Shader changes to allow for more flexible constant binding.
Change-Id: Ic66e6e2a371c6e3d5dce1b00f63acab8c09bd110
diff --git a/graphics/java/android/renderscript/ProgramFragment.java b/graphics/java/android/renderscript/ProgramFragment.java
index 04091a3..00c5cf1 100644
--- a/graphics/java/android/renderscript/ProgramFragment.java
+++ b/graphics/java/android/renderscript/ProgramFragment.java
@@ -62,9 +62,9 @@
}
}
- public static class Builder {
+ public static class Builder extends ShaderBuilder {
public static final int MAX_TEXTURE = 2;
- RenderScript mRS;
+ int mNumTextures;
boolean mPointSpriteEnable;
boolean mVaryingColorEnable;
@@ -101,7 +101,72 @@
}
Slot[] mSlots;
+ private void buildShaderString() {
+ mShader = "//rs_shader_internal\n";
+ mShader += "varying lowp vec4 varColor;\n";
+ mShader += "varying vec4 varTex0;\n";
+
+ mShader += "void main() {\n";
+ if (mVaryingColorEnable) {
+ mShader += " lowp vec4 col = varColor;\n";
+ } else {
+ mShader += " lowp vec4 col = UNI_Color;\n";
+ }
+
+ if (mNumTextures != 0) {
+ if (mPointSpriteEnable) {
+ mShader += " vec2 t0 = gl_PointCoord;\n";
+ } else {
+ mShader += " vec2 t0 = varTex0.xy;\n";
+ }
+ }
+
+ for(int i = 0; i < mNumTextures; i ++) {
+ switch(mSlots[i].env) {
+ case REPLACE:
+ switch (mSlots[i].format) {
+ case ALPHA:
+ mShader += " col.a = texture2D(UNI_Tex0, t0).a;\n";
+ break;
+ case LUMINANCE_ALPHA:
+ mShader += " col.rgba = texture2D(UNI_Tex0, t0).rgba;\n";
+ break;
+ case RGB:
+ mShader += " col.rgb = texture2D(UNI_Tex0, t0).rgb;\n";
+ break;
+ case RGBA:
+ mShader += " col.rgba = texture2D(UNI_Tex0, t0).rgba;\n";
+ break;
+ }
+ break;
+ case MODULATE:
+ switch (mSlots[i].format) {
+ case ALPHA:
+ mShader += " col.a *= texture2D(UNI_Tex0, t0).a;\n";
+ break;
+ case LUMINANCE_ALPHA:
+ mShader += " col.rgba *= texture2D(UNI_Tex0, t0).rgba;\n";
+ break;
+ case RGB:
+ mShader += " col.rgb *= texture2D(UNI_Tex0, t0).rgb;\n";
+ break;
+ case RGBA:
+ mShader += " col.rgba *= texture2D(UNI_Tex0, t0).rgba;\n";
+ break;
+ }
+ break;
+ case DECAL:
+ mShader += " col = texture2D(UNI_Tex0, t0);\n";
+ break;
+ }
+ }
+
+ mShader += " gl_FragColor = col;\n";
+ mShader += "}\n";
+ }
+
public Builder(RenderScript rs) {
+ super(rs);
mRS = rs;
mSlots = new Slot[MAX_TEXTURE];
mPointSpriteEnable = false;
@@ -126,22 +191,35 @@
return this;
}
+ @Override
public ProgramFragment create() {
- mRS.validate();
- int[] tmp = new int[MAX_TEXTURE * 2 + 2];
- if (mSlots[0] != null) {
- tmp[0] = mSlots[0].env.mID;
- tmp[1] = mSlots[0].format.mID;
+ mNumTextures = 0;
+ for(int i = 0; i < MAX_TEXTURE; i ++) {
+ if(mSlots[i] != null) {
+ mNumTextures ++;
+ }
}
- if (mSlots[1] != null) {
- tmp[2] = mSlots[1].env.mID;
- tmp[3] = mSlots[1].format.mID;
+ buildShaderString();
+ Type constType = null;
+ if (!mVaryingColorEnable) {
+ Element.Builder b = new Element.Builder(mRS);
+ b.add(Element.F32_4(mRS), "Color");
+ Type.Builder typeBuilder = new Type.Builder(mRS, b.create());
+ typeBuilder.add(Dimension.X, 1);
+ constType = typeBuilder.create();
+ addConstant(constType);
}
- tmp[4] = mPointSpriteEnable ? 1 : 0;
- tmp[5] = mVaryingColorEnable ? 1 : 0;
- int id = mRS.nProgramFragmentCreate(tmp);
- ProgramFragment pf = new ProgramFragment(id, mRS);
+ setTextureCount(mNumTextures);
+
+ ProgramFragment pf = super.create();
pf.mTextureCount = MAX_TEXTURE;
+ if (!mVaryingColorEnable) {
+ Allocation constantData = Allocation.createTyped(mRS,constType);
+ float[] data = new float[4];
+ data[0] = data[1] = data[2] = data[3] = 1.0f;
+ constantData.data(data);
+ pf.bindConstants(constantData, 0);
+ }
return pf;
}
}