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Hack in support for getViewport and setViewport

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getViewport and setViewport are currently stubs around getResolution and
setResolution
This commit is contained in:
gamax92 2016-01-10 12:14:39 -07:00
parent a53c879848
commit 0173be5116
1 changed files with 25 additions and 0 deletions
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25
src/component/gpu.lua
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@ -140,6 +140,29 @@ function obj.maxResolution() -- Get the maximum screen resolution.
local smw,smh = component.cecinvoke(bindaddress, "maxResolution")
return math.min(smw, maxwidth), math.min(smh, maxheight)
end
--STUB: Actually Implement viewport
function obj.getViewport() -- Get the current viewport resolution.
cprint("gpu.getViewport")
if bindaddress == nil then
return nil, "no screen"
end
return component.cecinvoke(bindaddress, "getResolution")
end
--STUB: Actually Implement viewport
function obj.setViewport(width, height) -- Set the viewport resolution. Returns true if the resolution changed.
cprint("gpu.setViewport", width, height)
compCheckArg(1,width,"number")
compCheckArg(2,height,"number")
if bindaddress == nil then
return nil, "no screen"
end
local smw,smh = component.cecinvoke(bindaddress, "maxResolution")
smw,smh = math.min(smw,maxwidth),math.min(smh,maxheight)
if width <= 0 or width >= smw + 1 or height <= 0 or height >= smh + 1 then
error("unsupported viewport size",3)
end
return component.cecinvoke(bindaddress, "setResolution", width, height)
end
function obj.getPaletteColor(index) -- Get the palette color at the specified palette index.
cprint("gpu.getPaletteColor", index)
compCheckArg(1,index,"number")
@ -225,6 +248,8 @@ local doc = {
["getResolution"]="function():number, number -- Get the current screen resolution.",
["setResolution"]="function(width:number, height:number):boolean -- Set the screen resolution. Returns true if the resolution changed.",
["maxResolution"]="function():number, number -- Get the maximum screen resolution.",
["getViewport"]="function():number, number -- Get the current viewport resolution.",
["setViewport"]="function(width:number, height:number):boolean -- Set the viewport resolution. Returns true if the resolution changed.",
["getPaletteColor"]="function(index:number):number -- Get the palette color at the specified palette index.",
["setPaletteColor"]="function(index:number, color:number):number -- Set the palette color at the specified palette index. Returns the previous value.",
["get"]="function(x:number, y:number):string, number, number, number or nil, number or nil -- Get the value displayed on the screen at the specified index, as well as the foreground and background color. If the foreground or background is from the palette, returns the palette indices as fourth and fifth results, else nil, respectively.",