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VB/IB/error checking

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This commit is contained in:
Chris Forbes
2010-02-15 17:26:20 +13:00
parent 915c8f997e
commit e1466829ac
1 changed files with 87 additions and 10 deletions
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95
OpenRa.Gl/GraphicsDevice.cs
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@@ -13,8 +13,15 @@ namespace OpenRa.GlRenderer
public class GraphicsDevice public class GraphicsDevice
{ {
Graphics g; Graphics g;
IntPtr dc; public IntPtr dc;
IntPtr rc; public IntPtr rc;
public static void CheckGlError()
{
var n = Gl.glGetError();
if (n != Gl.GL_NO_ERROR)
throw new InvalidOperationException("GL Error");
}
public GraphicsDevice(Control control, int width, int height, bool fullscreen, bool vsync) public GraphicsDevice(Control control, int width, int height, bool fullscreen, bool vsync)
{ {
@@ -43,12 +50,15 @@ namespace OpenRa.GlRenderer
public void EnableScissor(int left, int top, int width, int height) public void EnableScissor(int left, int top, int width, int height)
{ {
Gl.glScissor(left, top, width, height); Gl.glScissor(left, top, width, height);
CheckGlError();
Gl.glEnable(Gl.GL_SCISSOR_TEST); Gl.glEnable(Gl.GL_SCISSOR_TEST);
CheckGlError();
} }
public void DisableScissor() public void DisableScissor()
{ {
Gl.glDisable(Gl.GL_SCISSOR_TEST); Gl.glDisable(Gl.GL_SCISSOR_TEST);
CheckGlError();
} }
public void Begin() { } public void Begin() { }
@@ -57,12 +67,15 @@ namespace OpenRa.GlRenderer
public void Clear(Color c) public void Clear(Color c)
{ {
Gl.glClearColor(1, 1, 1, 1); Gl.glClearColor(1, 1, 1, 1);
CheckGlError();
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT); Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);
CheckGlError();
} }
public void Present() public void Present()
{ {
Wgl.wglSwapBuffers(dc); Wgl.wglSwapBuffers(dc);
CheckGlError();
} }
public void DrawIndexedPrimitives(PrimitiveType pt, Range<int> vertices, Range<int> indices) { } public void DrawIndexedPrimitives(PrimitiveType pt, Range<int> vertices, Range<int> indices) { }
@@ -76,16 +89,80 @@ namespace OpenRa.GlRenderer
public class VertexBuffer<T> where T : struct public class VertexBuffer<T> where T : struct
{ {
public VertexBuffer(GraphicsDevice dev, int size, VertexFormat fmt) { } int buffer;
public void SetData(T[] data) { }
public void Bind() { } public VertexBuffer(GraphicsDevice dev, int size, VertexFormat fmt)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
} }
public class IndexBuffer public void SetData(T[] data)
{ {
public IndexBuffer(GraphicsDevice dev, int size) { } Bind();
public void SetData(ushort[] data) { } Gl.glBufferData(Gl.GL_ARRAY_BUFFER,
public void Bind() { } new IntPtr(Marshal.SizeOf(typeof(T))), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
Gl.glVertexPointer(3, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), IntPtr.Zero);
GraphicsDevice.CheckGlError();
Gl.glTexCoordPointer(4, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), new IntPtr(12));
GraphicsDevice.CheckGlError();
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
//~VertexBuffer() { Dispose(); }
}
public class IndexBuffer : IDisposable
{
int buffer;
public IndexBuffer(GraphicsDevice dev, int size)
{
Gl.glGenBuffers(1, out buffer);
GraphicsDevice.CheckGlError();
}
public void SetData(ushort[] data)
{
Bind();
Gl.glBufferData(Gl.GL_ELEMENT_ARRAY_BUFFER,
new IntPtr(2 * data.Length), data, Gl.GL_DYNAMIC_DRAW);
GraphicsDevice.CheckGlError();
}
public void Bind()
{
Gl.glBindBuffer(Gl.GL_ELEMENT_ARRAY_BUFFER, buffer);
GraphicsDevice.CheckGlError();
}
bool disposed;
public void Dispose()
{
if (disposed) return;
GC.SuppressFinalize(this);
Gl.glDeleteBuffers(1, ref buffer);
GraphicsDevice.CheckGlError();
disposed = true;
}
//~IndexBuffer() { Dispose(); }
} }
public class Shader public class Shader