200 lines
6.5 KiB
C++
200 lines
6.5 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __PixelFormat_H__
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#define __PixelFormat_H__
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#include "../foundation/util/string.h"
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namespace RenderBase
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{
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/** from Ogre
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* Flags defining some on/off properties of pixel formats
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*/
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enum PixelFormatFlags {
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// This format has an alpha channel
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PFF_HASALPHA = 0x00000001,
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// This format is compressed. This invalidates the values in elemBytes,
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// elemBits and the bit counts as these might not be fixed in a compressed format.
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PFF_COMPRESSED = 0x00000002,
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// This is a floating point format
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PFF_FLOAT = 0x00000004,
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// This is a depth format (for depth textures)
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PFF_DEPTH = 0x00000008,
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// Format is in native endian. Generally true for the 16, 24 and 32 bits
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// formats which can be represented as machine integers.
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PFF_NATIVEENDIAN = 0x00000010,
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// This is an intensity format instead of a RGB one. The luminance
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// replaces R,G and B. (but not A)
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PFF_LUMINANCE = 0x00000020
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};
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/** From Ogre Pixel component format */
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enum PixelComponentType
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{
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PCT_BYTE = 0, /// Byte per component (8 bit fixed 0.0..1.0)
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PCT_SHORT = 1, /// Short per component (16 bit fixed 0.0..1.0))
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PCT_FLOAT16 = 2, /// 16 bit float per component
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PCT_FLOAT32 = 3, /// 32 bit float per component
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PCT_COUNT = 4 /// Number of pixel types
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};
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//-----------------------------------------------------------------------
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/** From Ogre
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* A record that describes a pixel format in detail.
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*/
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struct PixelFormatDescription {
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/* Name of the format, as in the enum */
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const char *name;
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/* Number of bytes one element (colour value) takes. */
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unsigned char elemBytes;
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/* Pixel format flags, see enum PixelFormatFlags for the bit field
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* definitions
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*/
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uint32 flags;
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/** Component type
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*/
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PixelComponentType componentType;
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/** Component count
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*/
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unsigned char componentCount;
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/* Number of bits for red(or luminance), green, blue, alpha
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*/
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unsigned char rbits,gbits,bbits,abits; /*, ibits, dbits, ... */
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/* Masks and shifts as used by packers/unpackers */
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uint32 rmask, gmask, bmask, amask;
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unsigned char rshift, gshift, bshift, ashift;
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};
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// <20>Ĵ<DEB8>ö<EFBFBD><C3B6>ʱ<EFBFBD>ǵ<EFBFBD>Ҫ<EFBFBD>ͽű<CDBD><C5B1>ĸ<EFBFBD>ʽͬ<CABD><CDAC>ScriptRuntime._PixelFormat<61><74>
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// <20><><EFBFBD>ظ<EFBFBD>ʽ<EFBFBD>е<EFBFBD>˳<EFBFBD><CBB3>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD>˳<EFBFBD><EFBFBD><F2A1A3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ֽ<EFBFBD><D6BD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ڵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>е<EFBFBD>ƽ̨<C6BD><CCA8>
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// <20><><EFBFBD><EFBFBD>A8R8G8B8<42><38><EFBFBD><EFBFBD>{A<><41>R<EFBFBD><52>G<EFBFBD><47>B}<7D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>˻<EFBFBD><CBBB><EFBFBD><EFBFBD>ϣ<EFBFBD>PC<50><43><EFBFBD>ϣ<EFBFBD><CFA3>ڴ<EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD>[B<><42>G<EFBFBD><47>R<EFBFBD><52>A]<5D><>
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// <20><><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>D3D<33><44>OpenGL<47><4C>һ<EFBFBD>µģ<C2B5><C4A3><EFBFBD><EFBFBD>ڴ<EFBFBD>˳<EFBFBD><CBB3>ȡ<EFBFBD><C8A1><EFBFBD>ڿͻ<DABF><CDBB>˻<EFBFBD><CBBB><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>
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// !!!!!!!!!!!<21><EFBFBD>ö<EFBFBD>ٺǵö<C7B5>Ӧ<EFBFBD><EFBFBD>PixelFormatDescription _pixelFormats <20><> CommonCount<6E><74>iOSCount <20>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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class PixelFormat
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{
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public:
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/// enums
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enum Code
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{
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// begin common
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X8R8G8B8 = 0,
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R8G8B8,
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B8G8R8,
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B8G8R8A8,
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R8G8B8A8,
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A8B8G8R8,
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A8R8G8B8,
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R5G6B5,
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A1R5G5B5,
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A4R4G4B4,
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DXT1,
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DXT2,
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DXT3,
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DXT4,
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DXT5,
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R16F,
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G16R16F,
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A16B16G16R16F,
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R32F,
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G32R32F,
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A32B32G32R32F,
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A8,
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L8,
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L8A8, //[2012/4/12 zhongdaohuan] mygui <20>õ<EFBFBD><C3B5>ĸ<EFBFBD>ʽ
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L16,
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G16R16,
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D24X8,
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D24S8,
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// end common CommonCount
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// begin iPhone / PowerVR
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PVRTC_RGB2,
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PVRTC_RGBA2,
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PVRTC_RGB4,
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PVRTC_RGBA4,
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// end iphone / PowerVR end iOSCount
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//ETC
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ETC1_RGB8,
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NumPixelFormats,
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InvalidPixelFormat,
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DescPixelFormatsCount, // <09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>NumPixelFormats<74><73>InvalidPixelFormat<61><74>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BUG<55><47><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// <20><>¼<EFBFBD>ֿ<EFBFBD><D6BF>ı<EFBFBD>־λ<D6BE><CEBB> <20><><EFBFBD><EFBFBD>ö<EFBFBD><C3B6>֮<EFBFBD>ǵ<F3A3ACBC><C7B5><EFBFBD>
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CommonCount = D24S8 + 1,
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iOSCount = PVRTC_RGBA4 + 1,
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};
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/// From Ogre:
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static bool IsCompressed(Code code);
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/** From Ogre: Returns the size in bytes of an element of the given pixel format.
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* GetNumElemBytes
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* @param: Code code
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* @return: SizeT
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The size in bytes of an element. See Remarks.
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* @see:
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* @remark:
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Passing PF_UNKNOWN will result in returning a size of 0 bytes.
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*/
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static SizeT GetNumElemBytes(Code code);
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// From Ogre: Gives the masks for the R, G, B and A component. Only valid for native endian formats
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static void GetBitMasks(Code format, uint32 rgba[4]);
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// From Ogre: Gives the number of bits (RGBA) for a format. For non-colour formats (dxt, depth) this returns [0,0,0,0].
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static void GetBitDepths(Code format, int rgba[4]);
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// From Ogre:Returns the size in memory of a region with the given extents and pixel format with consecutive memory layout
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static SizeT GetMemorySize(SizeT width, SizeT height, SizeT depth, Code format);
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/// convert from string
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static Code FromString(const Util::String& str);
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/// convert to string
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static Util::String ToString(Code code);
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/** From Ogre: Returns the property flags for this pixel format
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* GetFlags
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* @param: Code format
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* @return: unsigned int
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A bitfield combination of PFF_HASALPHA, PFF_ISCOMPRESSED,
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PFF_FLOAT, PFF_DEPTH, PFF_NATIVEENDIAN, PFF_LUMINANCE
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* @see:
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* @remark:
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*/
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static unsigned int GetFlags( Code format );
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};
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}
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#endif // __PixelFormat_H__
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