aboutsummaryrefslogtreecommitdiff
path: root/src/lua/embed/graphics.lua.h
blob: 5fa5dadc3bb8b102d57a6dc234712df54f5ba12c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/* graphics.lua */
static const char* graphics_lua = R"(
jin.graphics = jin.graphics or {} 

local default_shader = nil
local default_shader_source = [[
#VERTEX_SHADER

Vertex vert(Vertex v)
{
    return v;
}

#END_VERTEX_SHADER

#FRAGMENT_SHADER

Color frag(Color col, Texture tex, Vertex v)
{
    return col * texel(tex, v.uv);
}

#END_FRAGMENT_SHADER
]]

local _init = jin.graphics.init

jin.graphics.init = function(setting) 
    _init(setting);
    default_shader = jin.graphics.newShader(default_shader_source)
    jin.graphics.useShader(default_shader)
end

jin.graphics.unuseShader = function()
    jin.graphics.useShader(default_shader)
end

-- Reset all attributes to default value.
jin.graphics.reset = function()
    jin.graphics.setColor(255, 255, 255, 255)
    jin.graphics.setClearColor(0, 0, 0, 255)
    jin.graphics.clear()
    jin.graphics.unsetFont()
end

)";