Sunpy/opsu-dance
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first attemt at shrinking sliders

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yugecin
2016-12-03 18:18:18 +01:00
parent fd39b69cbf
commit 08834471fc
3 changed files with 29 additions and 21 deletions
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32
src/itdelatrisu/opsu/render/CurveRenderState.java
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@@ -64,6 +64,7 @@ public class CurveRenderState {
/** The point to which the curve has last been rendered into the texture (as an index into {@code curve}). */
private int lastPointDrawn;
private int firstPointDrawn;
/**
* Set the width and height of the container that Curves get drawn into.
@@ -85,7 +86,7 @@ public class CurveRenderState {
/**
* Undo the static state. Static state setup caused by calls to
* {@link #draw(org.newdawn.slick.Color, org.newdawn.slick.Color, float)}
* {@link #draw(org.newdawn.slick.Color, org.newdawn.slick.Color, float, float)}
* are undone.
*/
public static void shutdown() {
@@ -110,10 +111,11 @@ public class CurveRenderState {
* runs it just draws the cached copy to the screen.
* @param color tint of the curve
* @param borderColor the curve border color
* @param t the point up to which the curve should be drawn (in the interval [0, 1])
* @param t2 the point up to which the curve should be drawn (in the interval [0, 1])
*/
public void draw(Color color, Color borderColor, float t) {
t = Utils.clamp(t, 0.0f, 1.0f);
public void draw(Color color, Color borderColor, float t1, float t2) {
t1 = Utils.clamp(t1, 0.0f, 1.0f);
t2 = Utils.clamp(t2, 0.0f, 1.0f);
float alpha = color.a;
// if this curve hasn't been drawn, draw it and cache the result
@@ -127,13 +129,11 @@ public class CurveRenderState {
//write impossible value to make sure the fbo is cleared
lastPointDrawn = -1;
}
int drawUpTo = (int) (t * curve.length);
if (lastPointDrawn != drawUpTo) {
if (drawUpTo == lastPointDrawn)
return;
int drawFrom = (int) (t1 * curve.length);
int drawUpTo = (int) (t2 * curve.length);
if (lastPointDrawn != drawUpTo || firstPointDrawn != drawFrom) {
int oldFb = GL11.glGetInteger(EXTFramebufferObject.GL_FRAMEBUFFER_BINDING_EXT);
int oldTex = GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
//glGetInteger requires a buffer of size 16, even though just 4
@@ -147,8 +147,11 @@ public class CurveRenderState {
GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
}
this.renderCurve(color, borderColor, lastPointDrawn, drawUpTo);
if (firstPointDrawn != drawFrom) {
this.renderCurve(color, borderColor, drawFrom, drawUpTo, true);
} else {
this.renderCurve(color, borderColor, lastPointDrawn, drawUpTo, false);
}
lastPointDrawn = drawUpTo;
color.a = 1f;
@@ -295,7 +298,7 @@ public class CurveRenderState {
* @param color the color of the curve
* @param borderColor the curve border color
*/
private void renderCurve(Color color, Color borderColor, int from, int to) {
private void renderCurve(Color color, Color borderColor, int from, int to, boolean clearFirst) {
staticState.initGradient();
RenderState state = saveRenderState();
staticState.initShaderProgram();
@@ -310,6 +313,9 @@ public class CurveRenderState {
//2*4 is for skipping the first 2 floats (u,v)
GL20.glVertexAttribPointer(staticState.attribLoc, 4, GL11.GL_FLOAT, false, 6 * 4, 2 * 4);
GL20.glVertexAttribPointer(staticState.texCoordLoc, 2, GL11.GL_FLOAT, false, 6 * 4, 0);
if (clearFirst) {
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
}
for (int i = from * 2; i < to * 2 - 1; ++i)
GL11.glDrawArrays(GL11.GL_TRIANGLE_FAN, i * (NewCurveStyleState.DIVIDES + 2), NewCurveStyleState.DIVIDES + 2);
GL11.glFlush();