render_engine.c File Reference

#include "render_engine.h"
#include <math.h>
#include <stdlib.h>
#include "subsystem.h"
#include "uart.h"
#include "terminal.h"

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Macros
#define	M_PI   3.14159265358979323846

Functions
point_t	pointToScreen (vector_t delta, rounding_t camHAngle, rounding_t camVAngle, rounding_t angleHPixel, rounding_t angleVPixel, uint8_t halfWidth, uint8_t halfHeight)
rounding_t	dotProduct (vector_t a, vector_t b)
int	compareTriangles (const void *a, const void *b)
void	paintPixel (framebuffer_t *frame, uint16_t x, uint16_t y, uint8_t color)
void	paintPixelf (framebuffer_t *frame, rounding_t x, rounding_t y, uint8_t color)
void	changeTerminalCursorLocation (uint8_t channel, uint8_t x, uint8_t y)
void	writeTerminalNumber (uint8_t channel, uint8_t number)
void	changeTerminalColor (uint8_t channel, uint8_t color)
void	writeTerminalBlock (uint8_t channel, uint8_t data)
void	Render_Engine_RenderFrame (world_t *world, camera_t *camera, framebuffer_t *frame)
	Render a frame. More...
void	Render_Engine_DisplayFrame (uint8_t channel, framebuffer_t *frame)
	Display a frame. More...

Macro Definition Documentation

#define M_PI   3.14159265358979323846

Function Documentation

void changeTerminalColor	(	uint8_t	channel,
		uint8_t	color
	)

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void changeTerminalCursorLocation	(	uint8_t	channel,
		uint8_t	x,
		uint8_t	y
	)

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int compareTriangles	(	const void *	a,
		const void *	b
	)

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rounding_t dotProduct	(	vector_t	a,
		vector_t	b
	)

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void paintPixel	(	framebuffer_t *	frame,
		uint16_t	x,
		uint16_t	y,
		uint8_t	color
	)

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void paintPixelf	(	framebuffer_t *	frame,
		rounding_t	x,
		rounding_t	y,
		uint8_t	color
	)

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point_t pointToScreen	(	vector_t	delta,
		rounding_t	camHAngle,
		rounding_t	camVAngle,
		rounding_t	angleHPixel,
		rounding_t	angleVPixel,
		uint8_t	halfWidth,
		uint8_t	halfHeight
	)

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void Render_Engine_DisplayFrame	(	uint8_t	channel,
		framebuffer_t *	framebuffer
	)

Display a frame.

Output the contents of a framebuffer over a UART channel. Before writing, this function makes sure the UART buffer is empty. As there is so much data sent over UART, buffers get in the way of operation. This directly accesses the HAL UART code to get around the buffer of the UART code. This method is blocking during the writing process.

Parameters

channel	UART channel to output the framebuffer over.
framebuffer	Framebuffer to display on the console.

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void Render_Engine_RenderFrame	(	world_t *	world,
		camera_t *	camera,
		framebuffer_t *	framebuffer
	)

Render a frame.

Renders a frame of data based on a list of triangles in the world object. Make sure the array in the framebuffer has been created as this will not create the needed array for you. This method is blocking during the rendering process.

Parameters

world	World data that contains the list of triangles in 3D space to render.
camera	Camera data that contains the location and direction of the camera.
framebuffer	Output of the rendering process populates an existing framebuffer.

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void writeTerminalBlock	(	uint8_t	channel,
		uint8_t	data
	)

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void writeTerminalNumber	(	uint8_t	channel,
		uint8_t	number
	)

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