WarpPI/teavm/src/main/java/it/cavallium/warppi/gui/graphicengine/html/HtmlRenderer.java

293 lines
8.3 KiB
Java

package it.cavallium.warppi.gui.graphicengine.html;
import org.teavm.jso.canvas.CanvasImageSource;
import org.teavm.jso.canvas.CanvasRenderingContext2D;
import org.teavm.jso.dom.html.HTMLImageElement;
import org.teavm.jso.typedarrays.Uint8ClampedArray;
import it.cavallium.warppi.StaticVars;
import it.cavallium.warppi.gui.graphicengine.Renderer;
public class HtmlRenderer implements Renderer {
private static final boolean ENABLE_SUPERSAMPLING = false;
private static final boolean ENABLE_TRANSPARENCY = true;
private String currentColor = "#000000ff";
private String clearColor = "#000000ff";
HtmlFont f = null;
HtmlSkin currentSkin = null;
private final CanvasRenderingContext2D g;
private final HtmlEngine e;
public HtmlRenderer(HtmlEngine e, CanvasRenderingContext2D g) {
this.g = g;
this.e = e;
}
private String toHex(int c) {
final int a = c >> 24 & 0xFF;
final int r = c >> 16 & 0xFF;
final int gg = c >> 8 & 0xFF;
final int b = c & 0xFF;
return String.format("#%02x%02x%02x%02x", r, gg, b, a);
}
private String toHex8(int c) {
final int r = c >> 16 & 0xFF;
final int gg = c >> 8 & 0xFF;
final int b = c & 0xFF;
return String.format("#%02x%02x%02x", r, gg, b);
}
private String toHex(int r, int g, int b) {
return String.format("#%02x%02x%02x", r, g, b);
}
private String toHex(int r, int g, int b, int a) {
return String.format("#%02x%02x%02x%02x", r, g, b, a);
}
@Override
public int glGetClearColor() {
return hexToInt(clearColor);
}
private int hexToInt(String hex) {
switch (hex.length()) {
case 6:
return (0xFF << 24) |
(Integer.valueOf(hex.substring(0, 2), 16) << 16) |
(Integer.valueOf(hex.substring(2, 4), 16) << 8) |
Integer.valueOf(hex.substring(4, 6), 16);
case 6+1:
return (0xFF << 24) |
(Integer.valueOf(hex.substring(0+1, 2+1), 16) << 16) |
(Integer.valueOf(hex.substring(2+1, 4+1), 16) << 8) |
Integer.valueOf(hex.substring(4+1, 6+1), 16);
case 8:
return (Integer.valueOf(hex.substring(6, 8), 16) << 24) |
(Integer.valueOf(hex.substring(0, 2), 16) << 16) |
(Integer.valueOf(hex.substring(2, 4), 16) << 8) |
Integer.valueOf(hex.substring(4, 6), 16);
case 8+1:
return (Integer.valueOf(hex.substring(6+1, 8+1), 16) << 24) |
(Integer.valueOf(hex.substring(0+1, 2+1), 16) << 16) |
(Integer.valueOf(hex.substring(2+1, 4+1), 16) << 8) |
Integer.valueOf(hex.substring(4+1, 6+1), 16);
}
return 0xFF000000;
}
@Override
public void glFillRect(float x, float y, float width, float height, float uvX, float uvY, float uvWidth,
float uvHeight) {
if (currentSkin != null) {
glDrawSkin((int) x, (int) y, (int) (x + width), (int) (y + height), (int) uvX, (int) uvY, (int) (uvWidth + uvX), (int) (uvHeight + uvY), true);
} else {
glFillColor(x, y, width, height);
}
}
@SuppressWarnings("unused")
private void glDrawSkin(int x0, int y0, int x1, int y1, int s0, int t0, int s1, int t1, boolean transparent) {
final int[] size = e.getSize();
x0 += StaticVars.screenPos[0];
y0 += StaticVars.screenPos[1];
final double incrementX = Math.abs((double) (x1 - x0) / (double) (s1 - s0));
final double incrementY = Math.abs((double) (y1 - y0) / (double) (t1 - t0));
final boolean flippedX = (x1 - x0) / (s1 - s0) < 0;
final boolean flippedY = (y1 - y0) / (t1 - t0) < 0;
int oldColor = 0;
int newColor;
final int onex = s0 <= s1 ? 1 : -1;
final int oney = t0 <= t1 ? 1 : -1;
int width = 0;
int height = 0;
if (onex == -1) {
final int s00 = s0;
s0 = s1;
s1 = s00;
width = s1 - s0;
}
if (oney == -1) {
final int t00 = t0;
t0 = t1;
t1 = t00;
height = t1 - t0;
}
if (x0 >= size[0] || y0 >= size[0]) {
return;
}
if (x0 + width >= size[0]) {
s1 = size[0] - x0 + s0;
}
if (y0 + height >= size[1]) {
t1 = size[1] - y0 + t0;
}
if (x0 < 0) {
if (onex == -1) {
width += x0;
s1 += x0 + 1;
} else {
s0 -= x0;
}
x0 = 0;
}
if (y0 < 0) {
if (oney == -1) {
height += y0;
t1 += y0 + 1;
} else {
t0 -= y0;
}
y0 = 0;
}
g.drawImage(currentSkin.getImgElement(), s0, t0, s1-s0, t1-t0, x0, y0, x1-x0, y1-y0);
}
@Override
public void glFillColor(float x, float y, float width, float height) {
x += StaticVars.screenPos[0];
y += StaticVars.screenPos[1];
g.setFillStyle(currentColor);
g.fillRect( x, y, width, height );
}
@Override
public void glDrawStringRight(float x, float y, String text) {
glDrawStringLeft(x - f.getStringWidth(text), y, text);
}
@Override
public void glDrawStringLeft(float x, float y, String textString) {
x += StaticVars.screenPos[0];
y += StaticVars.screenPos[1];
f.imgElCtx.setGlobalCompositeOperation("source-in");
f.imgElCtx.setFillStyle(currentColor);
f.imgElCtx.fillRect(0, 0, f.imgEl.getWidth(), f.imgEl.getHeight());
final int[] text = f.getCharIndexes(textString);
final int[] screenSize = e.getSize();
int cpos;
final int l = text.length;
for (int i = 0; i < l; i++) {
cpos = (i * (f.charW));
final int charIndex = text[i];
g.drawImage(f.imgEl, 0, charIndex*f.charH, f.charW, f.charH, x+cpos, y, f.charW, f.charH);
}
}
private int stackColors(int... color) {
double a = 0;
double r = 0;
double g = 0;
double b = 0;
for (final int newColor : color) {
final double alpha = (newColor >> 24 & 0xFF) / 255d;
a = a * (1d - alpha) + (newColor >> 24 & 0xFF) * alpha;
r = r * (1d - alpha) + (newColor >> 16 & 0xFF) * alpha;
g = g * (1d - alpha) + (newColor >> 8 & 0xFF) * alpha;
b = b * (1d - alpha) + (newColor & 0xFF) * alpha;
}
return ((int) a) << 24 | ((int) r) << 16 | ((int) g) << 8 | ((int) b);
}
@Override
public void glDrawStringCenter(float x, float y, String text) {
glDrawStringLeft(x - (f.getStringWidth(text) / 2), y, text);
}
@Override
public void glDrawLine(float x0, float y0, float x1, float y1) {
if (x1-x0 > 0 && y1-y0 > 0) {
g.beginPath();
g.moveTo(x0, y0);
g.lineTo(x1, y1);
g.stroke();
} else {
g.fillRect(x0, y0, (x1-x0)+1, (y1-y0)+1);
}
}
@Override
public void glDrawCharRight(int x, int y, char ch) {
glDrawStringRight(x, y, ch + "");
}
@Override
public void glDrawCharLeft(int x, int y, char ch) {
glDrawStringLeft(x, y, ch + "");
}
@Override
public void glDrawCharCenter(int x, int y, char ch) {
glDrawStringCenter(x, y, ch + "");
}
@Override
public void glColor4i(int red, int green, int blue, int alpha) {
g.setFillStyle(currentColor = toHex(red, green, blue, alpha));
}
@Override
public void glColor4f(float red, float green, float blue, float alpha) {
glColor4i((int) (red * 255d), (int) (green * 255d), (int) (blue * 255d), (int) (alpha * 255d));
}
@Override
public void glColor3i(int r, int gg, int b) {
g.setFillStyle(currentColor = toHex(r, gg, b));
}
@Override
public void glColor3f(float red, float green, float blue) {
glColor3i((int) (red * 255d), (int) (green * 255d), (int) (blue * 255d));
}
@Override
public void glColor(int c) {
final int a = c >> 24 & 0xFF;
final int r = c >> 16 & 0xFF;
final int gg = c >> 8 & 0xFF;
final int b = c & 0xFF;
g.setFillStyle(currentColor = toHex(r, gg, b, a));
}
@Override
public void glClearSkin() {
currentSkin = null;
}
@Override
public void glClearColor4i(int red, int green, int blue, int alpha) {
clearColor = toHex(red, green, blue, alpha);
}
@Override
public void glClearColor4f(float red, float green, float blue, float alpha) {
clearColor = toHex((int)(red*255),
(int)(green*255),
(int)(blue*255),
(int)(alpha*255));
}
@Override
public void glClearColor(int c) {
final int r = c >> 16 & 0xFF;
final int gg = c >> 8 & 0xFF;
final int b = c & 0xFF;
clearColor = toHex(r, gg, b);
}
@Override
public void glClear(int screenWidth, int screenHeight) {
g.setFillStyle(clearColor);
g.fillRect(0, 0, screenWidth, screenHeight);
g.setFillStyle(currentColor);
}
@Override
public HtmlFont getCurrentFont() {
return f;
}
}