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renderer_gl.cpp
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renderer_gl.cpp
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/*
* Copyright 2011-2024 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
*/
#include "bgfx_p.h"
#if (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
# include "renderer_gl.h"
# include <bx/timer.h>
# include <bx/uint32_t.h>
# include "emscripten.h"
namespace bgfx { namespace gl
{
static char s_viewName[BGFX_CONFIG_MAX_VIEWS][BGFX_CONFIG_MAX_VIEW_NAME];
inline void setViewType(ViewId _view, const bx::StringView _str)
{
if (BX_ENABLED(BGFX_CONFIG_DEBUG_ANNOTATION || BGFX_CONFIG_PROFILER) )
{
bx::memCopy(&s_viewName[_view][3], _str.getPtr(), _str.getLength() );
}
}
struct PrimInfo
{
GLenum m_type;
uint32_t m_min;
uint32_t m_div;
uint32_t m_sub;
};
static const PrimInfo s_primInfo[] =
{
{ GL_TRIANGLES, 3, 3, 0 },
{ GL_TRIANGLE_STRIP, 3, 1, 2 },
{ GL_LINES, 2, 2, 0 },
{ GL_LINE_STRIP, 2, 1, 1 },
{ GL_POINTS, 1, 1, 0 },
{ GL_ZERO, 0, 0, 0 },
};
BX_STATIC_ASSERT(Topology::Count == BX_COUNTOF(s_primInfo)-1);
static const char* s_attribName[] =
{
"a_position",
"a_normal",
"a_tangent",
"a_bitangent",
"a_color0",
"a_color1",
"a_color2",
"a_color3",
"a_indices",
"a_weight",
"a_texcoord0",
"a_texcoord1",
"a_texcoord2",
"a_texcoord3",
"a_texcoord4",
"a_texcoord5",
"a_texcoord6",
"a_texcoord7",
};
BX_STATIC_ASSERT(Attrib::Count == BX_COUNTOF(s_attribName) );
static const char* s_instanceDataName[] =
{
"i_data0",
"i_data1",
"i_data2",
"i_data3",
"i_data4",
};
BX_STATIC_ASSERT(BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT == BX_COUNTOF(s_instanceDataName) );
static const GLenum s_access[] =
{
GL_READ_ONLY,
GL_WRITE_ONLY,
GL_READ_WRITE,
};
BX_STATIC_ASSERT(Access::Count == BX_COUNTOF(s_access) );
static const GLenum s_attribType[] =
{
GL_UNSIGNED_BYTE, // Uint8
GL_UNSIGNED_INT_10_10_10_2, // Uint10
GL_SHORT, // Int16
GL_HALF_FLOAT, // Half
GL_FLOAT, // Float
};
BX_STATIC_ASSERT(AttribType::Count == BX_COUNTOF(s_attribType) );
struct Blend
{
GLenum m_src;
GLenum m_dst;
bool m_factor;
};
static const Blend s_blendFactor[] =
{
{ 0, 0, false }, // ignored
{ GL_ZERO, GL_ZERO, false }, // ZERO
{ GL_ONE, GL_ONE, false }, // ONE
{ GL_SRC_COLOR, GL_SRC_COLOR, false }, // SRC_COLOR
{ GL_ONE_MINUS_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, false }, // INV_SRC_COLOR
{ GL_SRC_ALPHA, GL_SRC_ALPHA, false }, // SRC_ALPHA
{ GL_ONE_MINUS_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, false }, // INV_SRC_ALPHA
{ GL_DST_ALPHA, GL_DST_ALPHA, false }, // DST_ALPHA
{ GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, false }, // INV_DST_ALPHA
{ GL_DST_COLOR, GL_DST_COLOR, false }, // DST_COLOR
{ GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_DST_COLOR, false }, // INV_DST_COLOR
{ GL_SRC_ALPHA_SATURATE, GL_ONE, false }, // SRC_ALPHA_SAT
{ GL_CONSTANT_COLOR, GL_CONSTANT_COLOR, true }, // FACTOR
{ GL_ONE_MINUS_CONSTANT_COLOR, GL_ONE_MINUS_CONSTANT_COLOR, true }, // INV_FACTOR
};
static const GLenum s_blendEquation[] =
{
GL_FUNC_ADD,
GL_FUNC_SUBTRACT,
GL_FUNC_REVERSE_SUBTRACT,
GL_MIN,
GL_MAX,
};
static const GLenum s_cmpFunc[] =
{
0, // ignored
GL_LESS,
GL_LEQUAL,
GL_EQUAL,
GL_GEQUAL,
GL_GREATER,
GL_NOTEQUAL,
GL_NEVER,
GL_ALWAYS,
};
static const GLenum s_stencilOp[] =
{
GL_ZERO,
GL_KEEP,
GL_REPLACE,
GL_INCR_WRAP,
GL_INCR,
GL_DECR_WRAP,
GL_DECR,
GL_INVERT,
};
static const GLenum s_stencilFace[] =
{
GL_FRONT_AND_BACK,
GL_FRONT,
GL_BACK,
};
static GLenum s_textureAddress[] =
{
GL_REPEAT,
GL_MIRRORED_REPEAT,
GL_CLAMP_TO_EDGE,
GL_CLAMP_TO_BORDER,
};
static const GLenum s_textureFilterMag[] =
{
GL_LINEAR,
GL_NEAREST,
GL_LINEAR,
};
static const GLenum s_textureFilterMin[][3] =
{
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
{ GL_NEAREST, GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST_MIPMAP_NEAREST },
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
};
struct TextureFormatInfo
{
GLenum m_internalFmt;
GLenum m_internalFmtSrgb;
GLenum m_fmt;
GLenum m_fmtSrgb;
GLenum m_type;
bool m_supported;
GLint m_mapping[4];
};
// In desktop OpenGL 4+ and OpenGL ES 3.0+, specific GL formats GL_x_INTEGER are used for integer textures.
// For older desktop OpenGL contexts, GL names without _INTEGER suffix were used.
// See http://docs.gl/gl4/glTexImage2D, http://docs.gl/gl3/glTexImage2D, http://docs.gl/es3/glTexImage2D
#if BGFX_CONFIG_RENDERER_OPENGL >= 40 || BGFX_CONFIG_RENDERER_OPENGLES
# define RED_INTEGER GL_RED_INTEGER
# define RG_INTEGER GL_RG_INTEGER
# define RGB_INTEGER GL_RGB_INTEGER
# define RGBA_INTEGER GL_RGBA_INTEGER
#else
# define RED_INTEGER GL_RED
# define RG_INTEGER GL_RG
# define RGB_INTEGER GL_RGB
# define RGBA_INTEGER GL_RGBA
#endif
static TextureFormatInfo s_textureFormat[] =
{
#define $_ -1
#define $0 GL_ZERO
#define $1 GL_ONE
#define $R GL_RED
#define $G GL_GREEN
#define $B GL_BLUE
#define $A GL_ALPHA
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC1
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC2
{ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC3
{ GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC4
{ GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC5
{ GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC6H
{ GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_ZERO, false, { $_, $_, $_, $_ } }, // BC7
{ GL_ETC1_RGB8_OES, GL_ZERO, GL_ETC1_RGB8_OES, GL_ETC1_RGB8_OES, GL_ZERO, false, { $_, $_, $_, $_ } }, // ETC1
{ GL_COMPRESSED_RGB8_ETC2, GL_ZERO, GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_ZERO, false, { $_, $_, $_, $_ } }, // ETC2
{ GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_ZERO, false, { $_, $_, $_, $_ } }, // ETC2A
{ GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_ZERO, false, { $_, $_, $_, $_ } }, // ETC2A1
{ GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC12
{ GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC14
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC12A
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC14A
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC22
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, false, { $_, $_, $_, $_ } }, // PTC24
{ GL_ATC_RGB_AMD, GL_ZERO, GL_ATC_RGB_AMD, GL_ATC_RGB_AMD, GL_ZERO, false, { $_, $_, $_, $_ } }, // ATC
{ GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, false, { $_, $_, $_, $_ } }, // ATCE
{ GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, false, { $_, $_, $_, $_ } }, // ATCI
{ GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_SRGB8_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC4x4
{ GL_COMPRESSED_RGBA_ASTC_5x4_KHR, GL_COMPRESSED_SRGB8_ASTC_5x4_KHR, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC5x4
{ GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_SRGB8_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC5x5
{ GL_COMPRESSED_RGBA_ASTC_6x5_KHR, GL_COMPRESSED_SRGB8_ASTC_6x5_KHR, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC6x5
{ GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_SRGB8_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC6x6
{ GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_COMPRESSED_SRGB8_ASTC_8x5_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC8x5
{ GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_SRGB8_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC8x6
{ GL_COMPRESSED_RGBA_ASTC_8x8_KHR, GL_COMPRESSED_SRGB8_ASTC_8x8_KHR, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC8x8
{ GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_SRGB8_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC10x5
{ GL_COMPRESSED_RGBA_ASTC_10x6_KHR, GL_COMPRESSED_SRGB8_ASTC_10x6_KHR, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC10x6
{ GL_COMPRESSED_RGBA_ASTC_10x8_KHR, GL_COMPRESSED_SRGB8_ASTC_10x8_KHR, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC10x8
{ GL_COMPRESSED_RGBA_ASTC_10x10_KHR, GL_COMPRESSED_SRGB8_ASTC_10x10_KHR, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC10x10
{ GL_COMPRESSED_RGBA_ASTC_12x10_KHR, GL_COMPRESSED_SRGB8_ASTC_12x10_KHR, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC12x10
{ GL_COMPRESSED_RGBA_ASTC_12x12_KHR, GL_COMPRESSED_SRGB8_ASTC_12x12_KHR, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, GL_ZERO, false, { $_, $_, $_, $_ } }, // ASTC12x12
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false, { $_, $_, $_, $_ } }, // Unknown
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false, { $_, $_, $_, $_ } }, // R1
{ GL_ALPHA, GL_ZERO, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // A8
{ GL_R8, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // R8
{ GL_R8I, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_BYTE, false, { $_, $_, $_, $_ } }, // R8I
{ GL_R8UI, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // R8U
{ GL_R8_SNORM, GL_ZERO, GL_RED, GL_RED, GL_BYTE, false, { $_, $_, $_, $_ } }, // R8S
{ GL_R16, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // R16
{ GL_R16I, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_SHORT, false, { $_, $_, $_, $_ } }, // R16I
{ GL_R16UI, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // R16U
{ GL_R16F, GL_ZERO, GL_RED, GL_RED, GL_HALF_FLOAT, false, { $_, $_, $_, $_ } }, // R16F
{ GL_R16_SNORM, GL_ZERO, GL_RED, GL_RED, GL_SHORT, false, { $_, $_, $_, $_ } }, // R16S
{ GL_R32I, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_INT, false, { $_, $_, $_, $_ } }, // R32I
{ GL_R32UI, GL_ZERO, RED_INTEGER, GL_RED_INTEGER, GL_UNSIGNED_INT, false, { $_, $_, $_, $_ } }, // R32U
{ GL_R32F, GL_ZERO, GL_RED, GL_RED, GL_FLOAT, false, { $_, $_, $_, $_ } }, // R32F
{ GL_RG8, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RG8
{ GL_RG8I, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_BYTE, false, { $_, $_, $_, $_ } }, // RG8I
{ GL_RG8UI, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RG8U
{ GL_RG8_SNORM, GL_ZERO, GL_RG, GL_RG, GL_BYTE, false, { $_, $_, $_, $_ } }, // RG8S
{ GL_RG16, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // RG16
{ GL_RG16I, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_SHORT, false, { $_, $_, $_, $_ } }, // RG16I
{ GL_RG16UI, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // RG16U
{ GL_RG16F, GL_ZERO, GL_RG, GL_RG, GL_HALF_FLOAT, false, { $_, $_, $_, $_ } }, // RG16F
{ GL_RG16_SNORM, GL_ZERO, GL_RG, GL_RG, GL_SHORT, false, { $_, $_, $_, $_ } }, // RG16S
{ GL_RG32I, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_INT, false, { $_, $_, $_, $_ } }, // RG32I
{ GL_RG32UI, GL_ZERO, RG_INTEGER, GL_RG_INTEGER, GL_UNSIGNED_INT, false, { $_, $_, $_, $_ } }, // RG32U
{ GL_RG32F, GL_ZERO, GL_RG, GL_RG, GL_FLOAT, false, { $_, $_, $_, $_ } }, // RG32F
{ GL_RGB8, GL_SRGB8, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RGB8
{ GL_RGB8I, GL_ZERO, RGB_INTEGER, GL_RGB_INTEGER, GL_BYTE, false, { $_, $_, $_, $_ } }, // RGB8I
{ GL_RGB8UI, GL_ZERO, RGB_INTEGER, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RGB8U
{ GL_RGB8_SNORM, GL_ZERO, GL_RGB, GL_RGB, GL_BYTE, false, { $_, $_, $_, $_ } }, // RGB8S
{ GL_RGB9_E5, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, false, { $_, $_, $_, $_ } }, // RGB9E5F
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_BGRA, GL_BGRA, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // BGRA8
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RGBA8
{ GL_RGBA8I, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_BYTE, false, { $_, $_, $_, $_ } }, // RGBA8I
{ GL_RGBA8UI, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // RGBA8U
{ GL_RGBA8_SNORM, GL_ZERO, GL_RGBA, GL_RGBA, GL_BYTE, false, { $_, $_, $_, $_ } }, // RGBA8S
{ GL_RGBA16, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // RGBA16
{ GL_RGBA16I, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_SHORT, false, { $_, $_, $_, $_ } }, // RGBA16I
{ GL_RGBA16UI, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // RGBA16U
{ GL_RGBA16F, GL_ZERO, GL_RGBA, GL_RGBA, GL_HALF_FLOAT, false, { $_, $_, $_, $_ } }, // RGBA16F
{ GL_RGBA16_SNORM, GL_ZERO, GL_RGBA, GL_RGBA, GL_SHORT, false, { $_, $_, $_, $_ } }, // RGBA16S
{ GL_RGBA32I, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_INT, false, { $_, $_, $_, $_ } }, // RGBA32I
{ GL_RGBA32UI, GL_ZERO, RGBA_INTEGER, GL_RGBA_INTEGER, GL_UNSIGNED_INT, false, { $_, $_, $_, $_ } }, // RGBA32U
{ GL_RGBA32F, GL_ZERO, GL_RGBA, GL_RGBA, GL_FLOAT, false, { $_, $_, $_, $_ } }, // RGBA32F
{ GL_RGB565, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, false, { $_, $_, $_, $_ } }, // B5G6R5
{ GL_RGB565, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, false, { $_, $_, $_, $_ } }, // R5G6B5
{ GL_RGBA4, GL_ZERO, GL_BGRA, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, false, { $_, $_, $_, $_ } }, // BGRA4
{ GL_RGBA4, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV, false, { $_, $_, $_, $_ } }, // RGBA4
{ GL_RGB5_A1, GL_ZERO, GL_BGRA, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, false, { $_, $_, $_, $_ } }, // BGR5A1
{ GL_RGB5_A1, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV, false, { $_, $_, $_, $_ } }, // RGB5A1
{ GL_RGB10_A2, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, false, { $_, $_, $_, $_ } }, // RGB10A2
{ GL_R11F_G11F_B10F, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, false, { $_, $_, $_, $_ } }, // RG11B10F
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false, { $_, $_, $_, $_ } }, // UnknownDepth
{ GL_DEPTH_COMPONENT16, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, false, { $_, $_, $_, $_ } }, // D16
{ GL_DEPTH_COMPONENT24, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false, { $_, $_, $_, $_ } }, // D24
{ GL_DEPTH24_STENCIL8, GL_ZERO, GL_DEPTH_STENCIL, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, false, { $_, $_, $_, $_ } }, // D24S8
{ GL_DEPTH_COMPONENT32, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false, { $_, $_, $_, $_ } }, // D32
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false, { $_, $_, $_, $_ } }, // D16F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false, { $_, $_, $_, $_ } }, // D24F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, false, { $_, $_, $_, $_ } }, // D32F
{ GL_STENCIL_INDEX8, GL_ZERO, GL_STENCIL_INDEX, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, false, { $_, $_, $_, $_ } }, // D0S8
#undef $_
#undef $0
#undef $1
#undef $R
#undef $G
#undef $B
#undef $A
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_textureFormat) );
static bool s_textureFilter[TextureFormat::Count+1];
static GLenum s_rboFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC8x8
GL_ZERO, // ASTC10x5
GL_ZERO, // ASTC10x6
GL_ZERO, // ASTC10x8
GL_ZERO, // ASTC10x10
GL_ZERO, // ASTC12x10
GL_ZERO, // ASTC12x12
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8U
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // B5G6R5
GL_RGB565, // R5G6B5
GL_RGBA4, // BGRA4
GL_RGBA4, // RGBA4
GL_RGB5_A1, // BGR5A1
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_DEPTH_COMPONENT16, // D16
GL_DEPTH_COMPONENT24, // D24
GL_DEPTH24_STENCIL8, // D24S8
GL_DEPTH_COMPONENT32, // D32
GL_DEPTH_COMPONENT32F, // D16F
GL_DEPTH_COMPONENT32F, // D24F
GL_DEPTH_COMPONENT32F, // D32F
GL_STENCIL_INDEX8, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_rboFormat) );
static GLenum s_imageFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC8x8
GL_ZERO, // ASTC10x5
GL_ZERO, // ASTC10x6
GL_ZERO, // ASTC10x8
GL_ZERO, // ASTC10x10
GL_ZERO, // ASTC12x10
GL_ZERO, // ASTC12x12
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8UI
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // B5G6R5
GL_RGB565, // R5G6B5
GL_RGBA4, // BGRA4
GL_RGBA4, // RGBA4
GL_RGB5_A1, // BGR5A1
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_ZERO, // D16
GL_ZERO, // D24
GL_ZERO, // D24S8
GL_ZERO, // D32
GL_ZERO, // D16F
GL_ZERO, // D24F
GL_ZERO, // D32F
GL_ZERO, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_imageFormat) );
struct Extension
{
enum Enum
{
AMD_conservative_depth,
AMD_multi_draw_indirect,
ANGLE_depth_texture,
ANGLE_framebuffer_blit,
ANGLE_framebuffer_multisample,
ANGLE_instanced_arrays,
ANGLE_texture_compression_dxt1,
ANGLE_texture_compression_dxt3,
ANGLE_texture_compression_dxt5,
ANGLE_timer_query,
ANGLE_translated_shader_source,
APPLE_texture_format_BGRA8888,
APPLE_texture_max_level,
ARB_clip_control,
ARB_compute_shader,
ARB_conservative_depth,
ARB_copy_image,
ARB_debug_label,
ARB_debug_output,
ARB_depth_buffer_float,
ARB_depth_clamp,
ARB_draw_buffers_blend,
ARB_draw_indirect,
ARB_draw_instanced,
ARB_ES3_compatibility,
ARB_framebuffer_object,
ARB_framebuffer_sRGB,
ARB_get_program_binary,
ARB_half_float_pixel,
ARB_half_float_vertex,
ARB_indirect_parameters,
ARB_instanced_arrays,
ARB_internalformat_query,
ARB_internalformat_query2,
ARB_invalidate_subdata,
ARB_map_buffer_range,
ARB_multi_draw_indirect,
ARB_multisample,
ARB_occlusion_query,
ARB_occlusion_query2,
ARB_program_interface_query,
ARB_provoking_vertex,
ARB_sampler_objects,
ARB_seamless_cube_map,
ARB_shader_bit_encoding,
ARB_shader_image_load_store,
ARB_shader_storage_buffer_object,
ARB_shader_texture_lod,
ARB_shader_viewport_layer_array,
ARB_texture_compression_bptc,
ARB_texture_compression_rgtc,
ARB_texture_cube_map_array,
ARB_texture_float,
ARB_texture_multisample,
ARB_texture_rg,
ARB_texture_rgb10_a2ui,
ARB_texture_stencil8,
ARB_texture_storage,
ARB_texture_swizzle,
ARB_timer_query,
ARB_uniform_buffer_object,
ARB_vertex_array_object,
ARB_vertex_type_2_10_10_10_rev,
ATI_meminfo,
CHROMIUM_color_buffer_float_rgb,
CHROMIUM_color_buffer_float_rgba,
CHROMIUM_depth_texture,
CHROMIUM_framebuffer_multisample,
CHROMIUM_texture_compression_dxt3,
CHROMIUM_texture_compression_dxt5,
EXT_bgra,
EXT_blend_color,
EXT_blend_minmax,
EXT_blend_subtract,
EXT_color_buffer_half_float,
EXT_color_buffer_float,
EXT_copy_image,
EXT_compressed_ETC1_RGB8_sub_texture,
EXT_debug_label,
EXT_debug_marker,
EXT_debug_tool,
EXT_discard_framebuffer,
EXT_disjoint_timer_query,
EXT_draw_buffers,
EXT_draw_instanced,
EXT_instanced_arrays,
EXT_frag_depth,
EXT_framebuffer_blit,
EXT_framebuffer_object,
EXT_framebuffer_sRGB,
EXT_gpu_shader4,
EXT_multi_draw_indirect,
EXT_occlusion_query_boolean,
EXT_packed_float,
EXT_read_format_bgra,
EXT_shader_image_load_store,
EXT_shader_texture_lod,
EXT_shadow_samplers,
EXT_sRGB_write_control,
EXT_texture_array,
EXT_texture_compression_dxt1,
EXT_texture_compression_latc,
EXT_texture_compression_rgtc,
EXT_texture_compression_s3tc,
EXT_texture_cube_map_array,
EXT_texture_filter_anisotropic,
EXT_texture_format_BGRA8888,
EXT_texture_rg,
EXT_texture_shared_exponent,
EXT_texture_snorm,
EXT_texture_sRGB,
EXT_texture_storage,
EXT_texture_swizzle,
EXT_texture_type_2_10_10_10_REV,
EXT_timer_query,
EXT_unpack_subimage,
EXT_sRGB,
EXT_multisampled_render_to_texture,
GOOGLE_depth_texture,
IMG_multisampled_render_to_texture,
IMG_read_format,
IMG_shader_binary,
IMG_texture_compression_pvrtc,
IMG_texture_compression_pvrtc2,
IMG_texture_format_BGRA8888,
INTEL_fragment_shader_ordering,
KHR_debug,
KHR_no_error,
MOZ_WEBGL_compressed_texture_s3tc,
MOZ_WEBGL_depth_texture,
NV_conservative_raster,
NV_copy_image,
NV_draw_buffers,
NV_draw_instanced,
NV_instanced_arrays,
NV_occlusion_query,
NV_texture_border_clamp,
NVX_gpu_memory_info,
OES_copy_image,
OES_compressed_ETC1_RGB8_texture,
OES_depth24,
OES_depth32,
OES_depth_texture,
OES_element_index_uint,
OES_fragment_precision_high,
OES_fbo_render_mipmap,
OES_get_program_binary,
OES_required_internalformat,
OES_packed_depth_stencil,
OES_read_format,
OES_rgb8_rgba8,
OES_standard_derivatives,
OES_texture_3D,
OES_texture_float,
OES_texture_float_linear,
OES_texture_npot,
OES_texture_half_float,
OES_texture_half_float_linear,
OES_texture_stencil8,
OES_texture_storage_multisample_2d_array,
OES_vertex_array_object,
OES_vertex_half_float,
OES_vertex_type_10_10_10_2,
WEBGL_color_buffer_float,
WEBGL_compressed_texture_etc1,
WEBGL_compressed_texture_s3tc,
WEBGL_compressed_texture_pvrtc,
WEBGL_depth_texture,
WEBGL_draw_buffers,
WEBKIT_EXT_texture_filter_anisotropic,
WEBKIT_WEBGL_compressed_texture_s3tc,
WEBKIT_WEBGL_depth_texture,
Count
};
const char* m_name;
bool m_supported;
bool m_initialize;
};
// Extension registry
//
// ANGLE:
// https://github.com/google/angle/tree/master/extensions
//
// CHROMIUM:
// https://chromium.googlesource.com/chromium/src.git/+/refs/heads/git-svn/gpu/GLES2/extensions/CHROMIUM
//
// EGL:
// https://www.khronos.org/registry/egl/extensions/
//
// GL:
// https://www.opengl.org/registry/
//
// GLES:
// https://www.khronos.org/registry/gles/extensions/
//
// WEBGL:
// https://www.khronos.org/registry/webgl/extensions/
//
static Extension s_extension[] =
{
{ "AMD_conservative_depth", false, true },
{ "AMD_multi_draw_indirect", false, true },
{ "ANGLE_depth_texture", false, true },
{ "ANGLE_framebuffer_blit", false, true },
{ "ANGLE_framebuffer_multisample", false, false },
{ "ANGLE_instanced_arrays", false, true },
{ "ANGLE_texture_compression_dxt1", false, true },
{ "ANGLE_texture_compression_dxt3", false, true },
{ "ANGLE_texture_compression_dxt5", false, true },
{ "ANGLE_timer_query", false, true },
{ "ANGLE_translated_shader_source", false, true },
{ "APPLE_texture_format_BGRA8888", false, true },
{ "APPLE_texture_max_level", false, true },
{ "ARB_clip_control", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_compute_shader", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_conservative_depth", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_copy_image", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_debug_label", false, true },
{ "ARB_debug_output", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_depth_buffer_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_depth_clamp", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_draw_buffers_blend", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_instanced", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_ES3_compatibility", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_get_program_binary", BGFX_CONFIG_RENDERER_OPENGL >= 41, true },
{ "ARB_half_float_pixel", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_half_float_vertex", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_indirect_parameters", BGFX_CONFIG_RENDERER_OPENGL >= 46, true },
{ "ARB_instanced_arrays", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_internalformat_query", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_internalformat_query2", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_invalidate_subdata", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_map_buffer_range", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_multi_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_multisample", false, true },
{ "ARB_occlusion_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_occlusion_query2", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_program_interface_query", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_provoking_vertex", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_sampler_objects", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_seamless_cube_map", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_shader_bit_encoding", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_shader_image_load_store", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_shader_storage_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_shader_texture_lod", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_shader_viewport_layer_array", false, true },
{ "ARB_texture_compression_bptc", BGFX_CONFIG_RENDERER_OPENGL >= 44, true },
{ "ARB_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_cube_map_array", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_texture_float", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_multisample", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_texture_rg", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_rgb10_a2ui", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_texture_stencil8", false, true },
{ "ARB_texture_storage", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_texture_swizzle", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_uniform_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "ARB_vertex_array_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_vertex_type_2_10_10_10_rev", false, true },
{ "ATI_meminfo", false, true },
{ "CHROMIUM_color_buffer_float_rgb", false, true },
{ "CHROMIUM_color_buffer_float_rgba", false, true },
{ "CHROMIUM_depth_texture", false, true },
{ "CHROMIUM_framebuffer_multisample", false, true },
{ "CHROMIUM_texture_compression_dxt3", false, true },
{ "CHROMIUM_texture_compression_dxt5", false, true },
{ "EXT_bgra", false, true },
{ "EXT_blend_color", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "EXT_blend_minmax", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_blend_subtract", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_color_buffer_half_float", false, true }, // GLES2 extension.
{ "EXT_color_buffer_float", false, true }, // GLES2 extension.
{ "EXT_copy_image", false, true }, // GLES2 extension.
{ "EXT_compressed_ETC1_RGB8_sub_texture", false, true }, // GLES2 extension.
{ "EXT_debug_label", false, true },
{ "EXT_debug_marker", false, true },
{ "EXT_debug_tool", false, true }, // RenderDoc extension.
{ "EXT_discard_framebuffer", false, true }, // GLES2 extension.
{ "EXT_disjoint_timer_query", false, true }, // GLES2 extension.
{ "EXT_draw_buffers", false, true }, // GLES2 extension.
{ "EXT_draw_instanced", false, true }, // GLES2 extension.
{ "EXT_instanced_arrays", false, true }, // GLES2 extension.
{ "EXT_frag_depth", false, true }, // GLES2 extension.
{ "EXT_framebuffer_blit", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_gpu_shader4", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "EXT_multi_draw_indirect", false, true }, // GLES3.1 extension.
{ "EXT_occlusion_query_boolean", false, true }, // GLES2 extension.
{ "EXT_packed_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_read_format_bgra", false, true },
{ "EXT_shader_image_load_store", false, true },
{ "EXT_shader_texture_lod", false, true }, // GLES2 extension.
{ "EXT_shadow_samplers", false, true },
{ "EXT_sRGB_write_control", false, true }, // GLES2 extension.
{ "EXT_texture_array", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_dxt1", false, true },
{ "EXT_texture_compression_latc", false, true },
{ "EXT_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_s3tc", false, true },
{ "EXT_texture_cube_map_array", false, true }, // GLES3.1 extension.
{ "EXT_texture_filter_anisotropic", false, true },
{ "EXT_texture_format_BGRA8888", false, true },
{ "EXT_texture_rg", false, true }, // GLES2 extension.
{ "EXT_texture_shared_exponent", false, true },
{ "EXT_texture_snorm", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_sRGB", false, true },
{ "EXT_texture_storage", false, true },
{ "EXT_texture_swizzle", false, true },
{ "EXT_texture_type_2_10_10_10_REV", false, true },
{ "EXT_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_unpack_subimage", false, true },
{ "EXT_sRGB", false, true }, // GLES2 extension.
{ "EXT_multisampled_render_to_texture", false, true }, // GLES2 extension.
{ "GOOGLE_depth_texture", false, true },
{ "IMG_multisampled_render_to_texture", false, true },
{ "IMG_read_format", false, true },
{ "IMG_shader_binary", false, true },
{ "IMG_texture_compression_pvrtc", false, true },
{ "IMG_texture_compression_pvrtc2", false, true },
{ "IMG_texture_format_BGRA8888", false, true },
{ "INTEL_fragment_shader_ordering", false, true },
{ "KHR_debug", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "KHR_no_error", false, true },
{ "MOZ_WEBGL_compressed_texture_s3tc", false, true },
{ "MOZ_WEBGL_depth_texture", false, true },
{ "NV_conservative_raster", false, true },
{ "NV_copy_image", false, true },
{ "NV_draw_buffers", false, true }, // GLES2 extension.
{ "NV_draw_instanced", false, true }, // GLES2 extension.
{ "NV_instanced_arrays", false, true }, // GLES2 extension.
{ "NV_occlusion_query", false, true },
{ "NV_texture_border_clamp", false, true }, // GLES2 extension.
{ "NVX_gpu_memory_info", false, true },
{ "OES_copy_image", false, true },
{ "OES_compressed_ETC1_RGB8_texture", false, true },
{ "OES_depth24", false, true },
{ "OES_depth32", false, true },
{ "OES_depth_texture", false, true },
{ "OES_element_index_uint", false, true },
{ "OES_fragment_precision_high", false, true },
{ "OES_fbo_render_mipmap", false, true },
{ "OES_get_program_binary", false, true },
{ "OES_required_internalformat", false, true },
{ "OES_packed_depth_stencil", false, true },
{ "OES_read_format", false, true },
{ "OES_rgb8_rgba8", false, true },
{ "OES_standard_derivatives", false, true },
{ "OES_texture_3D", false, true },
{ "OES_texture_float", false, true },
{ "OES_texture_float_linear", false, true },
{ "OES_texture_npot", false, true },
{ "OES_texture_half_float", false, true },
{ "OES_texture_half_float_linear", false, true },
{ "OES_texture_stencil8", false, true },
{ "OES_texture_storage_multisample_2d_array", false, true },
{ "OES_vertex_array_object", false, true },
{ "OES_vertex_half_float", false, true },
{ "OES_vertex_type_10_10_10_2", false, true },
{ "WEBGL_color_buffer_float", false, true },
{ "WEBGL_compressed_texture_etc1", false, true },
{ "WEBGL_compressed_texture_s3tc", false, true },
{ "WEBGL_compressed_texture_pvrtc", false, true },
{ "WEBGL_depth_texture", false, true },
{ "WEBGL_draw_buffers", false, true },
{ "WEBKIT_EXT_texture_filter_anisotropic", false, true },
{ "WEBKIT_WEBGL_compressed_texture_s3tc", false, true },
{ "WEBKIT_WEBGL_depth_texture", false, true },
};
BX_STATIC_ASSERT(Extension::Count == BX_COUNTOF(s_extension) );
static const char* s_ARB_shader_texture_lod[] =
{
"texture2DLod",
"texture2DArrayLod", // BK - interacts with ARB_texture_array.
"texture2DProjLod",
"texture2DGrad",
"texture2DProjGrad",
"texture3DLod",
"texture3DProjLod",
"texture3DGrad",
"texture3DProjGrad",
"textureCubeLod",
"textureCubeGrad",
"shadow2DLod",
"shadow2DProjLod",
NULL
// "texture1DLod",
// "texture1DProjLod",
// "shadow1DLod",
// "shadow1DProjLod",
};
static const char* s_EXT_shader_texture_lod[] =
{
"texture2DLod",
"texture2DProjLod",
"textureCubeLod",
"texture2DGrad",
"texture2DProjGrad",
"textureCubeGrad",
NULL
};
static const char* s_ARB_shader_viewport_layer_array[] =
{
"gl_ViewportIndex",
"gl_Layer",
NULL
};
static const char* s_EXT_shadow_samplers[] =
{
"shadow2D",
"shadow2DProj",
NULL
};
static const char* s_OES_standard_derivatives[] =
{
"dFdx",
"dFdy",
"fwidth",
NULL
};
static const char* s_uisamplers[] =
{
"isampler2D",
"usampler2D",
"isampler3D",