1/*******************************************************************************
2 * Copyright 2011 See AUTHORS file.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *   http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 ******************************************************************************/
16
17package com.badlogic.gdx.backends.lwjgl3;
18
19import java.nio.Buffer;
20import java.nio.ByteBuffer;
21import java.nio.ByteOrder;
22import java.nio.DoubleBuffer;
23import java.nio.FloatBuffer;
24import java.nio.IntBuffer;
25import java.nio.ShortBuffer;
26
27import org.lwjgl.BufferUtils;
28import org.lwjgl.opengl.EXTFramebufferObject;
29import org.lwjgl.opengl.GL11;
30import org.lwjgl.opengl.GL13;
31import org.lwjgl.opengl.GL14;
32import org.lwjgl.opengl.GL15;
33import org.lwjgl.opengl.GL20;
34
35import com.badlogic.gdx.utils.GdxRuntimeException;
36
37class Lwjgl3GL20 implements com.badlogic.gdx.graphics.GL20 {
38	private ByteBuffer buffer = null;
39	private FloatBuffer floatBuffer = null;
40	private IntBuffer intBuffer = null;
41
42	private void ensureBufferCapacity (int numBytes) {
43		if (buffer == null || buffer.capacity() < numBytes) {
44			buffer = com.badlogic.gdx.utils.BufferUtils.newByteBuffer(numBytes);
45			floatBuffer = buffer.asFloatBuffer();
46			intBuffer = buffer.asIntBuffer();
47		}
48	}
49
50	private FloatBuffer toFloatBuffer (float v[], int offset, int count) {
51		ensureBufferCapacity(count << 2);
52		floatBuffer.clear();
53		com.badlogic.gdx.utils.BufferUtils.copy(v, floatBuffer, count, offset);
54		return floatBuffer;
55	}
56
57	private IntBuffer toIntBuffer (int v[], int offset, int count) {
58		ensureBufferCapacity(count << 2);
59		intBuffer.clear();
60		com.badlogic.gdx.utils.BufferUtils.copy(v, count, offset, intBuffer);
61		return intBuffer;
62	}
63
64	public void glActiveTexture (int texture) {
65		GL13.glActiveTexture(texture);
66	}
67
68	public void glAttachShader (int program, int shader) {
69		GL20.glAttachShader(program, shader);
70	}
71
72	public void glBindAttribLocation (int program, int index, String name) {
73		GL20.glBindAttribLocation(program, index, name);
74	}
75
76	public void glBindBuffer (int target, int buffer) {
77		GL15.glBindBuffer(target, buffer);
78	}
79
80	public void glBindFramebuffer (int target, int framebuffer) {
81		EXTFramebufferObject.glBindFramebufferEXT(target, framebuffer);
82	}
83
84	public void glBindRenderbuffer (int target, int renderbuffer) {
85		EXTFramebufferObject.glBindRenderbufferEXT(target, renderbuffer);
86	}
87
88	public void glBindTexture (int target, int texture) {
89		GL11.glBindTexture(target, texture);
90	}
91
92	public void glBlendColor (float red, float green, float blue, float alpha) {
93		GL14.glBlendColor(red, green, blue, alpha);
94	}
95
96	public void glBlendEquation (int mode) {
97		GL14.glBlendEquation(mode);
98	}
99
100	public void glBlendEquationSeparate (int modeRGB, int modeAlpha) {
101		GL20.glBlendEquationSeparate(modeRGB, modeAlpha);
102	}
103
104	public void glBlendFunc (int sfactor, int dfactor) {
105		GL11.glBlendFunc(sfactor, dfactor);
106	}
107
108	public void glBlendFuncSeparate (int srcRGB, int dstRGB, int srcAlpha, int dstAlpha) {
109		GL14.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
110	}
111
112	public void glBufferData (int target, int size, Buffer data, int usage) {
113		if (data == null)
114			GL15.glBufferData(target, size, usage);
115		else if (data instanceof ByteBuffer)
116			GL15.glBufferData(target, (ByteBuffer)data, usage);
117		else if (data instanceof IntBuffer)
118			GL15.glBufferData(target, (IntBuffer)data, usage);
119		else if (data instanceof FloatBuffer)
120			GL15.glBufferData(target, (FloatBuffer)data, usage);
121		else if (data instanceof DoubleBuffer)
122			GL15.glBufferData(target, (DoubleBuffer)data, usage);
123		else if (data instanceof ShortBuffer) //
124			GL15.glBufferData(target, (ShortBuffer)data, usage);
125	}
126
127	public void glBufferSubData (int target, int offset, int size, Buffer data) {
128		if (data == null)
129			throw new GdxRuntimeException("Using null for the data not possible, blame LWJGL");
130		else if (data instanceof ByteBuffer)
131			GL15.glBufferSubData(target, offset, (ByteBuffer)data);
132		else if (data instanceof IntBuffer)
133			GL15.glBufferSubData(target, offset, (IntBuffer)data);
134		else if (data instanceof FloatBuffer)
135			GL15.glBufferSubData(target, offset, (FloatBuffer)data);
136		else if (data instanceof DoubleBuffer)
137			GL15.glBufferSubData(target, offset, (DoubleBuffer)data);
138		else if (data instanceof ShortBuffer) //
139			GL15.glBufferSubData(target, offset, (ShortBuffer)data);
140	}
141
142	public int glCheckFramebufferStatus (int target) {
143		return EXTFramebufferObject.glCheckFramebufferStatusEXT(target);
144	}
145
146	public void glClear (int mask) {
147		GL11.glClear(mask);
148	}
149
150	public void glClearColor (float red, float green, float blue, float alpha) {
151		GL11.glClearColor(red, green, blue, alpha);
152	}
153
154	public void glClearDepthf (float depth) {
155		GL11.glClearDepth(depth);
156	}
157
158	public void glClearStencil (int s) {
159		GL11.glClearStencil(s);
160	}
161
162	public void glColorMask (boolean red, boolean green, boolean blue, boolean alpha) {
163		GL11.glColorMask(red, green, blue, alpha);
164	}
165
166	public void glCompileShader (int shader) {
167		GL20.glCompileShader(shader);
168	}
169
170	public void glCompressedTexImage2D (int target, int level, int internalformat, int width, int height, int border,
171		int imageSize, Buffer data) {
172		if (data instanceof ByteBuffer) {
173			GL13.glCompressedTexImage2D(target, level, internalformat, width, height, border, (ByteBuffer)data);
174		} else {
175			throw new GdxRuntimeException("Can't use " + data.getClass().getName() + " with this method. Use ByteBuffer instead.");
176		}
177	}
178
179	public void glCompressedTexSubImage2D (int target, int level, int xoffset, int yoffset, int width, int height, int format,
180		int imageSize, Buffer data) {
181		throw new GdxRuntimeException("not implemented");
182	}
183
184	public void glCopyTexImage2D (int target, int level, int internalformat, int x, int y, int width, int height, int border) {
185		GL11.glCopyTexImage2D(target, level, internalformat, x, y, width, height, border);
186	}
187
188	public void glCopyTexSubImage2D (int target, int level, int xoffset, int yoffset, int x, int y, int width, int height) {
189		GL11.glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
190	}
191
192	public int glCreateProgram () {
193		return GL20.glCreateProgram();
194	}
195
196	public int glCreateShader (int type) {
197		return GL20.glCreateShader(type);
198	}
199
200	public void glCullFace (int mode) {
201		GL11.glCullFace(mode);
202	}
203
204	public void glDeleteBuffers (int n, IntBuffer buffers) {
205		GL15.glDeleteBuffers(buffers);
206	}
207
208	@Override
209	public void glDeleteBuffer (int buffer) {
210		GL15.glDeleteBuffers(buffer);
211	}
212
213	public void glDeleteFramebuffers (int n, IntBuffer framebuffers) {
214		EXTFramebufferObject.glDeleteFramebuffersEXT(framebuffers);
215	}
216
217	@Override
218	public void glDeleteFramebuffer (int framebuffer) {
219		EXTFramebufferObject.glDeleteFramebuffersEXT(framebuffer);
220	}
221
222	public void glDeleteProgram (int program) {
223		GL20.glDeleteProgram(program);
224	}
225
226	public void glDeleteRenderbuffers (int n, IntBuffer renderbuffers) {
227		EXTFramebufferObject.glDeleteRenderbuffersEXT(renderbuffers);
228	}
229
230	public void glDeleteRenderbuffer (int renderbuffer) {
231		EXTFramebufferObject.glDeleteRenderbuffersEXT(renderbuffer);
232	}
233
234	public void glDeleteShader (int shader) {
235		GL20.glDeleteShader(shader);
236	}
237
238	public void glDeleteTextures (int n, IntBuffer textures) {
239		GL11.glDeleteTextures(textures);
240	}
241
242	@Override
243	public void glDeleteTexture (int texture) {
244		GL11.glDeleteTextures(texture);
245	}
246
247	public void glDepthFunc (int func) {
248		GL11.glDepthFunc(func);
249	}
250
251	public void glDepthMask (boolean flag) {
252		GL11.glDepthMask(flag);
253	}
254
255	public void glDepthRangef (float zNear, float zFar) {
256		GL11.glDepthRange(zNear, zFar);
257	}
258
259	public void glDetachShader (int program, int shader) {
260		GL20.glDetachShader(program, shader);
261	}
262
263	public void glDisable (int cap) {
264		GL11.glDisable(cap);
265	}
266
267	public void glDisableVertexAttribArray (int index) {
268		GL20.glDisableVertexAttribArray(index);
269	}
270
271	public void glDrawArrays (int mode, int first, int count) {
272		GL11.glDrawArrays(mode, first, count);
273	}
274
275	public void glDrawElements (int mode, int count, int type, Buffer indices) {
276		if (indices instanceof ShortBuffer && type == com.badlogic.gdx.graphics.GL20.GL_UNSIGNED_SHORT)
277			GL11.glDrawElements(mode, (ShortBuffer)indices);
278		else if (indices instanceof ByteBuffer && type == com.badlogic.gdx.graphics.GL20.GL_UNSIGNED_SHORT)
279			GL11.glDrawElements(mode, ((ByteBuffer)indices).asShortBuffer());
280		else if (indices instanceof ByteBuffer && type == com.badlogic.gdx.graphics.GL20.GL_UNSIGNED_BYTE)
281			GL11.glDrawElements(mode, (ByteBuffer)indices);
282		else
283			throw new GdxRuntimeException("Can't use " + indices.getClass().getName()
284				+ " with this method. Use ShortBuffer or ByteBuffer instead. Blame LWJGL");
285	}
286
287	public void glEnable (int cap) {
288		GL11.glEnable(cap);
289	}
290
291	public void glEnableVertexAttribArray (int index) {
292		GL20.glEnableVertexAttribArray(index);
293	}
294
295	public void glFinish () {
296		GL11.glFinish();
297	}
298
299	public void glFlush () {
300		GL11.glFlush();
301	}
302
303	public void glFramebufferRenderbuffer (int target, int attachment, int renderbuffertarget, int renderbuffer) {
304		EXTFramebufferObject.glFramebufferRenderbufferEXT(target, attachment, renderbuffertarget, renderbuffer);
305	}
306
307	public void glFramebufferTexture2D (int target, int attachment, int textarget, int texture, int level) {
308		EXTFramebufferObject.glFramebufferTexture2DEXT(target, attachment, textarget, texture, level);
309	}
310
311	public void glFrontFace (int mode) {
312		GL11.glFrontFace(mode);
313	}
314
315	public void glGenBuffers (int n, IntBuffer buffers) {
316		GL15.glGenBuffers(buffers);
317	}
318
319	public int glGenBuffer () {
320		return GL15.glGenBuffers();
321	}
322
323	public void glGenFramebuffers (int n, IntBuffer framebuffers) {
324		EXTFramebufferObject.glGenFramebuffersEXT(framebuffers);
325	}
326
327	public int glGenFramebuffer () {
328		return EXTFramebufferObject.glGenFramebuffersEXT();
329	}
330
331	public void glGenRenderbuffers (int n, IntBuffer renderbuffers) {
332		EXTFramebufferObject.glGenRenderbuffersEXT(renderbuffers);
333	}
334
335	public int glGenRenderbuffer () {
336		return EXTFramebufferObject.glGenRenderbuffersEXT();
337	}
338
339	public void glGenTextures (int n, IntBuffer textures) {
340		GL11.glGenTextures(textures);
341	}
342
343	public int glGenTexture () {
344		return GL11.glGenTextures();
345	}
346
347	public void glGenerateMipmap (int target) {
348		EXTFramebufferObject.glGenerateMipmapEXT(target);
349	}
350
351	public String glGetActiveAttrib (int program, int index, IntBuffer size, Buffer type) {
352		IntBuffer typeTmp = BufferUtils.createIntBuffer(2);
353		String name = GL20.glGetActiveAttrib(program, index, 256, size, typeTmp);
354		size.put(typeTmp.get(0));
355		if (type instanceof IntBuffer) ((IntBuffer)type).put(typeTmp.get(1));
356		return name;
357	}
358
359	public String glGetActiveUniform (int program, int index, IntBuffer size, Buffer type) {
360		IntBuffer typeTmp = BufferUtils.createIntBuffer(2);
361		String name = GL20.glGetActiveUniform(program, index, 256, size, typeTmp);
362		size.put(typeTmp.get(0));
363		if (type instanceof IntBuffer) ((IntBuffer)type).put(typeTmp.get(1));
364		return name;
365	}
366
367	public void glGetAttachedShaders (int program, int maxcount, Buffer count, IntBuffer shaders) {
368		GL20.glGetAttachedShaders(program, (IntBuffer)count, shaders);
369	}
370
371	public int glGetAttribLocation (int program, String name) {
372		return GL20.glGetAttribLocation(program, name);
373	}
374
375	public void glGetBooleanv (int pname, Buffer params) {
376		((ByteBuffer)params).put(GL11.glGetBoolean(pname)?(byte)1: (byte)0);
377	}
378
379	public void glGetBufferParameteriv (int target, int pname, IntBuffer params) {
380		GL15.glGetBufferParameteriv(target, pname, params);
381	}
382
383	public int glGetError () {
384		return GL11.glGetError();
385	}
386
387	public void glGetFloatv (int pname, FloatBuffer params) {
388		GL11.glGetFloatv(pname, params);
389	}
390
391	public void glGetFramebufferAttachmentParameteriv (int target, int attachment, int pname, IntBuffer params) {
392		EXTFramebufferObject.glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
393	}
394
395	public void glGetIntegerv (int pname, IntBuffer params) {
396		GL11.glGetIntegerv(pname, params);
397	}
398
399	public String glGetProgramInfoLog (int program) {
400		ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 10);
401		buffer.order(ByteOrder.nativeOrder());
402		ByteBuffer tmp = ByteBuffer.allocateDirect(4);
403		tmp.order(ByteOrder.nativeOrder());
404		IntBuffer intBuffer = tmp.asIntBuffer();
405
406		GL20.glGetProgramInfoLog(program, intBuffer, buffer);
407		int numBytes = intBuffer.get(0);
408		byte[] bytes = new byte[numBytes];
409		buffer.get(bytes);
410		return new String(bytes);
411	}
412
413	public void glGetProgramiv (int program, int pname, IntBuffer params) {
414		GL20.glGetProgramiv(program, pname, params);
415	}
416
417	public void glGetRenderbufferParameteriv (int target, int pname, IntBuffer params) {
418		EXTFramebufferObject.glGetRenderbufferParameterivEXT(target, pname, params);
419	}
420
421	public String glGetShaderInfoLog (int shader) {
422		ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 10);
423		buffer.order(ByteOrder.nativeOrder());
424		ByteBuffer tmp = ByteBuffer.allocateDirect(4);
425		tmp.order(ByteOrder.nativeOrder());
426		IntBuffer intBuffer = tmp.asIntBuffer();
427
428		GL20.glGetShaderInfoLog(shader, intBuffer, buffer);
429		int numBytes = intBuffer.get(0);
430		byte[] bytes = new byte[numBytes];
431		buffer.get(bytes);
432		return new String(bytes);
433	}
434
435	public void glGetShaderPrecisionFormat (int shadertype, int precisiontype, IntBuffer range, IntBuffer precision) {
436		throw new UnsupportedOperationException("unsupported, won't implement");
437	}
438
439	public void glGetShaderiv (int shader, int pname, IntBuffer params) {
440		GL20.glGetShaderiv(shader, pname, params);
441	}
442
443	public String glGetString (int name) {
444		return GL11.glGetString(name);
445	}
446
447	public void glGetTexParameterfv (int target, int pname, FloatBuffer params) {
448		GL11.glGetTexParameterfv(target, pname, params);
449	}
450
451	public void glGetTexParameteriv (int target, int pname, IntBuffer params) {
452		GL11.glGetTexParameteriv(target, pname, params);
453	}
454
455	public int glGetUniformLocation (int program, String name) {
456		return GL20.glGetUniformLocation(program, name);
457	}
458
459	public void glGetUniformfv (int program, int location, FloatBuffer params) {
460		GL20.glGetUniformfv(program, location, params);
461	}
462
463	public void glGetUniformiv (int program, int location, IntBuffer params) {
464		GL20.glGetUniformiv(program, location, params);
465	}
466
467	public void glGetVertexAttribPointerv (int index, int pname, Buffer pointer) {
468		throw new UnsupportedOperationException("unsupported, won't implement");
469	}
470
471	public void glGetVertexAttribfv (int index, int pname, FloatBuffer params) {
472		GL20.glGetVertexAttribfv(index, pname, params);
473	}
474
475	public void glGetVertexAttribiv (int index, int pname, IntBuffer params) {
476		GL20.glGetVertexAttribiv(index, pname, params);
477	}
478
479	public void glHint (int target, int mode) {
480		GL11.glHint(target, mode);
481	}
482
483	public boolean glIsBuffer (int buffer) {
484		return GL15.glIsBuffer(buffer);
485	}
486
487	public boolean glIsEnabled (int cap) {
488		return GL11.glIsEnabled(cap);
489	}
490
491	public boolean glIsFramebuffer (int framebuffer) {
492		return EXTFramebufferObject.glIsFramebufferEXT(framebuffer);
493	}
494
495	public boolean glIsProgram (int program) {
496		return GL20.glIsProgram(program);
497	}
498
499	public boolean glIsRenderbuffer (int renderbuffer) {
500		return EXTFramebufferObject.glIsRenderbufferEXT(renderbuffer);
501	}
502
503	public boolean glIsShader (int shader) {
504		return GL20.glIsShader(shader);
505	}
506
507	public boolean glIsTexture (int texture) {
508		return GL11.glIsTexture(texture);
509	}
510
511	public void glLineWidth (float width) {
512		GL11.glLineWidth(width);
513	}
514
515	public void glLinkProgram (int program) {
516		GL20.glLinkProgram(program);
517	}
518
519	public void glPixelStorei (int pname, int param) {
520		GL11.glPixelStorei(pname, param);
521	}
522
523	public void glPolygonOffset (float factor, float units) {
524		GL11.glPolygonOffset(factor, units);
525	}
526
527	public void glReadPixels (int x, int y, int width, int height, int format, int type, Buffer pixels) {
528		if (pixels instanceof ByteBuffer)
529			GL11.glReadPixels(x, y, width, height, format, type, (ByteBuffer)pixels);
530		else if (pixels instanceof ShortBuffer)
531			GL11.glReadPixels(x, y, width, height, format, type, (ShortBuffer)pixels);
532		else if (pixels instanceof IntBuffer)
533			GL11.glReadPixels(x, y, width, height, format, type, (IntBuffer)pixels);
534		else if (pixels instanceof FloatBuffer)
535			GL11.glReadPixels(x, y, width, height, format, type, (FloatBuffer)pixels);
536		else
537			throw new GdxRuntimeException("Can't use " + pixels.getClass().getName()
538				+ " with this method. Use ByteBuffer, ShortBuffer, IntBuffer or FloatBuffer instead. Blame LWJGL");
539	}
540
541	public void glReleaseShaderCompiler () {
542		// nothing to do here
543	}
544
545	public void glRenderbufferStorage (int target, int internalformat, int width, int height) {
546		EXTFramebufferObject.glRenderbufferStorageEXT(target, internalformat, width, height);
547	}
548
549	public void glSampleCoverage (float value, boolean invert) {
550		GL13.glSampleCoverage(value, invert);
551	}
552
553	public void glScissor (int x, int y, int width, int height) {
554		GL11.glScissor(x, y, width, height);
555	}
556
557	public void glShaderBinary (int n, IntBuffer shaders, int binaryformat, Buffer binary, int length) {
558		throw new UnsupportedOperationException("unsupported, won't implement");
559	}
560
561	public void glShaderSource (int shader, String string) {
562		GL20.glShaderSource(shader, string);
563	}
564
565	public void glStencilFunc (int func, int ref, int mask) {
566		GL11.glStencilFunc(func, ref, mask);
567	}
568
569	public void glStencilFuncSeparate (int face, int func, int ref, int mask) {
570		GL20.glStencilFuncSeparate(face, func, ref, mask);
571	}
572
573	public void glStencilMask (int mask) {
574		GL11.glStencilMask(mask);
575	}
576
577	public void glStencilMaskSeparate (int face, int mask) {
578		GL20.glStencilMaskSeparate(face, mask);
579	}
580
581	public void glStencilOp (int fail, int zfail, int zpass) {
582		GL11.glStencilOp(fail, zfail, zpass);
583	}
584
585	public void glStencilOpSeparate (int face, int fail, int zfail, int zpass) {
586		GL20.glStencilOpSeparate(face, fail, zfail, zpass);
587	}
588
589	public void glTexImage2D (int target, int level, int internalformat, int width, int height, int border, int format, int type,
590		Buffer pixels) {
591		if (pixels == null)
592			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (ByteBuffer)null);
593		else if (pixels instanceof ByteBuffer)
594			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (ByteBuffer)pixels);
595		else if (pixels instanceof ShortBuffer)
596			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (ShortBuffer)pixels);
597		else if (pixels instanceof IntBuffer)
598			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (IntBuffer)pixels);
599		else if (pixels instanceof FloatBuffer)
600			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (FloatBuffer)pixels);
601		else if (pixels instanceof DoubleBuffer)
602			GL11.glTexImage2D(target, level, internalformat, width, height, border, format, type, (DoubleBuffer)pixels);
603		else
604			throw new GdxRuntimeException("Can't use " + pixels.getClass().getName()
605				+ " with this method. Use ByteBuffer, ShortBuffer, IntBuffer, FloatBuffer or DoubleBuffer instead. Blame LWJGL");
606	}
607
608	public void glTexParameterf (int target, int pname, float param) {
609		GL11.glTexParameterf(target, pname, param);
610	}
611
612	public void glTexParameterfv (int target, int pname, FloatBuffer params) {
613		GL11.glTexParameterfv(target, pname, params);
614	}
615
616	public void glTexParameteri (int target, int pname, int param) {
617		GL11.glTexParameteri(target, pname, param);
618	}
619
620	public void glTexParameteriv (int target, int pname, IntBuffer params) {
621		GL11.glTexParameteriv(target, pname, params);
622	}
623
624	public void glTexSubImage2D (int target, int level, int xoffset, int yoffset, int width, int height, int format, int type,
625		Buffer pixels) {
626		if (pixels instanceof ByteBuffer)
627			GL11.glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, (ByteBuffer)pixels);
628		else if (pixels instanceof ShortBuffer)
629			GL11.glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, (ShortBuffer)pixels);
630		else if (pixels instanceof IntBuffer)
631			GL11.glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, (IntBuffer)pixels);
632		else if (pixels instanceof FloatBuffer)
633			GL11.glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, (FloatBuffer)pixels);
634		else if (pixels instanceof DoubleBuffer)
635			GL11.glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, (DoubleBuffer)pixels);
636		else
637			throw new GdxRuntimeException("Can't use " + pixels.getClass().getName()
638				+ " with this method. Use ByteBuffer, ShortBuffer, IntBuffer, FloatBuffer or DoubleBuffer instead. Blame LWJGL");
639	}
640
641	public void glUniform1f (int location, float x) {
642		GL20.glUniform1f(location, x);
643	}
644
645	public void glUniform1fv (int location, int count, FloatBuffer v) {
646		GL20.glUniform1fv(location, v);
647	}
648
649	public void glUniform1fv (int location, int count, float[] v, int offset) {
650		GL20.glUniform1fv(location, toFloatBuffer(v, offset, count));
651	}
652
653	public void glUniform1i (int location, int x) {
654		GL20.glUniform1i(location, x);
655	}
656
657	public void glUniform1iv (int location, int count, IntBuffer v) {
658		GL20.glUniform1iv(location, v);
659	}
660
661	@Override
662	public void glUniform1iv (int location, int count, int[] v, int offset) {
663		GL20.glUniform1iv(location, toIntBuffer(v, offset, count));
664	}
665
666	public void glUniform2f (int location, float x, float y) {
667		GL20.glUniform2f(location, x, y);
668	}
669
670	public void glUniform2fv (int location, int count, FloatBuffer v) {
671		GL20.glUniform2fv(location, v);
672	}
673
674	public void glUniform2fv (int location, int count, float[] v, int offset) {
675		GL20.glUniform2fv(location, toFloatBuffer(v, offset, count << 1));
676	}
677
678	public void glUniform2i (int location, int x, int y) {
679		GL20.glUniform2i(location, x, y);
680	}
681
682	public void glUniform2iv (int location, int count, IntBuffer v) {
683		GL20.glUniform2iv(location, v);
684	}
685
686	public void glUniform2iv (int location, int count, int[] v, int offset) {
687		GL20.glUniform2iv(location, toIntBuffer(v, offset, count << 1));
688	}
689
690	public void glUniform3f (int location, float x, float y, float z) {
691		GL20.glUniform3f(location, x, y, z);
692	}
693
694	public void glUniform3fv (int location, int count, FloatBuffer v) {
695		GL20.glUniform3fv(location, v);
696	}
697
698	public void glUniform3fv (int location, int count, float[] v, int offset) {
699		GL20.glUniform3fv(location, toFloatBuffer(v, offset, count * 3));
700	}
701
702	public void glUniform3i (int location, int x, int y, int z) {
703		GL20.glUniform3i(location, x, y, z);
704	}
705
706	public void glUniform3iv (int location, int count, IntBuffer v) {
707		GL20.glUniform3iv(location, v);
708	}
709
710	public void glUniform3iv (int location, int count, int[] v, int offset) {
711		GL20.glUniform3iv(location, toIntBuffer(v, offset, count * 3));
712	}
713
714	public void glUniform4f (int location, float x, float y, float z, float w) {
715		GL20.glUniform4f(location, x, y, z, w);
716	}
717
718	public void glUniform4fv (int location, int count, FloatBuffer v) {
719		GL20.glUniform4fv(location, v);
720	}
721
722	public void glUniform4fv (int location, int count, float[] v, int offset) {
723		GL20.glUniform4fv(location, toFloatBuffer(v, offset, count << 2));
724	}
725
726	public void glUniform4i (int location, int x, int y, int z, int w) {
727		GL20.glUniform4i(location, x, y, z, w);
728	}
729
730	public void glUniform4iv (int location, int count, IntBuffer v) {
731		GL20.glUniform4iv(location, v);
732	}
733
734	public void glUniform4iv (int location, int count, int[] v, int offset) {
735		GL20.glUniform4iv(location, toIntBuffer(v, offset, count << 2));
736	}
737
738	public void glUniformMatrix2fv (int location, int count, boolean transpose, FloatBuffer value) {
739		GL20.glUniformMatrix2fv(location, transpose, value);
740	}
741
742	public void glUniformMatrix2fv (int location, int count, boolean transpose, float[] value, int offset) {
743		GL20.glUniformMatrix2fv(location, transpose, toFloatBuffer(value, offset, count << 2));
744	}
745
746	public void glUniformMatrix3fv (int location, int count, boolean transpose, FloatBuffer value) {
747		GL20.glUniformMatrix3fv(location, transpose, value);
748	}
749
750	public void glUniformMatrix3fv (int location, int count, boolean transpose, float[] value, int offset) {
751		GL20.glUniformMatrix3fv(location, transpose, toFloatBuffer(value, offset, count * 9));
752	}
753
754	public void glUniformMatrix4fv (int location, int count, boolean transpose, FloatBuffer value) {
755		GL20.glUniformMatrix4fv(location, transpose, value);
756	}
757
758	public void glUniformMatrix4fv (int location, int count, boolean transpose, float[] value, int offset) {
759		GL20.glUniformMatrix4fv(location, transpose, toFloatBuffer(value, offset, count << 4));
760	}
761
762	public void glUseProgram (int program) {
763		GL20.glUseProgram(program);
764	}
765
766	public void glValidateProgram (int program) {
767		GL20.glValidateProgram(program);
768	}
769
770	public void glVertexAttrib1f (int indx, float x) {
771		GL20.glVertexAttrib1f(indx, x);
772	}
773
774	public void glVertexAttrib1fv (int indx, FloatBuffer values) {
775		GL20.glVertexAttrib1f(indx, values.get());
776	}
777
778	public void glVertexAttrib2f (int indx, float x, float y) {
779		GL20.glVertexAttrib2f(indx, x, y);
780	}
781
782	public void glVertexAttrib2fv (int indx, FloatBuffer values) {
783		GL20.glVertexAttrib2f(indx, values.get(), values.get());
784	}
785
786	public void glVertexAttrib3f (int indx, float x, float y, float z) {
787		GL20.glVertexAttrib3f(indx, x, y, z);
788	}
789
790	public void glVertexAttrib3fv (int indx, FloatBuffer values) {
791		GL20.glVertexAttrib3f(indx, values.get(), values.get(), values.get());
792	}
793
794	public void glVertexAttrib4f (int indx, float x, float y, float z, float w) {
795		GL20.glVertexAttrib4f(indx, x, y, z, w);
796	}
797
798	public void glVertexAttrib4fv (int indx, FloatBuffer values) {
799		GL20.glVertexAttrib4f(indx, values.get(), values.get(), values.get(), values.get());
800	}
801
802	public void glVertexAttribPointer (int indx, int size, int type, boolean normalized, int stride, Buffer buffer) {
803		if (buffer instanceof ByteBuffer) {
804			if (type == GL_BYTE)
805				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, (ByteBuffer)buffer);
806			else if (type == GL_UNSIGNED_BYTE)
807				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, (ByteBuffer)buffer);
808			else if (type == GL_SHORT)
809				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, ((ByteBuffer)buffer).asShortBuffer());
810			else if (type == GL_UNSIGNED_SHORT)
811				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, ((ByteBuffer)buffer).asShortBuffer());
812			else if (type == GL_FLOAT)
813				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, ((ByteBuffer)buffer).asFloatBuffer());
814			else
815				throw new GdxRuntimeException(
816					"Can't use "
817						+ buffer.getClass().getName()
818						+ " with type "
819						+ type
820						+ " with this method. Use ByteBuffer and one of GL_BYTE, GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT or GL_FLOAT for type. Blame LWJGL");
821		} else if (buffer instanceof FloatBuffer) {
822			if (type == GL_FLOAT)
823				GL20.glVertexAttribPointer(indx, size, type, normalized, stride, (FloatBuffer)buffer);
824			else
825				throw new GdxRuntimeException("Can't use " + buffer.getClass().getName() + " with type " + type
826					+ " with this method.");
827		} else
828			throw new GdxRuntimeException("Can't use " + buffer.getClass().getName()
829				+ " with this method. Use ByteBuffer instead. Blame LWJGL");
830	}
831
832	public void glViewport (int x, int y, int width, int height) {
833		GL11.glViewport(x, y, width, height);
834	}
835
836	public void glDrawElements (int mode, int count, int type, int indices) {
837		GL11.glDrawElements(mode, count, type, indices);
838	}
839
840	public void glVertexAttribPointer (int indx, int size, int type, boolean normalized, int stride, int ptr) {
841		GL20.glVertexAttribPointer(indx, size, type, normalized, stride, ptr);
842	}
843}
844