OpenGlHelper.java | searchcode

/src/main/java/net/minecraft/client/renderer/OpenGlHelper.java

https://gitlab.com/finesse/era-minecraft
Java | 702 lines | 588 code | 88 blank | 26 comment | 115 complexity | 4a40eb816f8c1fac7b129c2fdfb2ff52 MD5 | raw file

package net.minecraft.client.renderer;

import net.minecraft.client.Minecraft;
import net.minecraft.src.Config;
import org.lwjgl.opengl.*;

import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;

public class OpenGlHelper {
    public static boolean nvidia;
    public static int GL_FRAMEBUFFER;
    public static int GL_RENDERBUFFER;
    public static int GL_COLOR_ATTACHMENT0;
    public static int GL_DEPTH_ATTACHMENT;
    public static int GL_FRAMEBUFFER_COMPLETE;
    public static int GL_FB_INCOMPLETE_ATTACHMENT;
    public static int GL_FB_INCOMPLETE_MISS_ATTACH;
    public static int GL_FB_INCOMPLETE_DRAW_BUFFER;
    public static int GL_FB_INCOMPLETE_READ_BUFFER;
    private static int framebufferType;
    public static boolean framebufferSupported;
    private static boolean shadersAvailable;
    private static boolean arbShaders;
    public static int GL_LINK_STATUS;
    public static int GL_COMPILE_STATUS;
    public static int GL_VERTEX_SHADER;
    public static int GL_FRAGMENT_SHADER;
    private static boolean arbMultitexture;

    /**
     * An OpenGL constant corresponding to GL_TEXTURE0, used when setting data pertaining to auxiliary OpenGL texture
     * units.
     */
    public static int defaultTexUnit;

    /**
     * An OpenGL constant corresponding to GL_TEXTURE1, used when setting data pertaining to auxiliary OpenGL texture
     * units.
     */
    public static int lightmapTexUnit;
    public static int GL_TEXTURE2;
    private static boolean arbTextureEnvCombine;
    public static int GL_COMBINE;
    public static int GL_INTERPOLATE;
    public static int GL_PRIMARY_COLOR;
    public static int GL_CONSTANT;
    public static int GL_PREVIOUS;
    public static int GL_COMBINE_RGB;
    public static int GL_SOURCE0_RGB;
    public static int GL_SOURCE1_RGB;
    public static int GL_SOURCE2_RGB;
    public static int GL_OPERAND0_RGB;
    public static int GL_OPERAND1_RGB;
    public static int GL_OPERAND2_RGB;
    public static int GL_COMBINE_ALPHA;
    public static int GL_SOURCE0_ALPHA;
    public static int GL_SOURCE1_ALPHA;
    public static int GL_SOURCE2_ALPHA;
    public static int GL_OPERAND0_ALPHA;
    public static int GL_OPERAND1_ALPHA;
    public static int GL_OPERAND2_ALPHA;
    private static boolean openGL14;
    public static boolean extBlendFuncSeparate;
    public static boolean openGL21;
    public static boolean shadersSupported;
    private static String logText = "";
    public static boolean vboSupported;
    private static boolean arbVbo;
    public static int GL_ARRAY_BUFFER;
    public static int GL_STATIC_DRAW;
    public static float lastBrightnessX = 0.0F;
    public static float lastBrightnessY = 0.0F;

    /**
     * Initializes the texture constants to be used when rendering lightmap values
     */
    public static void initializeTextures() {
        Config.initDisplay();
        ContextCapabilities var0 = GLContext.getCapabilities();
        arbMultitexture = var0.GL_ARB_multitexture && !var0.OpenGL13;
        arbTextureEnvCombine = var0.GL_ARB_texture_env_combine && !var0.OpenGL13;

        if (arbMultitexture) {
            logText = logText + "Using ARB_multitexture.\n";
            defaultTexUnit = 33984;
            lightmapTexUnit = 33985;
            GL_TEXTURE2 = 33986;
        } else {
            logText = logText + "Using GL 1.3 multitexturing.\n";
            defaultTexUnit = 33984;
            lightmapTexUnit = 33985;
            GL_TEXTURE2 = 33986;
        }

        if (arbTextureEnvCombine) {
            logText = logText + "Using ARB_texture_env_combine.\n";
            GL_COMBINE = 34160;
            GL_INTERPOLATE = 34165;
            GL_PRIMARY_COLOR = 34167;
            GL_CONSTANT = 34166;
            GL_PREVIOUS = 34168;
            GL_COMBINE_RGB = 34161;
            GL_SOURCE0_RGB = 34176;
            GL_SOURCE1_RGB = 34177;
            GL_SOURCE2_RGB = 34178;
            GL_OPERAND0_RGB = 34192;
            GL_OPERAND1_RGB = 34193;
            GL_OPERAND2_RGB = 34194;
            GL_COMBINE_ALPHA = 34162;
            GL_SOURCE0_ALPHA = 34184;
            GL_SOURCE1_ALPHA = 34185;
            GL_SOURCE2_ALPHA = 34186;
            GL_OPERAND0_ALPHA = 34200;
            GL_OPERAND1_ALPHA = 34201;
            GL_OPERAND2_ALPHA = 34202;
        } else {
            logText = logText + "Using GL 1.3 texture combiners.\n";
            GL_COMBINE = 34160;
            GL_INTERPOLATE = 34165;
            GL_PRIMARY_COLOR = 34167;
            GL_CONSTANT = 34166;
            GL_PREVIOUS = 34168;
            GL_COMBINE_RGB = 34161;
            GL_SOURCE0_RGB = 34176;
            GL_SOURCE1_RGB = 34177;
            GL_SOURCE2_RGB = 34178;
            GL_OPERAND0_RGB = 34192;
            GL_OPERAND1_RGB = 34193;
            GL_OPERAND2_RGB = 34194;
            GL_COMBINE_ALPHA = 34162;
            GL_SOURCE0_ALPHA = 34184;
            GL_SOURCE1_ALPHA = 34185;
            GL_SOURCE2_ALPHA = 34186;
            GL_OPERAND0_ALPHA = 34200;
            GL_OPERAND1_ALPHA = 34201;
            GL_OPERAND2_ALPHA = 34202;
        }

        extBlendFuncSeparate = var0.GL_EXT_blend_func_separate && !var0.OpenGL14;
        openGL14 = var0.OpenGL14 || var0.GL_EXT_blend_func_separate;
        framebufferSupported = openGL14 && (var0.GL_ARB_framebuffer_object || var0.GL_EXT_framebuffer_object || var0.OpenGL30);

        if (framebufferSupported) {
            logText = logText + "Using framebuffer objects because ";

            if (var0.OpenGL30) {
                logText = logText + "OpenGL 3.0 is supported and separate blending is supported.\n";
                framebufferType = 0;
                GL_FRAMEBUFFER = 36160;
                GL_RENDERBUFFER = 36161;
                GL_COLOR_ATTACHMENT0 = 36064;
                GL_DEPTH_ATTACHMENT = 36096;
                GL_FRAMEBUFFER_COMPLETE = 36053;
                GL_FB_INCOMPLETE_ATTACHMENT = 36054;
                GL_FB_INCOMPLETE_MISS_ATTACH = 36055;
                GL_FB_INCOMPLETE_DRAW_BUFFER = 36059;
                GL_FB_INCOMPLETE_READ_BUFFER = 36060;
            } else if (var0.GL_ARB_framebuffer_object) {
                logText = logText + "ARB_framebuffer_object is supported and separate blending is supported.\n";
                framebufferType = 1;
                GL_FRAMEBUFFER = 36160;
                GL_RENDERBUFFER = 36161;
                GL_COLOR_ATTACHMENT0 = 36064;
                GL_DEPTH_ATTACHMENT = 36096;
                GL_FRAMEBUFFER_COMPLETE = 36053;
                GL_FB_INCOMPLETE_MISS_ATTACH = 36055;
                GL_FB_INCOMPLETE_ATTACHMENT = 36054;
                GL_FB_INCOMPLETE_DRAW_BUFFER = 36059;
                GL_FB_INCOMPLETE_READ_BUFFER = 36060;
            } else if (var0.GL_EXT_framebuffer_object) {
                logText = logText + "EXT_framebuffer_object is supported.\n";
                framebufferType = 2;
                GL_FRAMEBUFFER = 36160;
                GL_RENDERBUFFER = 36161;
                GL_COLOR_ATTACHMENT0 = 36064;
                GL_DEPTH_ATTACHMENT = 36096;
                GL_FRAMEBUFFER_COMPLETE = 36053;
                GL_FB_INCOMPLETE_MISS_ATTACH = 36055;
                GL_FB_INCOMPLETE_ATTACHMENT = 36054;
                GL_FB_INCOMPLETE_DRAW_BUFFER = 36059;
                GL_FB_INCOMPLETE_READ_BUFFER = 36060;
            }
        } else {
            logText = logText + "Not using framebuffer objects because ";
            logText = logText + "OpenGL 1.4 is " + (var0.OpenGL14 ? "" : "not ") + "supported, ";
            logText = logText + "EXT_blend_func_separate is " + (var0.GL_EXT_blend_func_separate ? "" : "not ") + "supported, ";
            logText = logText + "OpenGL 3.0 is " + (var0.OpenGL30 ? "" : "not ") + "supported, ";
            logText = logText + "ARB_framebuffer_object is " + (var0.GL_ARB_framebuffer_object ? "" : "not ") + "supported, and ";
            logText = logText + "EXT_framebuffer_object is " + (var0.GL_EXT_framebuffer_object ? "" : "not ") + "supported.\n";
        }

        openGL21 = var0.OpenGL21;
        shadersAvailable = openGL21 || var0.GL_ARB_vertex_shader && var0.GL_ARB_fragment_shader && var0.GL_ARB_shader_objects;
        logText = logText + "Shaders are " + (shadersAvailable ? "" : "not ") + "available because ";

        if (shadersAvailable) {
            if (var0.OpenGL21) {
                logText = logText + "OpenGL 2.1 is supported.\n";
                arbShaders = false;
                GL_LINK_STATUS = 35714;
                GL_COMPILE_STATUS = 35713;
                GL_VERTEX_SHADER = 35633;
                GL_FRAGMENT_SHADER = 35632;
            } else {
                logText = logText + "ARB_shader_objects, ARB_vertex_shader, and ARB_fragment_shader are supported.\n";
                arbShaders = true;
                GL_LINK_STATUS = 35714;
                GL_COMPILE_STATUS = 35713;
                GL_VERTEX_SHADER = 35633;
                GL_FRAGMENT_SHADER = 35632;
            }
        } else {
            logText = logText + "OpenGL 2.1 is " + (var0.OpenGL21 ? "" : "not ") + "supported, ";
            logText = logText + "ARB_shader_objects is " + (var0.GL_ARB_shader_objects ? "" : "not ") + "supported, ";
            logText = logText + "ARB_vertex_shader is " + (var0.GL_ARB_vertex_shader ? "" : "not ") + "supported, and ";
            logText = logText + "ARB_fragment_shader is " + (var0.GL_ARB_fragment_shader ? "" : "not ") + "supported.\n";
        }

        shadersSupported = framebufferSupported && shadersAvailable;
        nvidia = GL11.glGetString(GL11.GL_VENDOR).toLowerCase().contains("nvidia");
        arbVbo = !var0.OpenGL15 && var0.GL_ARB_vertex_buffer_object;
        vboSupported = var0.OpenGL15 || arbVbo;
        logText = logText + "VBOs are " + (vboSupported ? "" : "not ") + "available because ";

        if (vboSupported) {
            if (arbVbo) {
                logText = logText + "ARB_vertex_buffer_object is supported.\n";
                GL_STATIC_DRAW = 35044;
                GL_ARRAY_BUFFER = 34962;
            } else {
                logText = logText + "OpenGL 1.5 is supported.\n";
                GL_STATIC_DRAW = 35044;
                GL_ARRAY_BUFFER = 34962;
            }
        }
    }

    public static boolean areShadersSupported() {
        return shadersSupported;
    }

    public static String getLogText() {
        return logText;
    }

    public static int glGetProgrami(int program, int pname) {
        return arbShaders ? ARBShaderObjects.glGetObjectParameteriARB(program, pname) : GL20.glGetProgrami(program, pname);
    }

    public static void glAttachShader(int program, int shaderIn) {
        if (arbShaders) {
            ARBShaderObjects.glAttachObjectARB(program, shaderIn);
        } else {
            GL20.glAttachShader(program, shaderIn);
        }
    }

    public static void glDeleteShader(int p_153180_0_) {
        if (arbShaders) {
            ARBShaderObjects.glDeleteObjectARB(p_153180_0_);
        } else {
            GL20.glDeleteShader(p_153180_0_);
        }
    }

    /**
     * creates a shader with the given mode and returns the GL id. params: mode
     */
    public static int glCreateShader(int type) {
        return arbShaders ? ARBShaderObjects.glCreateShaderObjectARB(type) : GL20.glCreateShader(type);
    }

    public static void glShaderSource(int shaderIn, ByteBuffer string) {
        if (arbShaders) {
            ARBShaderObjects.glShaderSourceARB(shaderIn, string);
        } else {
            GL20.glShaderSource(shaderIn, string);
        }
    }

    public static void glCompileShader(int shaderIn) {
        if (arbShaders) {
            ARBShaderObjects.glCompileShaderARB(shaderIn);
        } else {
            GL20.glCompileShader(shaderIn);
        }
    }

    public static int glGetShaderi(int shaderIn, int pname) {
        return arbShaders ? ARBShaderObjects.glGetObjectParameteriARB(shaderIn, pname) : GL20.glGetShaderi(shaderIn, pname);
    }

    public static String glGetShaderInfoLog(int shaderIn, int maxLength) {
        return arbShaders ? ARBShaderObjects.glGetInfoLogARB(shaderIn, maxLength) : GL20.glGetShaderInfoLog(shaderIn, maxLength);
    }

    public static String glGetProgramInfoLog(int program, int maxLength) {
        return arbShaders ? ARBShaderObjects.glGetInfoLogARB(program, maxLength) : GL20.glGetProgramInfoLog(program, maxLength);
    }

    public static void glUseProgram(int program) {
        if (arbShaders) {
            ARBShaderObjects.glUseProgramObjectARB(program);
        } else {
            GL20.glUseProgram(program);
        }
    }

    public static int glCreateProgram() {
        return arbShaders ? ARBShaderObjects.glCreateProgramObjectARB() : GL20.glCreateProgram();
    }

    public static void glDeleteProgram(int program) {
        if (arbShaders) {
            ARBShaderObjects.glDeleteObjectARB(program);
        } else {
            GL20.glDeleteProgram(program);
        }
    }

    public static void glLinkProgram(int program) {
        if (arbShaders) {
            ARBShaderObjects.glLinkProgramARB(program);
        } else {
            GL20.glLinkProgram(program);
        }
    }

    public static int glGetUniformLocation(int programObj, CharSequence name) {
        return arbShaders ? ARBShaderObjects.glGetUniformLocationARB(programObj, name) : GL20.glGetUniformLocation(programObj, name);
    }

    public static void glUniform1(int location, IntBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform1ARB(location, values);
        } else {
            GL20.glUniform1(location, values);
        }
    }

    public static void glUniform1i(int location, int v0) {
        if (arbShaders) {
            ARBShaderObjects.glUniform1iARB(location, v0);
        } else {
            GL20.glUniform1i(location, v0);
        }
    }

    public static void glUniform1(int location, FloatBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform1ARB(location, values);
        } else {
            GL20.glUniform1(location, values);
        }
    }

    public static void glUniform2(int location, IntBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform2ARB(location, values);
        } else {
            GL20.glUniform2(location, values);
        }
    }

    public static void glUniform2(int location, FloatBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform2ARB(location, values);
        } else {
            GL20.glUniform2(location, values);
        }
    }

    public static void glUniform3(int location, IntBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform3ARB(location, values);
        } else {
            GL20.glUniform3(location, values);
        }
    }

    public static void glUniform3(int location, FloatBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform3ARB(location, values);
        } else {
            GL20.glUniform3(location, values);
        }
    }

    public static void glUniform4(int location, IntBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform4ARB(location, values);
        } else {
            GL20.glUniform4(location, values);
        }
    }

    public static void glUniform4(int location, FloatBuffer values) {
        if (arbShaders) {
            ARBShaderObjects.glUniform4ARB(location, values);
        } else {
            GL20.glUniform4(location, values);
        }
    }

    public static void glUniformMatrix2(int location, boolean transpose, FloatBuffer matrices) {
        if (arbShaders) {
            ARBShaderObjects.glUniformMatrix2ARB(location, transpose, matrices);
        } else {
            GL20.glUniformMatrix2(location, transpose, matrices);
        }
    }

    public static void glUniformMatrix3(int location, boolean transpose, FloatBuffer matrices) {
        if (arbShaders) {
            ARBShaderObjects.glUniformMatrix3ARB(location, transpose, matrices);
        } else {
            GL20.glUniformMatrix3(location, transpose, matrices);
        }
    }

    public static void glUniformMatrix4(int location, boolean transpose, FloatBuffer matrices) {
        if (arbShaders) {
            ARBShaderObjects.glUniformMatrix4ARB(location, transpose, matrices);
        } else {
            GL20.glUniformMatrix4(location, transpose, matrices);
        }
    }

    public static int glGetAttribLocation(int p_153164_0_, CharSequence p_153164_1_) {
        return arbShaders ? ARBVertexShader.glGetAttribLocationARB(p_153164_0_, p_153164_1_) : GL20.glGetAttribLocation(p_153164_0_, p_153164_1_);
    }

    public static int glGenBuffers() {
        return arbVbo ? ARBVertexBufferObject.glGenBuffersARB() : GL15.glGenBuffers();
    }

    public static void glBindBuffer(int target, int buffer) {
        if (arbVbo) {
            ARBVertexBufferObject.glBindBufferARB(target, buffer);
        } else {
            GL15.glBindBuffer(target, buffer);
        }
    }

    public static void glBufferData(int target, ByteBuffer data, int usage) {
        if (arbVbo) {
            ARBVertexBufferObject.glBufferDataARB(target, data, usage);
        } else {
            GL15.glBufferData(target, data, usage);
        }
    }

    public static void glDeleteBuffers(int buffer) {
        if (arbVbo) {
            ARBVertexBufferObject.glDeleteBuffersARB(buffer);
        } else {
            GL15.glDeleteBuffers(buffer);
        }
    }

    public static boolean useVbo() {
        return !Config.isMultiTexture() && (vboSupported && Minecraft.getMinecraft().gameSettings.useVbo);
    }

    public static void glBindFramebuffer(int target, int framebufferIn) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glBindFramebuffer(target, framebufferIn);
                    break;

                case 1:
                    ARBFramebufferObject.glBindFramebuffer(target, framebufferIn);
                    break;

                case 2:
                    EXTFramebufferObject.glBindFramebufferEXT(target, framebufferIn);
            }
        }
    }

    public static void glBindRenderbuffer(int target, int renderbuffer) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glBindRenderbuffer(target, renderbuffer);
                    break;

                case 1:
                    ARBFramebufferObject.glBindRenderbuffer(target, renderbuffer);
                    break;

                case 2:
                    EXTFramebufferObject.glBindRenderbufferEXT(target, renderbuffer);
            }
        }
    }

    public static void glDeleteRenderbuffers(int renderbuffer) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glDeleteRenderbuffers(renderbuffer);
                    break;

                case 1:
                    ARBFramebufferObject.glDeleteRenderbuffers(renderbuffer);
                    break;

                case 2:
                    EXTFramebufferObject.glDeleteRenderbuffersEXT(renderbuffer);
            }
        }
    }

    public static void glDeleteFramebuffers(int framebufferIn) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glDeleteFramebuffers(framebufferIn);
                    break;

                case 1:
                    ARBFramebufferObject.glDeleteFramebuffers(framebufferIn);
                    break;

                case 2:
                    EXTFramebufferObject.glDeleteFramebuffersEXT(framebufferIn);
            }
        }
    }

    /**
     * Calls the appropriate glGenFramebuffers method and returns the newly created fbo, or returns -1 if not supported.
     */
    public static int glGenFramebuffers() {
        if (!framebufferSupported) {
            return -1;
        } else {
            switch (framebufferType) {
                case 0:
                    return GL30.glGenFramebuffers();

                case 1:
                    return ARBFramebufferObject.glGenFramebuffers();

                case 2:
                    return EXTFramebufferObject.glGenFramebuffersEXT();

                default:
                    return -1;
            }
        }
    }

    public static int glGenRenderbuffers() {
        if (!framebufferSupported) {
            return -1;
        } else {
            switch (framebufferType) {
                case 0:
                    return GL30.glGenRenderbuffers();

                case 1:
                    return ARBFramebufferObject.glGenRenderbuffers();

                case 2:
                    return EXTFramebufferObject.glGenRenderbuffersEXT();

                default:
                    return -1;
            }
        }
    }

    public static void glRenderbufferStorage(int target, int internalFormat, int width, int height) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glRenderbufferStorage(target, internalFormat, width, height);
                    break;

                case 1:
                    ARBFramebufferObject.glRenderbufferStorage(target, internalFormat, width, height);
                    break;

                case 2:
                    EXTFramebufferObject.glRenderbufferStorageEXT(target, internalFormat, width, height);
            }
        }
    }

    public static void glFramebufferRenderbuffer(int target, int attachment, int renderBufferTarget, int renderBuffer) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glFramebufferRenderbuffer(target, attachment, renderBufferTarget, renderBuffer);
                    break;

                case 1:
                    ARBFramebufferObject.glFramebufferRenderbuffer(target, attachment, renderBufferTarget, renderBuffer);
                    break;

                case 2:
                    EXTFramebufferObject.glFramebufferRenderbufferEXT(target, attachment, renderBufferTarget, renderBuffer);
            }
        }
    }

    public static int glCheckFramebufferStatus(int target) {
        if (!framebufferSupported) {
            return -1;
        } else {
            switch (framebufferType) {
                case 0:
                    return GL30.glCheckFramebufferStatus(target);

                case 1:
                    return ARBFramebufferObject.glCheckFramebufferStatus(target);

                case 2:
                    return EXTFramebufferObject.glCheckFramebufferStatusEXT(target);

                default:
                    return -1;
            }
        }
    }

    public static void glFramebufferTexture2D(int target, int attachment, int textarget, int texture, int level) {
        if (framebufferSupported) {
            switch (framebufferType) {
                case 0:
                    GL30.glFramebufferTexture2D(target, attachment, textarget, texture, level);
                    break;

                case 1:
                    ARBFramebufferObject.glFramebufferTexture2D(target, attachment, textarget, texture, level);
                    break;

                case 2:
                    EXTFramebufferObject.glFramebufferTexture2DEXT(target, attachment, textarget, texture, level);
            }
        }
    }

    /**
     * Sets the current lightmap texture to the specified OpenGL constant
     */
    public static void setActiveTexture(int texture) {
        if (arbMultitexture) {
            ARBMultitexture.glActiveTextureARB(texture);
        } else {
            GL13.glActiveTexture(texture);
        }
    }

    /**
     * Sets the current lightmap texture to the specified OpenGL constant
     */
    public static void setClientActiveTexture(int texture) {
        if (arbMultitexture) {
            ARBMultitexture.glClientActiveTextureARB(texture);
        } else {
            GL13.glClientActiveTexture(texture);
        }
    }

    /**
     * Sets the current coordinates of the given lightmap texture
     */
    public static void setLightmapTextureCoords(int target, float p_77475_1_, float p_77475_2_) {
        if (arbMultitexture) {
            ARBMultitexture.glMultiTexCoord2fARB(target, p_77475_1_, p_77475_2_);
        } else {
            GL13.glMultiTexCoord2f(target, p_77475_1_, p_77475_2_);
        }

        if (target == lightmapTexUnit) {
            lastBrightnessX = p_77475_1_;
            lastBrightnessY = p_77475_2_;
        }
    }

    public static void glBlendFunc(int sFactorRGB, int dFactorRGB, int sfactorAlpha, int dfactorAlpha) {
        if (openGL14) {
            if (extBlendFuncSeparate) {
                EXTBlendFuncSeparate.glBlendFuncSeparateEXT(sFactorRGB, dFactorRGB, sfactorAlpha, dfactorAlpha);
            } else {
                GL14.glBlendFuncSeparate(sFactorRGB, dFactorRGB, sfactorAlpha, dfactorAlpha);
            }
        } else {
            GL11.glBlendFunc(sFactorRGB, dFactorRGB);
        }
    }

    public static boolean isFramebufferEnabled() {
        return !Config.isFastRender() && (!Config.isAntialiasing() && (framebufferSupported && Minecraft.getMinecraft().gameSettings.fboEnable));
    }
}