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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /media/omx-plugin/include/ics/ui/PixelFormat.h
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Add m-esr52 at 52.6.0
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+/*
+ * Copyright (C) 2005 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.
+ */
+
+//
+
+// Pixel formats used across the system.
+// These formats might not all be supported by all renderers, for instance
+// skia or SurfaceFlinger are not required to support all of these formats
+// (either as source or destination)
+
+// XXX: we should consolidate these formats and skia's
+
+#ifndef UI_PIXELFORMAT_H
+#define UI_PIXELFORMAT_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <pixelflinger/format.h>
+#include <hardware/hardware.h>
+
+namespace android {
+
+enum {
+ //
+ // these constants need to match those
+ // in graphics/PixelFormat.java & pixelflinger/format.h
+ //
+ PIXEL_FORMAT_UNKNOWN = 0,
+ PIXEL_FORMAT_NONE = 0,
+
+ // logical pixel formats used by the SurfaceFlinger -----------------------
+ PIXEL_FORMAT_CUSTOM = -4,
+ // Custom pixel-format described by a PixelFormatInfo structure
+
+ PIXEL_FORMAT_TRANSLUCENT = -3,
+ // System chooses a format that supports translucency (many alpha bits)
+
+ PIXEL_FORMAT_TRANSPARENT = -2,
+ // System chooses a format that supports transparency
+ // (at least 1 alpha bit)
+
+ PIXEL_FORMAT_OPAQUE = -1,
+ // System chooses an opaque format (no alpha bits required)
+
+ // real pixel formats supported for rendering -----------------------------
+
+ PIXEL_FORMAT_RGBA_8888 = HAL_PIXEL_FORMAT_RGBA_8888, // 4x8-bit RGBA
+ PIXEL_FORMAT_RGBX_8888 = HAL_PIXEL_FORMAT_RGBX_8888, // 4x8-bit RGB0
+ PIXEL_FORMAT_RGB_888 = HAL_PIXEL_FORMAT_RGB_888, // 3x8-bit RGB
+ PIXEL_FORMAT_RGB_565 = HAL_PIXEL_FORMAT_RGB_565, // 16-bit RGB
+ PIXEL_FORMAT_BGRA_8888 = HAL_PIXEL_FORMAT_BGRA_8888, // 4x8-bit BGRA
+ PIXEL_FORMAT_RGBA_5551 = HAL_PIXEL_FORMAT_RGBA_5551, // 16-bit ARGB
+ PIXEL_FORMAT_RGBA_4444 = HAL_PIXEL_FORMAT_RGBA_4444, // 16-bit ARGB
+ PIXEL_FORMAT_A_8 = GGL_PIXEL_FORMAT_A_8, // 8-bit A
+ PIXEL_FORMAT_L_8 = GGL_PIXEL_FORMAT_L_8, // 8-bit L (R=G=B=L)
+ PIXEL_FORMAT_LA_88 = GGL_PIXEL_FORMAT_LA_88, // 16-bit LA
+ PIXEL_FORMAT_RGB_332 = GGL_PIXEL_FORMAT_RGB_332, // 8-bit RGB
+
+ // New formats can be added if they're also defined in
+ // pixelflinger/format.h
+};
+
+typedef int32_t PixelFormat;
+
+struct PixelFormatInfo
+{
+ enum {
+ INDEX_ALPHA = 0,
+ INDEX_RED = 1,
+ INDEX_GREEN = 2,
+ INDEX_BLUE = 3
+ };
+
+ enum { // components
+ ALPHA = 1,
+ RGB = 2,
+ RGBA = 3,
+ LUMINANCE = 4,
+ LUMINANCE_ALPHA = 5,
+ OTHER = 0xFF
+ };
+
+ struct szinfo {
+ uint8_t h;
+ uint8_t l;
+ };
+
+ inline PixelFormatInfo() : version(sizeof(PixelFormatInfo)) { }
+ size_t getScanlineSize(unsigned int width) const;
+ size_t getSize(size_t ci) const {
+ return (ci <= 3) ? (cinfo[ci].h - cinfo[ci].l) : 0;
+ }
+ size_t version;
+ PixelFormat format;
+ size_t bytesPerPixel;
+ size_t bitsPerPixel;
+ union {
+ szinfo cinfo[4];
+ struct {
+ uint8_t h_alpha;
+ uint8_t l_alpha;
+ uint8_t h_red;
+ uint8_t l_red;
+ uint8_t h_green;
+ uint8_t l_green;
+ uint8_t h_blue;
+ uint8_t l_blue;
+ };
+ };
+ uint8_t components;
+ uint8_t reserved0[3];
+ uint32_t reserved1;
+};
+
+// Consider caching the results of these functions are they're not
+// guaranteed to be fast.
+ssize_t bytesPerPixel(PixelFormat format);
+ssize_t bitsPerPixel(PixelFormat format);
+status_t getPixelFormatInfo(PixelFormat format, PixelFormatInfo* info);
+
+}; // namespace android
+
+#endif // UI_PIXELFORMAT_H