public MagicBackground()
{
shader = new Shader();
float v = Shader.Version;
shader.LoadVertexFile(Path.Combine("Effects", v < 3.3f ? "v12" : "v33", "magic_background.vert"));
shader.LoadFragmentFile(Path.Combine("Effects", v < 3.3f ? "v12" : "v33", "magic_background.frag"));
shader.Link();
buffer = new VertexBuffer(4);
buffer.DeclareNextAttribute("vposition", 2);
buffer.DeclareNextAttribute("vtexcoord", 2);
buffer.DeclareNextAttribute("vcolor", 4);
buffer.Attach(shader);
buffer.AddVertex(-1, -1, 0, 0, 1f, 1f, 1f, 1f);
buffer.AddVertex(1, -1, 1, 0, 1f, 1f, 1f, 1f);
buffer.AddVertex(1, 1, 1, 1, 1, 1, 1, 1);
buffer.AddVertex(-1, 1, 0, 1, 1, 1, 1, 1);
buffer.AddIndices(0, 1, 2, 0, 2, 3);
buffer.UpdateBuffer();
}
public void Init()
{
blood_blend_shader = new Shader();
float v = Shader.Version;
blood_blend_shader.LoadVertexFile(Path.Combine("Effects", v < 3.3f ? "v12" : "v33", "blood_blend.vert"));
blood_blend_shader.LoadFragmentFile(Path.Combine("Effects", v < 3.3f ? "v12" : "v33", "blood_blend.frag"));
blood_blend_shader.Link();
blend_buffer = new VertexBuffer(4);
blend_buffer.DeclareNextAttribute("vposition", 2);
blend_buffer.DeclareNextAttribute("vtexcoord", 2);
blend_buffer.DeclareNextAttribute("vcolor", 4);
blend_buffer.Attach(blood_blend_shader);
blend_buffer.AddVertex(-1, -1, 0, 0, 1f, 1f, 1f, 1f);
blend_buffer.AddVertex(1, -1, 1, 0, 1f, 1f, 1f, 1f);
blend_buffer.AddVertex(1, 1, 1, 1, 1, 1, 1, 1);
blend_buffer.AddVertex(-1, 1, 0, 1, 1, 1, 1, 1);
blend_buffer.AddIndices(0, 1, 2, 0, 2, 3);
blend_buffer.UpdateBuffer();
}
public void Attach(Shader shader)
{
if (!Bind())
return;
GL.BindBuffer(BufferTarget.ArrayBuffer, VertexDataBufferObject);
shader.Use();
int off = 0;
for (int i = 0; i < declarations.Count; i++)
{
int location = GL.GetAttribLocation(shader.Handle, declarations[i].name);
if (location != -1)
{
GL.VertexAttribPointer(location, declarations[i].elements, VertexAttribPointerType.Float, false, stride * sizeof(float), off);
GL.EnableVertexAttribArray(location);
}
off += declarations[i].elements * sizeof(float);
}
GL.BindBuffer(BufferTarget.ElementArrayBuffer, IndexDataBufferObject);
}
private static void LoadMaterials(XmlNode main)
{
XmlNode material = main.SelectSingleNode("Materials");
XmlNodeList materials = material.SelectNodes("Material");
string basePath = material.Attributes["basePath"].Value;
foreach (XmlNode item in materials)
{
string name = item.Attributes["gameName"].Value;
string vshader = item.Attributes["vshader"].Value;
string fshader = item.Attributes["fshader"].Value;
XmlNodeList @params = item.SelectNodes("Param");
Shader shader = new Shader();
shader.LoadVertexFile(basePath + "//" + vshader);
shader.LoadFragmentFile(basePath + "//" + fshader);
shader.Link();
Material mat = new Material(shader);
foreach (XmlNode param in @params)
{
string paramName = param.Attributes["name"].Value;
string paramType = param.Attributes["type"].Value;
string paramValue = param.Attributes["value"].Value;
mat.SetParameter(paramName, paramType, paramValue);
}
_materials[name] = mat;
}
}
public SpriteBatch()
{
_batchItemList = new List<BatchItem>(256);
_freeBatchItemQueue = new Queue<BatchItem>(256);
vbuffer = new VertexBuffer(1024);
defaultShader = new Shader();
if (Shader.Version < 3.3f)
{
defaultShader.LoadVertexSource(@"#version 120
uniform mat4 projection, view;
attribute vec2 vposition;
attribute vec4 vcolor;
attribute vec2 vtexcoord;
varying vec4 fcolor;
varying vec2 ftexcoord;
void main(void)
{
fcolor = vcolor;
ftexcoord = vtexcoord;
gl_Position = projection * view * vec4(vposition, 0, 1);
}");
defaultShader.LoadFragmentSource(@"#version 120
uniform sampler2D colorTexture;
varying vec4 fcolor; varying vec2 ftexcoord;
void main(void) { gl_FragColor = texture2D(colorTexture, ftexcoord) * fcolor; }");
}
else
{
defaultShader.LoadVertexSource(@"#version 330 core
uniform mat4 projection, view;
in vec2 vposition; in vec4 vcolor; in vec2 vtexcoord;
out vec4 fcolor; out vec2 ftexcoord;
void main(void) {
fcolor = vcolor;
ftexcoord = vtexcoord;
gl_Position = projection * view * vec4(vposition, 0, 1); }");
defaultShader.LoadFragmentSource(@"#version 330 core
uniform sampler2D colorTexture;
in vec4 fcolor; in vec2 ftexcoord;
out vec4 color;
void main(void) { color = texture(colorTexture, ftexcoord) * fcolor; }");
}
defaultShader.Link();
BindShader(this.defaultShader, "vposition", "vcolor", "vtexcoord", "projection", "view");
int[] p = new int[4];
GL.GetInteger(GetPName.Viewport, p);
proj = Matrix4.CreateOrthographicOffCenter(p[0], p[2], p[3], p[1], 1, -1);
GL.GenTextures(1, out pixelTex);
GL.BindTexture(TextureTarget.Texture2D, pixelTex);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.GenerateMipmap, 0);
float[] pix = new float[] { 1.0f, 1.0f, 1.0f, 1.0f };
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, 1, 1, 0,
PixelFormat.Bgra, PixelType.Float, pix);
}
public void End()
{
int pr;
GL.GetInteger(GetPName.CurrentProgram,out pr);
if(current == null)
{
current = defaultShader;
current.Use();
}
if (current.Program != pr)
current.Use();
current.SetUniform(proj_uniform_loc, ref proj);
current.SetUniform(view_uniform_loc, ref trans);
// nothing to do
if (_batchItemList.Count == 0)
return;
vbuffer.Bind();
vbuffer.UpdateVertexBuffer();
vbuffer.UpdateIndexBuffer();
int texID = -1;
BeginMode mode = BeginMode.Triangles;
float lineWidth;
float pointSize;
GL.GetFloat(GetPName.LineWidth, out lineWidth);
GL.GetFloat(GetPName.PointSize, out pointSize);
int offset = 0, count = 0;
foreach (BatchItem item in _batchItemList)
{
if (item.texture != texID || item.mode != mode || lineWidth != item.lineWidth || pointSize != item.pointSize)
{
FlushBuffer(mode, offset, count);
offset += count;
count = 0;
texID = item.texture;
mode = item.mode;
lineWidth = item.lineWidth;
pointSize = item.pointSize;
GL.BindTexture(TextureTarget.Texture2D, texID);
GL.LineWidth(item.lineWidth);
GL.PointSize(item.pointSize);
}
count += item.count;
_freeBatchItemQueue.Enqueue(item);
}
// flush the remaining vertexArray data
FlushBuffer(mode, offset, count);
vbuffer.ClearBuffer();
_batchItemList.Clear();
}
public void BindShader(Shader shader, string positionAttrib, string colorAttrib, string texcoordAttrib, string projectionUniform, string viewUniform)
{
vbuffer.ClearAttributeDeclarations();
vbuffer.DeclareNextAttribute(positionAttrib, 2);
vbuffer.DeclareNextAttribute(colorAttrib, 4);
vbuffer.DeclareNextAttribute(texcoordAttrib, 2);
vbuffer.Attach(shader);
proj_uniform_loc = GL.GetUniformLocation(shader.Program, projectionUniform);
view_uniform_loc = GL.GetUniformLocation(shader.Program, viewUniform);
shader.Use();
current = shader;
}
internal Material(Shader shader)
{
Shader = shader;
}
public void BindShader(Shader shader, string positionAttrib, string colorAttrib, string texcoordAttrib)
{
vbuffer.ClearAttributeDeclarations();
vbuffer.DeclareNextAttribute(positionAttrib, 2);
vbuffer.DeclareNextAttribute(colorAttrib, 4);
vbuffer.DeclareNextAttribute(texcoordAttrib, 2);
vbuffer.Attach(shader);
shader.Use();
}
public void ResetShader(Shader shader = null)
{
BindShader(shader == null ? defaultMaterial.Shader : shader, "vposition", "vcolor", "vtexcoord");
}
