Add fp16 pixel and window formats

Bug: 32984164
Test: compile
Change-Id: I8303afbf857796295a280c0d9438a3c403a11437

8 files changed, 22 insertions, 0 deletions

diff --git a/include/android/native_window.h b/include/android/native_window.h
index b60b9f1d9c..b017a25208 100644
--- a/include/android/native_window.h
+++ b/include/android/native_window.h
@@ -38,12 +38,18 @@ extern "C" {
  * Pixel formats that a window can use.
  */
 enum {
+    // NOTE: these values must match the values from graphics/common/x.x/types.hal
+
     /** Red: 8 bits, Green: 8 bits, Blue: 8 bits, Alpha: 8 bits. **/
     WINDOW_FORMAT_RGBA_8888          = 1,
     /** Red: 8 bits, Green: 8 bits, Blue: 8 bits, Unused: 8 bits. **/
     WINDOW_FORMAT_RGBX_8888          = 2,
     /** Red: 5 bits, Green: 6 bits, Blue: 5 bits. **/
     WINDOW_FORMAT_RGB_565            = 4,
+    /** Red: 16 bits, Green: 16 bits, Blue: 16 bits, Alpha: 16 bits. **/
+    WINDOW_FORMAT_RGBA_FP16          = 0x16,
+    /** Red: 16 bits, Green: 16 bits, Blue: 16 bits, Unused: 16 bits. **/
+    WINDOW_FORMAT_RGBX_FP16          = 0x17,
 };
 
 struct ANativeWindow;
diff --git a/include/ui/PixelFormat.h b/include/ui/PixelFormat.h
index f26fecb8b1..99c6663ded 100644
--- a/include/ui/PixelFormat.h
+++ b/include/ui/PixelFormat.h
@@ -60,6 +60,8 @@ enum {
     PIXEL_FORMAT_BGRA_8888   = HAL_PIXEL_FORMAT_BGRA_8888,   // 4x8-bit BGRA
     PIXEL_FORMAT_RGBA_5551   = 6,                            // 16-bit ARGB
     PIXEL_FORMAT_RGBA_4444   = 7,                            // 16-bit ARGB
+    PIXEL_FORMAT_RGBA_FP16   = HAL_PIXEL_FORMAT_RGBA_FP16,   // 64-bit RGBA
+    PIXEL_FORMAT_RGBX_FP16   = HAL_PIXEL_FORMAT_RGBX_FP16,   // 64-bit RGB0
 };
 
 typedef int32_t PixelFormat;
diff --git a/libs/gui/CpuConsumer.cpp b/libs/gui/CpuConsumer.cpp
index 839316021e..4acf618a63 100644
--- a/libs/gui/CpuConsumer.cpp
+++ b/libs/gui/CpuConsumer.cpp
@@ -64,6 +64,8 @@ static bool isPossiblyYUV(PixelFormat format) {
     switch (static_cast<int>(format)) {
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
+        case HAL_PIXEL_FORMAT_RGBA_FP16:
+        case HAL_PIXEL_FORMAT_RGBX_FP16:
         case HAL_PIXEL_FORMAT_RGB_888:
         case HAL_PIXEL_FORMAT_RGB_565:
         case HAL_PIXEL_FORMAT_BGRA_8888:
diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
index 10e999c228..9f0398d77e 100644
--- a/libs/gui/GLConsumer.cpp
+++ b/libs/gui/GLConsumer.cpp
@@ -856,6 +856,8 @@ void GLConsumer::computeTransformMatrix(float outTransform[16],
             switch (buf->getPixelFormat()) {
                 case PIXEL_FORMAT_RGBA_8888:
                 case PIXEL_FORMAT_RGBX_8888:
+                case PIXEL_FORMAT_RGBA_FP16:
+                case PIXEL_FORMAT_RGBX_FP16:
                 case PIXEL_FORMAT_RGB_888:
                 case PIXEL_FORMAT_RGB_565:
                 case PIXEL_FORMAT_BGRA_8888:
diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp
index cab1dde3fa..3ceb6380e5 100644
--- a/libs/ui/PixelFormat.cpp
+++ b/libs/ui/PixelFormat.cpp
@@ -22,6 +22,9 @@ namespace android {
 
 uint32_t bytesPerPixel(PixelFormat format) {
     switch (format) {
+        case PIXEL_FORMAT_RGBA_FP16:
+        case PIXEL_FORMAT_RGBX_FP16:
+            return 8;
         case PIXEL_FORMAT_RGBA_8888:
         case PIXEL_FORMAT_RGBX_8888:
         case PIXEL_FORMAT_BGRA_8888:
@@ -38,6 +41,9 @@ uint32_t bytesPerPixel(PixelFormat format) {
 
 uint32_t bitsPerPixel(PixelFormat format) {
     switch (format) {
+        case PIXEL_FORMAT_RGBA_FP16:
+        case PIXEL_FORMAT_RGBX_FP16:
+            return 64;
         case PIXEL_FORMAT_RGBA_8888:
         case PIXEL_FORMAT_RGBX_8888:
         case PIXEL_FORMAT_BGRA_8888:
diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index d5a02e35de..55a6093143 100644
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -475,6 +475,7 @@ EGLSurface eglCreateWindowSurface(  EGLDisplay dpy, EGLConfig config,
         // modify the EGLconfig's format before setting the native window's
         // format.
 
+        // TODO: Add support for HAL_PIXEL_FORMAT_RGBA_FP16
         // by default, just pick RGBA_8888
         EGLint format = HAL_PIXEL_FORMAT_RGBA_8888;
         android_dataspace dataSpace = HAL_DATASPACE_UNKNOWN;
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.cpp b/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.cpp
index 2102457994..c40a58c3a3 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.cpp
@@ -1159,6 +1159,8 @@ static String8 getFormatStr(PixelFormat format) {
     switch (format) {
     case PIXEL_FORMAT_RGBA_8888:    return String8("RGBA_8888");
     case PIXEL_FORMAT_RGBX_8888:    return String8("RGBx_8888");
+    case PIXEL_FORMAT_RGBA_FP16:    return String8("RGBA_FP16");
+    case PIXEL_FORMAT_RGBX_FP16:    return String8("RGBx_FP16");
     case PIXEL_FORMAT_RGB_888:      return String8("RGB_888");
     case PIXEL_FORMAT_RGB_565:      return String8("RGB_565");
     case PIXEL_FORMAT_BGRA_8888:    return String8("BGRA_8888");
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 20c0261017..89f968f6a0 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1187,6 +1187,7 @@ bool Layer::getOpacityForFormat(uint32_t format) {
     switch (format) {
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_BGRA_8888:
+        case HAL_PIXEL_FORMAT_RGBA_FP16:
             return false;
     }
     // in all other case, we have no blending (also for unknown formats)