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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.
*/
#ifndef ANDROID_PIXELFLINGER_FORMAT_H
#define ANDROID_PIXELFLINGER_FORMAT_H
#include <stdint.h>
#include <sys/types.h>
enum GGLPixelFormat {
// these constants need to match those
// in graphics/PixelFormat.java, ui/PixelFormat.h, BlitHardware.h
GGL_PIXEL_FORMAT_UNKNOWN = 0,
GGL_PIXEL_FORMAT_NONE = 0,
GGL_PIXEL_FORMAT_RGBA_8888 = 1, // 4x8-bit ARGB
GGL_PIXEL_FORMAT_RGBX_8888 = 2, // 3x8-bit RGB stored in 32-bit chunks
GGL_PIXEL_FORMAT_RGB_888 = 3, // 3x8-bit RGB
GGL_PIXEL_FORMAT_RGB_565 = 4, // 16-bit RGB
GGL_PIXEL_FORMAT_BGRA_8888 = 5, // 4x8-bit BGRA
GGL_PIXEL_FORMAT_RGBA_5551 = 6, // 16-bit RGBA
GGL_PIXEL_FORMAT_RGBA_4444 = 7, // 16-bit RGBA
GGL_PIXEL_FORMAT_A_8 = 8, // 8-bit A
GGL_PIXEL_FORMAT_L_8 = 9, // 8-bit L (R=G=B = L)
GGL_PIXEL_FORMAT_LA_88 = 0xA, // 16-bit LA
GGL_PIXEL_FORMAT_RGB_332 = 0xB, // 8-bit RGB (non paletted)
// reserved range. don't use.
GGL_PIXEL_FORMAT_RESERVED_10 = 0x10,
GGL_PIXEL_FORMAT_RESERVED_11 = 0x11,
GGL_PIXEL_FORMAT_RESERVED_12 = 0x12,
GGL_PIXEL_FORMAT_RESERVED_13 = 0x13,
GGL_PIXEL_FORMAT_RESERVED_14 = 0x14,
GGL_PIXEL_FORMAT_RESERVED_15 = 0x15,
GGL_PIXEL_FORMAT_RESERVED_16 = 0x16,
GGL_PIXEL_FORMAT_RESERVED_17 = 0x17,
// reserved/special formats
GGL_PIXEL_FORMAT_Z_16 = 0x18,
GGL_PIXEL_FORMAT_S_8 = 0x19,
GGL_PIXEL_FORMAT_SZ_24 = 0x1A,
GGL_PIXEL_FORMAT_SZ_8 = 0x1B,
// reserved range. don't use.
GGL_PIXEL_FORMAT_RESERVED_20 = 0x20,
GGL_PIXEL_FORMAT_RESERVED_21 = 0x21,
};
enum GGLFormatComponents {
GGL_STENCIL_INDEX = 0x1901,
GGL_DEPTH_COMPONENT = 0x1902,
GGL_ALPHA = 0x1906,
GGL_RGB = 0x1907,
GGL_RGBA = 0x1908,
GGL_LUMINANCE = 0x1909,
GGL_LUMINANCE_ALPHA = 0x190A,
};
enum GGLFormatComponentIndex {
GGL_INDEX_ALPHA = 0,
GGL_INDEX_RED = 1,
GGL_INDEX_GREEN = 2,
GGL_INDEX_BLUE = 3,
GGL_INDEX_STENCIL = 0,
GGL_INDEX_DEPTH = 1,
GGL_INDEX_Y = 0,
GGL_INDEX_CB = 1,
GGL_INDEX_CR = 2,
};
typedef struct {
#ifdef __cplusplus
enum {
ALPHA = GGL_INDEX_ALPHA,
RED = GGL_INDEX_RED,
GREEN = GGL_INDEX_GREEN,
BLUE = GGL_INDEX_BLUE,
STENCIL = GGL_INDEX_STENCIL,
DEPTH = GGL_INDEX_DEPTH,
LUMA = GGL_INDEX_Y,
CHROMAB = GGL_INDEX_CB,
CHROMAR = GGL_INDEX_CR,
};
inline uint32_t mask(int i) const {
return ((1<<(c[i].h-c[i].l))-1)<<c[i].l;
}
inline uint32_t bits(int i) const {
return c[i].h - c[i].l;
}
#endif
uint8_t size; // bytes per pixel
uint8_t bitsPerPixel;
union {
struct {
uint8_t ah; // alpha high bit position + 1
uint8_t al; // alpha low bit position
uint8_t rh; // red high bit position + 1
uint8_t rl; // red low bit position
uint8_t gh; // green high bit position + 1
uint8_t gl; // green low bit position
uint8_t bh; // blue high bit position + 1
uint8_t bl; // blue low bit position
};
struct {
uint8_t h;
uint8_t l;
} __attribute__((__packed__)) c[4];
} __attribute__((__packed__));
uint16_t components; // GGLFormatComponents
} GGLFormat;
#ifdef __cplusplus
extern "C" const GGLFormat* gglGetPixelFormatTable(size_t* numEntries = 0);
#else
const GGLFormat* gglGetPixelFormatTable(size_t* numEntries);
#endif
// ----------------------------------------------------------------------------
#endif // ANDROID_PIXELFLINGER_FORMAT_H
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