//
// SETUP GRAPHICS
// Sets up the transforms for the 2d render and setup the basic effect
//
public PrimitiveRenderer(Platform platform)
{
var shaderDecl =
new ShaderDeclaration {
Name = "Primitive Batch Shader",
InputDeclarations = new List<ShaderInputDeclaration> {
new ShaderInputDeclaration {
Name = "a_vertPosition",
NiceName = "Position",
Optional = false,
Usage = VertexElementUsage.Position,
DefaultValue = Vector3.Zero
},
new ShaderInputDeclaration {
Name = "a_vertTexcoord",
NiceName = "TextureCoordinate",
Optional = false,
Usage = VertexElementUsage.TextureCoordinate,
DefaultValue = Vector2.Zero
},
new ShaderInputDeclaration {
Name = "a_vertColour",
NiceName = "Colour",
Optional = false,
Usage = VertexElementUsage.Colour,
DefaultValue = Rgba32.White
}
},
VariableDeclarations = new List<ShaderVariableDeclaration> {
new ShaderVariableDeclaration {
Name = "u_view",
NiceName = "View",
DefaultValue = Matrix44.Identity
},
new ShaderVariableDeclaration {
Name = "u_proj",
NiceName = "Projection",
DefaultValue = Matrix44.Identity
}
},
SamplerDeclarations = new List<ShaderSamplerDeclaration> {
new ShaderSamplerDeclaration {
Name = "s_tex0",
NiceName = "TextureSampler",
Optional = true
}
}
};
String source = "";
var runtimeShaderFormat = platform.Graphics.GetRuntimeShaderFormat ();
if (runtimeShaderFormat == ShaderFormat.HLSL)
{
throw new NotImplementedException ();
}
else if (runtimeShaderFormat == ShaderFormat.GLSL)
{
source =
@"Primitive Batch Shader
=VSH=
attribute vec4 a_vertPosition;
attribute vec2 a_vertTexcoord;
attribute vec4 a_vertColour;
uniform mat4 u_view;
uniform mat4 u_proj;
varying vec2 v_texCoord;
varying vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * a_vertPosition;
v_texCoord = a_vertTexcoord;
v_tint = a_vertColour;
}
=FSH=
uniform sampler2D s_tex0;
varying vec2 v_texCoord;
varying vec4 v_tint;
void main()
{
vec4 a = texture2D(s_tex0, v_texCoord);
gl_FragColor = v_tint * a;
}
";
}
else if (runtimeShaderFormat == ShaderFormat.GLSL_ES)
{
source =
@"Primitive Batch Shader
=VSH=
attribute mediump vec4 a_vertPosition;
attribute mediump vec2 a_vertTexcoord;
attribute mediump vec4 a_vertColour;
uniform mediump mat4 u_view;
uniform mediump mat4 u_proj;
varying mediump vec2 v_texCoord;
varying mediump vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * a_vertPosition;
v_texCoord = a_vertTexcoord;
v_tint = a_vertColour;
}
=FSH=
uniform mediump sampler2D s_tex0;
varying mediump vec2 v_texCoord;
varying mediump vec4 v_tint;
void main()
{
mediump vec4 a = texture2D(s_tex0, v_texCoord);
gl_FragColor = v_tint * a;
}
";
}
else throw new NotSupportedException ();
Byte[] shaderUTF8 = System.Text.Encoding.UTF8.GetBytes (source);
using (var mem = new System.IO.MemoryStream ())
{
using (var bin = new System.IO.BinaryWriter (mem))
{
bin.Write ((Byte)1);
bin.Write (shaderUTF8.Length);
bin.Write (shaderUTF8);
}
shader = platform.Graphics.CreateShader (
shaderDecl,
runtimeShaderFormat,
mem.GetBuffer ());
}
// Set the index buffer for each vertex, using
// clockwise winding
for (int i = 0, vertex = 0; i < quadIndices.Length; i += 6, vertex += 4)
{
quadIndices[i + 0] = vertex + 0;
quadIndices[i + 1] = vertex + 1;
quadIndices[i + 2] = vertex + 2;
quadIndices[i + 3] = vertex + 0;
quadIndices[i + 4] = vertex + 2;
quadIndices[i + 5] = vertex + 3;
}
}
static Shader CreateShader(Platform platform)
{
var shaderDecl =
new ShaderDeclaration {
Name = "Primitive Batch Shader",
InputDeclarations = new List<ShaderInputDeclaration> {
new ShaderInputDeclaration {
Name = "a_vertPosition",
NiceName = "Position",
Optional = false,
Usage = VertexElementUsage.Position,
DefaultValue = Vector3.Zero
},
new ShaderInputDeclaration {
Name = "a_vertColour",
NiceName = "Colour",
Optional = false,
Usage = VertexElementUsage.Colour,
DefaultValue = Rgba32.White
}
},
VariableDeclarations = new List<ShaderVariableDeclaration> {
new ShaderVariableDeclaration {
Name = "u_view",
NiceName = "View",
DefaultValue = Matrix44.Identity
},
new ShaderVariableDeclaration {
Name = "u_proj",
NiceName = "Projection",
DefaultValue = Matrix44.Identity
}
},
SamplerDeclarations = new List<ShaderSamplerDeclaration> ()
};
var runtimeShaderFormat = platform.Graphics.GetRuntimeShaderFormat ();
String source = "";
if (runtimeShaderFormat == ShaderFormat.HLSL)
{
throw new NotImplementedException ();
}
else if (runtimeShaderFormat == ShaderFormat.GLSL)
{
source =
@"Debug Shader
=VSH=
attribute vec4 a_vertPosition;
attribute vec4 a_vertColour;
uniform mat4 u_view;
uniform mat4 u_proj;
varying vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * a_vertPosition;
gl_Position = u_proj * u_view * a_vertPosition;
v_tint = a_vertColour;
}
=FSH=
varying vec4 v_tint;
void main()
{
gl_FragColor = v_tint;
}
";
}
else if (runtimeShaderFormat == ShaderFormat.GLSL_ES)
{
source =
@"Debug Shader
=VSH=
attribute mediump vec4 a_vertPosition;
attribute mediump vec4 a_vertColour;
uniform mediump mat4 u_view;
uniform mediump mat4 u_proj;
varying mediump vec4 v_tint;
void main()
{
gl_Position = u_proj * u_view * a_vertPosition;
v_tint = a_vertColour;
}
=FSH=
varying mediump vec4 v_tint;
void main()
{
gl_FragColor = v_tint;
}
";
}
else throw new NotSupportedException ();
Byte[] shaderUTF8 = System.Text.Encoding.UTF8.GetBytes (source);
using (var mem = new System.IO.MemoryStream ())
{
using (var bin = new System.IO.BinaryWriter (mem))
{
bin.Write ((Byte)1);
bin.Write (shaderUTF8.Length);
bin.Write (shaderUTF8);
}
return platform.Graphics.CreateShader (
shaderDecl,
runtimeShaderFormat,
mem.GetBuffer ());
}
return null;
}
