/*
* Copyright (c) 2009-2012 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.renderer.lwjgl;
import com.jme3.light.LightList;
import com.jme3.material.RenderState;
import com.jme3.material.RenderState.StencilOperation;
import com.jme3.material.RenderState.TestFunction;
import com.jme3.math.*;
import com.jme3.renderer.*;
import com.jme3.scene.Mesh;
import com.jme3.scene.Mesh.Mode;
import com.jme3.scene.VertexBuffer;
import com.jme3.scene.VertexBuffer.Format;
import com.jme3.scene.VertexBuffer.Type;
import com.jme3.scene.VertexBuffer.Usage;
import com.jme3.shader.Attribute;
import com.jme3.shader.Shader;
import com.jme3.shader.Shader.ShaderSource;
import com.jme3.shader.Shader.ShaderType;
import com.jme3.shader.Uniform;
import com.jme3.texture.FrameBuffer;
import com.jme3.texture.FrameBuffer.RenderBuffer;
import com.jme3.texture.Image;
import com.jme3.texture.Texture;
import com.jme3.texture.Texture.WrapAxis;
import com.jme3.util.BufferUtils;
import com.jme3.util.ListMap;
import com.jme3.util.NativeObject;
import com.jme3.util.NativeObjectManager;
import com.jme3.util.SafeArrayList;
import java.nio.*;
import java.util.EnumSet;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import jme3tools.converters.MipMapGenerator;
import jme3tools.shader.ShaderDebug;
import static org.lwjgl.opengl.ARBTextureMultisample.*;
import static org.lwjgl.opengl.EXTFramebufferBlit.*;
import static org.lwjgl.opengl.EXTFramebufferMultisample.*;
import static org.lwjgl.opengl.EXTFramebufferObject.*;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.opengl.GL12.*;
import static org.lwjgl.opengl.GL13.*;
import static org.lwjgl.opengl.GL14.*;
import static org.lwjgl.opengl.GL15.*;
import static org.lwjgl.opengl.GL20.*;
import org.lwjgl.opengl.*;
//import static org.lwjgl.opengl.ARBDrawInstanced.*;
public class LwjglRenderer implements Renderer {
private static final Logger logger = Logger.getLogger(LwjglRenderer.class.getName());
private static final boolean VALIDATE_SHADER = false;
private final ByteBuffer nameBuf = BufferUtils.createByteBuffer(250);
private final StringBuilder stringBuf = new StringBuilder(250);
private final IntBuffer intBuf1 = BufferUtils.createIntBuffer(1);
private final IntBuffer intBuf16 = BufferUtils.createIntBuffer(16);
private final FloatBuffer floatBuf16 = BufferUtils.createFloatBuffer(16);
private final RenderContext context = new RenderContext();
private final NativeObjectManager objManager = new NativeObjectManager();
private final EnumSet<Caps> caps = EnumSet.noneOf(Caps.class);
// current state
private Shader boundShader;
private int initialDrawBuf, initialReadBuf;
private int glslVer;
private int vertexTextureUnits;
private int fragTextureUnits;
private int vertexUniforms;
private int fragUniforms;
private int vertexAttribs;
private int maxFBOSamples;
private int maxFBOAttachs;
private int maxMRTFBOAttachs;
private int maxRBSize;
private int maxTexSize;
private int maxCubeTexSize;
private int maxVertCount;
private int maxTriCount;
private int maxColorTexSamples;
private int maxDepthTexSamples;
private FrameBuffer lastFb = null;
private FrameBuffer mainFbOverride = null;
private final Statistics statistics = new Statistics();
private int vpX, vpY, vpW, vpH;
private int clipX, clipY, clipW, clipH;
public LwjglRenderer() {
}
protected void updateNameBuffer() {
int len = stringBuf.length();
nameBuf.position(0);
nameBuf.limit(len);
for (int i = 0; i < len; i++) {
nameBuf.put((byte) stringBuf.charAt(i));
}
nameBuf.rewind();
}
@Override
public Statistics getStatistics() {
return statistics;
}
@Override
public EnumSet<Caps> getCaps() {
return caps;
}
@SuppressWarnings("fallthrough")
public void initialize() {
ContextCapabilities ctxCaps = GLContext.getCapabilities();
if (ctxCaps.OpenGL20) {
caps.add(Caps.OpenGL20);
if (ctxCaps.OpenGL21) {
caps.add(Caps.OpenGL21);
if (ctxCaps.OpenGL30) {
caps.add(Caps.OpenGL30);
if (ctxCaps.OpenGL31) {
caps.add(Caps.OpenGL31);
if (ctxCaps.OpenGL32) {
caps.add(Caps.OpenGL32);
}
}
}
}
}
//workaround, always assume we support GLSL100
//some cards just don't report this correctly
caps.add(Caps.GLSL100);
String versionStr = null;
if (ctxCaps.OpenGL20) {
versionStr = glGetString(GL_SHADING_LANGUAGE_VERSION);
}
if (versionStr == null || versionStr.equals("")) {
glslVer = -1;
throw new UnsupportedOperationException("GLSL and OpenGL2 is "
+ "required for the LWJGL "
+ "renderer!");
}
// Fix issue in TestRenderToMemory when GL_FRONT is the main
// buffer being used.
initialDrawBuf = glGetInteger(GL_DRAW_BUFFER);
initialReadBuf = glGetInteger(GL_READ_BUFFER);
// XXX: This has to be GL_BACK for canvas on Mac
// Since initialDrawBuf is GL_FRONT for pbuffer, gotta
// change this value later on ...
// initialDrawBuf = GL_BACK;
// initialReadBuf = GL_BACK;
int spaceIdx = versionStr.indexOf(" ");
if (spaceIdx >= 1) {
versionStr = versionStr.substring(0, spaceIdx);
}
float version = Float.parseFloat(versionStr);
glslVer = (int) (version * 100);
switch (glslVer) {
default:
if (glslVer < 400) {
break;
}
// so that future OpenGL revisions wont break jme3
// fall through intentional
case 400:
case 330:
case 150:
caps.add(Caps.GLSL150);
case 140:
caps.add(Caps.GLSL140);
case 130:
caps.add(Caps.GLSL130);
case 120:
caps.add(Caps.GLSL120);
case 110:
caps.add(Caps.GLSL110);
case 100:
caps.add(Caps.GLSL100);
break;
}
if (!caps.contains(Caps.GLSL100)) {
logger.log(Level.WARNING, "Force-adding GLSL100 support, since OpenGL2 is supported.");
caps.add(Caps.GLSL100);
}
glGetInteger(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, intBuf16);
vertexTextureUnits = intBuf16.get(0);
logger.log(Level.FINER, "VTF Units: {0}", vertexTextureUnits);
if (vertexTextureUnits > 0) {
caps.add(Caps.VertexTextureFetch);
}
glGetInteger(GL_MAX_TEXTURE_IMAGE_UNITS, intBuf16);
fragTextureUnits = intBuf16.get(0);
logger.log(Level.FINER, "Texture Units: {0}", fragTextureUnits);
glGetInteger(GL_MAX_VERTEX_UNIFORM_COMPONENTS, intBuf16);
vertexUniforms = intBuf16.get(0);
logger.log(Level.FINER, "Vertex Uniforms: {0}", vertexUniforms);
glGetInteger(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, intBuf16);
fragUniforms = intBuf16.get(0);
logger.log(Level.FINER, "Fragment Uniforms: {0}", fragUniforms);
glGetInteger(GL_MAX_VERTEX_ATTRIBS, intBuf16);
vertexAttribs = intBuf16.get(0);
logger.log(Level.FINER, "Vertex Attributes: {0}", vertexAttribs);
glGetInteger(GL_SUBPIXEL_BITS, intBuf16);
int subpixelBits = intBuf16.get(0);
logger.log(Level.FINER, "Subpixel Bits: {0}", subpixelBits);
glGetInteger(GL_MAX_ELEMENTS_VERTICES, intBuf16);
maxVertCount = intBuf16.get(0);
logger.log(Level.FINER, "Preferred Batch Vertex Count: {0}", maxVertCount);
glGetInteger(GL_MAX_ELEMENTS_INDICES, intBuf16);
maxTriCount = intBuf16.get(0);
logger.log(Level.FINER, "Preferred Batch Index Count: {0}", maxTriCount);
glGetInteger(GL_MAX_TEXTURE_SIZE, intBuf16);
maxTexSize = intBuf16.get(0);
logger.log(Level.FINER, "Maximum Texture Resolution: {0}", maxTexSize);
glGetInteger(GL_MAX_CUBE_MAP_TEXTURE_SIZE, intBuf16);
maxCubeTexSize = intBuf16.get(0);
logger.log(Level.FINER, "Maximum CubeMap Resolution: {0}", maxCubeTexSize);
if (ctxCaps.GL_ARB_color_buffer_float) {
// XXX: Require both 16 and 32 bit float support for FloatColorBuffer.
if (ctxCaps.GL_ARB_half_float_pixel) {
caps.add(Caps.FloatColorBuffer);
}
}
if (ctxCaps.GL_ARB_depth_buffer_float) {
caps.add(Caps.FloatDepthBuffer);
}
if (ctxCaps.OpenGL30) {
caps.add(Caps.PackedDepthStencilBuffer);
}
if (ctxCaps.GL_ARB_draw_instanced) {
caps.add(Caps.MeshInstancing);
}
if (ctxCaps.GL_ARB_fragment_program) {
caps.add(Caps.ARBprogram);
}
if (ctxCaps.GL_ARB_texture_buffer_object) {
caps.add(Caps.TextureBuffer);
}
if (ctxCaps.GL_ARB_texture_float) {
if (ctxCaps.GL_ARB_half_float_pixel) {
caps.add(Caps.FloatTexture);
}
}
if (ctxCaps.GL_ARB_vertex_array_object) {
caps.add(Caps.VertexBufferArray);
}
if (ctxCaps.GL_ARB_texture_non_power_of_two) {
caps.add(Caps.NonPowerOfTwoTextures);
} else {
logger.log(Level.WARNING, "Your graphics card does not "
+ "support non-power-of-2 textures. "
+ "Some features might not work.");
}
boolean latc = ctxCaps.GL_EXT_texture_compression_latc;
if (latc) {
caps.add(Caps.TextureCompressionLATC);
}
if (ctxCaps.GL_EXT_packed_float) {
caps.add(Caps.PackedFloatColorBuffer);
if (ctxCaps.GL_ARB_half_float_pixel) {
// because textures are usually uploaded as RGB16F
// need half-float pixel
caps.add(Caps.PackedFloatTexture);
}
}
if (ctxCaps.GL_EXT_texture_array || ctxCaps.OpenGL30) {
caps.add(Caps.TextureArray);
}
if (ctxCaps.GL_EXT_texture_shared_exponent) {
caps.add(Caps.SharedExponentTexture);
}
if (ctxCaps.GL_EXT_framebuffer_object) {
caps.add(Caps.FrameBuffer);
glGetInteger(GL_MAX_RENDERBUFFER_SIZE_EXT, intBuf16);
maxRBSize = intBuf16.get(0);
logger.log(Level.FINER, "FBO RB Max Size: {0}", maxRBSize);
glGetInteger(GL_MAX_COLOR_ATTACHMENTS_EXT, intBuf16);
maxFBOAttachs = intBuf16.get(0);
logger.log(Level.FINER, "FBO Max renderbuffers: {0}", maxFBOAttachs);
if (ctxCaps.GL_EXT_framebuffer_multisample) {
caps.add(Caps.FrameBufferMultisample);
glGetInteger(GL_MAX_SAMPLES_EXT, intBuf16);
maxFBOSamples = intBuf16.get(0);
logger.log(Level.FINER, "FBO Max Samples: {0}", maxFBOSamples);
}
if (ctxCaps.GL_ARB_texture_multisample) {
caps.add(Caps.TextureMultisample);
glGetInteger(GL_MAX_COLOR_TEXTURE_SAMPLES, intBuf16);
maxColorTexSamples = intBuf16.get(0);
logger.log(Level.FINER, "Texture Multisample Color Samples: {0}", maxColorTexSamples);
glGetInteger(GL_MAX_DEPTH_TEXTURE_SAMPLES, intBuf16);
maxDepthTexSamples = intBuf16.get(0);
logger.log(Level.FINER, "Texture Multisample Depth Samples: {0}", maxDepthTexSamples);
}
glGetInteger(GL_MAX_DRAW_BUFFERS, intBuf16);
maxMRTFBOAttachs = intBuf16.get(0);
if (maxMRTFBOAttachs > 1) {
caps.add(Caps.FrameBufferMRT);
logger.log(Level.FINER, "FBO Max MRT renderbuffers: {0}", maxMRTFBOAttachs);
}
// if (ctxCaps.GL_ARB_draw_buffers) {
// caps.add(Caps.FrameBufferMRT);
// glGetInteger(ARBDrawBuffers.GL_MAX_DRAW_BUFFERS_ARB, intBuf16);
// maxMRTFBOAttachs = intBuf16.get(0);
// logger.log(Level.FINER, "FBO Max MRT renderbuffers: {0}", maxMRTFBOAttachs);
//}
}
if (ctxCaps.GL_ARB_multisample) {
glGetInteger(ARBMultisample.GL_SAMPLE_BUFFERS_ARB, intBuf16);
boolean available = intBuf16.get(0) != 0;
glGetInteger(ARBMultisample.GL_SAMPLES_ARB, intBuf16);
int samples = intBuf16.get(0);
logger.log(Level.FINER, "Samples: {0}", samples);
boolean enabled = glIsEnabled(ARBMultisample.GL_MULTISAMPLE_ARB);
if (samples > 0 && available && !enabled) {
glEnable(ARBMultisample.GL_MULTISAMPLE_ARB);
}
caps.add(Caps.Multisample);
}
logger.log(Level.FINE, "Caps: {0}", caps);
}
public void invalidateState() {
context.reset();
boundShader = null;
lastFb = null;
initialDrawBuf = glGetInteger(GL_DRAW_BUFFER);
initialReadBuf = glGetInteger(GL_READ_BUFFER);
}
public void resetGLObjects() {
logger.log(Level.FINE, "Reseting objects and invalidating state");
objManager.resetObjects();
statistics.clearMemory();
invalidateState();
}
public void cleanup() {
logger.log(Level.FINE, "Deleting objects and invalidating state");
objManager.deleteAllObjects(this);
statistics.clearMemory();
invalidateState();
}
private void checkCap(Caps cap) {
if (!caps.contains(cap)) {
throw new UnsupportedOperationException("Required capability missing: " + cap.name());
}
}
/*********************************************************************\
|* Render State *|
\*********************************************************************/
public void setDepthRange(float start, float end) {
glDepthRange(start, end);
}
public void clearBuffers(boolean color, boolean depth, boolean stencil) {
int bits = 0;
if (color) {
//See explanations of the depth below, we must enable color write to be able to clear the color buffer
if (context.colorWriteEnabled == false) {
glColorMask(true, true, true, true);
context.colorWriteEnabled = true;
}
bits = GL_COLOR_BUFFER_BIT;
}
if (depth) {
//glClear(GL_DEPTH_BUFFER_BIT) seems to not work when glDepthMask is false
//here s some link on openl board
//http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=257223
//if depth clear is requested, we enable the depthMask
if (context.depthWriteEnabled == false) {
glDepthMask(true);
context.depthWriteEnabled = true;
}
bits |= GL_DEPTH_BUFFER_BIT;
}
if (stencil) {
bits |= GL_STENCIL_BUFFER_BIT;
}
if (bits != 0) {
glClear(bits);
}
}
public void setBackgroundColor(ColorRGBA color) {
glClearColor(color.r, color.g, color.b, color.a);
}
public void setAlphaToCoverage(boolean value) {
if (caps.contains(Caps.Multisample)) {
if (value) {
glEnable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
} else {
glDisable(ARBMultisample.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
}
}
}
public void applyRenderState(RenderState state) {
if (state.isWireframe() && !context.wireframe) {
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
context.wireframe = true;
} else if (!state.isWireframe() && context.wireframe) {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
context.wireframe = false;
}
if (state.isDepthTest() && !context.depthTestEnabled) {
glEnable(GL_DEPTH_TEST);
glDepthFunc(convertTestFunction(context.depthFunc));
context.depthTestEnabled = true;
} else if (!state.isDepthTest() && context.depthTestEnabled) {
glDisable(GL_DEPTH_TEST);
context.depthTestEnabled = false;
}
if (state.getDepthFunc() != context.depthFunc) {
glDepthFunc(convertTestFunction(state.getDepthFunc()));
context.depthFunc = state.getDepthFunc();
}
if (state.isAlphaTest() && !context.alphaTestEnabled) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(convertTestFunction(context.alphaFunc), context.alphaTestFallOff);
context.alphaTestEnabled = true;
} else if (!state.isAlphaTest() && context.alphaTestEnabled) {
glDisable(GL_ALPHA_TEST);
context.alphaTestEnabled = false;
}
if (state.getAlphaFallOff() != context.alphaTestFallOff) {
glAlphaFunc(convertTestFunction(context.alphaFunc), context.alphaTestFallOff);
context.alphaTestFallOff = state.getAlphaFallOff();
}
if (state.getAlphaFunc() != context.alphaFunc) {
glAlphaFunc(convertTestFunction(state.getAlphaFunc()), context.alphaTestFallOff);
context.alphaFunc = state.getAlphaFunc();
}
if (state.isDepthWrite() && !context.depthWriteEnabled) {
glDepthMask(true);
context.depthWriteEnabled = true;
} else if (!state.isDepthWrite() && context.depthWriteEnabled) {
glDepthMask(false);
context.depthWriteEnabled = false;
}
if (state.isColorWrite() && !context.colorWriteEnabled) {
glColorMask(true, true, true, true);
context.colorWriteEnabled = true;
} else if (!state.isColorWrite() && context.colorWriteEnabled) {
glColorMask(false, false, false, false);
context.colorWriteEnabled = false;
}
if (state.isPointSprite() && !context.pointSprite) {
// Only enable/disable sprite
if (context.boundTextures[0] != null) {
if (context.boundTextureUnit != 0) {
glActiveTexture(GL_TEXTURE0);
context.boundTextureUnit = 0;
}
glEnable(GL_POINT_SPRITE);
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
}
context.pointSprite = true;
} else if (!state.isPointSprite() && context.pointSprite) {
if (context.boundTextures[0] != null) {
if (context.boundTextureUnit != 0) {
glActiveTexture(GL_TEXTURE0);
context.boundTextureUnit = 0;
}
glDisable(GL_POINT_SPRITE);
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
context.pointSprite = false;
}
}
if (state.isPolyOffset()) {
if (!context.polyOffsetEnabled) {
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(state.getPolyOffsetFactor(),
state.getPolyOffsetUnits());
context.polyOffsetEnabled = true;
context.polyOffsetFactor = state.getPolyOffsetFactor();
context.polyOffsetUnits = state.getPolyOffsetUnits();
} else {
if (state.getPolyOffsetFactor() != context.polyOffsetFactor
|| state.getPolyOffsetUnits() != context.polyOffsetUnits) {
glPolygonOffset(state.getPolyOffsetFactor(),
state.getPolyOffsetUnits());
context.polyOffsetFactor = state.getPolyOffsetFactor();
context.polyOffsetUnits = state.getPolyOffsetUnits();
}
}
} else {
if (context.polyOffsetEnabled) {
glDisable(GL_POLYGON_OFFSET_FILL);
context.polyOffsetEnabled = false;
context.polyOffsetFactor = 0;
context.polyOffsetUnits = 0;
}
}
if (state.getFaceCullMode() != context.cullMode) {
if (state.getFaceCullMode() == RenderState.FaceCullMode.Off) {
glDisable(GL_CULL_FACE);
} else {
glEnable(GL_CULL_FACE);
}
switch (state.getFaceCullMode()) {
case Off:
break;
case Back:
glCullFace(GL_BACK);
break;
case Front:
glCullFace(GL_FRONT);
break;
case FrontAndBack:
glCullFace(GL_FRONT_AND_BACK);
break;
default:
throw new UnsupportedOperationException("Unrecognized face cull mode: "
+ state.getFaceCullMode());
}
context.cullMode = state.getFaceCullMode();
}
if (state.getBlendMode() != context.blendMode) {
if (state.getBlendMode() == RenderState.BlendMode.Off) {
glDisable(GL_BLEND);
} else {
glEnable(GL_BLEND);
switch (state.getBlendMode()) {
case Off:
break;
case Additive:
glBlendFunc(GL_ONE, GL_ONE);
break;
case AlphaAdditive:
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
break;
case Color:
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_COLOR);
break;
case Alpha:
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
case PremultAlpha:
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
break;
case Modulate:
glBlendFunc(GL_DST_COLOR, GL_ZERO);
break;
case ModulateX2:
glBlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
break;
default:
throw new UnsupportedOperationException("Unrecognized blend mode: "
+ state.getBlendMode());
}
}
context.blendMode = state.getBlendMode();
}
if (context.stencilTest != state.isStencilTest()
|| context.frontStencilStencilFailOperation != state.getFrontStencilStencilFailOperation()
|| context.frontStencilDepthFailOperation != state.getFrontStencilDepthFailOperation()
|| context.frontStencilDepthPassOperation != state.getFrontStencilDepthPassOperation()
|| context.backStencilStencilFailOperation != state.getBackStencilStencilFailOperation()
|| context.backStencilDepthFailOperation != state.getBackStencilDepthFailOperation()
|| context.backStencilDepthPassOperation != state.getBackStencilDepthPassOperation()
|| context.frontStencilFunction != state.getFrontStencilFunction()
|| context.backStencilFunction != state.getBackStencilFunction()) {
context.frontStencilStencilFailOperation = state.getFrontStencilStencilFailOperation(); //terrible looking, I know
context.frontStencilDepthFailOperation = state.getFrontStencilDepthFailOperation();
context.frontStencilDepthPassOperation = state.getFrontStencilDepthPassOperation();
context.backStencilStencilFailOperation = state.getBackStencilStencilFailOperation();
context.backStencilDepthFailOperation = state.getBackStencilDepthFailOperation();
context.backStencilDepthPassOperation = state.getBackStencilDepthPassOperation();
context.frontStencilFunction = state.getFrontStencilFunction();
context.backStencilFunction = state.getBackStencilFunction();
if (state.isStencilTest()) {
glEnable(GL_STENCIL_TEST);
glStencilOpSeparate(GL_FRONT,
convertStencilOperation(state.getFrontStencilStencilFailOperation()),
convertStencilOperation(state.getFrontStencilDepthFailOperation()),
convertStencilOperation(state.getFrontStencilDepthPassOperation()));
glStencilOpSeparate(GL_BACK,
convertStencilOperation(state.getBackStencilStencilFailOperation()),
convertStencilOperation(state.getBackStencilDepthFailOperation()),
convertStencilOperation(state.getBackStencilDepthPassOperation()));
glStencilFuncSeparate(GL_FRONT,
convertTestFunction(state.getFrontStencilFunction()),
0, Integer.MAX_VALUE);
glStencilFuncSeparate(GL_BACK,
convertTestFunction(state.getBackStencilFunction()),
0, Integer.MAX_VALUE);
} else {
glDisable(GL_STENCIL_TEST);
}
}
}
private int convertStencilOperation(StencilOperation stencilOp) {
switch (stencilOp) {
case Keep:
return GL_KEEP;
case Zero:
return GL_ZERO;
case Replace:
return GL_REPLACE;
case Increment:
return GL_INCR;
case IncrementWrap:
return GL_INCR_WRAP;
case Decrement:
return GL_DECR;
case DecrementWrap:
return GL_DECR_WRAP;
case Invert:
return GL_INVERT;
default:
throw new UnsupportedOperationException("Unrecognized stencil operation: " + stencilOp);
}
}
private int convertTestFunction(TestFunction testFunc) {
switch (testFunc) {
case Never:
return GL_NEVER;
case Less:
return GL_LESS;
case LessOrEqual:
return GL_LEQUAL;
case Greater:
return GL_GREATER;
case GreaterOrEqual:
return GL_GEQUAL;
case Equal:
return GL_EQUAL;
case NotEqual:
return GL_NOTEQUAL;
case Always:
return GL_ALWAYS;
default:
throw new UnsupportedOperationException("Unrecognized test function: " + testFunc);
}
}
/*********************************************************************\
|* Camera and World transforms *|
\*********************************************************************/
public void setViewPort(int x, int y, int w, int h) {
if (x != vpX || vpY != y || vpW != w || vpH != h) {
glViewport(x, y, w, h);
vpX = x;
vpY = y;
vpW = w;
vpH = h;
}
}
public void setClipRect(int x, int y, int width, int height) {
if (!context.clipRectEnabled) {
glEnable(GL_SCISSOR_TEST);
context.clipRectEnabled = true;
}
if (clipX != x || clipY != y || clipW != width || clipH != height) {
glScissor(x, y, width, height);
clipX = x;
clipY = y;
clipW = width;
clipH = height;
}
}
public void clearClipRect() {
if (context.clipRectEnabled) {
glDisable(GL_SCISSOR_TEST);
context.clipRectEnabled = false;
clipX = 0;
clipY = 0;
clipW = 0;
clipH = 0;
}
}
public void onFrame() {
objManager.deleteUnused(this);
// statistics.clearFrame();
}
public void setWorldMatrix(Matrix4f worldMatrix) {
}
public void setViewProjectionMatrices(Matrix4f viewMatrix, Matrix4f projMatrix) {
}
/*********************************************************************\
|* Shaders *|
\*********************************************************************/
protected void updateUniformLocation(Shader shader, Uniform uniform) {
stringBuf.setLength(0);
stringBuf.append(uniform.getName()).append('\0');
updateNameBuffer();
int loc = glGetUniformLocation(shader.getId(), nameBuf);
if (loc < 0) {
uniform.setLocation(-1);
// uniform is not declared in shader
logger.log(Level.FINE, "Uniform {0} is not declared in shader {1}.", new Object[]{uniform.getName(), shader.getSources()});
} else {
uniform.setLocation(loc);
}
}
protected void bindProgram(Shader shader) {
int shaderId = shader.getId();
if (context.boundShaderProgram != shaderId) {
glUseProgram(shaderId);
statistics.onShaderUse(shader, true);
boundShader = shader;
context.boundShaderProgram = shaderId;
} else {
statistics.onShaderUse(shader, false);
}
}
protected void updateUniform(Shader shader, Uniform uniform) {
int shaderId = shader.getId();
assert uniform.getName() != null;
assert shader.getId() > 0;
bindProgram(shader);
int loc = uniform.getLocation();
if (loc == -1) {
return;
}
if (loc == -2) {
// get uniform location
updateUniformLocation(shader, uniform);
if (uniform.getLocation() == -1) {
// not declared, ignore
uniform.clearUpdateNeeded();
return;
}
loc = uniform.getLocation();
}
if (uniform.getVarType() == null) {
return; // value not set yet..
}
statistics.onUniformSet();
uniform.clearUpdateNeeded();
FloatBuffer fb;
IntBuffer ib;
switch (uniform.getVarType()) {
case Float:
Float f = (Float) uniform.getValue();
glUniform1f(loc, f.floatValue());
break;
case Vector2:
Vector2f v2 = (Vector2f) uniform.getValue();
glUniform2f(loc, v2.getX(), v2.getY());
break;
case Vector3:
Vector3f v3 = (Vector3f) uniform.getValue();
glUniform3f(loc, v3.getX(), v3.getY(), v3.getZ());
break;
case Vector4:
Object val = uniform.getValue();
if (val instanceof ColorRGBA) {
ColorRGBA c = (ColorRGBA) val;
glUniform4f(loc, c.r, c.g, c.b, c.a);
} else if (val instanceof Vector4f) {
Vector4f c = (Vector4f) val;
glUniform4f(loc, c.x, c.y, c.z, c.w);
} else {
Quaternion c = (Quaternion) uniform.getValue();
glUniform4f(loc, c.getX(), c.getY(), c.getZ(), c.getW());
}
break;
case Boolean:
Boolean b = (Boolean) uniform.getValue();
glUniform1i(loc, b.booleanValue() ? GL_TRUE : GL_FALSE);
break;
case Matrix3:
fb = (FloatBuffer) uniform.getValue();
assert fb.remaining() == 9;
glUniformMatrix3(loc, false, fb);
break;
case Matrix4:
fb = (FloatBuffer) uniform.getValue();
assert fb.remaining() == 16;
glUniformMatrix4(loc, false, fb);
break;
case IntArray:
ib = (IntBuffer) uniform.getValue();
glUniform1(loc, ib);
break;
case FloatArray:
fb = (FloatBuffer) uniform.getValue();
glUniform1(loc, fb);
break;
case Vector2Array:
fb = (FloatBuffer) uniform.getValue();
glUniform2(loc, fb);
break;
case Vector3Array:
fb = (FloatBuffer) uniform.getValue();
glUniform3(loc, fb);
break;
case Vector4Array:
fb = (FloatBuffer) uniform.getValue();
glUniform4(loc, fb);
break;
case Matrix4Array:
fb = (FloatBuffer) uniform.getValue();
glUniformMatrix4(loc, false, fb);
break;
case Int:
Integer i = (Integer) uniform.getValue();
glUniform1i(loc, i.intValue());
break;
default:
throw new UnsupportedOperationException("Unsupported uniform type: " + uniform.getVarType());
}
}
protected void updateShaderUniforms(Shader shader) {
ListMap<String, Uniform> uniforms = shader.getUniformMap();
for (int i = 0; i < uniforms.size(); i++) {
Uniform uniform = uniforms.getValue(i);
if (uniform.isUpdateNeeded()) {
updateUniform(shader, uniform);
}
}
}
protected void resetUniformLocations(Shader shader) {
ListMap<String, Uniform> uniforms = shader.getUniformMap();
for (int i = 0; i < uniforms.size(); i++) {
Uniform uniform = uniforms.getValue(i);
uniform.reset(); // e.g check location again
}
}
/*
* (Non-javadoc)
* Only used for fixed-function. Ignored.
*/
public void setLighting(LightList list) {
}
public int convertShaderType(ShaderType type) {
switch (type) {
case Fragment:
return GL_FRAGMENT_SHADER;
case Vertex:
return GL_VERTEX_SHADER;
// case Geometry:
// return ARBGeometryShader4.GL_GEOMETRY_SHADER_ARB;
default:
throw new UnsupportedOperationException("Unrecognized shader type.");
}
}
public void updateShaderSourceData(ShaderSource source) {
int id = source.getId();
if (id == -1) {
// Create id
id = glCreateShader(convertShaderType(source.getType()));
if (id <= 0) {
throw new RendererException("Invalid ID received when trying to create shader.");
}
source.setId(id);
} else {
throw new RendererException("Cannot recompile shader source");
}
// Upload shader source.
// Merge the defines and source code.
String language = source.getLanguage();
stringBuf.setLength(0);
if (language.startsWith("GLSL")) {
int version = Integer.parseInt(language.substring(4));
if (version > 100) {
stringBuf.append("#version ");
stringBuf.append(language.substring(4));
if (version >= 150) {
stringBuf.append(" core");
}
stringBuf.append("\n");
}
}
updateNameBuffer();
byte[] definesCodeData = source.getDefines().getBytes();
byte[] sourceCodeData = source.getSource().getBytes();
ByteBuffer codeBuf = BufferUtils.createByteBuffer(nameBuf.limit()
+ definesCodeData.length
+ sourceCodeData.length);
codeBuf.put(nameBuf);
codeBuf.put(definesCodeData);
codeBuf.put(sourceCodeData);
codeBuf.flip();
glShaderSource(id, codeBuf);
glCompileShader(id);
glGetShader(id, GL_COMPILE_STATUS, intBuf1);
boolean compiledOK = intBuf1.get(0) == GL_TRUE;
String infoLog = null;
if (VALIDATE_SHADER || !compiledOK) {
// even if compile succeeded, check
// log for warnings
glGetShader(id, GL_INFO_LOG_LENGTH, intBuf1);
int length = intBuf1.get(0);
if (length > 3) {
// get infos
ByteBuffer logBuf = BufferUtils.createByteBuffer(length);
glGetShaderInfoLog(id, null, logBuf);
byte[] logBytes = new byte[length];
logBuf.get(logBytes, 0, length);
// convert to string, etc
infoLog = new String(logBytes);
}
}
if (compiledOK) {
if (infoLog != null) {
logger.log(Level.FINE, "{0} compile success\n{1}",
new Object[]{source.getName(), infoLog});
} else {
logger.log(Level.FINE, "{0} compile success", source.getName());
}
source.clearUpdateNeeded();
} else {
logger.log(Level.WARNING, "Bad compile of:\n{0}",
new Object[]{ShaderDebug.formatShaderSource(source.getDefines(), source.getSource(), stringBuf.toString())});
if (infoLog != null) {
throw new RendererException("compile error in:" + source + " error:" + infoLog);
} else {
throw new RendererException("compile error in:" + source + " error: <not provided>");
}
}
}
public void updateShaderData(Shader shader) {
int id = shader.getId();
boolean needRegister = false;
if (id == -1) {
// create program
id = glCreateProgram();
if (id == 0) {
throw new RendererException("Invalid ID (" + id + ") received when trying to create shader program.");
}
shader.setId(id);
needRegister = true;
}
for (ShaderSource source : shader.getSources()) {
if (source.isUpdateNeeded()) {
updateShaderSourceData(source);
}
glAttachShader(id, source.getId());
}
if (caps.contains(Caps.OpenGL30)) {
// Check if GLSL version is 1.5 for shader
GL30.glBindFragDataLocation(id, 0, "outFragColor");
// For MRT
for (int i = 0; i < maxMRTFBOAttachs; i++) {
GL30.glBindFragDataLocation(id, i, "outFragData[" + i + "]");
}
}
// Link shaders to program
glLinkProgram(id);
// Check link status
glGetProgram(id, GL_LINK_STATUS, intBuf1);
boolean linkOK = intBuf1.get(0) == GL_TRUE;
String infoLog = null;
if (VALIDATE_SHADER || !linkOK) {
glGetProgram(id, GL_INFO_LOG_LENGTH, intBuf1);
int length = intBuf1.get(0);
if (length > 3) {
// get infos
ByteBuffer logBuf = BufferUtils.createByteBuffer(length);
glGetProgramInfoLog(id, null, logBuf);
// convert to string, etc
byte[] logBytes = new byte[length];
logBuf.get(logBytes, 0, length);
infoLog = new String(logBytes);
}
}
if (linkOK) {
if (infoLog != null) {
logger.log(Level.FINE, "shader link success. \n{0}", infoLog);
} else {
logger.fine("shader link success");
}
shader.clearUpdateNeeded();
if (needRegister) {
// Register shader for clean up if it was created in this method.
objManager.registerObject(shader);
statistics.onNewShader();
} else {
// OpenGL spec: uniform locations may change after re-link
resetUniformLocations(shader);
}
} else {
if (infoLog != null) {
throw new RendererException("Shader link failure, shader:" + shader + " info:" + infoLog);
} else {
throw new RendererException("Shader link failure, shader:" + shader + " info: <not provided>");
}
}
}
public void setShader(Shader shader) {
if (shader == null) {
throw new IllegalArgumentException("Shader cannot be null");
} else {
if (shader.isUpdateNeeded()) {
updateShaderData(shader);
}
// NOTE: might want to check if any of the
// sources need an update?
assert shader.getId() > 0;
updateShaderUniforms(shader);
bindProgram(shader);
}
}
public void deleteShaderSource(ShaderSource source) {
if (source.getId() < 0) {
logger.warning("Shader source is not uploaded to GPU, cannot delete.");
return;
}
source.clearUpdateNeeded();
glDeleteShader(source.getId());
source.resetObject();
}
public void deleteShader(Shader shader) {
if (shader.getId() == -1) {
logger.warning("Shader is not uploaded to GPU, cannot delete.");
return;
}
for (ShaderSource source : shader.getSources()) {
if (source.getId() != -1) {
glDetachShader(shader.getId(), source.getId());
deleteShaderSource(source);
}
}
glDeleteProgram(shader.getId());
statistics.onDeleteShader();
shader.resetObject();
}
/*********************************************************************\
|* Framebuffers *|
\*********************************************************************/
public void copyFrameBuffer(FrameBuffer src, FrameBuffer dst) {
copyFrameBuffer(src, dst, true);
}
public void copyFrameBuffer(FrameBuffer src, FrameBuffer dst, boolean copyDepth) {
if (GLContext.getCapabilities().GL_EXT_framebuffer_blit) {
int srcX0 = 0;
int srcY0 = 0;
int srcX1;
int srcY1;
int dstX0 = 0;
int dstY0 = 0;
int dstX1;
int dstY1;
int prevFBO = context.boundFBO;
if (mainFbOverride != null) {
if (src == null) {
src = mainFbOverride;
}
if (dst == null) {
dst = mainFbOverride;
}
}
if (src != null && src.isUpdateNeeded()) {
updateFrameBuffer(src);
}
if (dst != null && dst.isUpdateNeeded()) {
updateFrameBuffer(dst);
}
if (src == null) {
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
srcX0 = vpX;
srcY0 = vpY;
srcX1 = vpX + vpW;
srcY1 = vpY + vpH;
} else {
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, src.getId());
srcX1 = src.getWidth();
srcY1 = src.getHeight();
}
if (dst == null) {
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
dstX0 = vpX;
dstY0 = vpY;
dstX1 = vpX + vpW;
dstY1 = vpY + vpH;
} else {
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, dst.getId());
dstX1 = dst.getWidth();
dstY1 = dst.getHeight();
}
int mask = GL_COLOR_BUFFER_BIT;
if (copyDepth) {
mask |= GL_DEPTH_BUFFER_BIT;
}
glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1, mask,
GL_NEAREST);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, prevFBO);
try {
checkFrameBufferError();
} catch (IllegalStateException ex) {
logger.log(Level.SEVERE, "Source FBO:\n{0}", src);
logger.log(Level.SEVERE, "Dest FBO:\n{0}", dst);
throw ex;
}
} else {
throw new RendererException("EXT_framebuffer_blit required.");
// TODO: support non-blit copies?
}
}
private String getTargetBufferName(int buffer) {
switch (buffer) {
case GL_NONE:
return "NONE";
case GL_FRONT:
return "GL_FRONT";
case GL_BACK:
return "GL_BACK";
default:
if (buffer >= GL_COLOR_ATTACHMENT0_EXT
&& buffer <= GL_COLOR_ATTACHMENT15_EXT) {
return "GL_COLOR_ATTACHMENT"
+ (buffer - GL_COLOR_ATTACHMENT0_EXT);
} else {
return "UNKNOWN? " + buffer;
}
}
}
private void printRealRenderBufferInfo(FrameBuffer fb, RenderBuffer rb, String name) {
System.out.println("== Renderbuffer " + name + " ==");
System.out.println("RB ID: " + rb.getId());
System.out.println("Is proper? " + glIsRenderbufferEXT(rb.getId()));
int attachment = convertAttachmentSlot(rb.getSlot());
int type = glGetFramebufferAttachmentParameterEXT(GL_DRAW_FRAMEBUFFER_EXT,
attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT);
int rbName = glGetFramebufferAttachmentParameterEXT(GL_DRAW_FRAMEBUFFER_EXT,
attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT);
switch (type) {
case GL_NONE:
System.out.println("Type: None");
break;
case GL_TEXTURE:
System.out.println("Type: Texture");
break;
case GL_RENDERBUFFER_EXT:
System.out.println("Type: Buffer");
System.out.println("RB ID: " + rbName);
break;
}
}
private void printRealFrameBufferInfo(FrameBuffer fb) {
boolean doubleBuffer = glGetBoolean(GL_DOUBLEBUFFER);
String drawBuf = getTargetBufferName(glGetInteger(GL_DRAW_BUFFER));
String readBuf = getTargetBufferName(glGetInteger(GL_READ_BUFFER));
int fbId = fb.getId();
int curDrawBinding = glGetInteger(ARBFramebufferObject.GL_DRAW_FRAMEBUFFER_BINDING);
int curReadBinding = glGetInteger(ARBFramebufferObject.GL_READ_FRAMEBUFFER_BINDING);
System.out.println("=== OpenGL FBO State ===");
System.out.println("Context doublebuffered? " + doubleBuffer);
System.out.println("FBO ID: " + fbId);
System.out.println("Is proper? " + glIsFramebufferEXT(fbId));
System.out.println("Is bound to draw? " + (fbId == curDrawBinding));
System.out.println("Is bound to read? " + (fbId == curReadBinding));
System.out.println("Draw buffer: " + drawBuf);
System.out.println("Read buffer: " + readBuf);
if (context.boundFBO != fbId) {
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, fbId);
context.boundFBO = fbId;
}
if (fb.getDepthBuffer() != null) {
printRealRenderBufferInfo(fb, fb.getDepthBuffer(), "Depth");
}
for (int i = 0; i < fb.getNumColorBuffers(); i++) {
printRealRenderBufferInfo(fb, fb.getColorBuffer(i), "Color" + i);
}
}
private void checkFrameBufferError() {
int status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
switch (status) {
case GL_FRAMEBUFFER_COMPLETE_EXT:
break;
case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
//Choose different formats
throw new IllegalStateException("Framebuffer object format is "
+ "unsupported by the video hardware.");
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
throw new IllegalStateException("Framebuffer has erronous attachment.");
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
throw new IllegalStateException("Framebuffer doesn't have any renderbuffers attached.");
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
throw new IllegalStateException("Framebuffer attachments must have same dimensions.");
case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
throw new IllegalStateException("Framebuffer attachments must have same formats.");
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
throw new IllegalStateException("Incomplete draw buffer.");
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
throw new IllegalStateException("Incomplete read buffer.");
case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT:
throw new IllegalStateException("Incomplete multisample buffer.");
default:
//Programming error; will fail on all hardware
throw new IllegalStateException("Some video driver error "
+ "or programming error occured. "
+ "Framebuffer object status is invalid. ");
}
}
private void updateRenderBuffer(FrameBuffer fb, RenderBuffer rb) {
int id = rb.getId();
if (id == -1) {
glGenRenderbuffersEXT(intBuf1);
id = intBuf1.get(0);
rb.setId(id);
}
if (context.boundRB != id) {
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, id);
context.boundRB = id;
}
if (fb.getWidth() > maxRBSize || fb.getHeight() > maxRBSize) {
throw new RendererException("Resolution " + fb.getWidth()
+ ":" + fb.getHeight() + " is not supported.");
}
TextureUtil.GLImageFormat glFmt = TextureUtil.getImageFormatWithError(rb.getFormat());
if (fb.getSamples() > 1 && GLContext.getCapabilities().GL_EXT_framebuffer_multisample) {
int samples = fb.getSamples();
if (maxFBOSamples < samples) {
samples = maxFBOSamples;
}
glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT,
samples,
glFmt.internalFormat,
fb.getWidth(),
fb.getHeight());
} else {
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
glFmt.internalFormat,
fb.getWidth(),
fb.getHeight());
}
}
private int convertAttachmentSlot(int attachmentSlot) {
// can also add support for stencil here
if (attachmentSlot == -100) {
return GL_DEPTH_ATTACHMENT_EXT;
} else if (attachmentSlot < 0 || attachmentSlot >= 16) {
throw new UnsupportedOperationException("Invalid FBO attachment slot: " + attachmentSlot);
}
return GL_COLOR_ATTACHMENT0_EXT + attachmentSlot;
}
public void updateRenderTexture(FrameBuffer fb, RenderBuffer rb) {
Texture tex = rb.getTexture();
Image image = tex.getImage();
if (image.isUpdateNeeded()) {
updateTexImageData(image, tex.getType(), 0);
// NOTE: For depth textures, sets nearest/no-mips mode
// Required to fix "framebuffer unsupported"
// for old NVIDIA drivers!
setupTextureParams(tex);
}
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
convertAttachmentSlot(rb.getSlot()),
convertTextureType(tex.getType(), image.getMultiSamples(), rb.getFace()),
image.getId(),
0);
}
public void updateFrameBufferAttachment(FrameBuffer fb, RenderBuffer rb) {
boolean needAttach;
if (rb.getTexture() == null) {
// if it hasn't been created yet, then attach is required.
needAttach = rb.getId() == -1;
updateRenderBuffer(fb, rb);
} else {
needAttach = false;
updateRenderTexture(fb, rb);
}
if (needAttach) {
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
convertAttachmentSlot(rb.getSlot()),
GL_RENDERBUFFER_EXT,
rb.getId());
}
}
public void updateFrameBuffer(FrameBuffer fb) {
int id = fb.getId();
if (id == -1) {
// create FBO
glGenFramebuffersEXT(intBuf1);
id = intBuf1.get(0);
fb.setId(id);
objManager.registerObject(fb);
statistics.onNewFrameBuffer();
}
if (context.boundFBO != id) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, id);
// binding an FBO automatically sets draw buf to GL_COLOR_ATTACHMENT0
context.boundDrawBuf = 0;
context.boundFBO = id;
}
FrameBuffer.RenderBuffer depthBuf = fb.getDepthBuffer();
if (depthBuf != null) {
updateFrameBufferAttachment(fb, depthBuf);
}
for (int i = 0; i < fb.getNumColorBuffers(); i++) {
FrameBuffer.RenderBuffer colorBuf = fb.getColorBuffer(i);
updateFrameBufferAttachment(fb, colorBuf);
}
fb.clearUpdateNeeded();
}
public Vector2f[] getFrameBufferSamplePositions(FrameBuffer fb) {
if (fb.getSamples() <= 1) {
throw new IllegalArgumentException("Framebuffer must be multisampled");
}
setFrameBuffer(fb);
Vector2f[] samplePositions = new Vector2f[fb.getSamples()];
FloatBuffer samplePos = BufferUtils.createFloatBuffer(2);
for (int i = 0; i < samplePositions.length; i++) {
glGetMultisample(GL_SAMPLE_POSITION, i, samplePos);
samplePos.clear();
samplePositions[i] = new Vector2f(samplePos.get(0) - 0.5f,
samplePos.get(1) - 0.5f);
}
return samplePositions;
}
public void setMainFrameBufferOverride(FrameBuffer fb) {
mainFbOverride = fb;
}
public void setFrameBuffer(FrameBuffer fb) {
if (fb == null && mainFbOverride != null) {
fb = mainFbOverride;
}
if (lastFb == fb) {
if (fb == null || !fb.isUpdateNeeded()) {
return;
}
}
// generate mipmaps for last FB if needed
if (lastFb != null) {
for (int i = 0; i < lastFb.getNumColorBuffers(); i++) {
RenderBuffer rb = lastFb.getColorBuffer(i);
Texture tex = rb.getTexture();
if (tex != null
&& tex.getMinFilter().usesMipMapLevels()) {
setTexture(0, rb.getTexture());
int textureType = convertTextureType(tex.getType(), tex.getImage().getMultiSamples(), rb.getFace());
glEnable(textureType);
glGenerateMipmapEXT(textureType);
glDisable(textureType);
}
}
}
if (fb == null) {
// unbind any fbos
if (context.boundFBO != 0) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
statistics.onFrameBufferUse(null, true);
context.boundFBO = 0;
}
// select back buffer
if (context.boundDrawBuf != -1) {
glDrawBuffer(initialDrawBuf);
context.boundDrawBuf = -1;
}
if (context.boundReadBuf != -1) {
glReadBuffer(initialReadBuf);
context.boundReadBuf = -1;
}
lastFb = null;
} else {
if (fb.getNumColorBuffers() == 0 && fb.getDepthBuffer() == null) {
throw new IllegalArgumentException("The framebuffer: " + fb
+ "\nDoesn't have any color/depth buffers");
}
if (fb.isUpdateNeeded()) {
updateFrameBuffer(fb);
}
if (context.boundFBO != fb.getId()) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb.getId());
statistics.onFrameBufferUse(fb, true);
// update viewport to reflect framebuffer's resolution
setViewPort(0, 0, fb.getWidth(), fb.getHeight());
context.boundFBO = fb.getId();
} else {
statistics.onFrameBufferUse(fb, false);
}
if (fb.getNumColorBuffers() == 0) {
// make sure to select NONE as draw buf
// no color buffer attached. select NONE
if (context.boundDrawBuf != -2) {
glDrawBuffer(GL_NONE);
context.boundDrawBuf = -2;
}
if (context.boundReadBuf != -2) {
glReadBuffer(GL_NONE);
context.boundReadBuf = -2;
}
} else {
if (fb.getNumColorBuffers() > maxFBOAttachs) {
throw new RendererException("Framebuffer has more color "
+ "attachments than are supported"
+ " by the video hardware!");
}
if (fb.isMultiTarget()) {
if (fb.getNumColorBuffers() > maxMRTFBOAttachs) {
throw new RendererException("Framebuffer has more"
+ " multi targets than are supported"
+ " by the video hardware!");
}
if (context.boundDrawBuf != 100 + fb.getNumColorBuffers()) {
intBuf16.clear();
for (int i = 0; i < fb.getNumColorBuffers(); i++) {
intBuf16.put(GL_COLOR_ATTACHMENT0_EXT + i);
}
intBuf16.flip();
glDrawBuffers(intBuf16);
context.boundDrawBuf = 100 + fb.getNumColorBuffers();
}
} else {
RenderBuffer rb = fb.getColorBuffer(fb.getTargetIndex());
// select this draw buffer
if (context.boundDrawBuf != rb.getSlot()) {
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT + rb.getSlot());
context.boundDrawBuf = rb.getSlot();
}
}
}
assert fb.getId() >= 0;
assert context.boundFBO == fb.getId();
lastFb = fb;
try {
checkFrameBufferError();
} catch (IllegalStateException ex) {
logger.log(Level.SEVERE, "=== jMonkeyEngine FBO State ===\n{0}", fb);
printRealFrameBufferInfo(fb);
throw ex;
}
}
}
public void readFrameBuffer(FrameBuffer fb, ByteBuffer byteBuf) {
if (fb != null) {
RenderBuffer rb = fb.getColorBuffer();
if (rb == null) {
throw new IllegalArgumentException("Specified framebuffer"
+ " does not have a colorbuffer");
}
setFrameBuffer(fb);
if (context.boundReadBuf != rb.getSlot()) {
glReadBuffer(GL_COLOR_ATTACHMENT0_EXT + rb.getSlot());
context.boundReadBuf = rb.getSlot();
}
} else {
setFrameBuffer(null);
}
glReadPixels(vpX, vpY, vpW, vpH, /*GL_RGBA*/ GL_BGRA, GL_UNSIGNED_BYTE, byteBuf);
}
private void deleteRenderBuffer(FrameBuffer fb, RenderBuffer rb) {
intBuf1.put(0, rb.getId());
glDeleteRenderbuffersEXT(intBuf1);
}
public void deleteFrameBuffer(FrameBuffer fb) {
if (fb.getId() != -1) {
if (context.boundFBO == fb.getId()) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
context.boundFBO = 0;
}
if (fb.getDepthBuffer() != null) {
deleteRenderBuffer(fb, fb.getDepthBuffer());
}
if (fb.getColorBuffer() != null) {
deleteRenderBuffer(fb, fb.getColorBuffer());
}
intBuf1.put(0, fb.getId());
glDeleteFramebuffersEXT(intBuf1);
fb.resetObject();
statistics.onDeleteFrameBuffer();
}
}
/*********************************************************************\
|* Textures *|
\*********************************************************************/
private int convertTextureType(Texture.Type type, int samples, int face) {
switch (type) {
case TwoDimensional:
if (samples > 1) {
return ARBTextureMultisample.GL_TEXTURE_2D_MULTISAMPLE;
} else {
return GL_TEXTURE_2D;
}
case TwoDimensionalArray:
if (samples > 1) {
return ARBTextureMultisample.GL_TEXTURE_2D_MULTISAMPLE_ARRAY;
} else {
return EXTTextureArray.GL_TEXTURE_2D_ARRAY_EXT;
}
case ThreeDimensional:
return GL_TEXTURE_3D;
case CubeMap:
if (face < 0) {
return GL_TEXTURE_CUBE_MAP;
} else if (face < 6) {
return GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
} else {
throw new UnsupportedOperationException("Invalid cube map face index: " + face);
}
default:
throw new UnsupportedOperationException("Unknown texture type: " + type);
}
}
private int convertMagFilter(Texture.MagFilter filter) {
switch (filter) {
case Bilinear:
return GL_LINEAR;
case Nearest:
return GL_NEAREST;
default:
throw new UnsupportedOperationException("Unknown mag filter: " + filter);
}
}
private int convertMinFilter(Texture.MinFilter filter) {
switch (filter) {
case Trilinear:
return GL_LINEAR_MIPMAP_LINEAR;
case BilinearNearestMipMap:
return GL_LINEAR_MIPMAP_NEAREST;
case NearestLinearMipMap:
return GL_NEAREST_MIPMAP_LINEAR;
case NearestNearestMipMap:
return GL_NEAREST_MIPMAP_NEAREST;
case BilinearNoMipMaps:
return GL_LINEAR;
case NearestNoMipMaps:
return GL_NEAREST;
default:
throw new UnsupportedOperationException("Unknown min filter: " + filter);
}
}
private int convertWrapMode(Texture.WrapMode mode) {
switch (mode) {
case BorderClamp:
return GL_CLAMP_TO_BORDER;
case Clamp:
return GL_CLAMP;
case EdgeClamp:
return GL_CLAMP_TO_EDGE;
case Repeat:
return GL_REPEAT;
case MirroredRepeat:
return GL_MIRRORED_REPEAT;
default:
throw new UnsupportedOperationException("Unknown wrap mode: " + mode);
}
}
@SuppressWarnings("fallthrough")
private void setupTextureParams(Texture tex) {
Image image = tex.getImage();
int target = convertTextureType(tex.getType(), image != null ? image.getMultiSamples() : 1, -1);
// filter things
int minFilter = convertMinFilter(tex.getMinFilter());
int magFilter = convertMagFilter(tex.getMagFilter());
glTexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilter);
glTexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilter);
if (tex.getAnisotropicFilter() > 1) {
if (GLContext.getCapabilities().GL_EXT_texture_filter_anisotropic) {
glTexParameterf(target,
EXTTextureFilterAnisotropic.GL_TEXTURE_MAX_ANISOTROPY_EXT,
tex.getAnisotropicFilter());
}
}
if (context.pointSprite) {
return; // Attempt to fix glTexParameter crash for some ATI GPUs
}
// repeat modes
switch (tex.getType()) {
case ThreeDimensional:
case CubeMap: // cubemaps use 3D coords
glTexParameteri(target, GL_TEXTURE_WRAP_R, convertWrapMode(tex.getWrap(WrapAxis.R)));
//There is no break statement on purpose here
case TwoDimensional:
case TwoDimensionalArray:
glTexParameteri(target, GL_TEXTURE_WRAP_T, convertWrapMode(tex.getWrap(WrapAxis.T)));
// fall down here is intentional..
// case OneDimensional:
glTexParameteri(target, GL_TEXTURE_WRAP_S, convertWrapMode(tex.getWrap(WrapAxis.S)));
break;
default:
throw new UnsupportedOperationException("Unknown texture type: " + tex.getType());
}
if(tex.isNeedCompareModeUpdate()){
// R to Texture compare mode
if (tex.getShadowCompareMode() != Texture.ShadowCompareMode.Off) {
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
glTexParameteri(target, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
if (tex.getShadowCompareMode() == Texture.ShadowCompareMode.GreaterOrEqual) {
glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, GL_GEQUAL);
} else {
glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
}
}else{
//restoring default value
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_NONE);
}
tex.compareModeUpdated();
}
}
/**
* Uploads the given image to the GL driver.
*
* @param img The image to upload
* @param type How the data in the image argument should be interpreted.
* @param unit The texture slot to be used to upload the image, not important
*/
public void updateTexImageData(Image img, Texture.Type type, int unit) {
int texId = img.getId();
if (texId == -1) {
// create texture
glGenTextures(intBuf1);
texId = intBuf1.get(0);
img.setId(texId);
objManager.registerObject(img);
statistics.onNewTexture();
}
// bind texture
int target = convertTextureType(type, img.getMultiSamples(), -1);
if (context.boundTextureUnit != unit) {
glActiveTexture(GL_TEXTURE0 + unit);
context.boundTextureUnit = unit;
}
if (context.boundTextures[unit] != img) {
glBindTexture(target, texId);
context.boundTextures[unit] = img;
statistics.onTextureUse(img, true);
}
if (!img.hasMipmaps() && img.isGeneratedMipmapsRequired()) {
// No pregenerated mips available,
// generate from base level if required
if (!GLContext.getCapabilities().OpenGL30) {
glTexParameteri(target, GL_GENERATE_MIPMAP, GL_TRUE);
img.setMipmapsGenerated(true);
}
} else {
// Image already has mipmaps or no mipmap generation desired.
// glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0 );
if (img.getMipMapSizes() != null) {
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, img.getMipMapSizes().length - 1);
}
}
int imageSamples = img.getMultiSamples();
if (imageSamples > 1) {
if (img.getFormat().isDepthFormat()) {
img.setMultiSamples(Math.min(maxDepthTexSamples, imageSamples));
} else {
img.setMultiSamples(Math.min(maxColorTexSamples, imageSamples));
}
}
// Yes, some OpenGL2 cards (GeForce 5) still dont support NPOT.
if (!GLContext.getCapabilities().GL_ARB_texture_non_power_of_two) {
if (img.getWidth() != 0 && img.getHeight() != 0) {
if (!FastMath.isPowerOfTwo(img.getWidth())
|| !FastMath.isPowerOfTwo(img.getHeight())) {
if (img.getData(0) == null) {
throw new RendererException("non-power-of-2 framebuffer textures are not supported by the video hardware");
} else {
MipMapGenerator.resizeToPowerOf2(img);
}
}
}
}
// Check if graphics card doesn't support multisample textures
if (!GLContext.getCapabilities().GL_ARB_texture_multisample) {
if (img.getMultiSamples() > 1) {
throw new RendererException("Multisample textures not supported by graphics hardware");
}
}
if (target == GL_TEXTURE_CUBE_MAP) {
// Check max texture size before upload
if (img.getWidth() > maxCubeTexSize || img.getHeight() > maxCubeTexSize) {
throw new RendererException("Cannot upload cubemap " + img + ". The maximum supported cubemap resolution is " + maxCubeTexSize);
}
} else {
if (img.getWidth() > maxTexSize || img.getHeight() > maxTexSize) {
throw new RendererException("Cannot upload texture " + img + ". The maximum supported texture resolution is " + maxTexSize);
}
}
if (target == GL_TEXTURE_CUBE_MAP) {
List<ByteBuffer> data = img.getData();
if (data.size() != 6) {
logger.log(Level.WARNING, "Invalid texture: {0}\n"
+ "Cubemap textures must contain 6 data units.", img);
return;
}
for (int i = 0; i < 6; i++) {
TextureUtil.uploadTexture(img, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, i, 0);
}
} else if (target == EXTTextureArray.GL_TEXTURE_2D_ARRAY_EXT) {
if (!caps.contains(Caps.TextureArray)) {
throw new RendererException("Texture arrays not supported by graphics hardware");
}
List<ByteBuffer> data = img.getData();
// -1 index specifies prepare data for 2D Array
TextureUtil.uploadTexture(img, target, -1, 0);
for (int i = 0; i < data.size(); i++) {
// upload each slice of 2D array in turn
// this time with the appropriate index
TextureUtil.uploadTexture(img, target, i, 0);
}
} else {
TextureUtil.uploadTexture(img, target, 0, 0);
}
if (img.getMultiSamples() != imageSamples) {
img.setMultiSamples(imageSamples);
}
if (GLContext.getCapabilities().OpenGL30) {
if (!img.hasMipmaps() && img.isGeneratedMipmapsRequired() && img.getData() != null) {
// XXX: Required for ATI
glEnable(target);
glGenerateMipmapEXT(target);
glDisable(target);
img.setMipmapsGenerated(true);
}
}
img.clearUpdateNeeded();
}
public void setTexture(int unit, Texture tex) {
Image image = tex.getImage();
if (image.isUpdateNeeded() || (image.isGeneratedMipmapsRequired() && !image.isMipmapsGenerated())) {
updateTexImageData(image, tex.getType(), unit);
}
int texId = image.getId();
assert texId != -1;
Image[] textures = context.boundTextures;
int type = convertTextureType(tex.getType(), image.getMultiSamples(), -1);
// if (!context.textureIndexList.moveToNew(unit)) {
// if (context.boundTextureUnit != unit){
// glActiveTexture(GL_TEXTURE0 + unit);
// context.boundTextureUnit = unit;
// }
// glEnable(type);
// }
if (context.boundTextureUnit != unit) {
glActiveTexture(GL_TEXTURE0 + unit);
context.boundTextureUnit = unit;
}
if (textures[unit] != image) {
glBindTexture(type, texId);
textures[unit] = image;
statistics.onTextureUse(image, true);
} else {
statistics.onTextureUse(image, false);
}
setupTextureParams(tex);
}
public void modifyTexture(Texture tex, Image pixels, int x, int y) {
setTexture(0, tex);
TextureUtil.uploadSubTexture(pixels, convertTextureType(tex.getType(), pixels.getMultiSamples(), -1), 0, x, y);
}
public void clearTextureUnits() {
// IDList textureList = context.textureIndexList;
// Image[] textures = context.boundTextures;
// for (int i = 0; i < textureList.oldLen; i++) {
// int idx = textureList.oldList[i];
// if (context.boundTextureUnit != idx){
// glActiveTexture(GL_TEXTURE0 + idx);
// context.boundTextureUnit = idx;
// }
// glDisable(convertTextureType(textures[idx].getType()));
// textures[idx] = null;
// }
// context.textureIndexList.copyNewToOld();
}
public void deleteImage(Image image) {
int texId = image.getId();
if (texId != -1) {
intBuf1.put(0, texId);
intBuf1.position(0).limit(1);
glDeleteTextures(intBuf1);
image.resetObject();
statistics.onDeleteTexture();
}
}
/*********************************************************************\
|* Vertex Buffers and Attributes *|
\*********************************************************************/
private int convertUsage(Usage usage) {
switch (usage) {
case Static:
return GL_STATIC_DRAW;
case Dynamic:
return GL_DYNAMIC_DRAW;
case Stream:
return GL_STREAM_DRAW;
default:
throw new UnsupportedOperationException("Unknown usage type.");
}
}
private int convertFormat(Format format) {
switch (format) {
case Byte:
return GL_BYTE;
case UnsignedByte:
return GL_UNSIGNED_BYTE;
case Short:
return GL_SHORT;
case UnsignedShort:
return GL_UNSIGNED_SHORT;
case Int:
return GL_INT;
case UnsignedInt:
return GL_UNSIGNED_INT;
// case Half:
// return NVHalfFloat.GL_HALF_FLOAT_NV;
// return ARBHalfFloatVertex.GL_HALF_FLOAT;
case Float:
return GL_FLOAT;
case Double:
return GL_DOUBLE;
default:
throw new UnsupportedOperationException("Unknown buffer format.");
}
}
public void updateBufferData(VertexBuffer vb) {
int bufId = vb.getId();
boolean created = false;
if (bufId == -1) {
// create buffer
glGenBuffers(intBuf1);
bufId = intBuf1.get(0);
vb.setId(bufId);
objManager.registerObject(vb);
//statistics.onNewVertexBuffer();
created = true;
}
// bind buffer
int target;
if (vb.getBufferType() == VertexBuffer.Type.Index) {
target = GL_ELEMENT_ARRAY_BUFFER;
if (context.boundElementArrayVBO != bufId) {
glBindBuffer(target, bufId);
context.boundElementArrayVBO = bufId;
//statistics.onVertexBufferUse(vb, true);
} else {
//statistics.onVertexBufferUse(vb, false);
}
} else {
target = GL_ARRAY_BUFFER;
if (context.boundArrayVBO != bufId) {
glBindBuffer(target, bufId);
context.boundArrayVBO = bufId;
//statistics.onVertexBufferUse(vb, true);
} else {
//statistics.onVertexBufferUse(vb, false);
}
}
int usage = convertUsage(vb.getUsage());
vb.getData().rewind();
if (created || vb.hasDataSizeChanged()) {
// upload data based on format
switch (vb.getFormat()) {
case Byte:
case UnsignedByte:
glBufferData(target, (ByteBuffer) vb.getData(), usage);
break;
// case Half:
case Short:
case UnsignedShort:
glBufferData(target, (ShortBuffer) vb.getData(), usage);
break;
case Int:
case UnsignedInt:
glBufferData(target, (IntBuffer) vb.getData(), usage);
break;
case Float:
glBufferData(target, (FloatBuffer) vb.getData(), usage);
break;
case Double:
glBufferData(target, (DoubleBuffer) vb.getData(), usage);
break;
default:
throw new UnsupportedOperationException("Unknown buffer format.");
}
} else {
switch (vb.getFormat()) {
case Byte:
case UnsignedByte:
glBufferSubData(target, 0, (ByteBuffer) vb.getData());
break;
case Short:
case UnsignedShort:
glBufferSubData(target, 0, (ShortBuffer) vb.getData());
break;
case Int:
case UnsignedInt:
glBufferSubData(target, 0, (IntBuffer) vb.getData());
break;
case Float:
glBufferSubData(target, 0, (FloatBuffer) vb.getData());
break;
case Double:
glBufferSubData(target, 0, (DoubleBuffer) vb.getData());
break;
default:
throw new UnsupportedOperationException("Unknown buffer format.");
}
}
vb.clearUpdateNeeded();
}
public void deleteBuffer(VertexBuffer vb) {
int bufId = vb.getId();
if (bufId != -1) {
// delete buffer
intBuf1.put(0, bufId);
intBuf1.position(0).limit(1);
glDeleteBuffers(intBuf1);
vb.resetObject();
//statistics.onDeleteVertexBuffer();
}
}
public void clearVertexAttribs() {
IDList attribList = context.attribIndexList;
for (int i = 0; i < attribList.oldLen; i++) {
int idx = attribList.oldList[i];
glDisableVertexAttribArray(idx);
context.boundAttribs[idx] = null;
}
context.attribIndexList.copyNewToOld();
}
public void setVertexAttrib(VertexBuffer vb, VertexBuffer idb) {
if (vb.getBufferType() == VertexBuffer.Type.Index) {
throw new IllegalArgumentException("Index buffers not allowed to be set to vertex attrib");
}
int programId = context.boundShaderProgram;
if (programId > 0) {
Attribute attrib = boundShader.getAttribute(vb.getBufferType());
int loc = attrib.getLocation();
if (loc == -1) {
return; // not defined
}
if (loc == -2) {
stringBuf.setLength(0);
stringBuf.append("in").append(vb.getBufferType().name()).append('\0');
updateNameBuffer();
loc = glGetAttribLocation(programId, nameBuf);
// not really the name of it in the shader (inPosition\0) but
// the internal name of the enum (Position).
if (loc < 0) {
attrib.setLocation(-1);
return; // not available in shader.
} else {
attrib.setLocation(loc);
}
}
if (vb.isUpdateNeeded() && idb == null) {
updateBufferData(vb);
}
VertexBuffer[] attribs = context.boundAttribs;
if (!context.attribIndexList.moveToNew(loc)) {
glEnableVertexAttribArray(loc);
//System.out.println("Enabled ATTRIB IDX: "+loc);
}
if (attribs[loc] != vb) {
// NOTE: Use id from interleaved buffer if specified
int bufId = idb != null ? idb.getId() : vb.getId();
assert bufId != -1;
if (context.boundArrayVBO != bufId) {
glBindBuffer(GL_ARRAY_BUFFER, bufId);
context.boundArrayVBO = bufId;
//statistics.onVertexBufferUse(vb, true);
} else {
//statistics.onVertexBufferUse(vb, false);
}
glVertexAttribPointer(loc,
vb.getNumComponents(),
convertFormat(vb.getFormat()),
vb.isNormalized(),
vb.getStride(),
vb.getOffset());
attribs[loc] = vb;
}
} else {
throw new IllegalStateException("Cannot render mesh without shader bound");
}
}
public void setVertexAttrib(VertexBuffer vb) {
setVertexAttrib(vb, null);
}
public void drawTriangleArray(Mesh.Mode mode, int count, int vertCount) {
if (count > 1) {
ARBDrawInstanced.glDrawArraysInstancedARB(convertElementMode(mode), 0,
vertCount, count);
} else {
glDrawArrays(convertElementMode(mode), 0, vertCount);
}
}
public void drawTriangleList(VertexBuffer indexBuf, Mesh mesh, int count) {
if (indexBuf.getBufferType() != VertexBuffer.Type.Index) {
throw new IllegalArgumentException("Only index buffers are allowed as triangle lists.");
}
if (indexBuf.isUpdateNeeded()) {
updateBufferData(indexBuf);
}
int bufId = indexBuf.getId();
assert bufId != -1;
if (context.boundElementArrayVBO != bufId) {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufId);
context.boundElementArrayVBO = bufId;
//statistics.onVertexBufferUse(indexBuf, true);
} else {
//statistics.onVertexBufferUse(indexBuf, true);
}
int vertCount = mesh.getVertexCount();
boolean useInstancing = count > 1 && caps.contains(Caps.MeshInstancing);
if (mesh.getMode() == Mode.Hybrid) {
int[] modeStart = mesh.getModeStart();
int[] elementLengths = mesh.getElementLengths();
int elMode = convertElementMode(Mode.Triangles);
int fmt = convertFormat(indexBuf.getFormat());
int elSize = indexBuf.getFormat().getComponentSize();
int listStart = modeStart[0];
int stripStart = modeStart[1];
int fanStart = modeStart[2];
int curOffset = 0;
for (int i = 0; i < elementLengths.length; i++) {
if (i == stripStart) {
elMode = convertElementMode(Mode.TriangleStrip);
} else if (i == fanStart) {
elMode = convertElementMode(Mode.TriangleFan);
}
int elementLength = elementLengths[i];
if (useInstancing) {
ARBDrawInstanced.glDrawElementsInstancedARB(elMode,
elementLength,
fmt,
curOffset,
count);
} else {
glDrawRangeElements(elMode,
0,
vertCount,
elementLength,
fmt,
curOffset);
}
curOffset += elementLength * elSize;
}
} else {
if (useInstancing) {
ARBDrawInstanced.glDrawElementsInstancedARB(convertElementMode(mesh.getMode()),
indexBuf.getData().limit(),
convertFormat(indexBuf.getFormat()),
0,
count);
} else {
glDrawRangeElements(convertElementMode(mesh.getMode()),
0,
vertCount,
indexBuf.getData().limit(),
convertFormat(indexBuf.getFormat()),
0);
}
}
}
/*********************************************************************\
|* Render Calls *|
\*********************************************************************/
public int convertElementMode(Mesh.Mode mode) {
switch (mode) {
case Points:
return GL_POINTS;
case Lines:
return GL_LINES;
case LineLoop:
return GL_LINE_LOOP;
case LineStrip:
return GL_LINE_STRIP;
case Triangles:
return GL_TRIANGLES;
case TriangleFan:
return GL_TRIANGLE_FAN;
case TriangleStrip:
return GL_TRIANGLE_STRIP;
default:
throw new UnsupportedOperationException("Unrecognized mesh mode: " + mode);
}
}
public void updateVertexArray(Mesh mesh) {
int id = mesh.getId();
if (id == -1) {
IntBuffer temp = intBuf1;
ARBVertexArrayObject.glGenVertexArrays(temp);
id = temp.get(0);
mesh.setId(id);
}
if (context.boundVertexArray != id) {
ARBVertexArrayObject.glBindVertexArray(id);
context.boundVertexArray = id;
}
VertexBuffer interleavedData = mesh.getBuffer(Type.InterleavedData);
if (interleavedData != null && interleavedData.isUpdateNeeded()) {
updateBufferData(interleavedData);
}
for (VertexBuffer vb : mesh.getBufferList().getArray()) {
if (vb.getBufferType() == Type.InterleavedData
|| vb.getUsage() == Usage.CpuOnly // ignore cpu-only buffers
|| vb.getBufferType() == Type.Index) {
continue;
}
if (vb.getStride() == 0) {
// not interleaved
setVertexAttrib(vb);
} else {
// interleaved
setVertexAttrib(vb, interleavedData);
}
}
}
private void renderMeshVertexArray(Mesh mesh, int lod, int count) {
if (mesh.getId() == -1) {
updateVertexArray(mesh);
} else {
// TODO: Check if it was updated
}
if (context.boundVertexArray != mesh.getId()) {
ARBVertexArrayObject.glBindVertexArray(mesh.getId());
context.boundVertexArray = mesh.getId();
}
// IntMap<VertexBuffer> buffers = mesh.getBuffers();
VertexBuffer indices;
if (mesh.getNumLodLevels() > 0) {
indices = mesh.getLodLevel(lod);
} else {
indices = mesh.getBuffer(Type.Index);
}
if (indices != null) {
drawTriangleList(indices, mesh, count);
} else {
drawTriangleArray(mesh.getMode(), count, mesh.getVertexCount());
}
clearVertexAttribs();
clearTextureUnits();
}
private void renderMeshDefault(Mesh mesh, int lod, int count) {
VertexBuffer indices;
VertexBuffer interleavedData = mesh.getBuffer(Type.InterleavedData);
if (interleavedData != null && interleavedData.isUpdateNeeded()) {
updateBufferData(interleavedData);
}
// IntMap<VertexBuffer> buffers = mesh.getBuffers();
// SafeArrayList<VertexBuffer> buffersList = mesh.getBufferList();
if (mesh.getNumLodLevels() > 0) {
indices = mesh.getLodLevel(lod);
} else {
indices = mesh.getBuffer(Type.Index);
}
// for (Entry<VertexBuffer> entry : buffers) {
// VertexBuffer vb = entry.getValue();
for (VertexBuffer vb : mesh.getBufferList().getArray()) {
if (vb.getBufferType() == Type.InterleavedData
|| vb.getUsage() == Usage.CpuOnly // ignore cpu-only buffers
|| vb.getBufferType() == Type.Index) {
continue;
}
if (vb.getStride() == 0) {
// not interleaved
setVertexAttrib(vb);
} else {
// interleaved
setVertexAttrib(vb, interleavedData);
}
}
if (indices != null) {
drawTriangleList(indices, mesh, count);
} else {
drawTriangleArray(mesh.getMode(), count, mesh.getVertexCount());
}
clearVertexAttribs();
clearTextureUnits();
}
public void renderMesh(Mesh mesh, int lod, int count) {
if (mesh.getVertexCount() == 0) {
return;
}
if (context.pointSprite && mesh.getMode() != Mode.Points) {
// XXX: Hack, disable point sprite mode if mesh not in point mode
if (context.boundTextures[0] != null) {
if (context.boundTextureUnit != 0) {
glActiveTexture(GL_TEXTURE0);
context.boundTextureUnit = 0;
}
glDisable(GL_POINT_SPRITE);
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
context.pointSprite = false;
}
}
if (context.pointSize != mesh.getPointSize()) {
glPointSize(mesh.getPointSize());
context.pointSize = mesh.getPointSize();
}
if (context.lineWidth != mesh.getLineWidth()) {
glLineWidth(mesh.getLineWidth());
context.lineWidth = mesh.getLineWidth();
}
statistics.onMeshDrawn(mesh, lod);
// if (GLContext.getCapabilities().GL_ARB_vertex_array_object){
// renderMeshVertexArray(mesh, lod, count);
// }else{
renderMeshDefault(mesh, lod, count);
// }
}
}