framebuffer_effects.c File Reference

#include <libultraship.h>
#include "framebuffer_effects.h"
#include "mk64.h"
#include <assets/common_data.h>
#include "port/Engine.h"
#include "port/interpolation/matrix.h"
#include "math_util.h"
#include <stdio.h>

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Functions
int	gfx_create_framebuffer (uint32_t width, uint32_t height, uint32_t native_width, uint32_t native_height, uint8_t resize)
void	FB_CreateFramebuffers (void)
void	FB_CopyToFramebuffer (Gfx **gfxP, s32 fb_src, s32 fb_dest, u8 oncePerFrame, u8 *hasCopied)
void	FB_WriteFramebufferSliceToCPU (Gfx **gfxP, void *buffer, u8 byteSwap)
void	FB_DrawFromFramebuffer (Gfx **gfxP, s32 fb, u8 alpha)
void	FB_DrawFromFramebufferScaled (Gfx **gfxP, s32 fb, u8 alpha, float scaleX, float scaleY)

Variables
s32	gReusableFrameBuffer = -1
s32	gN64ResFrameBuffer = -1

Function Documentation

FB_CopyToFramebuffer()

void FB_CopyToFramebuffer	(	Gfx **	gfxP,
		s32	fb_src,
		s32	fb_dest,
		u8	oncePerFrame,
		u8 *	hasCopied )

Copies the current texture data from the source frame buffer to the destination frame buffer Setting oncePerFrame ensures that the copy will only happen once every game frame. This is important for effects that could be affected by increased frame interpolation (like motion blur). A pointer to a boolean is passed to the render for the render to set once the copy has been performed. This function uses opcodes from f3dex2 but may be called when s2dex is loaded, such as during shrink window. Make sure f3dex2 is loaded before this function is called.

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FB_CreateFramebuffers()

void FB_CreateFramebuffers

(

void

)

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FB_DrawFromFramebuffer()

void FB_DrawFromFramebuffer	(	Gfx **	gfxP,
		s32	fb,
		u8	alpha )

Draws the texture data from the specified frame buffer as a full screen image

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FB_DrawFromFramebufferScaled()

void FB_DrawFromFramebufferScaled	(	Gfx **	gfxP,
		s32	fb,
		u8	alpha,
		float	scaleX,
		float	scaleY )

Similar to FB_DrawFromFramebuffer, but scales the image relative to the center of the screen. This function uses opcodes from f3dex2 but may be called when s2dex is loaded, such as during shrink window. Make sure f3dex2 is loaded before this function is called.

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FB_WriteFramebufferSliceToCPU()

void FB_WriteFramebufferSliceToCPU	(	Gfx **	gfxP,
		void *	buffer,
		u8	byteSwap )

Copies a 4:3 slice of the current framebuffer scaled down to 320x240 to a CPU buffer address. The buffer output will be in RGBA16 format. Specify the byteswap flag to force the buffer data to be written as BigEndian, which is required if the buffer is being used as a texture in F3D.

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gfx_create_framebuffer()

int gfx_create_framebuffer	(	uint32_t	width,
		uint32_t	height,
		uint32_t	native_width,
		uint32_t	native_height,
		uint8_t	resize )

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Variable Documentation

gN64ResFrameBuffer

s32 gN64ResFrameBuffer = -1

gReusableFrameBuffer

s32 gReusableFrameBuffer = -1