14,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_INT = 1<<15,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_FLOAT = 1<<16,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_DOUBLE = 1<<17,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_SUBMITTED = 1<<18,
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COGL_VERTEX_BUFFER_ATTRIB_FLAG_UNUSED = 1<<19
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/* XXX NB: If we need > 24 bits then look at changing the layout
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* of struct _CoglVertexBufferAttrib below */
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} CoglVertexBufferAttribFlags;
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#define COGL_VERTEX_BUFFER_ATTRIB_FLAG_TYPE_MASK \
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(COGL_VERTEX_BUFFER_ATTRIB_FLAG_COLOR_ARRAY \
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| COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMAL_ARRAY \
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| COGL_VERTEX_BUFFER_ATTRIB_FLAG_TEXTURE_COORD_ARRAY \
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| COGL_VERTEX_BUFFER_ATTRIB_FLAG_VERTEX_ARRAY \
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| COGL_VERTEX_BUFFER_ATTRIB_FLAG_CUSTOM_ARRAY \
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| COGL_VERTEX_BUFFER_ATTRIB_FLAG_INVALID)
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typedef struct _CoglVertexBufferAttrib
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{
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/* TODO: look at breaking up the flags into seperate
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* bitfields and seperate enums */
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CoglVertexBufferAttribFlags flags:24;
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uint8_t id;
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GQuark name;
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char *name_without_detail;
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union _u
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{
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const void *pointer;
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size_t vbo_offset;
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} u;
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CoglAttributeType type;
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size_t span_bytes;
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uint16_t stride;
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uint8_t n_components;
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uint8_t texture_unit;
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int attribute_first;
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CoglAttribute *attribute;
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} CoglVertexBufferAttrib;
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typedef enum _CoglVertexBufferVBOFlags
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{
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COGL_VERTEX_BUFFER_VBO_FLAG_STRIDED = 1<<0,
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COGL_VERTEX_BUFFER_VBO_FLAG_MULTIPACK = 1<<1,
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/* FIXME - flatten into one flag, since its used as a boolean */
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COGL_VERTEX_BUFFER_VBO_FLAG_INFREQUENT_RESUBMIT = 1<<3,
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COGL_VERTEX_BUFFER_VBO_FLAG_FREQUENT_RESUBMIT = 1<<4,
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COGL_VERTEX_BUFFER_VBO_FLAG_SUBMITTED = 1<<5
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} CoglVertexBufferVBOFlags;
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/*
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* A CoglVertexBufferVBO represents one or more attributes in a single
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* buffer object
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*/
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typedef struct _CoglVertexBufferVBO
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{
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CoglVertexBufferVBOFlags flags;
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CoglAttributeBuffer *attribute_buffer;
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size_t buffer_bytes;
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GList *attributes;
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} CoglVertexBufferVBO;
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typedef struct _CoglVertexBufferIndices
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{
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CoglHandleObject _parent;
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CoglIndices *indices;
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} CoglVertexBufferIndices;
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typedef struct _CoglVertexBuffer
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{
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CoglHandleObject _parent;
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int n_vertices; /*!< The number of vertices in the buffer */
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GList *submitted_vbos; /* The VBOs currently submitted to the GPU */
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/* Note: new_attributes is normally NULL and only valid while
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* modifying a buffer. */
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GList *new_attributes; /*!< attributes pending submission */
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CoglBool dirty_attributes;
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CoglPrimitive *primitive;
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} CoglVertexBuffer;
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#endif /* __COGL_VERTEX_BUFFER_H */
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