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-rw-r--r--libs/hwui/Dither.cpp98
1 files changed, 0 insertions, 98 deletions
diff --git a/libs/hwui/Dither.cpp b/libs/hwui/Dither.cpp
deleted file mode 100644
index ec2013e27401..000000000000
--- a/libs/hwui/Dither.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Copyright (C) 2012 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 "Caches.h"
-#include "Dither.h"
-
-namespace android {
-namespace uirenderer {
-
-///////////////////////////////////////////////////////////////////////////////
-// Lifecycle
-///////////////////////////////////////////////////////////////////////////////
-
-Dither::Dither(Caches& caches)
- : mCaches(caches)
- , mInitialized(false)
- , mDitherTexture(0) {
-}
-
-void Dither::bindDitherTexture() {
- if (!mInitialized) {
- glGenTextures(1, &mDitherTexture);
- mCaches.textureState().bindTexture(mDitherTexture);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- if (mCaches.extensions().hasFloatTextures()) {
- // We use a R16F texture, let's remap the alpha channel to the
- // red channel to avoid changing the shader sampling code on GL ES 3.0+
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_RED);
-
- float dither = 1.0f / (255.0f * DITHER_KERNEL_SIZE * DITHER_KERNEL_SIZE);
- const GLfloat pattern[] = {
- 0 * dither, 8 * dither, 2 * dither, 10 * dither,
- 12 * dither, 4 * dither, 14 * dither, 6 * dither,
- 3 * dither, 11 * dither, 1 * dither, 9 * dither,
- 15 * dither, 7 * dither, 13 * dither, 5 * dither
- };
-
- glTexImage2D(GL_TEXTURE_2D, 0, GL_R16F, DITHER_KERNEL_SIZE, DITHER_KERNEL_SIZE, 0,
- GL_RED, GL_FLOAT, &pattern);
- } else {
- const uint8_t pattern[] = {
- 0, 8, 2, 10,
- 12, 4, 14, 6,
- 3, 11, 1, 9,
- 15, 7, 13, 5
- };
-
- glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, DITHER_KERNEL_SIZE, DITHER_KERNEL_SIZE, 0,
- GL_ALPHA, GL_UNSIGNED_BYTE, &pattern);
- }
-
- mInitialized = true;
- } else {
- mCaches.textureState().bindTexture(mDitherTexture);
- }
-}
-
-void Dither::clear() {
- if (mInitialized) {
- mCaches.textureState().deleteTexture(mDitherTexture);
- mInitialized = false;
- }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// Program management
-///////////////////////////////////////////////////////////////////////////////
-
-void Dither::setupProgram(Program& program, GLuint* textureUnit) {
- GLuint textureSlot = (*textureUnit)++;
- mCaches.textureState().activateTexture(textureSlot);
-
- bindDitherTexture();
-
- glUniform1i(program.getUniform("ditherSampler"), textureSlot);
-}
-
-}; // namespace uirenderer
-}; // namespace android