Minor cleanup

Change-Id: Ic042043c54631b5a5c74d20136addb2c08515ea9

3 files changed, 5 insertions, 442 deletions

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 19c7ddd..6f6a9bf 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -244,9 +244,6 @@ void Layer::setPerFrameData(hwc_layer_t* hwcl) {
     }
 }
 
-static inline uint16_t pack565(int r, int g, int b) {
-    return (r<<11)|(g<<5)|b;
-}
 void Layer::onDraw(const Region& clip) const
 {
     if (CC_UNLIKELY(mActiveBuffer == 0)) {
@@ -260,7 +257,8 @@ void Layer::onDraw(const Region& clip) const
 
         // figure out if there is something below us
         Region under;
-        const SurfaceFlinger::LayerVector& drawingLayers(mFlinger->mDrawingState.layersSortedByZ);
+        const SurfaceFlinger::LayerVector& drawingLayers(
+                mFlinger->mDrawingState.layersSortedByZ);
         const size_t count = drawingLayers.size();
         for (size_t i=0 ; i<count ; ++i) {
             const sp<LayerBase>& layer(drawingLayers[i]);
@@ -276,7 +274,7 @@ void Layer::onDraw(const Region& clip) const
         return;
     }
 
-    GLenum target = mSurfaceTexture->getCurrentTextureTarget();
+    const GLenum target = GL_TEXTURE_EXTERNAL_OES;
     glBindTexture(target, mTextureName);
     if (getFiltering() || needsFiltering() || isFixedSize() || isCropped()) {
         // TODO: we could be more subtle with isFixedSize()
@@ -439,9 +437,8 @@ void Layer::lockPageFlip(bool& recomputeVisibleRegions)
             recomputeVisibleRegions = true;
         }
 
-        const GLenum target(mSurfaceTexture->getCurrentTextureTarget());
-        glTexParameterx(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-        glTexParameterx(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
         // update the layer size and release freeze-lock
         const Layer::State& front(drawingState());
diff --git a/services/surfaceflinger/TextureManager.cpp b/services/surfaceflinger/TextureManager.cpp
deleted file mode 100644
index bb63c37..0000000
--- a/services/surfaceflinger/TextureManager.cpp
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * Copyright (C) 2010 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 <stdlib.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <utils/Errors.h>
-#include <utils/Log.h>
-
-#include <ui/GraphicBuffer.h>
-
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-
-#include <hardware/hardware.h>
-
-#include "clz.h"
-#include "DisplayHardware/DisplayHardware.h"
-#include "GLExtensions.h"
-#include "TextureManager.h"
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-TextureManager::TextureManager()
-    : mGLExtensions(GLExtensions::getInstance())
-{
-}
-
-GLenum TextureManager::getTextureTarget(const Image* image) {
-#if defined(GL_OES_EGL_image_external)
-    switch (image->target) {
-        case Texture::TEXTURE_EXTERNAL:
-            return GL_TEXTURE_EXTERNAL_OES;
-    }
-#endif
-    return GL_TEXTURE_2D;
-}
-
-status_t TextureManager::initTexture(Texture* texture)
-{
-    if (texture->name != -1UL)
-        return INVALID_OPERATION;
-
-    GLuint textureName = -1;
-    glGenTextures(1, &textureName);
-    texture->name = textureName;
-    texture->width = 0;
-    texture->height = 0;
-
-    const GLenum target = GL_TEXTURE_2D;
-    glBindTexture(target, textureName);
-    glTexParameterx(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-    glTexParameterx(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-    glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-
-    return NO_ERROR;
-}
-
-status_t TextureManager::initTexture(Image* pImage, int32_t format)
-{
-    if (pImage->name != -1UL)
-        return INVALID_OPERATION;
-
-    GLuint textureName = -1;
-    glGenTextures(1, &textureName);
-    pImage->name = textureName;
-    pImage->width = 0;
-    pImage->height = 0;
-
-    GLenum target = GL_TEXTURE_2D;
-#if defined(GL_OES_EGL_image_external)
-    if (GLExtensions::getInstance().haveTextureExternal()) {
-        if (format && isYuvFormat(format)) {
-            target = GL_TEXTURE_EXTERNAL_OES;
-            pImage->target = Texture::TEXTURE_EXTERNAL;
-        }
-    }
-#endif
-
-    glBindTexture(target, textureName);
-    glTexParameterx(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-    glTexParameterx(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-    glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-
-    return NO_ERROR;
-}
-
-bool TextureManager::isSupportedYuvFormat(int format)
-{
-    switch (format) {
-    case HAL_PIXEL_FORMAT_YV12:
-        return true;
-    }
-    return false;
-}
-
-bool TextureManager::isYuvFormat(int format)
-{
-    switch (format) {
-    // supported YUV formats
-    case HAL_PIXEL_FORMAT_YV12:
-    // Legacy/deprecated YUV formats
-    case HAL_PIXEL_FORMAT_YCbCr_422_SP:
-    case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-    case HAL_PIXEL_FORMAT_YCbCr_422_I:
-        return true;
-    }
-
-    // Any OEM format needs to be considered
-    if (format>=0x100 && format<=0x1FF)
-        return true;
-
-    return false;
-}
-
-status_t TextureManager::initEglImage(Image* pImage,
-        EGLDisplay dpy, const sp<GraphicBuffer>& buffer)
-{
-    status_t err = NO_ERROR;
-    if (!pImage->dirty) return err;
-
-    // free the previous image
-    if (pImage->image != EGL_NO_IMAGE_KHR) {
-        eglDestroyImageKHR(dpy, pImage->image);
-        pImage->image = EGL_NO_IMAGE_KHR;
-    }
-
-    // construct an EGL_NATIVE_BUFFER_ANDROID
-    ANativeWindowBuffer* clientBuf = buffer->getNativeBuffer();
-
-    // create the new EGLImageKHR
-    const EGLint attrs[] = {
-            EGL_IMAGE_PRESERVED_KHR,    EGL_TRUE,
-            EGL_NONE,                   EGL_NONE
-    };
-    pImage->image = eglCreateImageKHR(
-            dpy, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
-            (EGLClientBuffer)clientBuf, attrs);
-
-    if (pImage->image != EGL_NO_IMAGE_KHR) {
-        if (pImage->name == -1UL) {
-            initTexture(pImage, buffer->format);
-        }
-        const GLenum target = getTextureTarget(pImage);
-        glBindTexture(target, pImage->name);
-        glEGLImageTargetTexture2DOES(target, (GLeglImageOES)pImage->image);
-        GLint error = glGetError();
-        if (error != GL_NO_ERROR) {
-            LOGE("glEGLImageTargetTexture2DOES(%p) failed err=0x%04x",
-                    pImage->image, error);
-            err = INVALID_OPERATION;
-        } else {
-            // Everything went okay!
-            pImage->dirty  = false;
-            pImage->width  = clientBuf->width;
-            pImage->height = clientBuf->height;
-        }
-    } else {
-        LOGE("eglCreateImageKHR() failed. err=0x%4x", eglGetError());
-        err = INVALID_OPERATION;
-    }
-    return err;
-}
-
-status_t TextureManager::loadTexture(Texture* texture,
-        const Region& dirty, const GGLSurface& t)
-{
-    if (texture->name == -1UL) {
-        status_t err = initTexture(texture);
-        LOGE_IF(err, "loadTexture failed in initTexture (%s)", strerror(err));
-        if (err != NO_ERROR) return err;
-    }
-
-    if (texture->target != Texture::TEXTURE_2D)
-        return INVALID_OPERATION;
-
-    glBindTexture(GL_TEXTURE_2D, texture->name);
-
-    /*
-     * In OpenGL ES we can't specify a stride with glTexImage2D (however,
-     * GL_UNPACK_ALIGNMENT is a limited form of stride).
-     * So if the stride here isn't representable with GL_UNPACK_ALIGNMENT, we
-     * need to do something reasonable (here creating a bigger texture).
-     *
-     * extra pixels = (((stride - width) * pixelsize) / GL_UNPACK_ALIGNMENT);
-     *
-     * This situation doesn't happen often, but some h/w have a limitation
-     * for their framebuffer (eg: must be multiple of 8 pixels), and
-     * we need to take that into account when using these buffers as
-     * textures.
-     *
-     * This should never be a problem with POT textures
-     */
-
-    int unpack = __builtin_ctz(t.stride * bytesPerPixel(t.format));
-    unpack = 1 << ((unpack > 3) ? 3 : unpack);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, unpack);
-
-    /*
-     * round to POT if needed
-     */
-    if (!mGLExtensions.haveNpot()) {
-        texture->NPOTAdjust = true;
-    }
-
-    if (texture->NPOTAdjust) {
-        // find the smallest power-of-two that will accommodate our surface
-        texture->potWidth  = 1 << (31 - clz(t.width));
-        texture->potHeight = 1 << (31 - clz(t.height));
-        if (texture->potWidth  < t.width)  texture->potWidth  <<= 1;
-        if (texture->potHeight < t.height) texture->potHeight <<= 1;
-        texture->wScale = float(t.width)  / texture->potWidth;
-        texture->hScale = float(t.height) / texture->potHeight;
-    } else {
-        texture->potWidth  = t.width;
-        texture->potHeight = t.height;
-    }
-
-    Rect bounds(dirty.bounds());
-    GLvoid* data = 0;
-    if (texture->width != t.width || texture->height != t.height) {
-        texture->width  = t.width;
-        texture->height = t.height;
-
-        // texture size changed, we need to create a new one
-        bounds.set(Rect(t.width, t.height));
-        if (t.width  == texture->potWidth &&
-            t.height == texture->potHeight) {
-            // we can do it one pass
-            data = t.data;
-        }
-
-        if (t.format == HAL_PIXEL_FORMAT_RGB_565) {
-            glTexImage2D(GL_TEXTURE_2D, 0,
-                    GL_RGB, texture->potWidth, texture->potHeight, 0,
-                    GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data);
-        } else if (t.format == HAL_PIXEL_FORMAT_RGBA_4444) {
-            glTexImage2D(GL_TEXTURE_2D, 0,
-                    GL_RGBA, texture->potWidth, texture->potHeight, 0,
-                    GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data);
-        } else if (t.format == HAL_PIXEL_FORMAT_RGBA_8888 ||
-                   t.format == HAL_PIXEL_FORMAT_RGBX_8888) {
-            glTexImage2D(GL_TEXTURE_2D, 0,
-                    GL_RGBA, texture->potWidth, texture->potHeight, 0,
-                    GL_RGBA, GL_UNSIGNED_BYTE, data);
-        } else if (isSupportedYuvFormat(t.format)) {
-            // just show the Y plane of YUV buffers
-            glTexImage2D(GL_TEXTURE_2D, 0,
-                    GL_LUMINANCE, texture->potWidth, texture->potHeight, 0,
-                    GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
-        } else {
-            // oops, we don't handle this format!
-            LOGE("texture=%d, using format %d, which is not "
-                 "supported by the GL", texture->name, t.format);
-        }
-    }
-    if (!data) {
-        if (t.format == HAL_PIXEL_FORMAT_RGB_565) {
-            glTexSubImage2D(GL_TEXTURE_2D, 0,
-                    0, bounds.top, t.width, bounds.height(),
-                    GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
-                    t.data + bounds.top*t.stride*2);
-        } else if (t.format == HAL_PIXEL_FORMAT_RGBA_4444) {
-            glTexSubImage2D(GL_TEXTURE_2D, 0,
-                    0, bounds.top, t.width, bounds.height(),
-                    GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4,
-                    t.data + bounds.top*t.stride*2);
-        } else if (t.format == HAL_PIXEL_FORMAT_RGBA_8888 ||
-                   t.format == HAL_PIXEL_FORMAT_RGBX_8888) {
-            glTexSubImage2D(GL_TEXTURE_2D, 0,
-                    0, bounds.top, t.width, bounds.height(),
-                    GL_RGBA, GL_UNSIGNED_BYTE,
-                    t.data + bounds.top*t.stride*4);
-        } else if (isSupportedYuvFormat(t.format)) {
-            // just show the Y plane of YUV buffers
-            glTexSubImage2D(GL_TEXTURE_2D, 0,
-                    0, bounds.top, t.width, bounds.height(),
-                    GL_LUMINANCE, GL_UNSIGNED_BYTE,
-                    t.data + bounds.top*t.stride);
-        }
-    }
-    return NO_ERROR;
-}
-
-void TextureManager::activateTexture(const Texture& texture, bool filter)
-{
-    const GLenum target = getTextureTarget(&texture);
-    if (target == GL_TEXTURE_2D) {
-        glBindTexture(GL_TEXTURE_2D, texture.name);
-        glEnable(GL_TEXTURE_2D);
-#if defined(GL_OES_EGL_image_external)
-        if (GLExtensions::getInstance().haveTextureExternal()) {
-            glDisable(GL_TEXTURE_EXTERNAL_OES);
-        }
-    } else {
-        glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture.name);
-        glEnable(GL_TEXTURE_EXTERNAL_OES);
-        glDisable(GL_TEXTURE_2D);
-#endif
-    }
-
-    if (filter) {
-        glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-        glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    } else {
-        glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    }
-}
-
-void TextureManager::deactivateTextures()
-{
-    glDisable(GL_TEXTURE_2D);
-#if defined(GL_OES_EGL_image_external)
-    if (GLExtensions::getInstance().haveTextureExternal()) {
-        glDisable(GL_TEXTURE_EXTERNAL_OES);
-    }
-#endif
-}
-
-// ---------------------------------------------------------------------------
-
-}; // namespace android
diff --git a/services/surfaceflinger/TextureManager.h b/services/surfaceflinger/TextureManager.h
deleted file mode 100644
index 18c4348..0000000
--- a/services/surfaceflinger/TextureManager.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright (C) 2010 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.
- */
-
-#ifndef ANDROID_TEXTURE_MANAGER_H
-#define ANDROID_TEXTURE_MANAGER_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-#include <GLES/gl.h>
-
-#include <ui/Region.h>
-
-#include <pixelflinger/pixelflinger.h>
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-class GLExtensions;
-class GraphicBuffer;
-
-// ---------------------------------------------------------------------------
-
-struct Image {
-    enum { TEXTURE_2D=0, TEXTURE_EXTERNAL=1 };
-    Image() : name(-1U), image(EGL_NO_IMAGE_KHR), width(0), height(0),
-        dirty(1), target(TEXTURE_2D) { }
-    GLuint        name;
-    EGLImageKHR   image;
-    GLuint        width;
-    GLuint        height;
-    unsigned      dirty     : 1;
-    unsigned      target    : 1;
-};
-
-struct Texture : public Image {
-    Texture() : Image(), NPOTAdjust(0) { }
-    GLuint      potWidth;
-    GLuint      potHeight;
-    GLfloat     wScale;
-    GLfloat     hScale;
-    unsigned    NPOTAdjust  : 1;
-};
-
-// ---------------------------------------------------------------------------
-
-class TextureManager {
-    const GLExtensions& mGLExtensions;
-    static status_t initTexture(Image* texture, int32_t format);
-    static status_t initTexture(Texture* texture);
-    static bool isSupportedYuvFormat(int format);
-    static bool isYuvFormat(int format);
-    static GLenum getTextureTarget(const Image* pImage);
-public:
-
-    TextureManager();
-
-    // load bitmap data into the active buffer
-    status_t loadTexture(Texture* texture,
-            const Region& dirty, const GGLSurface& t);
-
-    // make active buffer an EGLImage if needed
-    status_t initEglImage(Image* texture,
-            EGLDisplay dpy, const sp<GraphicBuffer>& buffer);
-
-    // activate a texture
-    static void activateTexture(const Texture& texture, bool filter);
-
-    // deactivate a texture
-    static void deactivateTextures();
-};
-
-// ---------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_TEXTURE_MANAGER_H