1236 lines
51 KiB
C++
1236 lines
51 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSG_TEXTURE
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#define OSG_TEXTURE 1
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#include <osg/GL>
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#include <osg/Image>
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#include <osg/StateAttribute>
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#include <osg/GraphicsContext>
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#include <osg/ref_ptr>
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#include <osg/Vec4>
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#include <osg/Vec4d>
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#include <osg/Vec4i>
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#include <osg/buffered_value>
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#include <osg/GLExtensions>
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#include <list>
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#include <map>
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// If not defined by gl.h use the definition found in:
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// http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_filter_anisotropic.txt
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#ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT
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#define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
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#endif
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// If not defined, use the definition found in:
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// http://www.opengl.org/registry/specs/ARB/texture_swizzle.txt
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#ifndef GL_TEXTURE_SWIZZLE_RGBA
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#define GL_TEXTURE_SWIZZLE_RGBA 0x8E46
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#endif
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#ifndef GL_ARB_texture_compression
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#define GL_COMPRESSED_ALPHA_ARB 0x84E9
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#define GL_COMPRESSED_LUMINANCE_ARB 0x84EA
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#define GL_COMPRESSED_LUMINANCE_ALPHA_ARB 0x84EB
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#define GL_COMPRESSED_INTENSITY_ARB 0x84EC
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#define GL_COMPRESSED_RGB_ARB 0x84ED
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#define GL_COMPRESSED_RGBA_ARB 0x84EE
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#define GL_TEXTURE_COMPRESSION_HINT_ARB 0x84EF
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#define GL_TEXTURE_COMPRESSED_ARB 0x86A1
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#define GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB 0x86A2
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#define GL_COMPRESSED_TEXTURE_FORMATS_ARB 0x86A3
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#endif
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#ifndef GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB
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#define GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB 0x86A0
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#endif
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#ifndef GL_EXT_texture_compression_s3tc
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#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
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#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
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#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
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#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
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#endif
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#ifndef GL_EXT_texture_compression_rgtc
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#define GL_COMPRESSED_RED_RGTC1_EXT 0x8DBB
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#define GL_COMPRESSED_SIGNED_RED_RGTC1_EXT 0x8DBC
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#define GL_COMPRESSED_RED_GREEN_RGTC2_EXT 0x8DBD
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#define GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT 0x8DBE
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#endif
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#ifndef GL_IMG_texture_compression_pvrtc
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#define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00
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#define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01
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#define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02
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#define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03
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#endif
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#ifndef GL_OES_compressed_ETC1_RGB8_texture
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#define GL_ETC1_RGB8_OES 0x8D64
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#endif
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#ifndef GL_ARB_INTERNAL_TEXTURE_FORMAT
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#define GL_RGBA32F_ARB 0x8814
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#define GL_RGB32F_ARB 0x8815
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#define GL_ALPHA32F_ARB 0x8816
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#define GL_INTENSITY32F_ARB 0x8817
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#define GL_LUMINANCE32F_ARB 0x8818
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#define GL_LUMINANCE_ALPHA32F_ARB 0x8819
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#define GL_RGBA16F_ARB 0x881A
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#define GL_RGB16F_ARB 0x881B
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#define GL_ALPHA16F_ARB 0x881C
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#define GL_INTENSITY16F_ARB 0x881D
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#define GL_LUMINANCE16F_ARB 0x881E
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#define GL_LUMINANCE_ALPHA16F_ARB 0x881F
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#endif
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#ifndef GL_HALF_FLOAT
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#define GL_HALF_FLOAT 0x140B
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#endif
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#ifndef GL_NV_texture_shader
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#define GL_HILO_NV 0x86F4
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#define GL_DSDT_NV 0x86F5
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#define GL_DSDT_MAG_NV 0x86F6
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#define GL_DSDT_MAG_VIB_NV 0x86F7
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#define GL_HILO16_NV 0x86F8
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#define GL_SIGNED_HILO_NV 0x86F9
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#define GL_SIGNED_HILO16_NV 0x86FA
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#define GL_SIGNED_RGBA_NV 0x86FB
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#define GL_SIGNED_RGBA8_NV 0x86FC
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#define GL_SIGNED_RGB_NV 0x86FE
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#define GL_SIGNED_RGB8_NV 0x86FF
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#define GL_SIGNED_LUMINANCE_NV 0x8701
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#define GL_SIGNED_LUMINANCE8_NV 0x8702
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#define GL_SIGNED_LUMINANCE_ALPHA_NV 0x8703
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#define GL_SIGNED_LUMINANCE8_ALPHA8_NV 0x8704
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#define GL_SIGNED_ALPHA_NV 0x8705
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#define GL_SIGNED_ALPHA8_NV 0x8706
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#define GL_SIGNED_INTENSITY_NV 0x8707
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#define GL_SIGNED_INTENSITY8_NV 0x8708
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#define GL_DSDT8_NV 0x8709
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#define GL_DSDT8_MAG8_NV 0x870A
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#define GL_DSDT8_MAG8_INTENSITY8_NV 0x870B
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#define GL_SIGNED_RGB_UNSIGNED_ALPHA_NV 0x870C
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#define GL_SIGNED_RGB8_UNSIGNED_ALPHA8_NV 0x870D
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#endif
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#ifndef GL_NV_float_buffer
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#define GL_FLOAT_R_NV 0x8880
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#define GL_FLOAT_RG_NV 0x8881
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#define GL_FLOAT_RGB_NV 0x8882
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#define GL_FLOAT_RGBA_NV 0x8883
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#define GL_FLOAT_R16_NV 0x8884
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#define GL_FLOAT_R32_NV 0x8885
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#define GL_FLOAT_RG16_NV 0x8886
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#define GL_FLOAT_RG32_NV 0x8887
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#define GL_FLOAT_RGB16_NV 0x8888
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#define GL_FLOAT_RGB32_NV 0x8889
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#define GL_FLOAT_RGBA16_NV 0x888A
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#define GL_FLOAT_RGBA32_NV 0x888B
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#endif
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#ifndef GL_ATI_texture_float
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#define GL_RGBA_FLOAT32_ATI 0x8814
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#define GL_RGB_FLOAT32_ATI 0x8815
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#define GL_ALPHA_FLOAT32_ATI 0x8816
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#define GL_INTENSITY_FLOAT32_ATI 0x8817
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#define GL_LUMINANCE_FLOAT32_ATI 0x8818
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#define GL_LUMINANCE_ALPHA_FLOAT32_ATI 0x8819
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#define GL_RGBA_FLOAT16_ATI 0x881A
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#define GL_RGB_FLOAT16_ATI 0x881B
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#define GL_ALPHA_FLOAT16_ATI 0x881C
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#define GL_INTENSITY_FLOAT16_ATI 0x881D
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#define GL_LUMINANCE_FLOAT16_ATI 0x881E
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#define GL_LUMINANCE_ALPHA_FLOAT16_ATI 0x881F
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#endif
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#ifndef GL_MIRRORED_REPEAT_IBM
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#define GL_MIRRORED_REPEAT_IBM 0x8370
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#endif
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#ifndef GL_CLAMP_TO_EDGE
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#define GL_CLAMP_TO_EDGE 0x812F
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#endif
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#ifndef GL_CLAMP
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#define GL_CLAMP 0x2900
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#endif
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#ifndef GL_CLAMP_TO_BORDER_ARB
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#define GL_CLAMP_TO_BORDER_ARB 0x812D
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#endif
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#ifndef GL_INTENSITY
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// OpenGL ES1 and ES2 doesn't provide GL_INTENSITY
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#define GL_INTENSITY 0x8049
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#endif
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#ifndef GL_GENERATE_MIPMAP_SGIS
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#define GL_GENERATE_MIPMAP_SGIS 0x8191
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#define GL_GENERATE_MIPMAP_HINT_SGIS 0x8192
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#endif
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#ifndef GL_TEXTURE_3D
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#define GL_TEXTURE_3D 0x806F
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#endif
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#ifndef GL_TEXTURE_CUBE_MAP
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#define GL_TEXTURE_CUBE_MAP 0x8513
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#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514
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#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
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#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
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#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
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#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
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#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
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#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
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#define GL_PROXY_TEXTURE_CUBE_MAP 0x851B
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#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C
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#endif
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#ifndef GL_TEXTURE_BINDING_3D
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#define GL_TEXTURE_BINDING_3D 0x806A
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#endif
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#ifndef GL_DEPTH_TEXTURE_MODE_ARB
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#define GL_DEPTH_TEXTURE_MODE_ARB 0x884B
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#endif
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#ifndef GL_TEXTURE_COMPARE_MODE_ARB
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#define GL_TEXTURE_COMPARE_MODE_ARB 0x884C
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#endif
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#ifndef GL_TEXTURE_COMPARE_FUNC_ARB
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#define GL_TEXTURE_COMPARE_FUNC_ARB 0x884D
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#endif
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#ifndef GL_COMPARE_R_TO_TEXTURE_ARB
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#define GL_COMPARE_R_TO_TEXTURE_ARB 0x884E
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#endif
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#ifndef TEXTURE_COMPARE_FAIL_VALUE_ARB
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#define TEXTURE_COMPARE_FAIL_VALUE_ARB 0x80BF
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#endif
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#if !defined( GL_MAX_TEXTURE_UNITS )
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#define GL_MAX_TEXTURE_UNITS 0x84E2
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#endif
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#ifndef GL_TEXTURE_DEPTH
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#define GL_TEXTURE_DEPTH 0x8071
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#endif
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#ifndef GL_TEXTURE_2D_MULTISAMPLE
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#define GL_TEXTURE_2D_MULTISAMPLE 0x9100
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#endif
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// Integer texture extension as in http://www.opengl.org/registry/specs/EXT/texture_integer.txt
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#ifndef GL_EXT_texture_integer
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#define GL_RGBA32UI_EXT 0x8D70
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#define GL_RGB32UI_EXT 0x8D71
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#define GL_ALPHA32UI_EXT 0x8D72
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#define GL_INTENSITY32UI_EXT 0x8D73
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#define GL_LUMINANCE32UI_EXT 0x8D74
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#define GL_LUMINANCE_ALPHA32UI_EXT 0x8D75
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#define GL_RGBA16UI_EXT 0x8D76
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#define GL_RGB16UI_EXT 0x8D77
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#define GL_ALPHA16UI_EXT 0x8D78
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#define GL_INTENSITY16UI_EXT 0x8D79
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#define GL_LUMINANCE16UI_EXT 0x8D7A
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#define GL_LUMINANCE_ALPHA16UI_EXT 0x8D7B
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#define GL_RGBA8UI_EXT 0x8D7C
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#define GL_RGB8UI_EXT 0x8D7D
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#define GL_ALPHA8UI_EXT 0x8D7E
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#define GL_INTENSITY8UI_EXT 0x8D7F
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#define GL_LUMINANCE8UI_EXT 0x8D80
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#define GL_LUMINANCE_ALPHA8UI_EXT 0x8D81
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#define GL_RGBA32I_EXT 0x8D82
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#define GL_RGB32I_EXT 0x8D83
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#define GL_ALPHA32I_EXT 0x8D84
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#define GL_INTENSITY32I_EXT 0x8D85
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#define GL_LUMINANCE32I_EXT 0x8D86
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#define GL_LUMINANCE_ALPHA32I_EXT 0x8D87
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#define GL_RGBA16I_EXT 0x8D88
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#define GL_RGB16I_EXT 0x8D89
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#define GL_ALPHA16I_EXT 0x8D8A
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#define GL_INTENSITY16I_EXT 0x8D8B
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#define GL_LUMINANCE16I_EXT 0x8D8C
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#define GL_LUMINANCE_ALPHA16I_EXT 0x8D8D
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#define GL_RGBA8I_EXT 0x8D8E
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#define GL_RGB8I_EXT 0x8D8F
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#define GL_ALPHA8I_EXT 0x8D90
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#define GL_INTENSITY8I_EXT 0x8D91
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#define GL_LUMINANCE8I_EXT 0x8D92
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#define GL_LUMINANCE_ALPHA8I_EXT 0x8D93
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#define GL_RED_INTEGER_EXT 0x8D94
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#define GL_GREEN_INTEGER_EXT 0x8D95
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#define GL_BLUE_INTEGER_EXT 0x8D96
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#define GL_ALPHA_INTEGER_EXT 0x8D97
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#define GL_RGB_INTEGER_EXT 0x8D98
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#define GL_RGBA_INTEGER_EXT 0x8D99
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#define GL_BGR_INTEGER_EXT 0x8D9A
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#define GL_BGRA_INTEGER_EXT 0x8D9B
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#define GL_LUMINANCE_INTEGER_EXT 0x8D9C
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#define GL_LUMINANCE_ALPHA_INTEGER_EXT 0x8D9D
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#define GL_RGBA_INTEGER_MODE_EXT 0x8D9E
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#endif
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#ifndef GL_VERSION_1_1
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#define GL_R3_G3_B2 0x2A10
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#define GL_RGB4 0x804F
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#define GL_RGB5 0x8050
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#define GL_RGB8 0x8051
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#define GL_RGB10 0x8052
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#define GL_RGB12 0x8053
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#define GL_RGB16 0x8054
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#define GL_RGBA2 0x8055
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#define GL_RGBA4 0x8056
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#define GL_RGB5_A1 0x8057
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#define GL_RGBA8 0x8058
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#define GL_RGB10_A2 0x8059
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#define GL_RGBA12 0x805A
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#define GL_RGBA16 0x805B
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#define GL_BGR_EXT 0x80E0
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#define GL_BGRA_EXT 0x80E1
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#endif
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#ifndef GL_ARB_texture_rg
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#define GL_RG 0x8227
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#define GL_RG_INTEGER 0x8228
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#define GL_R8 0x8229
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#define GL_R16 0x822A
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#define GL_RG8 0x822B
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#define GL_RG16 0x822C
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#define GL_R16F 0x822D
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#define GL_R32F 0x822E
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#define GL_RG16F 0x822F
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#define GL_RG32F 0x8230
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#define GL_R8I 0x8231
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#define GL_R8UI 0x8232
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#define GL_R16I 0x8233
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#define GL_R16UI 0x8234
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#define GL_R32I 0x8235
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#define GL_R32UI 0x8236
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#define GL_RG8I 0x8237
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#define GL_RG8UI 0x8238
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#define GL_RG16I 0x8239
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#define GL_RG16UI 0x823A
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#define GL_RG32I 0x823B
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#define GL_RG32UI 0x823C
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#endif
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#ifndef GL_ARB_shader_image_load_store
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#define GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001
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#define GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002
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#define GL_UNIFORM_BARRIER_BIT 0x00000004
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#define GL_TEXTURE_FETCH_BARRIER_BIT 0x00000008
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#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020
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#define GL_COMMAND_BARRIER_BIT 0x00000040
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#define GL_PIXEL_BUFFER_BARRIER_BIT 0x00000080
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#define GL_TEXTURE_UPDATE_BARRIER_BIT 0x00000100
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#define GL_BUFFER_UPDATE_BARRIER_BIT 0x00000200
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#define GL_FRAMEBUFFER_BARRIER_BIT 0x00000400
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#define GL_TRANSFORM_FEEDBACK_BARRIER_BIT 0x00000800
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#define GL_ATOMIC_COUNTER_BARRIER_BIT 0x00001000
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#define GL_ALL_BARRIER_BITS 0xFFFFFFFF
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#define GL_MAX_IMAGE_UNITS 0x8F38
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#define GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS 0x8F39
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#define GL_IMAGE_BINDING_NAME 0x8F3A
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#define GL_IMAGE_BINDING_LEVEL 0x8F3B
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#define GL_IMAGE_BINDING_LAYERED 0x8F3C
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#define GL_IMAGE_BINDING_LAYER 0x8F3D
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#define GL_IMAGE_BINDING_ACCESS 0x8F3E
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#define GL_IMAGE_1D 0x904C
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#define GL_IMAGE_2D 0x904D
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#define GL_IMAGE_3D 0x904E
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#define GL_IMAGE_2D_RECT 0x904F
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#define GL_IMAGE_CUBE 0x9050
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#define GL_IMAGE_BUFFER 0x9051
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#define GL_IMAGE_1D_ARRAY 0x9052
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#define GL_IMAGE_2D_ARRAY 0x9053
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#define GL_IMAGE_CUBE_MAP_ARRAY 0x9054
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#define GL_IMAGE_2D_MULTISAMPLE 0x9055
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#define GL_IMAGE_2D_MULTISAMPLE_ARRAY 0x9056
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#define GL_INT_IMAGE_1D 0x9057
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#define GL_INT_IMAGE_2D 0x9058
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#define GL_INT_IMAGE_3D 0x9059
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#define GL_INT_IMAGE_2D_RECT 0x905A
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#define GL_INT_IMAGE_CUBE 0x905B
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#define GL_INT_IMAGE_BUFFER 0x905C
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#define GL_INT_IMAGE_1D_ARRAY 0x905D
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#define GL_INT_IMAGE_2D_ARRAY 0x905E
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#define GL_INT_IMAGE_CUBE_MAP_ARRAY 0x905F
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#define GL_INT_IMAGE_2D_MULTISAMPLE 0x9060
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#define GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x9061
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#define GL_UNSIGNED_INT_IMAGE_1D 0x9062
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#define GL_UNSIGNED_INT_IMAGE_2D 0x9063
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#define GL_UNSIGNED_INT_IMAGE_3D 0x9064
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#define GL_UNSIGNED_INT_IMAGE_2D_RECT 0x9065
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#define GL_UNSIGNED_INT_IMAGE_CUBE 0x9066
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#define GL_UNSIGNED_INT_IMAGE_BUFFER 0x9067
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#define GL_UNSIGNED_INT_IMAGE_1D_ARRAY 0x9068
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#define GL_UNSIGNED_INT_IMAGE_2D_ARRAY 0x9069
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#define GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY 0x906A
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#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE 0x906B
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#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x906C
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#define GL_MAX_IMAGE_SAMPLES 0x906D
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#define GL_IMAGE_BINDING_FORMAT 0x906E
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#define GL_IMAGE_FORMAT_COMPATIBILITY_TYPE 0x90C7
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#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE 0x90C8
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#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS 0x90C9
|
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#define GL_MAX_VERTEX_IMAGE_UNIFORMS 0x90CA
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#define GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS 0x90CB
|
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#define GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS 0x90CC
|
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#define GL_MAX_GEOMETRY_IMAGE_UNIFORMS 0x90CD
|
|
#define GL_MAX_FRAGMENT_IMAGE_UNIFORMS 0x90CE
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#define GL_MAX_COMBINED_IMAGE_UNIFORMS 0x90CF
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#endif
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|
|
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//#define OSG_COLLECT_TEXTURE_APPLIED_STATS 1
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|
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namespace osg {
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// forward declare
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class TextureObjectSet;
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class TextureObjectManager;
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/** Texture pure virtual base class that encapsulates OpenGL texture
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* functionality common to the various types of OSG textures.
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*/
|
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class OSG_EXPORT Texture : public osg::StateAttribute
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{
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public :
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Texture();
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */
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Texture(const Texture& text,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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virtual osg::Object* cloneType() const = 0;
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virtual osg::Object* clone(const CopyOp& copyop) const = 0;
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const Texture *>(obj)!=NULL; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "Texture"; }
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/** Fast alternative to dynamic_cast<> for determining if state attribute is a Texture.*/
|
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virtual Texture* asTexture() { return this; }
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|
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/** Fast alternative to dynamic_cast<> for determining if state attribute is a Texture.*/
|
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virtual const Texture* asTexture() const { return this; }
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virtual Type getType() const { return TEXTURE; }
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virtual bool isTextureAttribute() const { return true; }
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|
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virtual GLenum getTextureTarget() const = 0;
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|
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#ifdef OSG_GL_FIXED_FUNCTION_AVAILABLE
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virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
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{
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usage.usesTextureMode(getTextureTarget());
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return true;
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}
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#endif
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virtual int getTextureWidth() const { return 0; }
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virtual int getTextureHeight() const { return 0; }
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virtual int getTextureDepth() const { return 0; }
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enum WrapParameter {
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WRAP_S,
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WRAP_T,
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WRAP_R
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};
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enum WrapMode {
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CLAMP = GL_CLAMP,
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CLAMP_TO_EDGE = GL_CLAMP_TO_EDGE,
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CLAMP_TO_BORDER = GL_CLAMP_TO_BORDER_ARB,
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REPEAT = GL_REPEAT,
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MIRROR = GL_MIRRORED_REPEAT_IBM
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};
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/** Sets the texture wrap mode. */
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void setWrap(WrapParameter which, WrapMode wrap);
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/** Gets the texture wrap mode. */
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WrapMode getWrap(WrapParameter which) const;
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/** Sets the border color. Only used when wrap mode is CLAMP_TO_BORDER.
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* The border color will be casted to the appropriate type to match the
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* internal pixel format of the texture. */
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void setBorderColor(const Vec4d& color) { _borderColor = color; dirtyTextureParameters(); }
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/** Gets the border color. */
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const Vec4d& getBorderColor() const { return _borderColor; }
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/** Sets the border width. */
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void setBorderWidth(GLint width) { _borderWidth = width; dirtyTextureParameters(); }
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GLint getBorderWidth() const { return _borderWidth; }
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enum FilterParameter {
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MIN_FILTER,
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MAG_FILTER
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};
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enum FilterMode {
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LINEAR = GL_LINEAR,
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LINEAR_MIPMAP_LINEAR = GL_LINEAR_MIPMAP_LINEAR,
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LINEAR_MIPMAP_NEAREST = GL_LINEAR_MIPMAP_NEAREST,
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NEAREST = GL_NEAREST,
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NEAREST_MIPMAP_LINEAR = GL_NEAREST_MIPMAP_LINEAR,
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NEAREST_MIPMAP_NEAREST = GL_NEAREST_MIPMAP_NEAREST
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};
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|
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/** Sets the texture filter mode. */
|
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void setFilter(FilterParameter which, FilterMode filter);
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|
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/** Gets the texture filter mode. */
|
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FilterMode getFilter(FilterParameter which) const;
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/** Sets the maximum anisotropy value, default value is 1.0 for no
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* anisotropic filtering. If hardware does not support anisotropic
|
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* filtering, use normal filtering (equivalent to a max anisotropy
|
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* value of 1.0. Valid range is 1.0f upwards. The maximum value
|
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* depends on the graphics system. */
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void setMaxAnisotropy(float anis);
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|
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/** Gets the maximum anisotropy value. */
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inline float getMaxAnisotropy() const { return _maxAnisotropy; }
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|
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/** Configure the source of texture swizzling for all channels */
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inline void setSwizzle(const Vec4i& swizzle) { _swizzle = swizzle; dirtyTextureParameters(); };
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|
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/** Gets the source of texture swizzling for all channels */
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inline const Vec4i& getSwizzle() const { return _swizzle; }
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|
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/** Sets the hardware mipmap generation hint. If enabled, it will
|
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* only be used if supported in the graphics system. */
|
|
inline void setUseHardwareMipMapGeneration(bool useHardwareMipMapGeneration) { _useHardwareMipMapGeneration = useHardwareMipMapGeneration; }
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|
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/** Gets the hardware mipmap generation hint. */
|
|
inline bool getUseHardwareMipMapGeneration() const { return _useHardwareMipMapGeneration; }
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|
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/** Sets whether or not the apply() function will unreference the image
|
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* data. If enabled, and the image data is only referenced by this
|
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* Texture, apply() will delete the image data. */
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|
inline void setUnRefImageDataAfterApply(bool flag) { _unrefImageDataAfterApply = flag; }
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/** Gets whether or not apply() unreferences image data. */
|
|
inline bool getUnRefImageDataAfterApply() const { return _unrefImageDataAfterApply; }
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|
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/** Sets whether to use client storage for the texture, if supported
|
|
* by the graphics system. Note: If enabled, and the graphics system
|
|
* supports it, the osg::Image(s) associated with this texture cannot
|
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* be deleted, so the UnRefImageDataAfterApply flag would be ignored. */
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inline void setClientStorageHint(bool flag) { _clientStorageHint = flag; }
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|
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/** Gets whether to use client storage for the texture. */
|
|
inline bool getClientStorageHint() const { return _clientStorageHint; }
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|
|
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/** Sets whether to force the texture to resize images that have dimensions
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|
* that are not a power of two. If enabled, NPOT images will be resized,
|
|
* whether or not NPOT textures are supported by the hardware. If disabled,
|
|
* NPOT images will not be resized if supported by hardware. */
|
|
inline void setResizeNonPowerOfTwoHint(bool flag) { _resizeNonPowerOfTwoHint = flag; }
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|
|
/** Gets whether texture will force non power to two images to be resized. */
|
|
inline bool getResizeNonPowerOfTwoHint() const { return _resizeNonPowerOfTwoHint; }
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|
|
enum InternalFormatMode {
|
|
USE_IMAGE_DATA_FORMAT,
|
|
USE_USER_DEFINED_FORMAT,
|
|
USE_ARB_COMPRESSION,
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|
USE_S3TC_DXT1_COMPRESSION,
|
|
USE_S3TC_DXT3_COMPRESSION,
|
|
USE_S3TC_DXT5_COMPRESSION,
|
|
USE_PVRTC_2BPP_COMPRESSION,
|
|
USE_PVRTC_4BPP_COMPRESSION,
|
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USE_ETC_COMPRESSION,
|
|
USE_ETC2_COMPRESSION,
|
|
USE_RGTC1_COMPRESSION,
|
|
USE_RGTC2_COMPRESSION,
|
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USE_S3TC_DXT1c_COMPRESSION,
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USE_S3TC_DXT1a_COMPRESSION
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|
};
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/** Sets the internal texture format mode. Note: If the texture format is
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* USE_IMAGE_DATA_FORMAT, USE_ARB_COMPRESSION, or USE_S3TC_COMPRESSION,
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|
* the internal format mode is set automatically and will overwrite the
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|
* previous _internalFormat. */
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|
inline void setInternalFormatMode(InternalFormatMode mode) { _internalFormatMode = mode; }
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|
|
/** Gets the internal texture format mode. */
|
|
inline InternalFormatMode getInternalFormatMode() const { return _internalFormatMode; }
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|
|
/** Sets the internal texture format. Implicitly sets the
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|
* internalFormatMode to USE_USER_DEFINED_FORMAT.
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|
* The corresponding internal format type will be computed. */
|
|
inline void setInternalFormat(GLint internalFormat)
|
|
{
|
|
_internalFormatMode = USE_USER_DEFINED_FORMAT;
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|
_internalFormat = internalFormat;
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|
computeInternalFormatType();
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|
}
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/** Gets the internal texture format. */
|
|
inline GLint getInternalFormat() const { if (_internalFormat==0) computeInternalFormat(); return _internalFormat; }
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/** Return true if the internal format is one of the compressed formats.*/
|
|
bool isCompressedInternalFormat() const;
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/** Sets the external source image format, used as a fallback when no osg::Image is attached to provide the source image format. */
|
|
inline void setSourceFormat(GLenum sourceFormat) { _sourceFormat = sourceFormat; }
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|
|
/** Gets the external source image format. */
|
|
inline GLenum getSourceFormat() const { return _sourceFormat; }
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|
/** Sets the external source data type, used as a fallback when no osg::Image is attached to provide the source image format.*/
|
|
inline void setSourceType(GLenum sourceType) { _sourceType = sourceType; }
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|
|
/** Gets the external source data type.*/
|
|
inline GLenum getSourceType() const { return _sourceType; }
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|
|
/** Texture type determined by the internal texture format */
|
|
enum InternalFormatType{
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|
|
//! default OpenGL format (clamped values to [0,1) or [0,255])
|
|
NORMALIZED = 0x0,
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|
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//! float values, Shader Model 3.0 (see ARB_texture_float)
|
|
FLOAT = 0x1,
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|
|
//! Signed integer values (see EXT_texture_integer)
|
|
SIGNED_INTEGER = 0x2,
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|
|
//! Unsigned integer value (see EXT_texture_integer)
|
|
UNSIGNED_INTEGER = 0x4
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|
};
|
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|
|
/** Get the internal texture format type. */
|
|
inline InternalFormatType getInternalFormatType() const { return _internalFormatType; }
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|
|
class TextureObject;
|
|
|
|
/** Returns a pointer to the TextureObject for the current context. */
|
|
inline TextureObject* getTextureObject(unsigned int contextID) const
|
|
{
|
|
return _textureObjectBuffer[contextID].get();
|
|
}
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|
|
|
inline void setTextureObject(unsigned int contextID, TextureObject* to)
|
|
{
|
|
_textureObjectBuffer[contextID] = to;
|
|
}
|
|
|
|
/** Forces a recompile on next apply() of associated OpenGL texture
|
|
* objects. */
|
|
void dirtyTextureObject();
|
|
|
|
/** Returns true if the texture objects for all the required graphics
|
|
* contexts are loaded. */
|
|
bool areAllTextureObjectsLoaded() const;
|
|
|
|
|
|
/** Gets the dirty flag for the current contextID. */
|
|
inline unsigned int& getTextureParameterDirty(unsigned int contextID) const
|
|
{
|
|
return _texParametersDirtyList[contextID];
|
|
}
|
|
|
|
|
|
/** Force a reset on next apply() of associated OpenGL texture
|
|
* parameters. */
|
|
void dirtyTextureParameters();
|
|
|
|
/** Force a manual allocation of the mipmap levels on the next apply() call.
|
|
* User is responsible for filling the mipmap levels with valid data.
|
|
* The OpenGL's glGenerateMipmapEXT function is used to generate the mipmap levels.
|
|
* If glGenerateMipmapEXT is not supported or texture's internal format is not supported
|
|
* by the glGenerateMipmapEXT, then empty mipmap levels will
|
|
* be allocated manually. The mipmap levels are also allocated if a non-mipmapped
|
|
* min filter is used. */
|
|
void allocateMipmapLevels();
|
|
|
|
/** Sets GL_TEXTURE_COMPARE_MODE_ARB to GL_COMPARE_R_TO_TEXTURE_ARB
|
|
* See http://oss.sgi.com/projects/ogl-sample/registry/ARB/shadow.txt. */
|
|
void setShadowComparison(bool flag) { _use_shadow_comparison = flag; }
|
|
bool getShadowComparison() const { return _use_shadow_comparison; }
|
|
|
|
enum ShadowCompareFunc {
|
|
NEVER = GL_NEVER,
|
|
LESS = GL_LESS,
|
|
EQUAL = GL_EQUAL,
|
|
LEQUAL = GL_LEQUAL,
|
|
GREATER = GL_GREATER,
|
|
NOTEQUAL = GL_NOTEQUAL,
|
|
GEQUAL = GL_GEQUAL,
|
|
ALWAYS = GL_ALWAYS
|
|
};
|
|
|
|
/** Sets shadow texture comparison function. */
|
|
void setShadowCompareFunc(ShadowCompareFunc func) { _shadow_compare_func = func; }
|
|
ShadowCompareFunc getShadowCompareFunc() const { return _shadow_compare_func; }
|
|
|
|
enum ShadowTextureMode {
|
|
LUMINANCE = GL_LUMINANCE,
|
|
INTENSITY = GL_INTENSITY,
|
|
ALPHA = GL_ALPHA,
|
|
NONE = GL_NONE
|
|
};
|
|
|
|
/** Sets shadow texture mode after comparison. */
|
|
void setShadowTextureMode(ShadowTextureMode mode) { _shadow_texture_mode = mode; }
|
|
ShadowTextureMode getShadowTextureMode() const { return _shadow_texture_mode; }
|
|
|
|
/** Sets the TEXTURE_COMPARE_FAIL_VALUE_ARB texture parameter. See
|
|
* http://oss.sgi.com/projects/ogl-sample/registry/ARB/shadow_ambient.txt. */
|
|
void setShadowAmbient(float shadow_ambient) { _shadow_ambient = shadow_ambient; }
|
|
float getShadowAmbient() const { return _shadow_ambient; }
|
|
|
|
|
|
/** Sets the texture image for the specified face. */
|
|
virtual void setImage(unsigned int face, Image* image) = 0;
|
|
|
|
template<class T> void setImage(unsigned int face, const ref_ptr<T>& image) { setImage(face, image.get()); }
|
|
|
|
/** Gets the texture image for the specified face. */
|
|
virtual Image* getImage(unsigned int face) = 0;
|
|
|
|
/** Gets the const texture image for specified face. */
|
|
virtual const Image* getImage(unsigned int face) const = 0;
|
|
|
|
/** Gets the number of images that can be assigned to this Texture. */
|
|
virtual unsigned int getNumImages() const = 0;
|
|
|
|
|
|
/** Set the PBuffer graphics context to read from when using PBuffers for RenderToTexture.*/
|
|
void setReadPBuffer(GraphicsContext* context) { _readPBuffer = context; }
|
|
|
|
template<class T> void setReadPBuffer(const ref_ptr<T>& context) { setReadPBuffer(context.get()); }
|
|
|
|
/** Get the PBuffer graphics context to read from when using PBuffers for RenderToTexture.*/
|
|
GraphicsContext* getReadPBuffer() { return _readPBuffer.get(); }
|
|
|
|
/** Get the const PBuffer graphics context to read from when using PBuffers for RenderToTexture.*/
|
|
const GraphicsContext* getReadPBuffer() const { return _readPBuffer.get(); }
|
|
|
|
/** Texture is a pure virtual base class, apply must be overridden. */
|
|
virtual void apply(State& state) const = 0;
|
|
|
|
/** Calls apply(state) to compile the texture. */
|
|
virtual void compileGLObjects(State& state) const;
|
|
|
|
/** Resize any per context GLObject buffers to specified size. */
|
|
virtual void resizeGLObjectBuffers(unsigned int maxSize);
|
|
|
|
/** If State is non-zero, this function releases OpenGL objects for
|
|
* the specified graphics context. Otherwise, releases OpenGL objects
|
|
* for all graphics contexts. */
|
|
virtual void releaseGLObjects(State* state=0) const;
|
|
|
|
/** Determine whether the given internalFormat is a compressed
|
|
* image format. */
|
|
static bool isCompressedInternalFormat(GLint internalFormat);
|
|
|
|
/** Determine the size of a compressed image, given the internalFormat,
|
|
* the width, the height, and the depth of the image. The block size
|
|
* and the size are output parameters. */
|
|
static void getCompressedSize(GLenum internalFormat, GLint width, GLint height, GLint depth, GLint& blockSize, GLint& size);
|
|
|
|
|
|
/** Helper method. Creates the texture, but doesn't set or use a
|
|
* texture binding. Note: Don't call this method directly unless
|
|
* you're implementing a subload callback. */
|
|
void applyTexImage2D_load(State& state, GLenum target, const Image* image, GLsizei width, GLsizei height,GLsizei numMipmapLevels) const;
|
|
|
|
/** Helper method. Subloads images into the texture, but doesn't set
|
|
* or use a texture binding. Note: Don't call this method directly
|
|
* unless you're implementing a subload callback. */
|
|
void applyTexImage2D_subload(State& state, GLenum target, const Image* image, GLsizei width, GLsizei height, GLint inInternalFormat, GLsizei numMipmapLevels) const;
|
|
|
|
|
|
/** Returned by mipmapBeforeTexImage() to indicate what
|
|
* mipmapAfterTexImage() should do */
|
|
enum GenerateMipmapMode
|
|
{
|
|
GENERATE_MIPMAP_NONE,
|
|
GENERATE_MIPMAP,
|
|
GENERATE_MIPMAP_TEX_PARAMETER
|
|
};
|
|
|
|
protected :
|
|
|
|
virtual ~Texture();
|
|
|
|
virtual void computeInternalFormat() const = 0;
|
|
|
|
/** Computes the internal format from Image parameters. */
|
|
void computeInternalFormatWithImage(const osg::Image& image) const;
|
|
|
|
/** Computes the texture dimension for the given Image. */
|
|
void computeRequiredTextureDimensions(State& state, const osg::Image& image,GLsizei& width, GLsizei& height,GLsizei& numMipmapLevels) const;
|
|
|
|
/** Computes the internal format type. */
|
|
void computeInternalFormatType() const;
|
|
|
|
/** Helper method. Sets texture parameters. */
|
|
void applyTexParameters(GLenum target, State& state) const;
|
|
|
|
/** Returns true if _useHardwareMipMapGeneration is true and either
|
|
* glGenerateMipmapEXT() or GL_GENERATE_MIPMAP_SGIS are supported. */
|
|
bool isHardwareMipmapGenerationEnabled(const State& state) const;
|
|
|
|
/** Returns true if the associated Image should be released and it's safe to do so. */
|
|
bool isSafeToUnrefImageData(const State& state) const {
|
|
return (_unrefImageDataAfterApply && state.getMaxTexturePoolSize()==0 && areAllTextureObjectsLoaded());
|
|
}
|
|
|
|
/** Helper methods to be called before and after calling
|
|
* gl[Compressed][Copy]Tex[Sub]Image2D to handle generating mipmaps. */
|
|
GenerateMipmapMode mipmapBeforeTexImage(const State& state, bool hardwareMipmapOn) const;
|
|
void mipmapAfterTexImage(State& state, GenerateMipmapMode beforeResult) const;
|
|
|
|
/** Helper method to generate mipmap levels by calling of glGenerateMipmapEXT.
|
|
* If it is not supported, then call the virtual allocateMipmap() method */
|
|
void generateMipmap(State& state) const;
|
|
|
|
/** Allocate mipmap levels of the texture by subsequent calling of glTexImage* function. */
|
|
virtual void allocateMipmap(State& state) const = 0;
|
|
|
|
/** Returns -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
|
|
int compareTexture(const Texture& rhs) const;
|
|
|
|
/** Returns -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
|
|
int compareTextureObjects(const Texture& rhs) const;
|
|
|
|
typedef buffered_value<unsigned int> TexParameterDirtyList;
|
|
mutable TexParameterDirtyList _texParametersDirtyList;
|
|
mutable TexParameterDirtyList _texMipmapGenerationDirtyList;
|
|
|
|
WrapMode _wrap_s;
|
|
WrapMode _wrap_t;
|
|
WrapMode _wrap_r;
|
|
|
|
FilterMode _min_filter;
|
|
FilterMode _mag_filter;
|
|
float _maxAnisotropy;
|
|
Vec4i _swizzle;
|
|
bool _useHardwareMipMapGeneration;
|
|
bool _unrefImageDataAfterApply;
|
|
bool _clientStorageHint;
|
|
bool _resizeNonPowerOfTwoHint;
|
|
|
|
Vec4d _borderColor;
|
|
GLint _borderWidth;
|
|
|
|
InternalFormatMode _internalFormatMode;
|
|
mutable InternalFormatType _internalFormatType;
|
|
mutable GLint _internalFormat;
|
|
mutable GLenum _sourceFormat;
|
|
mutable GLenum _sourceType;
|
|
|
|
bool _use_shadow_comparison;
|
|
ShadowCompareFunc _shadow_compare_func;
|
|
ShadowTextureMode _shadow_texture_mode;
|
|
float _shadow_ambient;
|
|
|
|
public:
|
|
|
|
struct OSG_EXPORT TextureProfile
|
|
{
|
|
inline TextureProfile(GLenum target):
|
|
_target(target),
|
|
_numMipmapLevels(0),
|
|
_internalFormat(0),
|
|
_width(0),
|
|
_height(0),
|
|
_depth(0),
|
|
_border(0),
|
|
_size(0) {}
|
|
|
|
inline TextureProfile(GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border):
|
|
_target(target),
|
|
_numMipmapLevels(numMipmapLevels),
|
|
_internalFormat(internalFormat),
|
|
_width(width),
|
|
_height(height),
|
|
_depth(depth),
|
|
_border(border),
|
|
_size(0) { computeSize(); }
|
|
|
|
|
|
#define LESSTHAN(A,B) if (A<B) return true; if (B<A) return false;
|
|
#define FINALLESSTHAN(A,B) return (A<B);
|
|
|
|
bool operator < (const TextureProfile& rhs) const
|
|
{
|
|
LESSTHAN(_size,rhs._size);
|
|
LESSTHAN(_target,rhs._target);
|
|
LESSTHAN(_numMipmapLevels,rhs._numMipmapLevels);
|
|
LESSTHAN(_internalFormat,rhs._internalFormat);
|
|
LESSTHAN(_width,rhs._width);
|
|
LESSTHAN(_height,rhs._height);
|
|
LESSTHAN(_depth,rhs._depth);
|
|
FINALLESSTHAN(_border, rhs._border);
|
|
}
|
|
|
|
bool operator == (const TextureProfile& rhs) const
|
|
{
|
|
return _target == rhs._target &&
|
|
_numMipmapLevels == rhs._numMipmapLevels &&
|
|
_internalFormat == rhs._internalFormat &&
|
|
_width == rhs._width &&
|
|
_height == rhs._height &&
|
|
_depth == rhs._depth &&
|
|
_border == rhs._border;
|
|
}
|
|
|
|
inline void set(GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border)
|
|
{
|
|
_numMipmapLevels = numMipmapLevels;
|
|
_internalFormat = internalFormat;
|
|
_width = width;
|
|
_height = height;
|
|
_depth = depth;
|
|
_border = border;
|
|
computeSize();
|
|
}
|
|
|
|
inline bool match(GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border)
|
|
{
|
|
return (_target == target) &&
|
|
(_numMipmapLevels == numMipmapLevels) &&
|
|
(_internalFormat == internalFormat) &&
|
|
(_width == width) &&
|
|
(_height == height) &&
|
|
(_depth == depth) &&
|
|
(_border == border);
|
|
}
|
|
|
|
void computeSize();
|
|
|
|
GLenum _target;
|
|
GLint _numMipmapLevels;
|
|
GLenum _internalFormat;
|
|
GLsizei _width;
|
|
GLsizei _height;
|
|
GLsizei _depth;
|
|
GLint _border;
|
|
unsigned int _size;
|
|
};
|
|
|
|
class OSG_EXPORT TextureObject : public GraphicsObject
|
|
{
|
|
public:
|
|
|
|
inline TextureObject(Texture* texture, GLuint id, GLenum target):
|
|
_id(id),
|
|
_profile(target),
|
|
_set(0),
|
|
_previous(0),
|
|
_next(0),
|
|
_texture(texture),
|
|
_allocated(false),
|
|
_frameLastUsed(0),
|
|
_timeStamp(0) {}
|
|
|
|
inline TextureObject(Texture* texture, GLuint id, const TextureProfile& profile):
|
|
_id(id),
|
|
_profile(profile),
|
|
_set(0),
|
|
_previous(0),
|
|
_next(0),
|
|
_texture(texture),
|
|
_allocated(false),
|
|
_frameLastUsed(0),
|
|
_timeStamp(0) {}
|
|
|
|
inline TextureObject(Texture* texture,
|
|
GLuint id,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border):
|
|
_id(id),
|
|
_profile(target,numMipmapLevels,internalFormat,width,height,depth,border),
|
|
_set(0),
|
|
_previous(0),
|
|
_next(0),
|
|
_texture(texture),
|
|
_allocated(false),
|
|
_frameLastUsed(0),
|
|
_timeStamp(0) {}
|
|
|
|
inline bool match(GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border)
|
|
{
|
|
return isReusable() &&
|
|
_profile.match(target,numMipmapLevels,internalFormat,width,height,depth,border);
|
|
}
|
|
|
|
|
|
void bind();
|
|
|
|
inline GLenum id() const { return _id; }
|
|
inline GLenum target() const { return _profile._target; }
|
|
|
|
inline unsigned int size() const { return _profile._size; }
|
|
|
|
inline void setTexture(Texture* texture) { _texture = texture; }
|
|
inline Texture* getTexture() const { return _texture; }
|
|
|
|
inline void setTimeStamp(double timestamp) { _timeStamp = timestamp; }
|
|
inline double getTimeStamp() const { return _timeStamp; }
|
|
|
|
inline void setAllocated(bool allocated=true) { _allocated = allocated; }
|
|
|
|
void setAllocated(GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border);
|
|
|
|
inline bool isAllocated() const { return _allocated; }
|
|
|
|
inline bool isReusable() const { return _allocated && _profile._width!=0; }
|
|
|
|
/** release TextureObject to the orphan list to be reused or deleted.*/
|
|
void release();
|
|
|
|
GLuint _id;
|
|
TextureProfile _profile;
|
|
TextureObjectSet* _set;
|
|
TextureObject* _previous;
|
|
TextureObject* _next;
|
|
Texture* _texture;
|
|
bool _allocated;
|
|
unsigned int _frameLastUsed;
|
|
double _timeStamp;
|
|
|
|
protected:
|
|
virtual ~TextureObject();
|
|
|
|
};
|
|
|
|
typedef std::list< ref_ptr<TextureObject> > TextureObjectList;
|
|
|
|
|
|
static osg::ref_ptr<TextureObject> generateTextureObject(const Texture* texture, unsigned int contextID,GLenum target);
|
|
|
|
static osg::ref_ptr<TextureObject> generateTextureObject(const Texture* texture,
|
|
unsigned int contextID,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border);
|
|
|
|
TextureObject* generateAndAssignTextureObject(unsigned int contextID, GLenum target) const;
|
|
|
|
TextureObject* generateAndAssignTextureObject(unsigned int contextID,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border) const;
|
|
|
|
protected:
|
|
|
|
typedef buffered_object< ref_ptr<TextureObject> > TextureObjectBuffer;
|
|
mutable TextureObjectBuffer _textureObjectBuffer;
|
|
mutable ref_ptr<GraphicsContext> _readPBuffer;
|
|
|
|
};
|
|
|
|
class OSG_EXPORT TextureObjectSet : public Referenced
|
|
{
|
|
public:
|
|
TextureObjectSet(TextureObjectManager* parent, const Texture::TextureProfile& profile);
|
|
|
|
const Texture::TextureProfile& getProfile() const { return _profile; }
|
|
|
|
void handlePendingOrphandedTextureObjects();
|
|
|
|
void deleteAllTextureObjects();
|
|
void discardAllTextureObjects();
|
|
void flushAllDeletedTextureObjects();
|
|
void discardAllDeletedTextureObjects();
|
|
void flushDeletedTextureObjects(double currentTime, double& availableTime);
|
|
|
|
osg::ref_ptr<Texture::TextureObject> takeFromOrphans(Texture* texture);
|
|
osg::ref_ptr<Texture::TextureObject> takeOrGenerate(Texture* texture);
|
|
void moveToBack(Texture::TextureObject* to);
|
|
void addToBack(Texture::TextureObject* to);
|
|
void orphan(Texture::TextureObject* to);
|
|
void remove(Texture::TextureObject* to);
|
|
void moveToSet(Texture::TextureObject* to, TextureObjectSet* set);
|
|
|
|
unsigned int size() const { return _profile._size * _numOfTextureObjects; }
|
|
|
|
bool makeSpace(unsigned int& size);
|
|
|
|
bool checkConsistency() const;
|
|
|
|
TextureObjectManager* getParent() { return _parent; }
|
|
|
|
unsigned int computeNumTextureObjectsInList() const;
|
|
unsigned int getNumOfTextureObjects() const { return _numOfTextureObjects; }
|
|
unsigned int getNumOrphans() const { return static_cast<unsigned int>(_orphanedTextureObjects.size()); }
|
|
unsigned int getNumPendingOrphans() const { return static_cast<unsigned int>(_pendingOrphanedTextureObjects.size()); }
|
|
|
|
protected:
|
|
|
|
virtual ~TextureObjectSet();
|
|
|
|
OpenThreads::Mutex _mutex;
|
|
|
|
TextureObjectManager* _parent;
|
|
unsigned int _contextID;
|
|
Texture::TextureProfile _profile;
|
|
unsigned int _numOfTextureObjects;
|
|
Texture::TextureObjectList _orphanedTextureObjects;
|
|
Texture::TextureObjectList _pendingOrphanedTextureObjects;
|
|
|
|
Texture::TextureObject* _head;
|
|
Texture::TextureObject* _tail;
|
|
|
|
};
|
|
|
|
class OSG_EXPORT TextureObjectManager : public GraphicsObjectManager
|
|
{
|
|
public:
|
|
TextureObjectManager(unsigned int contextID);
|
|
|
|
|
|
void setNumberActiveTextureObjects(unsigned int size) { _numActiveTextureObjects = size; }
|
|
unsigned int& getNumberActiveTextureObjects() { return _numActiveTextureObjects; }
|
|
unsigned int getNumberActiveTextureObjects() const { return _numActiveTextureObjects; }
|
|
|
|
void setNumberOrphanedTextureObjects(unsigned int size) { _numOrphanedTextureObjects = size; }
|
|
unsigned int& getNumberOrphanedTextureObjects() { return _numOrphanedTextureObjects; }
|
|
unsigned int getNumberOrphanedTextureObjects() const { return _numOrphanedTextureObjects; }
|
|
|
|
void setCurrTexturePoolSize(unsigned int size) { _currTexturePoolSize = size; }
|
|
unsigned int& getCurrTexturePoolSize() { return _currTexturePoolSize; }
|
|
unsigned int getCurrTexturePoolSize() const { return _currTexturePoolSize; }
|
|
|
|
void setMaxTexturePoolSize(unsigned int size);
|
|
unsigned int getMaxTexturePoolSize() const { return _maxTexturePoolSize; }
|
|
|
|
bool hasSpace(unsigned int size) const { return (_currTexturePoolSize+size)<=_maxTexturePoolSize; }
|
|
bool makeSpace(unsigned int size);
|
|
|
|
osg::ref_ptr<Texture::TextureObject> generateTextureObject(const Texture* texture, GLenum target);
|
|
osg::ref_ptr<Texture::TextureObject> generateTextureObject(const Texture* texture,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border);
|
|
void handlePendingOrphandedTextureObjects();
|
|
|
|
void deleteAllGLObjects();
|
|
void discardAllGLObjects();
|
|
void flushAllDeletedGLObjects();
|
|
void discardAllDeletedGLObjects();
|
|
void flushDeletedGLObjects(double currentTime, double& availableTime);
|
|
|
|
TextureObjectSet* getTextureObjectSet(const Texture::TextureProfile& profile);
|
|
|
|
void newFrame(osg::FrameStamp* fs);
|
|
void resetStats();
|
|
void reportStats(std::ostream& out);
|
|
void recomputeStats(std::ostream& out) const;
|
|
bool checkConsistency() const;
|
|
|
|
unsigned int& getFrameNumber() { return _frameNumber; }
|
|
unsigned int& getNumberFrames() { return _numFrames; }
|
|
|
|
unsigned int& getNumberDeleted() { return _numDeleted; }
|
|
double& getDeleteTime() { return _deleteTime; }
|
|
|
|
unsigned int& getNumberGenerated() { return _numGenerated; }
|
|
double& getGenerateTime() { return _generateTime; }
|
|
|
|
protected:
|
|
|
|
~TextureObjectManager();
|
|
|
|
typedef std::map< Texture::TextureProfile, osg::ref_ptr<TextureObjectSet> > TextureSetMap;
|
|
|
|
unsigned int _numActiveTextureObjects;
|
|
unsigned int _numOrphanedTextureObjects;
|
|
unsigned int _currTexturePoolSize;
|
|
unsigned int _maxTexturePoolSize;
|
|
TextureSetMap _textureSetMap;
|
|
|
|
unsigned int _frameNumber;
|
|
|
|
unsigned int _numFrames;
|
|
unsigned int _numDeleted;
|
|
double _deleteTime;
|
|
|
|
unsigned int _numGenerated;
|
|
double _generateTime;
|
|
};
|
|
}
|
|
|
|
#endif
|