public Tessellator(int p_i52_1_) {
renderingChunk = false;
defaultTexture = true;
autoGrow = true;
subTessellators = new Tessellator[0];
subTextures = new int[0];
terrainTexture = 0;
textureUpdateTime = 0L;
field_1505_h = 0;
field_1501_l = false;
field_1500_m = false;
field_35838_p = false;
field_1499_n = false;
field_1498_o = 0;
field_1497_p = 0;
field_1495_q = false;
field_1488_w = false;
field_1487_x = false;
field_1485_z = 0;
field_1496_A = 10;
field_1494_B = p_i52_1_;
field_1509_d = GLAllocation.func_1127_b(p_i52_1_ * 4);
field_1508_e = field_1509_d.asIntBuffer();
field_1507_f = field_1509_d.asFloatBuffer();
field_35836_g = field_1509_d.asShortBuffer();
field_1506_g = new int[p_i52_1_];
field_1487_x = field_1510_c && GLContext.getCapabilities().GL_ARB_vertex_buffer_object;
if (field_1487_x) {
field_1486_y = GLAllocation.func_1125_c(field_1496_A);
ARBVertexBufferObject.glGenBuffersARB(field_1486_y);
}
}
Tessellator(int par1) {
vertexCount = 0;
hasColor = false;
hasTexture = false;
hasBrightness = false;
hasNormals = false;
rawBufferIndex = 0;
addedVertices = 0;
isColorDisabled = false;
isDrawing = false;
useVBO = false;
vboIndex = 0;
vboCount = 10;
bufferSize = par1;
byteBuffer = GLAllocation.createDirectByteBuffer(par1 * 4);
intBuffer = byteBuffer.asIntBuffer();
floatBuffer = byteBuffer.asFloatBuffer();
shortBuffer = byteBuffer.asShortBuffer();
rawBuffer = new int[par1];
useVBO = tryVBO && GLContext.getCapabilities().GL_ARB_vertex_buffer_object;
if (useVBO) {
vertexBuffers = GLAllocation.createDirectIntBuffer(vboCount);
ARBVertexBufferObject.glGenBuffersARB(vertexBuffers);
}
}
public int func_982_a() {
if (!field_1488_w) {
throw new IllegalStateException("Not tesselating!");
}
if (renderingChunk && subTessellators.length > 0) {
boolean flag = false;
for (int j = 0; j < subTessellators.length; j++) {
int k = subTextures[j];
if (k <= 0) {
break;
}
Tessellator tessellator = subTessellators[j];
if (tessellator.field_1488_w) {
GL11.glBindTexture(3553, k);
tessellator.func_982_a();
flag = true;
}
}
if (flag) {
GL11.glBindTexture(3553, getTerrainTexture());
}
}
field_1488_w = false;
if (field_1505_h > 0) {
field_1508_e.clear();
field_1508_e.put(field_1506_g, 0, field_1498_o);
field_1509_d.position(0);
field_1509_d.limit(field_1498_o * 4);
if (field_1487_x) {
field_1485_z = (field_1485_z + 1) % field_1496_A;
ARBVertexBufferObject.glBindBufferARB(34962, field_1486_y.get(field_1485_z));
ARBVertexBufferObject.glBufferDataARB(34962, field_1509_d, 35040);
}
if (field_1500_m) {
if (field_1487_x) {
GL11.glTexCoordPointer(2, 5126, 32, 12L);
} else {
field_1507_f.position(3);
GL11.glTexCoordPointer(2, 32, field_1507_f);
}
GL11.glEnableClientState(32888);
}
if (field_35838_p) {
OpenGlHelper.func_40451_b(OpenGlHelper.field_40455_b);
if (field_1487_x) {
GL11.glTexCoordPointer(2, 5122, 32, 28L);
} else {
field_35836_g.position(14);
GL11.glTexCoordPointer(2, 32, field_35836_g);
}
GL11.glEnableClientState(32888);
OpenGlHelper.func_40451_b(OpenGlHelper.field_40457_a);
}
if (field_1501_l) {
if (field_1487_x) {
GL11.glColorPointer(4, 5121, 32, 20L);
} else {
field_1509_d.position(20);
GL11.glColorPointer(4, true, 32, field_1509_d);
}
GL11.glEnableClientState(32886);
}
if (field_1499_n) {
if (field_1487_x) {
GL11.glNormalPointer(5121, 32, 24L);
} else {
field_1509_d.position(24);
GL11.glNormalPointer(32, field_1509_d);
}
GL11.glEnableClientState(32885);
}
if (field_1487_x) {
GL11.glVertexPointer(3, 5126, 32, 0L);
} else {
field_1507_f.position(0);
GL11.glVertexPointer(3, 32, field_1507_f);
}
GL11.glEnableClientState(32884);
if (field_1493_r == 7 && field_1511_b) {
GL11.glDrawArrays(4, 0, field_1505_h);
} else {
GL11.glDrawArrays(field_1493_r, 0, field_1505_h);
}
GL11.glDisableClientState(32884);
if (field_1500_m) {
GL11.glDisableClientState(32888);
}
if (field_35838_p) {
OpenGlHelper.func_40451_b(OpenGlHelper.field_40455_b);
GL11.glDisableClientState(32888);
OpenGlHelper.func_40451_b(OpenGlHelper.field_40457_a);
}
if (field_1501_l) {
GL11.glDisableClientState(32886);
}
if (field_1499_n) {
GL11.glDisableClientState(32885);
}
}
int i = field_1498_o * 4;
func_985_d();
return i;
}
/** Draws the data set up in this tessellator and resets the state to prepare for new drawing. */
public int draw() {
if (!isDrawing) {
throw new IllegalStateException("Not tesselating!");
}
isDrawing = false;
if (vertexCount > 0) {
intBuffer.clear();
intBuffer.put(rawBuffer, 0, rawBufferIndex);
byteBuffer.position(0);
byteBuffer.limit(rawBufferIndex * 4);
if (useVBO) {
vboIndex = (vboIndex + 1) % vboCount;
ARBVertexBufferObject.glBindBufferARB(
ARBVertexBufferObject.GL_ARRAY_BUFFER_ARB, vertexBuffers.get(vboIndex));
ARBVertexBufferObject.glBufferDataARB(
ARBVertexBufferObject.GL_ARRAY_BUFFER_ARB,
byteBuffer,
ARBVertexBufferObject.GL_STREAM_DRAW_ARB);
}
if (hasTexture) {
if (useVBO) {
GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 32, 12L);
} else {
floatBuffer.position(3);
GL11.glTexCoordPointer(2, 32, floatBuffer);
}
GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
}
if (hasBrightness) {
OpenGlHelper.setClientActiveTexture(OpenGlHelper.lightmapTexUnit);
if (useVBO) {
GL11.glTexCoordPointer(2, GL11.GL_SHORT, 32, 28L);
} else {
shortBuffer.position(14);
GL11.glTexCoordPointer(2, 32, shortBuffer);
}
GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
}
if (hasColor) {
if (useVBO) {
GL11.glColorPointer(4, GL11.GL_UNSIGNED_BYTE, 32, 20L);
} else {
byteBuffer.position(20);
GL11.glColorPointer(4, true, 32, byteBuffer);
}
GL11.glEnableClientState(GL11.GL_COLOR_ARRAY);
}
if (hasNormals) {
if (useVBO) {
GL11.glNormalPointer(GL11.GL_UNSIGNED_BYTE, 32, 24L);
} else {
byteBuffer.position(24);
GL11.glNormalPointer(32, byteBuffer);
}
GL11.glEnableClientState(GL11.GL_NORMAL_ARRAY);
}
if (useVBO) {
GL11.glVertexPointer(3, GL11.GL_FLOAT, 32, 0L);
} else {
floatBuffer.position(0);
GL11.glVertexPointer(3, 32, floatBuffer);
}
GL11.glEnableClientState(GL11.GL_VERTEX_ARRAY);
if (drawMode == 7 && convertQuadsToTriangles) {
GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, vertexCount);
} else {
GL11.glDrawArrays(drawMode, 0, vertexCount);
}
GL11.glDisableClientState(GL11.GL_VERTEX_ARRAY);
if (hasTexture) {
GL11.glDisableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
}
if (hasBrightness) {
OpenGlHelper.setClientActiveTexture(OpenGlHelper.lightmapTexUnit);
GL11.glDisableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
OpenGlHelper.setClientActiveTexture(OpenGlHelper.defaultTexUnit);
}
if (hasColor) {
GL11.glDisableClientState(GL11.GL_COLOR_ARRAY);
}
if (hasNormals) {
GL11.glDisableClientState(GL11.GL_NORMAL_ARRAY);
}
}
int i = rawBufferIndex * 4;
reset();
return i;
}