Add AHB and Pixel- Formats for R8
Add AHARDWAREBUFFER_FORMAT_R8_UNORM and PIXEL_FORMAT_R_8. These will be
used for an alpha 8 buffer representing the screen decorations.
Enum value matches AIDL R_8 in
I6f6b7f22e76609151a413ca6a6dbf55bd91911dd.
Bug: 193170859
Test: make
Change-Id: I4846327b29736ee811672801a683deb287342a8e
diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index d429551..cb3361b 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -30,7 +30,7 @@
#include <private/android/AHardwareBufferHelpers.h>
#include <android/hardware/graphics/common/1.1/types.h>
-
+#include <aidl/android/hardware/graphics/common/PixelFormat.h>
static constexpr int kFdBufferSize = 128 * sizeof(int); // 128 ints
@@ -588,8 +588,12 @@
"HAL and AHardwareBuffer pixel format don't match");
static_assert(HAL_PIXEL_FORMAT_YCBCR_422_I == AHARDWAREBUFFER_FORMAT_YCbCr_422_I,
"HAL and AHardwareBuffer pixel format don't match");
+ static_assert(static_cast<int>(aidl::android::hardware::graphics::common::PixelFormat::R_8) ==
+ AHARDWAREBUFFER_FORMAT_R8_UNORM,
+ "HAL and AHardwareBuffer pixel format don't match");
switch (format) {
+ case AHARDWAREBUFFER_FORMAT_R8_UNORM:
case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
@@ -641,6 +645,8 @@
uint32_t AHardwareBuffer_bytesPerPixel(uint32_t format) {
switch (format) {
+ case AHARDWAREBUFFER_FORMAT_R8_UNORM:
+ return 1;
case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
case AHARDWAREBUFFER_FORMAT_D16_UNORM:
return 2;
diff --git a/libs/nativewindow/include/android/hardware_buffer.h b/libs/nativewindow/include/android/hardware_buffer.h
index d5e7cb2..6f1f04d 100644
--- a/libs/nativewindow/include/android/hardware_buffer.h
+++ b/libs/nativewindow/include/android/hardware_buffer.h
@@ -158,6 +158,13 @@
* cube-maps or multi-layered textures.
*/
AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420 = 0x23,
+
+ /**
+ * Corresponding formats:
+ * Vulkan: VK_FORMAT_R8_UNORM
+ * OpenGL ES: GR_GL_R8
+ */
+ AHARDWAREBUFFER_FORMAT_R8_UNORM = 0x38,
};
/**
diff --git a/libs/ui/DebugUtils.cpp b/libs/ui/DebugUtils.cpp
index 1f006ce..073da89 100644
--- a/libs/ui/DebugUtils.cpp
+++ b/libs/ui/DebugUtils.cpp
@@ -302,6 +302,8 @@
return std::string("RGB_565");
case android::PIXEL_FORMAT_BGRA_8888:
return std::string("BGRA_8888");
+ case android::PIXEL_FORMAT_R_8:
+ return std::string("R_8");
default:
return StringPrintf("Unknown %#08x", format);
}
diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp
index d1925cb..799fbc9 100644
--- a/libs/ui/PixelFormat.cpp
+++ b/libs/ui/PixelFormat.cpp
@@ -35,6 +35,8 @@
case PIXEL_FORMAT_RGBA_5551:
case PIXEL_FORMAT_RGBA_4444:
return 2;
+ case PIXEL_FORMAT_R_8:
+ return 1;
}
return 0;
}
diff --git a/libs/ui/include/ui/PixelFormat.h b/libs/ui/include/ui/PixelFormat.h
index 91ff39e..f422ce4 100644
--- a/libs/ui/include/ui/PixelFormat.h
+++ b/libs/ui/include/ui/PixelFormat.h
@@ -62,6 +62,7 @@
PIXEL_FORMAT_RGBA_4444 = 7, // 16-bit ARGB
PIXEL_FORMAT_RGBA_FP16 = HAL_PIXEL_FORMAT_RGBA_FP16, // 64-bit RGBA
PIXEL_FORMAT_RGBA_1010102 = HAL_PIXEL_FORMAT_RGBA_1010102, // 32-bit RGBA
+ PIXEL_FORMAT_R_8 = 0x38,
};
typedef int32_t PixelFormat;
diff --git a/services/surfaceflinger/BufferLayer.cpp b/services/surfaceflinger/BufferLayer.cpp
index 494b61c..64ddd68 100644
--- a/services/surfaceflinger/BufferLayer.cpp
+++ b/services/surfaceflinger/BufferLayer.cpp
@@ -564,15 +564,16 @@
// hardware.h, instead of using hard-coded values here.
#define HARDWARE_IS_DEVICE_FORMAT(f) ((f) >= 0x100 && (f) <= 0x1FF)
-bool BufferLayer::getOpacityForFormat(uint32_t format) {
+bool BufferLayer::getOpacityForFormat(PixelFormat format) {
if (HARDWARE_IS_DEVICE_FORMAT(format)) {
return true;
}
switch (format) {
- case HAL_PIXEL_FORMAT_RGBA_8888:
- case HAL_PIXEL_FORMAT_BGRA_8888:
- case HAL_PIXEL_FORMAT_RGBA_FP16:
- case HAL_PIXEL_FORMAT_RGBA_1010102:
+ case PIXEL_FORMAT_RGBA_8888:
+ case PIXEL_FORMAT_BGRA_8888:
+ case PIXEL_FORMAT_RGBA_FP16:
+ case PIXEL_FORMAT_RGBA_1010102:
+ case PIXEL_FORMAT_R_8:
return false;
}
// in all other case, we have no blending (also for unknown formats)
diff --git a/services/surfaceflinger/BufferLayer.h b/services/surfaceflinger/BufferLayer.h
index a4c21f4..34d11ac 100644
--- a/services/surfaceflinger/BufferLayer.h
+++ b/services/surfaceflinger/BufferLayer.h
@@ -153,7 +153,7 @@
bool onPreComposition(nsecs_t) override;
void preparePerFrameCompositionState() override;
- static bool getOpacityForFormat(uint32_t format);
+ static bool getOpacityForFormat(PixelFormat format);
// from graphics API
const uint32_t mTextureName;
