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Add support for OpenGL 1.5 and 3.0

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This commit is contained in:
James Seibel
2021-10-23 12:04:16 -05:00
parent d5466e0fda
commit 1405b7a433
11 changed files with 304 additions and 128 deletions
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src/main/java/com/seibel/lod/proxy/GlProxy.java
+45 -12
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@@ -24,7 +24,9 @@ import org.lwjgl.opengl.GL;
import org.lwjgl.opengl.GLCapabilities;
import com.mojang.blaze3d.systems.RenderSystem;
import com.seibel.lod.ModInfo;
import com.seibel.lod.enums.GlProxyContext;
import com.seibel.lod.wrappers.MinecraftWrapper;
/**
* A singleton that holds references to different openGL contexts
@@ -38,12 +40,14 @@ import com.seibel.lod.enums.GlProxyContext;
* https://gamedev.stackexchange.com/questions/91995/edit-vbo-data-or-create-a-new-one <br><br>
*
* @author James Seibel
* @version 10-2-2021
* @version 10-23-2021
*/
public class GlProxy
{
private static GlProxy instance = null;
private static MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
/** Minecraft's GLFW window */
public final long minecraftGlContext;
/** Minecraft's GL context */
@@ -63,16 +67,22 @@ public class GlProxy
/** Does this computer's GPU support fancy fog? */
public final boolean fancyFogAvailable;
/** Requires OpenGL 4.5, and offers the best buffer uploading */
public final boolean bufferStorageSupported;
/** Requires OpenGL 3.0 */
public final boolean mapBufferRangeSupported;
private GlProxy()
{
ClientProxy.LOGGER.error("Creating " + GlProxy.class.getSimpleName() + "... If this is the last message you see in the log there must have been a OpenGL error.");
// getting Minecraft's context has to be done on the render thread,
// where the GL context is
if (!RenderSystem.isOnRenderThread())
throw new IllegalStateException(GlProxy.class.getSimpleName() + " was created outside the render thread!");
//============================//
@@ -101,6 +111,30 @@ public class GlProxy
//==============================//
// determine the OpenGL version //
//==============================//
bufferStorageSupported = minecraftGlCapabilities.OpenGL45;
mapBufferRangeSupported = minecraftGlCapabilities.OpenGL30;
if (!minecraftGlCapabilities.OpenGL15)
{
String errorMessage = ModInfo.READABLE_NAME + " was initializing " + GlProxy.class.getSimpleName() + " and discoverd this GPU doesn't support OpenGL 1.5 or greater.";
mc.crashMinecraft(errorMessage + " Sorry I couldn't tell you sooner :(", new UnsupportedOperationException("This GPU doesn't support OpenGL 1.5 or greater."));
}
if (!bufferStorageSupported)
{
String fallBackVersion = mapBufferRangeSupported ? "3.0" : "1.5";
ClientProxy.LOGGER.error("This GPU doesn't support OpenGL 4.5, falling back to OpenGL " + fallBackVersion + ". This may cause stuttering and reduced performance.");
}
//==================================//
// get any GPU related capabilities //
//==================================//
@@ -110,6 +144,12 @@ public class GlProxy
if (!fancyFogAvailable)
ClientProxy.LOGGER.info("This GPU does not support GL_NV_fog_distance. This means that the fancy fog option will not be available.");
// GlProxy creation success
ClientProxy.LOGGER.error(GlProxy.class.getSimpleName() + " creation successful. OpenGL smiles upon you this day.");
}
@@ -188,15 +228,8 @@ public class GlProxy
public static GlProxy getInstance()
{
try
{
if (instance == null)
instance = new GlProxy();
}
catch (Exception e)
{
e.printStackTrace();
}
if (instance == null)
instance = new GlProxy();
return instance;
}