private static void SetParameters(TextureWraps wrap, TextureFilters filter)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (int)filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (int)filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, (int)wrap);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, (int)wrap);
}
public Sprite(string filename, ivec2 origin, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) :
this(ContentCache.GetTexture(filename, false, true, wrap, filter), new SourceRect(),
Alignments.Custom)
{
this.origin = origin;
}
public unsafe Texture(int width, int height, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) : base(width, height)
{
uint id = 0;
glGenTextures(1, &id);
SetParameters(wrap, filter);
Id = id;
}
public static unsafe Texture Load(string filename, string folder, bool shouldStoreData = false,
TextureWraps wrap = TextureWraps.Repeat, TextureFilters filter = TextureFilters.Nearest)
{
LoadData(folder + filename, out var width, out var height, out var data);
uint id = 0;
glGenTextures(1, &id);
// Setting data also binds the texture.
var texture = new Texture(id, width, height);
texture.SetData(data, shouldStoreData);
SetParameters(wrap, filter);
return(texture);
}
public static Texture GetTexture(string filename, bool shouldStoreData = false, bool shouldCache = true,
TextureWraps wrap = TextureWraps.Repeat, TextureFilters filter = TextureFilters.Nearest,
string folder = "Textures/")
{
Debug.Assert(!string.IsNullOrEmpty(filename), "Texture filename can't be null or empty.");
Debug.Assert(!string.IsNullOrEmpty(folder), "Texture folder can't be null or empty.");
if (!textures.TryGetValue(filename, out var texture))
{
texture = Texture.Load(filename, folder, shouldStoreData, wrap, filter);
if (shouldCache)
{
textures.Add(filename, texture);
}
}
return(texture);
}
public Texture(int width, int height, Core.Color[] data, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) : this(width, height, wrap, filter)
{
SetData(width, height, data.Select(color => color.ToRgba()).ToArray());
}
// These public constructors is useful when generating textures dynamically at runtime.
public Texture(int width, int height, Core.Color fill, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) : this(width, height, wrap, filter)
{
SetData(width, height, Enumerable.Repeat(fill.ToRgba(), width * height).ToArray());
}
public unsafe RenderTarget(int width, int height, RenderTargetFlags flags,
TextureWraps wrap = TextureWraps.Repeat, TextureFilters filter = TextureFilters.Nearest) :
base(width, height)
{
fixed(uint *address = &framebufferId)
{
glGenFramebuffers(1, address);
}
glBindFramebuffer(GL_FRAMEBUFFER, framebufferId);
uint id;
glGenTextures(1, &id);
glBindTexture(GL_TEXTURE_2D, id);
Id = id;
var isColorEnabled = (flags & RenderTargetFlags.Color) > 0;
var isDepthEnabled = (flags & RenderTargetFlags.Depth) > 0;
var isStencilEnabled = (flags & RenderTargetFlags.Stencil) > 0;
uint texFormat;
uint texType;
uint texAttachment;
if (isColorEnabled)
{
texFormat = GL_RGBA;
texType = GL_UNSIGNED_BYTE;
texAttachment = GL_COLOR_ATTACHMENT0;
}
else
{
texFormat = GL_DEPTH_COMPONENT;
texType = GL_FLOAT;
texAttachment = GL_DEPTH_ATTACHMENT;
}
glTexImage2D(GL_TEXTURE_2D, 0, (int)texFormat, (uint)width, (uint)height, 0, texFormat, texType, null);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (int)filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (int)filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, (int)wrap);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, (int)wrap);
glFramebufferTexture2D(GL_FRAMEBUFFER, texAttachment, GL_TEXTURE_2D, id, 0);
if (!isColorEnabled)
{
glDrawBuffer(GL_NONE);
glReadBuffer(GL_NONE);
}
else if (isDepthEnabled)
{
var format = (uint)(isStencilEnabled ? GL_DEPTH24_STENCIL8 : GL_DEPTH_COMPONENT);
var attachment = (uint)(isStencilEnabled ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT);
fixed(uint *address = &renderbufferId)
{
glGenRenderbuffers(1, address);
}
glBindRenderbuffer(GL_RENDERBUFFER, renderbufferId);
glRenderbufferStorage(GL_RENDERBUFFER, format, (uint)width, (uint)height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, renderbufferId);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
}
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
Debug.Fail("Error creating render target.");
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (isColorEnabled)
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
if (isDepthEnabled)
{
clearBits |= GL_DEPTH_BUFFER_BIT;
}
if (isStencilEnabled)
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
}
public RenderTarget(ivec2 dimensions, RenderTargetFlags flags, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) :
this(dimensions.x, dimensions.y, flags, wrap, filter)
{
}
public Sprite(string filename, SourceRect sourceRect, Alignments alignment = Alignments.Center,
SpriteModifiers mods = SpriteModifiers.None, TextureWraps wrap = TextureWraps.Repeat,
TextureFilters filter = TextureFilters.Nearest) :
this(ContentCache.GetTexture(filename, false, true, wrap, filter), sourceRect, alignment, mods)
{
}