anonymous_namespace{rasterizer.cpp} Namespace Reference

Typedefs
using	write_f = void(FrameBuffer::*)(std::size_t, std::size_t, texel4)

Functions
auto	to_clip (mat4 proj, nngn::Vertex v0, nngn::Vertex v1, auto &&f)
	Transforms world-space vertices into clip space.
bool	clip (vec3 bl, vec3 tr)
	Checks whether a sprite lies entirely outside of the clip volume.
std::size_t	clamp_floor (float max, float v)
	Clamps value between 0 and max, rounds toward -infinity.
std::size_t	clamp_ceil (float max, float v)
	Clamps value between 0 and max, rounds toward +infinity.
float	uv_coord (float p0, std::size_t p, float p1, float t0, float t1)
	Calculates texture coordinates for a given position in a sprite.
vec2	to_screen (uvec2 size, vec3 v)
	Transforms clip-space vertices into screen space.
write_f	write_fn_for_mode (nngn::Graphics::TerminalMode m)
void	sprite (std::span< const nngn::Vertex > vbo, std::span< const u32 > ebo, mat4 proj, std::span< const Texture > textures, FrameBuffer *fb, TerminalMode mode, auto &&pos_f)

Typedef Documentation

write_f

typedef void(FrameBuffer::* anonymous_namespace{rasterizer.cpp}::write_f)(std::size_t, std::size_t, texel4)

Function Documentation

clamp_ceil()

std::size_t anonymous_namespace{rasterizer.cpp}::clamp_ceil	(	float	max,
		float	v
	)

Clamps value between 0 and max, rounds toward +infinity.

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clamp_floor()

std::size_t anonymous_namespace{rasterizer.cpp}::clamp_floor	(	float	max,
		float	v
	)

Clamps value between 0 and max, rounds toward -infinity.

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clip()

bool anonymous_namespace{rasterizer.cpp}::clip	(	vec3	bl,
		vec3	tr
	)

Checks whether a sprite lies entirely outside of the clip volume.

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sprite()

void anonymous_namespace{rasterizer.cpp}::sprite	(	std::span< const nngn::Vertex >	vbo,
		std::span< const u32 >	ebo,
		mat4	proj,
		std::span< const Texture >	textures,
		FrameBuffer *	fb,
		TerminalMode	mode,
		auto &&	pos_f
	)

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to_clip()

auto anonymous_namespace{rasterizer.cpp}::to_clip ( mat4  proj, nngn::Vertex  v0, nngn::Vertex  v1, auto &&  f  )

inline

Transforms world-space vertices into clip space.

Returns

{bl, tr, bt, tt}: vertices / texture coordinates

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to_screen()

vec2 anonymous_namespace{rasterizer.cpp}::to_screen	(	uvec2	size,
		vec3	v
	)

Transforms clip-space vertices into screen space.

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uv_coord()

float anonymous_namespace{rasterizer.cpp}::uv_coord	(	float	p0,
		std::size_t	p,
		float	p1,
		float	t0,
		float	t1
	)

Calculates texture coordinates for a given position in a sprite.

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write_fn_for_mode()

write_f anonymous_namespace{rasterizer.cpp}::write_fn_for_mode

(

nngn::Graphics::TerminalMode

m

)

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