diff options
Diffstat (limited to 'src/main/java/makamys/neodymium/renderer/compat/RenderUtilShaders.java')
| -rw-r--r-- | src/main/java/makamys/neodymium/renderer/compat/RenderUtilShaders.java | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/main/java/makamys/neodymium/renderer/compat/RenderUtilShaders.java b/src/main/java/makamys/neodymium/renderer/compat/RenderUtilShaders.java new file mode 100644 index 0000000..b621e2c --- /dev/null +++ b/src/main/java/makamys/neodymium/renderer/compat/RenderUtilShaders.java @@ -0,0 +1,126 @@ +package makamys.neodymium.renderer.compat; + +import lombok.AccessLevel; +import lombok.NoArgsConstructor; +import makamys.neodymium.renderer.ChunkMesh; +import makamys.neodymium.renderer.MeshQuad; +import makamys.neodymium.renderer.attribs.AttributeSet; +import makamys.neodymium.util.BufferWriter; +import org.lwjgl.opengl.GL11; + +import static makamys.neodymium.renderer.MeshQuad.DEFAULT_BRIGHTNESS; +import static makamys.neodymium.renderer.MeshQuad.DEFAULT_COLOR; +import static org.lwjgl.opengl.GL11.GL_FLOAT; +import static org.lwjgl.opengl.GL11.GL_SHORT; +import static org.lwjgl.opengl.GL11.GL_UNSIGNED_BYTE; +import static org.lwjgl.opengl.GL11.GL_UNSIGNED_INT; + +@NoArgsConstructor(access = AccessLevel.PRIVATE) +public class RenderUtilShaders implements RenderUtil { + public static final RenderUtilShaders INSTANCE = new RenderUtilShaders(); + + @Override + public void readMeshQuad(MeshQuad meshQuad, int[] rawBuffer, int tessellatorVertexSize, int offset, float offsetX, float offsetY, float offsetZ, int drawMode, ChunkMesh.Flags flags) { + int vertices = drawMode == GL11.GL_TRIANGLES ? 3 : 4; + for (int vi = 0; vi < vertices; vi++) { + int i = offset + vi * tessellatorVertexSize; + + meshQuad.xs[vi] = Float.intBitsToFloat(rawBuffer[i]) + offsetX; + meshQuad.ys[vi] = Float.intBitsToFloat(rawBuffer[i + 1]) + offsetY; + meshQuad.zs[vi] = Float.intBitsToFloat(rawBuffer[i + 2]) + offsetZ; + + meshQuad.us[vi] = Float.intBitsToFloat(rawBuffer[i + 3]); + meshQuad.vs[vi] = Float.intBitsToFloat(rawBuffer[i + 4]); + + meshQuad.cs[vi] = flags.hasColor ? rawBuffer[i + 5] : DEFAULT_COLOR; + + meshQuad.bs[vi] = flags.hasBrightness ? rawBuffer[i + 6] : DEFAULT_BRIGHTNESS; + meshQuad.e1[vi] = rawBuffer[i + 7]; + meshQuad.e2[vi] = rawBuffer[i + 8]; + meshQuad.xn[vi] = Float.intBitsToFloat(rawBuffer[i + 9]); + meshQuad.yn[vi] = Float.intBitsToFloat(rawBuffer[i + 10]); + meshQuad.zn[vi] = Float.intBitsToFloat(rawBuffer[i + 11]); + meshQuad.xt[vi] = Float.intBitsToFloat(rawBuffer[i + 12]); + meshQuad.yt[vi] = Float.intBitsToFloat(rawBuffer[i + 13]); + meshQuad.zt[vi] = Float.intBitsToFloat(rawBuffer[i + 14]); + meshQuad.wt[vi] = Float.intBitsToFloat(rawBuffer[i + 15]); + meshQuad.um[vi] = Float.intBitsToFloat(rawBuffer[i + 16]); + meshQuad.vm[vi] = Float.intBitsToFloat(rawBuffer[i + 17]); + } + + if (vertices == 3) { + // Quadrangulate! + meshQuad.xs[3] = meshQuad.xs[2]; + meshQuad.ys[3] = meshQuad.ys[2]; + meshQuad.zs[3] = meshQuad.zs[2]; + + meshQuad.us[3] = meshQuad.us[2]; + meshQuad.vs[3] = meshQuad.vs[2]; + + meshQuad.cs[3] = meshQuad.cs[2]; + + meshQuad.bs[3] = meshQuad.bs[2]; + + meshQuad.e1[3] = meshQuad.e1[2]; + meshQuad.e2[3] = meshQuad.e2[2]; + + meshQuad.xn[3] = meshQuad.xn[2]; + meshQuad.yn[3] = meshQuad.yn[2]; + meshQuad.zn[3] = meshQuad.zn[2]; + + meshQuad.xt[3] = meshQuad.xt[2]; + meshQuad.yt[3] = meshQuad.yt[2]; + meshQuad.zt[3] = meshQuad.zt[2]; + meshQuad.wt[3] = meshQuad.wt[2]; + + meshQuad.um[3] = meshQuad.um[2]; + meshQuad.vm[3] = meshQuad.vm[2]; + } + } + + @Override + public void writeMeshQuadToBuffer(MeshQuad meshQuad, BufferWriter out, int expectedStride) { + for(int vi = 0; vi < 4; vi++) { + out.writeFloat(meshQuad.xs[vi]); + out.writeFloat(meshQuad.ys[vi]); + out.writeFloat(meshQuad.zs[vi]); + + out.writeFloat(meshQuad.us[vi]); + out.writeFloat(meshQuad.vs[vi]); + + out.writeInt(meshQuad.cs[vi]); + + out.writeInt(meshQuad.bs[vi]); + + out.writeInt(meshQuad.e1[vi]); + out.writeInt(meshQuad.e2[vi]); + + out.writeFloat(meshQuad.xn[vi]); + out.writeFloat(meshQuad.yn[vi]); + out.writeFloat(meshQuad.zn[vi]); + + out.writeFloat(meshQuad.xt[vi]); + out.writeFloat(meshQuad.yt[vi]); + out.writeFloat(meshQuad.zt[vi]); + out.writeFloat(meshQuad.wt[vi]); + + out.writeFloat(meshQuad.um[vi]); + out.writeFloat(meshQuad.vm[vi]); + + assert out.position() % expectedStride == 0; + } + } + + @Override + public void initVertexAttributes(AttributeSet attributes) { + attributes.addAttribute("POS", 3, 4, GL_FLOAT); + attributes.addAttribute("TEXTURE", 2, 4, GL_FLOAT); + attributes.addAttribute("COLOR", 4, 1, GL_UNSIGNED_BYTE); + attributes.addAttribute("BRIGHTNESS", 2, 2, GL_SHORT); + attributes.addAttribute("ENTITY_DATA_1", 1, 4, GL_UNSIGNED_INT); + attributes.addAttribute("ENTITY_DATA_2", 1, 4, GL_UNSIGNED_INT); + attributes.addAttribute("NORMAL", 3, 4, GL_FLOAT); + attributes.addAttribute("TANGENT", 4, 4, GL_FLOAT); + attributes.addAttribute("MIDTEXTURE", 2, 4, GL_FLOAT); + } +} |