mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-29 11:05:36 -05:00
830 lines
20 KiB
C++
830 lines
20 KiB
C++
/*
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* Copyright 2011-2014 Branimir Karadzic. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#ifndef BGFX_RENDERER_GL_H_HEADER_GUARD
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#define BGFX_RENDERER_GL_H_HEADER_GUARD
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#define BGFX_USE_EGL (BGFX_CONFIG_RENDERER_OPENGLES && (BX_PLATFORM_ANDROID || BX_PLATFORM_EMSCRIPTEN || BX_PLATFORM_QNX || BX_PLATFORM_WINDOWS) )
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#define BGFX_USE_WGL (BGFX_CONFIG_RENDERER_OPENGL && BX_PLATFORM_WINDOWS)
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#define BGFX_USE_GL_DYNAMIC_LIB (BX_PLATFORM_LINUX || BX_PLATFORM_OSX || BX_PLATFORM_WINDOWS)
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#if BGFX_CONFIG_RENDERER_OPENGL
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# if BGFX_CONFIG_RENDERER_OPENGL >= 31
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# include <gl/glcorearb.h>
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# if BX_PLATFORM_OSX
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# define GL_ARB_shader_objects // OSX collsion with GLhandleARB in gltypes.h
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# endif // BX_PLATFORM_OSX
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# else
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# if BX_PLATFORM_LINUX
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# define GL_PROTOTYPES
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# define GL_GLEXT_LEGACY
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# include <GL/gl.h>
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# undef GL_PROTOTYPES
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# elif BX_PLATFORM_OSX
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# define GL_GLEXT_LEGACY
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# define long ptrdiff_t
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# include <OpenGL/gl.h>
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# undef long
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# undef GL_VERSION_1_2
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# undef GL_VERSION_1_3
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# undef GL_VERSION_1_4
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# undef GL_VERSION_1_5
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# undef GL_VERSION_2_0
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# else
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# include <GL/gl.h>
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# endif // BX_PLATFORM_
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# include <gl/glext.h>
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# endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
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#elif BGFX_CONFIG_RENDERER_OPENGLES
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typedef double GLdouble;
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# if BGFX_CONFIG_RENDERER_OPENGLES < 30
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# if BX_PLATFORM_IOS
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# include <OpenGLES/ES2/gl.h>
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# include <OpenGLES/ES2/glext.h>
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//#define GL_UNSIGNED_INT_10_10_10_2_OES 0x8DF6
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#define GL_UNSIGNED_INT_2_10_10_10_REV_EXT 0x8368
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#define GL_TEXTURE_3D_OES 0x806F
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#define GL_SAMPLER_3D_OES 0x8B5F
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#define GL_TEXTURE_WRAP_R_OES 0x8072
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#define GL_PROGRAM_BINARY_LENGTH_OES 0x8741
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# else
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# include <GLES2/gl2platform.h>
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# include <GLES2/gl2.h>
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# include <GLES2/gl2ext.h>
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# endif // BX_PLATFORM_
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typedef int64_t GLint64;
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typedef uint64_t GLuint64;
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# define GL_PROGRAM_BINARY_LENGTH GL_PROGRAM_BINARY_LENGTH_OES
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# define GL_HALF_FLOAT GL_HALF_FLOAT_OES
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# define GL_RGBA8 GL_RGBA8_OES
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# define GL_UNSIGNED_INT_2_10_10_10_REV GL_UNSIGNED_INT_2_10_10_10_REV_EXT
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# define GL_TEXTURE_3D GL_TEXTURE_3D_OES
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# define GL_SAMPLER_3D GL_SAMPLER_3D_OES
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# define GL_TEXTURE_WRAP_R GL_TEXTURE_WRAP_R_OES
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# define GL_MIN GL_MIN_EXT
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# define GL_MAX GL_MAX_EXT
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# define GL_DEPTH_COMPONENT24 GL_DEPTH_COMPONENT24_OES
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# define GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_OES
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# define GL_DEPTH_COMPONENT32 GL_DEPTH_COMPONENT32_OES
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# define GL_UNSIGNED_INT_24_8 GL_UNSIGNED_INT_24_8_OES
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# elif BGFX_CONFIG_RENDERER_OPENGLES >= 30
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# include <GLES3/gl3platform.h>
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# include <GLES3/gl3.h>
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# include <GLES3/gl3ext.h>
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# endif // BGFX_CONFIG_RENDERER_
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# if BGFX_USE_EGL
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# include "glcontext_egl.h"
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# endif // BGFX_USE_EGL
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# if BX_PLATFORM_EMSCRIPTEN
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# include <emscripten/emscripten.h>
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# endif // BX_PLATFORM_EMSCRIPTEN
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#endif // BGFX_CONFIG_RENDERER_OPENGL
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#ifndef GL_LUMINANCE
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# define GL_LUMINANCE 0x1909
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#endif // GL_LUMINANCE
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#ifndef GL_BGRA
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# define GL_BGRA 0x80E1
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#endif // GL_BGRA
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#ifndef GL_R8
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# define GL_R8 0x8229
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#endif // GL_R8
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#ifndef GL_R16
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# define GL_R16 0x822A
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#endif // GL_R16
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#ifndef GL_R16F
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# define GL_R16F 0x822D
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#endif // GL_R16F
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#ifndef GL_R32F
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# define GL_R32F 0x822E
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#endif // GL_R32F
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#ifndef GL_RED
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# define GL_RED 0x1903
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#endif // GL_RED
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#ifndef GL_RED_INTEGER
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# define GL_RED_INTEGER 0x8D94
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#endif // GL_RED_INTEGER
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#ifndef GL_GREEN
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# define GL_GREEN 0x1904
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#endif // GL_GREEN
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#ifndef GL_BLUE
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# define GL_BLUE 0x1905
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#endif // GL_BLUE
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#ifndef GL_RGBA_INTEGER
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# define GL_RGBA_INTEGER 0x8D99
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#endif // GL_RGBA_INTEGER
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#ifndef GL_RGB10_A2
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# define GL_RGB10_A2 0x8059
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#endif // GL_RGB10_A2
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#ifndef GL_RGBA16
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# define GL_RGBA16 0x805B
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#endif // GL_RGBA16
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#ifndef GL_RGBA16F
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# define GL_RGBA16F 0x881A
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#endif // GL_RGBA16F
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#ifndef GL_R16UI
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# define GL_R16UI 0x8234
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#endif // GL_R16UI
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#ifndef GL_RGBA16UI
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# define GL_RGBA16UI 0x8D76
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#endif // GL_RGBA16UI
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#ifndef GL_COMPRESSED_RGB_S3TC_DXT1_EXT
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# define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
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#endif // GL_COMPRESSED_RGB_S3TC_DXT1_EXT
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#ifndef GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
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# define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
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#endif // GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
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#ifndef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
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# define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
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#endif // GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
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#ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
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# define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
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#endif // GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
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#ifndef GL_COMPRESSED_LUMINANCE_LATC1_EXT
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# define GL_COMPRESSED_LUMINANCE_LATC1_EXT 0x8C70
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#endif // GL_COMPRESSED_LUMINANCE_LATC1_EXT
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#ifndef GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
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# define GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT 0x8C72
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#endif // GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
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#ifndef GL_COMPRESSED_RED_RGTC1
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# define GL_COMPRESSED_RED_RGTC1 0x8DBB
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#endif // GL_COMPRESSED_RED_RGTC1
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#ifndef GL_COMPRESSED_RG_RGTC2
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# define GL_COMPRESSED_RG_RGTC2 0x8DBD
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#endif // GL_COMPRESSED_RG_RGTC2
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#ifndef GL_ETC1_RGB8_OES
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# define GL_ETC1_RGB8_OES 0x8D64
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#endif // GL_ETC1_RGB8_OES
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#ifndef GL_COMPRESSED_RGB8_ETC2
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# define GL_COMPRESSED_RGB8_ETC2 0x9274
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#endif // GL_COMPRESSED_RGB8_ETC2
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#ifndef GL_COMPRESSED_RGBA8_ETC2_EAC
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# define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278
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#endif // GL_COMPRESSED_RGBA8_ETC2_EAC
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#ifndef GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
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# define GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9276
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#endif // GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
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#ifndef GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG
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# define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01
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#endif // GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG
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#ifndef GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG
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# define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03
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#endif // GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG
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#ifndef GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG
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# define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00
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#endif // GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG
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#ifndef GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG
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# define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02
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#endif // GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG
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#ifndef GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG
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# define GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG 0x9137
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#endif // GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG
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#ifndef GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG
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# define GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG 0x9138
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#endif // GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG
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#ifndef GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE
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# define GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE 0x93A0
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#endif // GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE
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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 // GL_TEXTURE_MAX_ANISOTROPY_EXT
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#ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
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# define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
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#endif // GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
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#ifndef GL_TEXTURE_SWIZZLE_RGBA
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# define GL_TEXTURE_SWIZZLE_RGBA 0x8E46
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#endif // GL_TEXTURE_SWIZZLE_RGBA
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#ifndef GL_MAX_SAMPLES
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# define GL_MAX_SAMPLES 0x8D57
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#endif // GL_MAX_SAMPLES
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#ifndef GL_MAX_COLOR_ATTACHMENTS
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# define GL_MAX_COLOR_ATTACHMENTS 0x8CDF
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#endif // GL_MAX_COLOR_ATTACHMENTS
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#ifndef GL_QUERY_RESULT
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# define GL_QUERY_RESULT 0x8866
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#endif // GL_QUERY_RESULT
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#ifndef GL_READ_FRAMEBUFFER
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# define GL_READ_FRAMEBUFFER 0x8CA8
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#endif /// GL_READ_FRAMEBUFFER
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#ifndef GL_DRAW_FRAMEBUFFER
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# define GL_DRAW_FRAMEBUFFER 0x8CA9
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#endif // GL_DRAW_FRAMEBUFFER
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#ifndef GL_TIME_ELAPSED
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# define GL_TIME_ELAPSED 0x88BF
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#endif // GL_TIME_ELAPSED
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#ifndef GL_VBO_FREE_MEMORY_ATI
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# define GL_VBO_FREE_MEMORY_ATI 0x87FB
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#endif // GL_VBO_FREE_MEMORY_ATI
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#ifndef GL_TEXTURE_FREE_MEMORY_ATI
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# define GL_TEXTURE_FREE_MEMORY_ATI 0x87FC
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#endif // GL_TEXTURE_FREE_MEMORY_ATI
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#ifndef GL_RENDERBUFFER_FREE_MEMORY_ATI
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# define GL_RENDERBUFFER_FREE_MEMORY_ATI 0x87FD
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#endif // GL_RENDERBUFFER_FREE_MEMORY_ATI
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// http://developer.download.nvidia.com/opengl/specs/GL_NVX_gpu_memory_info.txt
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#ifndef GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
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# define GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX 0x9047
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#endif // GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
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#ifndef GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
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# define GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX 0x9048
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#endif // GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX
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#ifndef GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
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# define GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX 0x9049
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#endif // GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX
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#ifndef GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
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# define GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX 0x904A
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#endif // GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX
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#ifndef GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
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# define GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX 0x904B
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#endif // GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX
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#ifndef GL_UNPACK_ROW_LENGTH
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# define GL_UNPACK_ROW_LENGTH 0x0CF2
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#endif // GL_UNPACK_ROW_LENGTH
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#ifndef GL_DEPTH_STENCIL
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# define GL_DEPTH_STENCIL 0x84F9
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#endif // GL_DEPTH_STENCIL
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#ifndef GL_DEPTH_COMPONENT32
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# define GL_DEPTH_COMPONENT32 0x81A7
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#endif // GL_DEPTH_COMPONENT32
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#ifndef GL_DEPTH_COMPONENT32F
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# define GL_DEPTH_COMPONENT32F 0x8CAC
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#endif // GL_DEPTH_COMPONENT32F
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#ifndef GL_DEPTH_STENCIL_ATTACHMENT
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# define GL_DEPTH_STENCIL_ATTACHMENT 0x821A
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#endif // GL_DEPTH_STENCIL_ATTACHMENT
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#ifndef GL_TEXTURE_COMPARE_MODE
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# define GL_TEXTURE_COMPARE_MODE 0x884C
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#endif // GL_TEXTURE_COMPARE_MODE
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#ifndef GL_TEXTURE_COMPARE_FUNC
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# define GL_TEXTURE_COMPARE_FUNC 0x884D
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#endif // GL_TEXTURE_COMPARE_FUNC
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#ifndef GL_COMPARE_REF_TO_TEXTURE
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# define GL_COMPARE_REF_TO_TEXTURE 0x884E
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#endif // GL_COMPARE_REF_TO_TEXTURE
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#ifndef GL_SAMPLER_2D_SHADOW
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# define GL_SAMPLER_2D_SHADOW 0x8B62
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#endif // GL_SAMPLER_2D_SHADOW
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#ifndef GL_TEXTURE_MAX_LEVEL
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# define GL_TEXTURE_MAX_LEVEL 0x813D
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#endif // GL_TEXTURE_MAX_LEVEL
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#ifndef GL_COMPUTE_SHADER
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# define GL_COMPUTE_SHADER 0x91B9
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#endif // GL_COMPUTE_SHADER
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#ifndef GL_READ_ONLY
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# define GL_READ_ONLY 0x88B8
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#endif // GL_READ_ONLY
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#ifndef GL_WRITE_ONLY
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# define GL_WRITE_ONLY 0x88B9
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#endif // GL_WRITE_ONLY
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#ifndef GL_READ_WRITE
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# define GL_READ_WRITE 0x88BA
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#endif // GL_READ_WRITE
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#ifndef GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT
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# define GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001
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#endif // GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT
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#ifndef GL_ELEMENT_ARRAY_BARRIER_BIT
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# define GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002
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#endif // GL_ELEMENT_ARRAY_BARRIER_BIT
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#ifndef GL_SHADER_IMAGE_ACCESS_BARRIER_BIT
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# define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020
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#endif // GL_SHADER_IMAGE_ACCESS_BARRIER_BIT
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#ifndef GL_SHADER_STORAGE_BARRIER_BIT
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# define GL_SHADER_STORAGE_BARRIER_BIT 0x00002000
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#endif // GL_SHADER_STORAGE_BARRIER_BIT
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#ifndef GL_SHADER_STORAGE_BUFFER
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# define GL_SHADER_STORAGE_BUFFER 0x90D2
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#endif // GL_SHADER_STORAGE_BUFFER
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#ifndef GL_IMAGE_1D
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# define GL_IMAGE_1D 0x904C
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#endif // GL_IMAGE_1D
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#ifndef GL_IMAGE_2D
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# define GL_IMAGE_2D 0x904D
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#endif // GL_IMAGE_2D
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#ifndef GL_IMAGE_3D
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# define GL_IMAGE_3D 0x904E
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#endif // GL_IMAGE_3D
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#ifndef GL_IMAGE_CUBE
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# define GL_IMAGE_CUBE 0x9050
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#endif // GL_IMAGE_CUBE
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#ifndef GL_PROGRAM_INPUT
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# define GL_PROGRAM_INPUT 0x92E3
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#endif // GL_PROGRAM_INPUT
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#ifndef GL_ACTIVE_RESOURCES
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# define GL_ACTIVE_RESOURCES 0x92F5
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#endif // GL_ACTIVE_RESOURCES
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#ifndef GL_UNIFORM
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# define GL_UNIFORM 0x92E1
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#endif // GL_UNIFORM
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#ifndef GL_BUFFER_VARIABLE
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# define GL_BUFFER_VARIABLE 0x92E5
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#endif // GL_BUFFER_VARIABLE
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#ifndef GL_UNSIGNED_INT_VEC2
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# define GL_UNSIGNED_INT_VEC2 0x8DC6
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#endif // GL_UNSIGNED_INT_VEC2
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#ifndef GL_UNSIGNED_INT_VEC3
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# define GL_UNSIGNED_INT_VEC3 0x8DC7
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#endif // GL_UNSIGNED_INT_VEC3
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#ifndef GL_UNSIGNED_INT_VEC4
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# define GL_UNSIGNED_INT_VEC4 0x8DC8
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#endif // GL_UNSIGNED_INT_VEC4
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#ifndef GL_TYPE
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# define GL_TYPE 0x92FA
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#endif // GL_TYPE
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#if BX_PLATFORM_NACL
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# include "glcontext_ppapi.h"
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#elif BX_PLATFORM_WINDOWS
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# include <windows.h>
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#elif BX_PLATFORM_LINUX
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# include "glcontext_glx.h"
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#elif BX_PLATFORM_OSX
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# include "glcontext_nsgl.h"
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#elif BX_PLATFORM_IOS
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# include "glcontext_eagl.h"
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#endif // BX_PLATFORM_
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#if BGFX_USE_WGL
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# include "glcontext_wgl.h"
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#endif // BGFX_USE_WGL
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#ifndef GL_APIENTRY
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# define GL_APIENTRY APIENTRY
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#endif // GL_APIENTRY
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#ifndef GL_APIENTRYP
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# define GL_APIENTRYP GL_APIENTRY*
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#endif // GL_APIENTRYP
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#if !BGFX_CONFIG_RENDERER_OPENGL
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# define glClearDepth glClearDepthf
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#endif // !BGFX_CONFIG_RENDERER_OPENGL
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namespace bgfx
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{
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class ConstantBuffer;
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void dumpExtensions(const char* _extensions);
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const char* glEnumName(GLenum _enum);
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#define _GL_CHECK(_check, _call) \
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BX_MACRO_BLOCK_BEGIN \
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/*BX_TRACE(#_call);*/ \
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_call; \
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GLenum err = glGetError(); \
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_check(0 == err, #_call "; GL error 0x%x: %s", err, glEnumName(err) ); \
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BX_UNUSED(err); \
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BX_MACRO_BLOCK_END
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#define IGNORE_GL_ERROR_CHECK(...) BX_NOOP()
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#if BGFX_CONFIG_DEBUG
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# define GL_CHECK(_call) _GL_CHECK(BX_CHECK, _call)
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# define GL_CHECK_I(_call) _GL_CHECK(IGNORE_GL_ERROR_CHECK, _call)
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#else
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# define GL_CHECK(_call) _call
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# define GL_CHECK_I(_call) _call
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#endif // BGFX_CONFIG_DEBUG
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#define GL_IMPORT_TYPEDEFS 1
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#define GL_IMPORT(_optional, _proto, _func, _import) extern _proto _func
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#include "glimports.h"
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class VaoStateCache
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{
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public:
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GLuint add(uint32_t _hash)
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{
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invalidate(_hash);
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GLuint arrayId;
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GL_CHECK(glGenVertexArrays(1, &arrayId) );
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m_hashMap.insert(stl::make_pair(_hash, arrayId) );
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return arrayId;
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}
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GLuint find(uint32_t _hash)
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{
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HashMap::iterator it = m_hashMap.find(_hash);
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if (it != m_hashMap.end() )
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{
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return it->second;
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}
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return UINT32_MAX;
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}
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void invalidate(uint32_t _hash)
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{
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GL_CHECK(glBindVertexArray(0) );
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HashMap::iterator it = m_hashMap.find(_hash);
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if (it != m_hashMap.end() )
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{
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GL_CHECK(glDeleteVertexArrays(1, &it->second) );
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m_hashMap.erase(it);
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}
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}
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void invalidate()
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{
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GL_CHECK(glBindVertexArray(0) );
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for (HashMap::iterator it = m_hashMap.begin(), itEnd = m_hashMap.end(); it != itEnd; ++it)
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{
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GL_CHECK(glDeleteVertexArrays(1, &it->second) );
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}
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m_hashMap.clear();
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}
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private:
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typedef stl::unordered_map<uint32_t, GLuint> HashMap;
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HashMap m_hashMap;
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};
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class VaoCacheRef
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{
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public:
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void add(uint32_t _hash)
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{
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m_vaoSet.insert(_hash);
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}
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void invalidate(VaoStateCache& _vaoCache)
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{
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for (VaoSet::iterator it = m_vaoSet.begin(), itEnd = m_vaoSet.end(); it != itEnd; ++it)
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{
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_vaoCache.invalidate(*it);
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}
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m_vaoSet.clear();
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}
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typedef stl::unordered_set<uint32_t> VaoSet;
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VaoSet m_vaoSet;
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};
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class SamplerStateCache
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{
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public:
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GLuint add(uint32_t _hash)
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{
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invalidate(_hash);
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GLuint samplerId;
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GL_CHECK(glGenSamplers(1, &samplerId) );
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m_hashMap.insert(stl::make_pair(_hash, samplerId) );
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return samplerId;
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}
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GLuint find(uint32_t _hash)
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{
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HashMap::iterator it = m_hashMap.find(_hash);
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if (it != m_hashMap.end() )
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{
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return it->second;
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}
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return UINT32_MAX;
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}
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void invalidate(uint32_t _hash)
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{
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HashMap::iterator it = m_hashMap.find(_hash);
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if (it != m_hashMap.end() )
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{
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GL_CHECK(glDeleteSamplers(1, &it->second) );
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m_hashMap.erase(it);
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}
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}
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void invalidate()
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{
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for (HashMap::iterator it = m_hashMap.begin(), itEnd = m_hashMap.end(); it != itEnd; ++it)
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{
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GL_CHECK(glDeleteSamplers(1, &it->second) );
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}
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m_hashMap.clear();
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}
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private:
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typedef stl::unordered_map<uint32_t, GLuint> HashMap;
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HashMap m_hashMap;
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};
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struct IndexBufferGL
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{
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void create(uint32_t _size, void* _data)
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{
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m_size = _size;
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GL_CHECK(glGenBuffers(1, &m_id) );
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BX_CHECK(0 != m_id, "Failed to generate buffer id.");
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GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_id) );
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GL_CHECK(glBufferData(GL_ELEMENT_ARRAY_BUFFER
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, _size
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, _data
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, (NULL==_data)?GL_DYNAMIC_DRAW:GL_STATIC_DRAW
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) );
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GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
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}
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void update(uint32_t _offset, uint32_t _size, void* _data)
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{
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BX_CHECK(0 != m_id, "Updating invalid index buffer.");
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GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_id) );
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GL_CHECK(glBufferSubData(GL_ELEMENT_ARRAY_BUFFER
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, _offset
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, _size
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, _data
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) );
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GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
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}
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void destroy();
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void add(uint32_t _hash)
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{
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m_vcref.add(_hash);
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}
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GLuint m_id;
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uint32_t m_size;
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VaoCacheRef m_vcref;
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};
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struct VertexBufferGL
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{
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void create(uint32_t _size, void* _data, VertexDeclHandle _declHandle)
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{
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m_size = _size;
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m_decl = _declHandle;
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GL_CHECK(glGenBuffers(1, &m_id) );
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BX_CHECK(0 != m_id, "Failed to generate buffer id.");
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GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, m_id) );
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GL_CHECK(glBufferData(GL_ARRAY_BUFFER
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, _size
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, _data
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, (NULL==_data)?GL_DYNAMIC_DRAW:GL_STATIC_DRAW
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) );
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GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, 0) );
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}
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void update(uint32_t _offset, uint32_t _size, void* _data)
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{
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BX_CHECK(0 != m_id, "Updating invalid vertex buffer.");
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GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, m_id) );
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GL_CHECK(glBufferSubData(GL_ARRAY_BUFFER
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, _offset
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, _size
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, _data
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) );
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GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, 0) );
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}
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void destroy();
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void add(uint32_t _hash)
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{
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m_vcref.add(_hash);
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}
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GLuint m_id;
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uint32_t m_size;
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VertexDeclHandle m_decl;
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VaoCacheRef m_vcref;
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};
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struct TextureGL
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{
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TextureGL()
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: m_id(0)
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, m_rbo(0)
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, m_target(GL_TEXTURE_2D)
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, m_fmt(GL_ZERO)
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, m_type(GL_ZERO)
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, m_flags(0)
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, m_currentFlags(UINT32_MAX)
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, m_numMips(0)
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{
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}
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bool init(GLenum _target, uint32_t _width, uint32_t _height, uint8_t _format, uint8_t _numMips, uint32_t _flags);
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void create(const Memory* _mem, uint32_t _flags, uint8_t _skip);
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void destroy();
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void update(uint8_t _side, uint8_t _mip, const Rect& _rect, uint16_t _z, uint16_t _depth, uint16_t _pitch, const Memory* _mem);
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void setSamplerState(uint32_t _flags);
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void commit(uint32_t _stage, uint32_t _flags);
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GLuint m_id;
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GLuint m_rbo;
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GLenum m_target;
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GLenum m_fmt;
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GLenum m_type;
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uint32_t m_flags;
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uint32_t m_currentFlags;
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uint32_t m_width;
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uint32_t m_height;
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uint8_t m_numMips;
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uint8_t m_requestedFormat;
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uint8_t m_textureFormat;
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};
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struct ShaderGL
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{
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ShaderGL()
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: m_id(0)
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, m_type(0)
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, m_hash(0)
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{
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}
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void create(Memory* _mem);
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void destroy();
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GLuint m_id;
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GLenum m_type;
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uint32_t m_hash;
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};
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struct FrameBufferGL
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{
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FrameBufferGL()
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: m_num(0)
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{
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memset(m_fbo, 0, sizeof(m_fbo) );
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}
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void create(uint8_t _num, const TextureHandle* _handles);
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void destroy();
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void resolve();
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uint8_t m_num;
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GLuint m_fbo[2];
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uint32_t m_width;
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uint32_t m_height;
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};
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struct ProgramGL
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{
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ProgramGL()
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: m_id(0)
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, m_constantBuffer(NULL)
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, m_numPredefined(0)
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{
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}
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void create(const ShaderGL& _vsh, const ShaderGL& _fsh);
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void destroy();
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void init();
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void bindAttributes(const VertexDecl& _vertexDecl, uint32_t _baseVertex = 0) const;
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void bindInstanceData(uint32_t _stride, uint32_t _baseVertex = 0) const;
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void add(uint32_t _hash)
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{
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m_vcref.add(_hash);
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}
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GLuint m_id;
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uint8_t m_used[Attrib::Count+1]; // dense
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GLint m_attributes[Attrib::Count]; // sparse
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GLint m_instanceData[BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT];
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GLint m_sampler[BGFX_CONFIG_MAX_TEXTURES];
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uint8_t m_numSamplers;
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ConstantBuffer* m_constantBuffer;
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PredefinedUniform m_predefined[PredefinedUniform::Count];
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uint8_t m_numPredefined;
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VaoCacheRef m_vcref;
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};
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struct QueriesGL
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{
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void create()
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{
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glGenQueries(BX_COUNTOF(m_queries), m_queries);
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}
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void destroy()
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{
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glDeleteQueries(BX_COUNTOF(m_queries), m_queries);
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}
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void begin(uint16_t _id, GLenum _target) const
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{
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glBeginQuery(_target, m_queries[_id]);
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}
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void end(GLenum _target) const
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{
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glEndQuery(_target);
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}
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uint64_t getResult(uint16_t _id) const
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{
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uint64_t result;
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glGetQueryObjectui64v(m_queries[_id], GL_QUERY_RESULT, &result);
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return result;
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}
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GLuint m_queries[64];
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};
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} // namespace bgfx
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#endif // BGFX_RENDERER_GL_H_HEADER_GUARD
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