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start moving common parts of the renderer into OpenRA.Renderer.SdlCommon

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This commit is contained in:
Chris Forbes
2011-07-12 21:40:50 +12:00
parent 2ac6ccd3a4
commit df1201b4c2
11 changed files with 321 additions and 94 deletions
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59
OpenRA.Renderer.Gl/Shader.cs
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@@ -14,6 +14,7 @@ using System.IO;
using System.Text;
using OpenRA.FileFormats;
using OpenRA.FileFormats.Graphics;
using OpenRA.Renderer.SdlCommon;
using Tao.OpenGl;
namespace OpenRA.Renderer.Glsl
@@ -31,15 +32,15 @@ namespace OpenRA.Renderer.Glsl
vertexCode = file.ReadToEnd();
int v = Gl.glCreateShaderObjectARB(Gl.GL_VERTEX_SHADER_ARB);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glShaderSourceARB(v,1,new string[]{vertexCode},null);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glCompileShaderARB(v);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
int success;
Gl.glGetObjectParameterivARB(v, Gl.GL_OBJECT_COMPILE_STATUS_ARB, out success);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
if (success == 0)
throw new InvalidProgramException("Compile error in {0}{1}.vert".F(Path.DirectorySeparatorChar, type));
@@ -48,41 +49,41 @@ namespace OpenRA.Renderer.Glsl
using (var file = new StreamReader(FileSystem.Open("glsl{0}{1}.frag".F(Path.DirectorySeparatorChar, type))))
fragmentCode = file.ReadToEnd();
int f = Gl.glCreateShaderObjectARB(Gl.GL_FRAGMENT_SHADER_ARB);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glShaderSourceARB(f,1,new string[]{fragmentCode},null);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glCompileShaderARB(f);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glGetObjectParameterivARB(f, Gl.GL_OBJECT_COMPILE_STATUS_ARB, out success);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
if (success == 0)
throw new InvalidProgramException("Compile error in glsl{0}{1}.frag".F(Path.DirectorySeparatorChar, type));
// Assemble program
program = Gl.glCreateProgramObjectARB();
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glAttachObjectARB(program,v);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glAttachObjectARB(program,f);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glLinkProgramARB(program);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glGetObjectParameterivARB(program, Gl.GL_OBJECT_LINK_STATUS_ARB, out success);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
if (success == 0)
throw new InvalidProgramException("Linking error in {0} shader".F(type));
Gl.glUseProgramObjectARB(program);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
int numUniforms;
Gl.glGetObjectParameterivARB( program, Gl.GL_ACTIVE_UNIFORMS, out numUniforms );
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
int nextTexUnit = 1;
for( int i = 0 ; i < numUniforms ; i++ )
@@ -91,14 +92,14 @@ namespace OpenRA.Renderer.Glsl
var sb = new StringBuilder(128);
Gl.glGetActiveUniformARB( program, i, 128, out uLen, out uSize, out uType, sb );
var sampler = sb.ToString();
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
if( uType == Gl.GL_SAMPLER_2D_ARB )
{
samplers.Add( sampler, nextTexUnit );
loc = Gl.glGetUniformLocationARB(program, sampler);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glUniform1iARB( loc, nextTexUnit );
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
++nextTexUnit;
}
}
@@ -107,31 +108,31 @@ namespace OpenRA.Renderer.Glsl
public void Render(Action a)
{
Gl.glUseProgramObjectARB(program);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
// Todo: Only enable alpha blending if we need it
Gl.glEnable(Gl.GL_BLEND);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE_MINUS_SRC_ALPHA);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
a();
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glDisable(Gl.GL_BLEND);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
}
public void SetValue(string name, ITexture t)
{
if( t == null ) return;
Gl.glUseProgramObjectARB(program);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
var texture = (Texture)t;
int texUnit;
if( samplers.TryGetValue( name, out texUnit ) )
{
Gl.glActiveTextureARB( Gl.GL_TEXTURE0_ARB + texUnit );
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glBindTexture( Gl.GL_TEXTURE_2D, texture.texture );
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glActiveTextureARB( Gl.GL_TEXTURE0_ARB );
}
}
@@ -139,11 +140,11 @@ namespace OpenRA.Renderer.Glsl
public void SetValue(string name, float x, float y)
{
Gl.glUseProgramObjectARB(program);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
int param = Gl.glGetUniformLocationARB(program, name);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
Gl.glUniform2fARB(param,x,y);
GraphicsDevice.CheckGlError();
ErrorHandler.CheckGlError();
}
}
}