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improve compatibility layer.

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This commit is contained in:
JozsefA 2021-02-20 15:22:07 -08:00
parent e84c6d3abe
commit b5f9cbc4b3
9 changed files with 289 additions and 51 deletions
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47
src/main/java/com/simibubi/create/foundation/render/backend/Backend.java
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@ -11,6 +11,7 @@ import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Predicate;
import com.simibubi.create.foundation.render.backend.gl.versioned.GlFunctions;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.lwjgl.opengl.GL;
@ -44,16 +45,12 @@ public class Backend {
private static boolean enabled;
public static GLCapabilities capabilities;
private static MapBuffer mapBuffer;
public static GlFunctions functions;
public Backend() {
throw new IllegalStateException();
}
public static void mapBuffer(int target, int offset, int length, Consumer<ByteBuffer> upload) {
mapBuffer.mapBuffer(target, offset, length, upload);
}
/**
* Register a shader program. TODO: replace with forge registry?
*/
@ -71,47 +68,21 @@ public class Backend {
return (P) programs.get(spec);
}
/**
* Get the most compatible version of a specific OpenGL feature by iterating over enum constants in order.
*
* @param clazz The class of the versioning enum.
* @param <V> The type of the versioning enum.
* @return The first defined enum variant to return true.
*/
public static <V extends Enum<V> & GlVersioned> V getLatest(Class<V> clazz) {
return getLatest(clazz, capabilities);
}
/**
* Get the most compatible version of a specific OpenGL feature by iterating over enum constants in order.
*
* @param clazz The class of the versioning enum.
* @param caps The current system's supported features.
* @param <V> The type of the versioning enum.
* @return The first defined enum variant to return true.
*/
public static <V extends Enum<V> & GlVersioned> V getLatest(Class<V> clazz, GLCapabilities caps) {
V[] constants = clazz.getEnumConstants();
V last = constants[constants.length - 1];
if (!last.supported(caps)) {
throw new IllegalStateException("");
}
return Arrays.stream(constants).filter(it -> it.supported(caps)).findFirst().orElse(last);
public static boolean available() {
return canUseVBOs();
}
public static boolean canUseInstancing() {
return enabled && gl33();
return enabled &&
functions.vertexArrayObjectsSupported() &&
functions.drawInstancedSupported() &&
functions.instancedArraysSupported();
}
public static boolean canUseVBOs() {
return enabled && gl20();
}
public static boolean available() {
return enabled && gl20();
}
public static boolean gl33() {
return capabilities.OpenGL33;
}
@ -136,7 +107,7 @@ public class Backend {
private static void onResourceManagerReload(IResourceManager manager, Predicate<IResourceType> predicate) {
if (predicate.test(VanillaResourceType.SHADERS)) {
capabilities = GL.createCapabilities();
mapBuffer = getLatest(MapBuffer.class);
functions = new GlFunctions(capabilities);
OptifineHandler.refresh();
refresh();

8
src/main/java/com/simibubi/create/foundation/render/backend/gl/GlBuffer.java
View file

@ -3,9 +3,9 @@ package com.simibubi.create.foundation.render.backend.gl;
import java.nio.ByteBuffer;
import java.util.function.Consumer;
import org.lwjgl.opengl.GL20;
import com.simibubi.create.foundation.render.backend.Backend;
import com.simibubi.create.foundation.render.backend.gl.versioned.GlFunctions;
import org.lwjgl.opengl.GL20;
public class GlBuffer extends GlObject {
@ -35,11 +35,11 @@ public class GlBuffer extends GlObject {
}
public void map(int length, Consumer<ByteBuffer> upload) {
Backend.mapBuffer(bufferType, 0, length, upload);
Backend.functions.mapBuffer(bufferType, 0, length, upload);
}
public void map(int offset, int length, Consumer<ByteBuffer> upload) {
Backend.mapBuffer(bufferType, offset, length, upload);
Backend.functions.mapBuffer(bufferType, offset, length, upload);
}
protected void deleteInternal(int handle) {

9
src/main/java/com/simibubi/create/foundation/render/backend/gl/GlVertexArray.java
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@ -2,19 +2,20 @@ package com.simibubi.create.foundation.render.backend.gl;
import java.util.function.Consumer;
import com.simibubi.create.foundation.render.backend.Backend;
import org.lwjgl.opengl.GL30;
public class GlVertexArray extends GlObject {
public GlVertexArray() {
setHandle(GL30.glGenVertexArrays());
setHandle(Backend.functions.genVertexArrays());
}
public void bind() {
GL30.glBindVertexArray(handle());
Backend.functions.bindVertexArray(handle());
}
public void unbind() {
GL30.glBindVertexArray(0);
Backend.functions.bindVertexArray(0);
}
public void with(Consumer<GlVertexArray> action) {
@ -24,6 +25,6 @@ public class GlVertexArray extends GlObject {
}
protected void deleteInternal(int handle) {
GL30.glDeleteVertexArrays(handle);
Backend.functions.deleteVertexArrays(handle);
}
}

54
src/main/java/com/simibubi/create/foundation/render/backend/gl/versioned/DrawInstanced.java Normal file
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@ -0,0 +1,54 @@
package com.simibubi.create.foundation.render.backend.gl.versioned;
import org.lwjgl.opengl.*;
public enum DrawInstanced implements GlVersioned {
GL31_DRAW_INSTANCED {
@Override
public boolean supported(GLCapabilities caps) {
return caps.OpenGL31;
}
@Override
public void drawArraysInstanced(int mode, int first, int count, int primcount) {
GL31.glDrawArraysInstanced(mode, first, count, primcount);
}
},
ARB_DRAW_INSTANCED {
@Override
public boolean supported(GLCapabilities caps) {
return caps.GL_ARB_draw_instanced;
}
@Override
public void drawArraysInstanced(int mode, int first, int count, int primcount) {
ARBDrawInstanced.glDrawArraysInstancedARB(mode, first, count, primcount);
}
},
EXT_DRAW_INSTANCED {
@Override
public boolean supported(GLCapabilities caps) {
return caps.GL_EXT_draw_instanced;
}
@Override
public void drawArraysInstanced(int mode, int first, int count, int primcount) {
EXTDrawInstanced.glDrawArraysInstancedEXT(mode, first, count, primcount);
}
},
UNSUPPORTED {
@Override
public boolean supported(GLCapabilities caps) {
return true;
}
@Override
public void drawArraysInstanced(int mode, int first, int count, int primcount) {
throw new UnsupportedOperationException();
}
}
;
public abstract void drawArraysInstanced(int mode, int first, int count, int primcount);
}

85
src/main/java/com/simibubi/create/foundation/render/backend/gl/versioned/GlFunctions.java Normal file
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@ -0,0 +1,85 @@
package com.simibubi.create.foundation.render.backend.gl.versioned;
import org.lwjgl.opengl.GLCapabilities;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.function.Consumer;
/**
* An instance of this class stores information
* about what OpenGL features are available.
*
* Each field stores an enum variant that provides access to the
* most appropriate version of a feature for the current system.
*/
public class GlFunctions {
public final MapBuffer mapBuffer;
public final VertexArrayObject vertexArrayObject;
public final InstancedArrays instancedArrays;
public final DrawInstanced drawInstanced;
public GlFunctions(GLCapabilities caps) {
mapBuffer = getLatest(MapBuffer.class, caps);
vertexArrayObject = getLatest(VertexArrayObject.class, caps);
instancedArrays = getLatest(InstancedArrays.class, caps);
drawInstanced = getLatest(DrawInstanced.class, caps);
}
public void mapBuffer(int target, int offset, int length, Consumer<ByteBuffer> upload) {
mapBuffer.mapBuffer(target, offset, length, upload);
}
public void vertexAttribDivisor(int index, int divisor) {
instancedArrays.vertexAttribDivisor(index, divisor);
}
public void drawArraysInstanced(int mode, int first, int count, int primcount) {
drawInstanced.drawArraysInstanced(mode, first, count, primcount);
}
public int genVertexArrays() {
return vertexArrayObject.genVertexArrays();
}
public void deleteVertexArrays(int array) {
vertexArrayObject.deleteVertexArrays(array);
}
public void bindVertexArray(int array) {
vertexArrayObject.bindVertexArray(array);
}
public boolean vertexArrayObjectsSupported() {
return vertexArrayObject != VertexArrayObject.UNSUPPORTED;
}
public boolean instancedArraysSupported() {
return instancedArrays != InstancedArrays.UNSUPPORTED;
}
public boolean drawInstancedSupported() {
return drawInstanced != DrawInstanced.UNSUPPORTED;
}
/**
* Get the most compatible version of a specific OpenGL feature by iterating over enum constants in order.
*
* @param clazz The class of the versioning enum.
* @param caps The current system's supported features.
* @param <V> The type of the versioning enum.
* @return The first defined enum variant to return true.
*/
public static <V extends Enum<V> & GlVersioned> V getLatest(Class<V> clazz, GLCapabilities caps) {
V[] constants = clazz.getEnumConstants();
V last = constants[constants.length - 1];
if (!last.supported(caps)) {
throw new IllegalStateException("");
}
return Arrays.stream(constants).filter(it -> it.supported(caps)).findFirst().get();
}
}

10
src/main/java/com/simibubi/create/foundation/render/backend/gl/versioned/GlVersioned.java
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@ -2,7 +2,15 @@ package com.simibubi.create.foundation.render.backend.gl.versioned;
import org.lwjgl.opengl.GLCapabilities;
/**
* This interface should be implemented by enums such that the
* last defined variant <em>always</em> returns <code>true</code>.
*/
public interface GlVersioned {
/**
* Queries whether this variant is supported by the current system.
* @param caps The {@link GLCapabilities} reported by the current system.
* @return <code>true</code> if this variant is supported, or if this is the last defined variant.
*/
boolean supported(GLCapabilities caps);
}

43
src/main/java/com/simibubi/create/foundation/render/backend/gl/versioned/InstancedArrays.java Normal file
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@ -0,0 +1,43 @@
package com.simibubi.create.foundation.render.backend.gl.versioned;
import org.lwjgl.opengl.*;
public enum InstancedArrays implements GlVersioned {
GL33_INSTANCED_ARRAYS {
@Override
public boolean supported(GLCapabilities caps) {
return caps.OpenGL33;
}
@Override
public void vertexAttribDivisor(int index, int divisor) {
GL33.glVertexAttribDivisor(index, divisor);
}
},
ARB_INSTANCED_ARRAYS {
@Override
public boolean supported(GLCapabilities caps) {
return caps.GL_ARB_instanced_arrays;
}
@Override
public void vertexAttribDivisor(int index, int divisor) {
ARBInstancedArrays.glVertexAttribDivisorARB(index, divisor);
}
},
UNSUPPORTED {
@Override
public boolean supported(GLCapabilities caps) {
return true;
}
@Override
public void vertexAttribDivisor(int index, int divisor) {
throw new UnsupportedOperationException();
}
}
;
public abstract void vertexAttribDivisor(int index, int divisor);
}

77
src/main/java/com/simibubi/create/foundation/render/backend/gl/versioned/VertexArrayObject.java Normal file
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@ -0,0 +1,77 @@
package com.simibubi.create.foundation.render.backend.gl.versioned;
import org.lwjgl.opengl.*;
public enum VertexArrayObject implements GlVersioned {
GL30_VAO {
@Override
public boolean supported(GLCapabilities caps) {
return caps.OpenGL30;
}
@Override
public int genVertexArrays() {
return GL30.glGenVertexArrays();
}
@Override
public void bindVertexArray(int array) {
GL30.glBindVertexArray(array);
}
@Override
public void deleteVertexArrays(int array) {
GL30.glDeleteVertexArrays(array);
}
},
ARB_VAO {
@Override
public boolean supported(GLCapabilities caps) {
return caps.GL_ARB_vertex_array_object;
}
@Override
public int genVertexArrays() {
return ARBVertexArrayObject.glGenVertexArrays();
}
@Override
public void bindVertexArray(int array) {
ARBVertexArrayObject.glBindVertexArray(array);
}
@Override
public void deleteVertexArrays(int array) {
ARBVertexArrayObject.glDeleteVertexArrays(array);
}
},
UNSUPPORTED {
@Override
public boolean supported(GLCapabilities caps) {
return true;
}
@Override
public int genVertexArrays() {
throw new UnsupportedOperationException();
}
@Override
public void bindVertexArray(int array) {
throw new UnsupportedOperationException();
}
@Override
public void deleteVertexArrays(int array) {
throw new UnsupportedOperationException();
}
}
;
public abstract int genVertexArrays();
public abstract void bindVertexArray(int array);
public abstract void deleteVertexArrays(int array);
}

7
src/main/java/com/simibubi/create/foundation/render/backend/instancing/InstancedModel.java
View file

@ -5,11 +5,10 @@ import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.function.Consumer;
import com.simibubi.create.foundation.render.backend.Backend;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL15;
import org.lwjgl.opengl.GL20;
import org.lwjgl.opengl.GL31;
import org.lwjgl.opengl.GL33;
import com.simibubi.create.foundation.render.RenderMath;
import com.simibubi.create.foundation.render.backend.BufferedModel;
@ -116,7 +115,7 @@ public abstract class InstancedModel<D extends InstanceData> extends BufferedMod
protected void doRender() {
vao.with(vao -> {
renderSetup();
GL31.glDrawArraysInstanced(GL11.GL_QUADS, 0, vertexCount, glInstanceCount);
Backend.functions.drawArraysInstanced(GL11.GL_QUADS, 0, vertexCount, glInstanceCount);
});
}
@ -163,7 +162,7 @@ public abstract class InstancedModel<D extends InstanceData> extends BufferedMod
instanceFormat.vertexAttribPointers(staticAttributes);
for (int i = 0; i < instanceFormat.getShaderAttributeCount(); i++) {
GL33.glVertexAttribDivisor(i + staticAttributes, 1);
Backend.functions.vertexAttribDivisor(i + staticAttributes, 1);
}
});