private ShaderCodeData ReadShaderCode(BfshaFileLoader loader, ShaderFormat format)
{
ShaderCodeData codeData = null;
if (CompressionType == 1)
{
codeData = loader.Load <ShaderCodeDataCompressed>();
}
else if (format == ShaderFormat.Source)
{
codeData = loader.Load <ShaderCodeDataSource>();
}
else
{
codeData = loader.Load <ShaderCodeDataBinary>();
}
return(codeData);
}
static Byte[] GetUnlit_VertPosTexCol(ShaderFormat shaderFormat)
{
String source = "";
if (shaderFormat == ShaderFormat.HLSL)
{
throw new NotImplementedException ();
}
if (shaderFormat == ShaderFormat.GLSL)
{
source =
@"Vertex Position, Texture Coordinate & Colour
=VSH=
attribute vec4 a_vertPosition;
attribute vec2 a_vertTexcoord;
attribute vec4 a_vertColour;
uniform mat4 u_world;
uniform mat4 u_view;
uniform mat4 u_proj;
uniform vec4 u_colour;
varying vec2 v_texCoord;
varying vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * u_world * a_vertPosition;
v_texCoord = a_vertTexcoord;
v_tint = a_vertColour * u_colour;
}
=FSH=
uniform sampler2D s_tex0;
varying vec2 v_texCoord;
varying vec4 v_tint;
void main()
{
gl_FragColor = v_tint * texture2D(s_tex0, v_texCoord);
}
";
}
if (shaderFormat == ShaderFormat.GLSL_ES)
{
source =
@"Vertex Position, Texture Coordinate & Colour
=VSH=
attribute mediump vec4 a_vertPosition;
attribute mediump vec2 a_vertTexcoord;
attribute mediump vec4 a_vertColour;
uniform mediump mat4 u_world;
uniform mediump mat4 u_view;
uniform mediump mat4 u_proj;
uniform mediump vec4 u_colour;
varying mediump vec2 v_texCoord;
varying mediump vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * u_world * a_vertPosition;
v_texCoord = a_vertTexcoord;
v_tint = a_vertColour * u_colour;
}
=FSH=
uniform mediump sampler2D s_tex0;
varying mediump vec2 v_texCoord;
varying mediump vec4 v_tint;
void main()
{
gl_FragColor = v_tint * texture2D(s_tex0, v_texCoord);
}
";
}
return Encoding.UTF8.GetBytes (source);
}
static Byte[] GetUnlit_VertPos(ShaderFormat shaderFormat)
{
String source = "";
if (shaderFormat == ShaderFormat.HLSL)
{
throw new NotImplementedException ();
}
if (shaderFormat == ShaderFormat.GLSL)
{
source =
@"Vertex Position
=VSH=
attribute vec4 a_vertPosition;
uniform mat4 u_world;
uniform mat4 u_view;
uniform mat4 u_proj;
uniform vec4 u_colour;
varying vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * u_world * a_vertPosition;
v_tint = u_colour;
}
=FSH=
varying vec4 v_tint;
void main()
{
gl_FragColor = v_tint;
}
";
}
if (shaderFormat == ShaderFormat.GLSL_ES)
{
source =
@"Vertex Position
=VSH=
attribute mediump vec4 a_vertPosition;
uniform mediump mat4 u_world;
uniform mediump mat4 u_view;
uniform mediump mat4 u_proj;
uniform mediump vec4 u_colour;
varying mediump vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * u_world * a_vertPosition;
v_tint = u_colour;
}
=FSH=
varying mediump vec4 v_tint;
void main()
{
gl_FragColor = v_tint;
}
";
}
return Encoding.UTF8.GetBytes (source);
}
static Byte[] GetUnlitShaderSource(ShaderFormat shaderFormat)
{
var encodedVariants = new [] {
GetUnlit_VertPos (shaderFormat),
GetUnlit_VertPosTex (shaderFormat),
GetUnlit_VertPosCol (shaderFormat),
GetUnlit_VertPosTexCol (shaderFormat)
};
using (var mem = new MemoryStream ())
{
using (var bin = new BinaryWriter (mem))
{
bin.Write ((Byte) encodedVariants.Length);
foreach (var variant in encodedVariants)
{
bin.Write (variant.Length);
bin.Write (variant);
}
}
return mem.GetBuffer ();
}
}
public bool IsShaderFormatSupported(ShaderFormat format) => format == ShaderFormat.GLSL;
public abstract Shader CreateShader(ShaderFormat format, string vertex, string fragment, string geometry = null);
public abstract Shader CreateShader(ShaderFormat format, ReadOnlySpan <byte> vertex, ReadOnlySpan <byte> fragment, ReadOnlySpan <byte> geometry = default);
public abstract Shader CreateShader(ShaderFormat format, Stream vertex, Stream fragment, Stream geometry = null);
public abstract bool IsShaderFormatSupported(ShaderFormat format);