buffer.c File Reference

#include <stdio.h>
#include <string.h>
#include "buffer_p.h"
#include "message_callback_p.h"
#include "triangle.h"
#include "type.h"
#include "utils.h"
#include "defines.h"
#include "vertex.h"

Include dependency graph for buffer.c:

Functions
SRPVertexBuffer *	srpNewVertexBuffer ()
void	srpVertexBufferCopyData (SRPVertexBuffer *this, size_t nBytesPerVertex, size_t nBytesData, const void *data)
void	srpFreeVertexBuffer (SRPVertexBuffer *this)
void	srpDrawVertexBuffer (const SRPVertexBuffer *this, const SRPFramebuffer *fb, const SRPShaderProgram *sp, SRPPrimitive primitive, size_t startIndex, size_t count)
SRPIndexBuffer *	srpNewIndexBuffer ()
void	srpIndexBufferCopyData (SRPIndexBuffer *this, SRPType indicesType, size_t nBytesData, const void *data)
void	srpFreeIndexBuffer (SRPIndexBuffer *this)
void	srpDrawIndexBuffer (const SRPIndexBuffer *this, const SRPVertexBuffer *vb, const SRPFramebuffer *fb, const SRPShaderProgram *sp, SRPPrimitive primitive, size_t startIndex, size_t count)
static void	drawBuffer (const SRPIndexBuffer *ib, const SRPVertexBuffer *vb, const SRPFramebuffer *fb, const SRPShaderProgram *sp, SRPPrimitive primitive, size_t startIndex, size_t count)
static uint64_t	indexIndexBuffer (const SRPIndexBuffer *this, size_t ibIndex)
static SRPVertex *	indexVertexBuffer (const SRPVertexBuffer *this, size_t index)

Detailed Description

Buffer implementation

Function Documentation

srpDrawIndexBuffer()

void srpDrawIndexBuffer	(	const SRPIndexBuffer *	this,
		const SRPVertexBuffer *	vb,
		const SRPFramebuffer *	fb,
		const SRPShaderProgram *	sp,
		SRPPrimitive	primitive,
		size_t	startIndex,
		size_t	count
	)

Draw vertices using both vertex and index buffers

Parameters

[in]	this	The index buffer to read the indices from
[in]	vb	The vertex buffer to read the vertex data from
[in]	fb	The framebuffer to draw to
[in]	sp	The shader program to use
[in]	primitive	Specifies the primitive to draw
[in]	startIndex	Specifies from what index buffer's index to start drawing
[in]	count	Specifies how many indices to draw

Examples

03_spinning_textured_cube/main.c.

srpDrawVertexBuffer()

void srpDrawVertexBuffer	(	const SRPVertexBuffer *	this,
		const SRPFramebuffer *	fb,
		const SRPShaderProgram *	sp,
		SRPPrimitive	primitive,
		size_t	startIndex,
		size_t	count
	)

Draw vertices from vertex buffer

Parameters

[in]	this	The pointer to vertex buffer to read the vertex data from
[in]	fb	The framebuffer to draw to
[in]	sp	The shader program to use
[in]	primitive	Specifies the primitive to draw
[in]	startIndex	Specifies from what index to start drawing
[in]	count	Specifies how many vertices to draw

Examples

01_colored_triangle/main.c, and 02_spinning_triangle/main.c.

srpFreeIndexBuffer()

void srpFreeIndexBuffer

(

SRPIndexBuffer *

this

)

Free the index buffer

Parameters

[in]

this

The pointer to index buffer, as returned from srpNewIndexBuffer()

Examples

03_spinning_textured_cube/main.c.

srpFreeVertexBuffer()

void srpFreeVertexBuffer

(

SRPVertexBuffer *

this

)

Free the vertex buffer

Parameters

[in]

this

The pointer to vertex buffer, as returned from srpNewVertexBuffer()

Examples

01_colored_triangle/main.c, 02_spinning_triangle/main.c, and 03_spinning_textured_cube/main.c.

srpIndexBufferCopyData()

void srpIndexBufferCopyData	(	SRPIndexBuffer *	this,
		SRPType	indicesType,
		size_t	nBytesData,
		const void *	data
	)

Copy the vertex data over to vertex buffer

Parameters

[in]	this	The pointer to index buffer
[in]	indicesType	The type of indices passed by data. Must be one of TYPE_UINT8, TYPE_UINT16, TYPE_UINT32, TYPE_UIN64
[in]	nBytesData	The size of index data
[in]	data	The pointer to an array of indices of type indicesType

Examples

03_spinning_textured_cube/main.c.

srpNewIndexBuffer()

SRPIndexBuffer * srpNewIndexBuffer

(

)

Construct the index buffer

Returns

A pointer to constructed index buffer

Examples

03_spinning_textured_cube/main.c.

srpNewVertexBuffer()

SRPVertexBuffer * srpNewVertexBuffer

(

)

Construct the vertex buffer.

See also

srpVertexBufferCopyData()

Returns

A pointer to constructed vertex buffer

Examples

01_colored_triangle/main.c, 02_spinning_triangle/main.c, and 03_spinning_textured_cube/main.c.

srpVertexBufferCopyData()

void srpVertexBufferCopyData	(	SRPVertexBuffer *	this,
		size_t	nBytesPerVertex,
		size_t	nBytesData,
		const void *	data
	)

Copy the vertex data over to vertex buffer

Parameters

[in]	this	The pointer to vertex buffer
[in]	nBytesPerVertex	The size of one vertex, in bytes
[in]	nBytesData	The size of vertex data, in bytes
[in]	data	The pointer to vertex data

Examples

01_colored_triangle/main.c, 02_spinning_triangle/main.c, and 03_spinning_textured_cube/main.c.