API cleanup for renderscript. This will be a multiproject commit.

Change-Id: Ida62d3a155285a20725be9daa62217faef1c3734

1 files changed, 237 insertions, 0 deletions

diff --git a/graphics/java/android/renderscript/ProgramFragmentFixedFunction.java b/graphics/java/android/renderscript/ProgramFragmentFixedFunction.java
new file mode 100644
index 000000000000..d011219dd0cf
--- /dev/null
+++ b/graphics/java/android/renderscript/ProgramFragmentFixedFunction.java
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.renderscript;
+
+
+import android.util.Config;
+import android.util.Log;
+
+
+/**
+ * @hide
+ *
+ **/
+public class ProgramFragmentFixedFunction extends ProgramFragment {
+    ProgramFragmentFixedFunction(int id, RenderScript rs) {
+        super(id, rs);
+    }
+
+    static class InternalBuilder extends BaseProgramBuilder {
+        public InternalBuilder(RenderScript rs) {
+            super(rs);
+        }
+
+        public ProgramFragmentFixedFunction create() {
+            mRS.validate();
+            int[] tmp = new int[(mInputCount + mOutputCount + mConstantCount + mTextureCount) * 2];
+            int idx = 0;
+
+            for (int i=0; i < mInputCount; i++) {
+                tmp[idx++] = ProgramParam.INPUT.mID;
+                tmp[idx++] = mInputs[i].getID();
+            }
+            for (int i=0; i < mOutputCount; i++) {
+                tmp[idx++] = ProgramParam.OUTPUT.mID;
+                tmp[idx++] = mOutputs[i].getID();
+            }
+            for (int i=0; i < mConstantCount; i++) {
+                tmp[idx++] = ProgramParam.CONSTANT.mID;
+                tmp[idx++] = mConstants[i].getID();
+            }
+            for (int i=0; i < mTextureCount; i++) {
+                tmp[idx++] = ProgramParam.TEXTURE_TYPE.mID;
+                tmp[idx++] = mTextureTypes[i].mID;
+            }
+
+            int id = mRS.nProgramFragmentCreate(mShader, tmp);
+            ProgramFragmentFixedFunction pf = new ProgramFragmentFixedFunction(id, mRS);
+            initProgram(pf);
+            return pf;
+        }
+    }
+
+    public static class Builder {
+        public static final int MAX_TEXTURE = 2;
+        int mNumTextures;
+        boolean mPointSpriteEnable;
+        boolean mVaryingColorEnable;
+        String mShader;
+        RenderScript mRS;
+
+        public enum EnvMode {
+            REPLACE (1),
+            MODULATE (2),
+            DECAL (3);
+
+            int mID;
+            EnvMode(int id) {
+                mID = id;
+            }
+        }
+
+        public enum Format {
+            ALPHA (1),
+            LUMINANCE_ALPHA (2),
+            RGB (3),
+            RGBA (4);
+
+            int mID;
+            Format(int id) {
+                mID = id;
+            }
+        }
+
+        private class Slot {
+            EnvMode env;
+            Format format;
+            Slot(EnvMode _env, Format _fmt) {
+                env = _env;
+                format = _fmt;
+            }
+        }
+        Slot[] mSlots;
+
+        private void buildShaderString() {
+            mShader  = "//rs_shader_internal\n";
+            mShader += "varying lowp vec4 varColor;\n";
+            mShader += "varying vec2 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) {
+            mRS = rs;
+            mSlots = new Slot[MAX_TEXTURE];
+            mPointSpriteEnable = false;
+        }
+
+        public Builder setTexture(EnvMode env, Format fmt, int slot)
+            throws IllegalArgumentException {
+            if((slot < 0) || (slot >= MAX_TEXTURE)) {
+                throw new IllegalArgumentException("MAX_TEXTURE exceeded.");
+            }
+            mSlots[slot] = new Slot(env, fmt);
+            return this;
+        }
+
+        public Builder setPointSpriteTexCoordinateReplacement(boolean enable) {
+            mPointSpriteEnable = enable;
+            return this;
+        }
+
+        public Builder setVaryingColor(boolean enable) {
+            mVaryingColorEnable = enable;
+            return this;
+        }
+
+        public ProgramFragmentFixedFunction create() {
+            InternalBuilder sb = new InternalBuilder(mRS);
+            mNumTextures = 0;
+            for(int i = 0; i < MAX_TEXTURE; i ++) {
+                if(mSlots[i] != null) {
+                    mNumTextures ++;
+                }
+            }
+            buildShaderString();
+            sb.setShader(mShader);
+
+            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.setX(1);
+                constType = typeBuilder.create();
+                sb.addConstant(constType);
+            }
+            for (int i = 0; i < mNumTextures; i ++) {
+                sb.addTexture(TextureType.TEXTURE_2D);
+            }
+
+            ProgramFragmentFixedFunction pf = sb.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.copyFrom(data);
+                pf.bindConstants(constantData, 0);
+            }
+            return pf;
+        }
+    }
+}
+
+
+
+