epic/OpenRA
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Extract vertex attributes

Browse Source
This commit is contained in:
Gustas
2023-09-13 12:57:47 +03:00
committed by Matthias Mailänder
parent 0a90c2a95e
commit 26b6118f50
10 changed files with 149 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
OpenRA.Platforms.Default/Shader.cs
View File

@@ -18,24 +18,16 @@ namespace OpenRA.Platforms.Default
{
sealed class Shader : ThreadAffine, IShader
{
public const int VertexPosAttributeIndex = 0;
public const int TexCoordAttributeIndex = 1;
public const int TexMetadataAttributeIndex = 2;
public const int TintAttributeIndex = 3;
readonly Dictionary<string, int> samplers = new();
readonly Dictionary<int, int> legacySizeUniforms = new();
readonly Dictionary<string, int> uniformCache = new();
readonly Dictionary<int, ITexture> textures = new();
readonly Queue<int> unbindTextures = new();
readonly IShaderBindings bindings;
readonly uint program;
static uint CompileShaderObject(int type, string name)
static uint CompileShaderObject(int type, string code, string name)
{
var ext = type == OpenGL.GL_VERTEX_SHADER ? "vert" : "frag";
var filename = Path.Combine(Platform.EngineDir, "glsl", name + "." + ext);
var code = File.ReadAllText(filename);
var version = OpenGL.Profile == GLProfile.Embedded ? "300 es" :
OpenGL.Profile == GLProfile.Legacy ? "120" : "140";
@@ -61,29 +53,29 @@ namespace OpenRA.Platforms.Default
OpenGL.glGetShaderInfoLog(shader, len, out _, log);
Log.Write("graphics", $"GL Info Log:\n{log}");
throw new InvalidProgramException($"Compile error in shader object '{filename}'");
throw new InvalidProgramException($"Compile error in shader object {name}.");
}
return shader;
}
public Shader(string name)
public Shader(IShaderBindings bindings)
{
var vertexShader = CompileShaderObject(OpenGL.GL_VERTEX_SHADER, name);
var fragmentShader = CompileShaderObject(OpenGL.GL_FRAGMENT_SHADER, name);
var vertexShader = CompileShaderObject(OpenGL.GL_VERTEX_SHADER, bindings.VertexShaderCode, bindings.VertexShaderName);
var fragmentShader = CompileShaderObject(OpenGL.GL_FRAGMENT_SHADER, bindings.FragmentShaderCode, bindings.FragmentShaderName);
// Assemble program
program = OpenGL.glCreateProgram();
OpenGL.CheckGLError();
OpenGL.glBindAttribLocation(program, VertexPosAttributeIndex, "aVertexPosition");
OpenGL.CheckGLError();
OpenGL.glBindAttribLocation(program, TexCoordAttributeIndex, "aVertexTexCoord");
OpenGL.CheckGLError();
OpenGL.glBindAttribLocation(program, TexMetadataAttributeIndex, "aVertexTexMetadata");
OpenGL.CheckGLError();
OpenGL.glBindAttribLocation(program, TintAttributeIndex, "aVertexTint");
OpenGL.CheckGLError();
this.bindings = bindings;
for (ushort i = 0; i < bindings.Attributes.Length; i++)
{
OpenGL.glEnableVertexAttribArray(i);
OpenGL.CheckGLError();
OpenGL.glBindAttribLocation(program, i, bindings.Attributes[i].Name);
OpenGL.CheckGLError();
}
if (OpenGL.Profile == GLProfile.Modern)
{
@@ -107,7 +99,7 @@ namespace OpenRA.Platforms.Default
var log = new StringBuilder(len);
OpenGL.glGetProgramInfoLog(program, len, out _, log);
Log.Write("graphics", $"GL Info Log:\n{log}");
throw new InvalidProgramException($"Link error in shader program '{name}'");
throw new InvalidProgramException($"Link error in shader program '{bindings.VertexShaderName}' and '{bindings.FragmentShaderName}'");
}
OpenGL.glUseProgram(program);
@@ -148,6 +140,16 @@ namespace OpenRA.Platforms.Default
}
}
public void Bind()
{
for (ushort i = 0; i < bindings.Attributes.Length; i++)
{
var attribute = bindings.Attributes[i];
OpenGL.glVertexAttribPointer(i, attribute.Components, OpenGL.GL_FLOAT, false, bindings.Stride, new IntPtr(attribute.Offset));
OpenGL.CheckGLError();
}
}
public void PrepareRender()
{
VerifyThreadAffinity();