1 files changed, 0 insertions, 147 deletions
diff --git a/libs/hwui/renderstate/TextureState.cpp b/libs/hwui/renderstate/TextureState.cpp
deleted file mode 100644
index 470b4f5de97f..000000000000
--- a/libs/hwui/renderstate/TextureState.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-#include "renderstate/TextureState.h"
-
-#include "Caches.h"
-#include "utils/TraceUtils.h"
-
-#include <GLES3/gl3.h>
-#include <SkBitmap.h>
-#include <SkCanvas.h>
-#include <memory>
-
-namespace android {
-namespace uirenderer {
-
-// Width of mShadowLutTexture, defines how accurate the shadow alpha lookup table is
-static const int SHADOW_LUT_SIZE = 128;
-
-// Must define as many texture units as specified by kTextureUnitsCount
-const GLenum kTextureUnits[] = {GL_TEXTURE0, GL_TEXTURE1, GL_TEXTURE2, GL_TEXTURE3};
-
-TextureState::TextureState() : mTextureUnit(0) {
-    glActiveTexture(kTextureUnits[0]);
-    resetBoundTextures();
-
-    GLint maxTextureUnits;
-    glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
-    LOG_ALWAYS_FATAL_IF(maxTextureUnits < kTextureUnitsCount,
-                        "At least %d texture units are required!", kTextureUnitsCount);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-}
-
-TextureState::~TextureState() {
-    if (mShadowLutTexture != nullptr) {
-        mShadowLutTexture->deleteTexture();
-    }
-}
-
-/**
- * Maps shadow geometry 'alpha' varying (1 for darkest, 0 for transparent) to
- * darkness at that spot. Input values of 0->1 should be mapped within the same
- * range, but can affect the curve for a different visual falloff.
- *
- * This is used to populate the shadow LUT texture for quick lookup in the
- * shadow shader.
- */
-static float computeShadowOpacity(float ratio) {
-    // exponential falloff function provided by UX
-    float val = 1 - ratio;
-    return exp(-val * val * 4.0) - 0.018;
-}
-
-void TextureState::constructTexture(Caches& caches) {
-    if (mShadowLutTexture == nullptr) {
-        mShadowLutTexture.reset(new Texture(caches));
-
-        unsigned char bytes[SHADOW_LUT_SIZE];
-        for (int i = 0; i < SHADOW_LUT_SIZE; i++) {
-            float inputRatio = i / (SHADOW_LUT_SIZE - 1.0f);
-            bytes[i] = computeShadowOpacity(inputRatio) * 255;
-        }
-        mShadowLutTexture->upload(GL_ALPHA, SHADOW_LUT_SIZE, 1, GL_ALPHA, GL_UNSIGNED_BYTE, &bytes);
-        mShadowLutTexture->setFilter(GL_LINEAR);
-        mShadowLutTexture->setWrap(GL_CLAMP_TO_EDGE);
-    }
-}
-
-void TextureState::activateTexture(GLuint textureUnit) {
-    LOG_ALWAYS_FATAL_IF(textureUnit >= kTextureUnitsCount,
-                        "Tried to use texture unit index %d, only %d exist", textureUnit,
-                        kTextureUnitsCount);
-    if (mTextureUnit != textureUnit) {
-        glActiveTexture(kTextureUnits[textureUnit]);
-        mTextureUnit = textureUnit;
-    }
-}
-
-void TextureState::resetActiveTexture() {
-    mTextureUnit = -1;
-}
-
-void TextureState::bindTexture(GLuint texture) {
-    if (mBoundTextures[mTextureUnit] != texture) {
-        glBindTexture(GL_TEXTURE_2D, texture);
-        mBoundTextures[mTextureUnit] = texture;
-    }
-}
-
-void TextureState::bindTexture(GLenum target, GLuint texture) {
-    if (target == GL_TEXTURE_2D) {
-        bindTexture(texture);
-    } else {
-        // GLConsumer directly calls glBindTexture() with
-        // target=GL_TEXTURE_EXTERNAL_OES, don't cache this target
-        // since the cached state could be stale
-        glBindTexture(target, texture);
-    }
-}
-
-void TextureState::deleteTexture(GLuint texture) {
-    // When glDeleteTextures() is called on a currently bound texture,
-    // OpenGL ES specifies that the texture is then considered unbound
-    // Consider the following series of calls:
-    //
-    // glGenTextures -> creates texture name 2
-    // glBindTexture(2)
-    // glDeleteTextures(2) -> 2 is now unbound
-    // glGenTextures -> can return 2 again
-    //
-    // If we don't call glBindTexture(2) after the second glGenTextures
-    // call, any texture operation will be performed on the default
-    // texture (name=0)
-
-    unbindTexture(texture);
-
-    glDeleteTextures(1, &texture);
-}
-
-void TextureState::resetBoundTextures() {
-    for (int i = 0; i < kTextureUnitsCount; i++) {
-        mBoundTextures[i] = 0;
-    }
-}
-
-void TextureState::unbindTexture(GLuint texture) {
-    for (int i = 0; i < kTextureUnitsCount; i++) {
-        if (mBoundTextures[i] == texture) {
-            mBoundTextures[i] = 0;
-        }
-    }
-}
-
-} /* namespace uirenderer */
-} /* namespace android */