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Simplifying PlatformLayer a bit. Setting up texture loading

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Matt Thorson
2020-08-23 18:12:15 -07:00
parent 1c084b55f9
commit 82f1f412eb
10 changed files with 141 additions and 185 deletions
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85
src/PlatformLayer/Batcher.bf
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@ -1,11 +1,88 @@
using System.Collections;
namespace Strawberry
{
public abstract class Batcher
public class Batcher
{
public abstract void Draw();
private List<Vertex> vertices = new .() ~ delete _;
private List<uint32> indices = new .() ~ delete _;
protected abstract void PushQuad(Vertex a, Vertex b, Vertex c, Vertex d);
protected abstract void PushTri(Vertex a, Vertex b, Vertex c);
private uint32 vaoID;
private uint32 vertexBufferID;
private uint32 indexBufferID;
public this()
{
GL.glGenVertexArrays(1, &vaoID);
GL.glBindVertexArray(vaoID);
GL.glGenBuffers(1, &vertexBufferID);
GL.glGenBuffers(1, &indexBufferID);
GL.glBindVertexArray(0);
}
public ~this()
{
GL.glDeleteBuffers(1, &vertexBufferID);
GL.glDeleteBuffers(1, &indexBufferID);
GL.glDeleteVertexArrays(1, &vaoID);
}
public void Draw()
{
GL.glDisable(GL.GL_CULL_FACE);
GL.glBindVertexArray(vaoID);
GL.glBindBuffer(GL.GL_ARRAY_BUFFER, vertexBufferID);
GL.glEnableVertexAttribArray(0);
GL.glVertexAttribPointer(0, 2, GL.GL_FLOAT, GL.GL_FALSE, sizeof(Vertex), (void*)0);
GL.glEnableVertexAttribArray(1);
GL.glVertexAttribPointer(1, 2, GL.GL_FLOAT, GL.GL_FALSE, sizeof(Vertex), (void*)8);
GL.glEnableVertexAttribArray(2);
GL.glVertexAttribPointer(2, 4, GL.GL_UNSIGNED_BYTE, GL.GL_TRUE, sizeof(Vertex), (void*)16);
GL.glEnableVertexAttribArray(3);
GL.glVertexAttribPointer(3, 3, GL.GL_UNSIGNED_BYTE, GL.GL_TRUE, sizeof(Vertex), (void*)20);
GL.glBufferData(GL.GL_ARRAY_BUFFER, vertices.Count * sizeof(Vertex), vertices.Ptr, GL.GL_DYNAMIC_DRAW);
GL.glBindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, indexBufferID);
GL.glBufferData(GL.GL_ELEMENT_ARRAY_BUFFER, indices.Count * sizeof(uint32), indices.Ptr, GL.GL_DYNAMIC_DRAW);
GL.glDrawElements(GL.GL_TRIANGLES, indices.Count, GL.GL_UNSIGNED_INT, (void*)0);
GL.glBindVertexArray(0);
vertices.Clear();
indices.Clear();
}
protected void PushQuad(Vertex a, Vertex b, Vertex c, Vertex d)
{
uint32 count = (uint32)vertices.Count;
vertices.Add(a);
vertices.Add(b);
vertices.Add(c);
vertices.Add(d);
indices.Add(count + 0);
indices.Add(count + 1);
indices.Add(count + 2);
indices.Add(count + 0);
indices.Add(count + 2);
indices.Add(count + 3);
}
protected void PushTri(Vertex a, Vertex b, Vertex c)
{
uint32 count = (uint32)vertices.Count;
vertices.Add(a);
vertices.Add(b);
vertices.Add(c);
indices.Add(count + 0);
indices.Add(count + 1);
indices.Add(count + 2);
}
public void Rect(float x, float y, float w, float h, Color color)
{