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|
-- Information: --
-- PPU (Picture processing unit) --
-- RP2C03/RP2C04/RP2C05 with MMC5 --
-- (Memory management controller) --
return {
screen = {
width = 256,
height = 224,
vsync = 60.0985,
origin = {
x = 0,
y = -8,
},
-- Total of unique texels, pixels and vertices on VRAM --
pixels = 1081344,
texels = 16640,
vertices = false,
},
colours = {
total = 64,
limit = false,
transparent = {
sprite = 'colourKey',
tile = 'colourKey',
},
tileDepth = 'colourKey',
palettes = {
{
total = 1,
type = 'perTexel',
colours = 4,
layers = false,
},
},
},
meshes = false,
shaders = {
api = false,
version = false,
fragment = false,
vectex = false,
geometry = false,
tessellation = false,
},
physic = false,
sprites = {
-- Limit sprites on screen --
onScreen = 256,
-- Limit sprites on line (scanline) without flickering --
onLine = 8,
unique = 256,
transform = {
move = true,
rotate = false,
scale = 'flip',
shear = false,
affine = false,
},
-- Sprite sizes in pixels --
sizes = {
{
width = 8,
height = 8,
},
{
width = 8,
height = 16,
},
},
},
tiles = {
layers = {
{
-- Total tiles and pixels on VRAM --
onVRAM = {
screenSections = {
all = {
Xtiles = 64,
Ytiles = 60,
tiles = 3840,
pixels = 245760,
},
},
tiles = 'screenSections',
pixels = 'screenSections',
},
-- Total tiles and pixels on screen --
onScreen = {
screenSections = {
-- On screen section with support scrolling X and/or Y, --
-- will be include one tile by axis --
all = {
Xtiles = 32+1,
Ytiles = 30+1,
tiles = 960+32+30+1,
pixels = 61440,
},
},
tiles = 'screenSections',
pixels = 'screenSections',
},
-- Total of tiles on VRAM --
unique = {
total = 512,
},
maximum = 16384,
mirror = {
switchable = true,
nametables = 4,
'horizontal',
'vertical',
'1 screen',
'4 screen',
'diagonal',
'l shaped',
'3 screen vertical',
'3 screen horizontal',
'3 screen diagonal',
},
screenSections = {
main = {
optional = false,
moveSection = false,
{
startSection = {
x = 'startVRAM',
y = 'startVRAM',
},
endSection = {
x = 'endVRAM',
y = 'endVRAM',
},
size = {
-- Tile size in pixels --
width = 8,
height = 8,
},
transform = {
move = true,
rotate = false,
scale = false,
shear = false,
affine = false,
},
},
},
overlay0 = {
optional = true,
moveSection = true,
{
startSection = {
x = 'free',
y = 'free',
},
endSection = {
x = 'free',
y = 'free',
},
size = {
-- Tile size in pixels --
width = 8,
height = 8,
},
transform = {
move = false,
rotate = false,
scale = false,
shear = false,
affine = false,
},
},
},
overlay1 = {
optional = true,
moveSection = true,
{
startSection = {
x = 'free',
y = 'free',
},
endSection = {
x = 'free',
y = 'free',
},
size = {
-- Tile size in pixels --
width = 8,
height = 8,
},
transform = {
move = false,
rotate = false,
scale = false,
shear = false,
affine = false,
},
},
},
overlay2 = {
optional = true,
moveSection = true,
{
startSection = {
x = 'free',
y = 'free',
},
endSection = {
x = 'free',
y = 'free',
},
size = {
-- Tile size in pixels --
width = 8,
height = 8,
},
transform = {
move = false,
rotate = false,
scale = false,
shear = false,
affine = false,
},
},
},
},
},
},
},
}
|
