137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/*
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* Copyright (C) 2005 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_PIXELFLINGER_FORMAT_H
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#define ANDROID_PIXELFLINGER_FORMAT_H
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#include <stdint.h>
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#include <sys/types.h>
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enum GGLPixelFormat {
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// these constants need to match those
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// in graphics/PixelFormat.java, ui/PixelFormat.h, BlitHardware.h
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GGL_PIXEL_FORMAT_UNKNOWN = 0,
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GGL_PIXEL_FORMAT_NONE = 0,
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GGL_PIXEL_FORMAT_RGBA_8888 = 1, // 4x8-bit ARGB
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GGL_PIXEL_FORMAT_RGBX_8888 = 2, // 3x8-bit RGB stored in 32-bit chunks
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GGL_PIXEL_FORMAT_RGB_888 = 3, // 3x8-bit RGB
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GGL_PIXEL_FORMAT_RGB_565 = 4, // 16-bit RGB
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GGL_PIXEL_FORMAT_BGRA_8888 = 5, // 4x8-bit BGRA
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GGL_PIXEL_FORMAT_RGBA_5551 = 6, // 16-bit RGBA
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GGL_PIXEL_FORMAT_RGBA_4444 = 7, // 16-bit RGBA
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GGL_PIXEL_FORMAT_A_8 = 8, // 8-bit A
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GGL_PIXEL_FORMAT_L_8 = 9, // 8-bit L (R=G=B = L)
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GGL_PIXEL_FORMAT_LA_88 = 0xA, // 16-bit LA
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GGL_PIXEL_FORMAT_RGB_332 = 0xB, // 8-bit RGB (non paletted)
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// reserved range. don't use.
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GGL_PIXEL_FORMAT_RESERVED_10 = 0x10,
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GGL_PIXEL_FORMAT_RESERVED_11 = 0x11,
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GGL_PIXEL_FORMAT_RESERVED_12 = 0x12,
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GGL_PIXEL_FORMAT_RESERVED_13 = 0x13,
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GGL_PIXEL_FORMAT_RESERVED_14 = 0x14,
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GGL_PIXEL_FORMAT_RESERVED_15 = 0x15,
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GGL_PIXEL_FORMAT_RESERVED_16 = 0x16,
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GGL_PIXEL_FORMAT_RESERVED_17 = 0x17,
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// reserved/special formats
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GGL_PIXEL_FORMAT_Z_16 = 0x18,
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GGL_PIXEL_FORMAT_S_8 = 0x19,
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GGL_PIXEL_FORMAT_SZ_24 = 0x1A,
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GGL_PIXEL_FORMAT_SZ_8 = 0x1B,
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// reserved range. don't use.
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GGL_PIXEL_FORMAT_RESERVED_20 = 0x20,
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GGL_PIXEL_FORMAT_RESERVED_21 = 0x21,
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};
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enum GGLFormatComponents {
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GGL_STENCIL_INDEX = 0x1901,
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GGL_DEPTH_COMPONENT = 0x1902,
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GGL_ALPHA = 0x1906,
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GGL_RGB = 0x1907,
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GGL_RGBA = 0x1908,
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GGL_LUMINANCE = 0x1909,
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GGL_LUMINANCE_ALPHA = 0x190A,
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};
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enum GGLFormatComponentIndex {
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GGL_INDEX_ALPHA = 0,
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GGL_INDEX_RED = 1,
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GGL_INDEX_GREEN = 2,
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GGL_INDEX_BLUE = 3,
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GGL_INDEX_STENCIL = 0,
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GGL_INDEX_DEPTH = 1,
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GGL_INDEX_Y = 0,
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GGL_INDEX_CB = 1,
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GGL_INDEX_CR = 2,
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};
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typedef struct {
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#ifdef __cplusplus
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enum {
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ALPHA = GGL_INDEX_ALPHA,
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RED = GGL_INDEX_RED,
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GREEN = GGL_INDEX_GREEN,
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BLUE = GGL_INDEX_BLUE,
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STENCIL = GGL_INDEX_STENCIL,
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DEPTH = GGL_INDEX_DEPTH,
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LUMA = GGL_INDEX_Y,
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CHROMAB = GGL_INDEX_CB,
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CHROMAR = GGL_INDEX_CR,
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};
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inline uint32_t mask(int i) const {
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return ((1<<(c[i].h-c[i].l))-1)<<c[i].l;
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}
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inline uint32_t bits(int i) const {
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return c[i].h - c[i].l;
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}
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#endif
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uint8_t size; // bytes per pixel
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uint8_t bitsPerPixel;
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union {
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struct {
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uint8_t ah; // alpha high bit position + 1
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uint8_t al; // alpha low bit position
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uint8_t rh; // red high bit position + 1
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uint8_t rl; // red low bit position
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uint8_t gh; // green high bit position + 1
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uint8_t gl; // green low bit position
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uint8_t bh; // blue high bit position + 1
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uint8_t bl; // blue low bit position
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};
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struct {
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uint8_t h;
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uint8_t l;
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} __attribute__((__packed__)) c[4];
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} __attribute__((__packed__));
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uint16_t components; // GGLFormatComponents
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} GGLFormat;
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#ifdef __cplusplus
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extern "C" const GGLFormat* gglGetPixelFormatTable(size_t* numEntries = 0);
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#else
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const GGLFormat* gglGetPixelFormatTable(size_t* numEntries);
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#endif
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// ----------------------------------------------------------------------------
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#endif // ANDROID_PIXELFLINGER_FORMAT_H
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