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Fix OpenGL ES texture formats and remove runtime texture probing on WebGL.

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This commit is contained in:
Jukka Jylänki
2020-03-04 13:44:38 +02:00
committed by Бранимир Караџић
parent e495c613a5
commit 43bd07f825
2 changed files with 251 additions and 28 deletions
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275
src/renderer_gl.cpp
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@@ -10,6 +10,10 @@
# include <bx/timer.h>
# include <bx/uint32_t.h>
#if BX_PLATFORM_EMSCRIPTEN
# include <emscripten/html5.h>
#endif
namespace bgfx { namespace gl
{
static char s_viewName[BGFX_CONFIG_MAX_VIEWS][BGFX_CONFIG_MAX_VIEW_NAME];
@@ -222,46 +226,46 @@ namespace bgfx { namespace gl
{ 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, GL_RED, GL_RED, GL_BYTE, false }, // R8I
{ GL_R8UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_BYTE, false }, // R8U
{ GL_R8I, GL_ZERO, GL_RED_INTEGER, GL_RED_INTEGER, GL_BYTE, false }, // R8I
{ GL_R8UI, GL_ZERO, GL_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, GL_RED, GL_RED, GL_SHORT, false }, // R16I
{ GL_R16UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_SHORT, false }, // R16U
{ GL_R16I, GL_ZERO, GL_RED_INTEGER, GL_RED_INTEGER, GL_SHORT, false }, // R16I
{ GL_R16UI, GL_ZERO, GL_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, GL_RED, GL_RED, GL_INT, false }, // R32I
{ GL_R32UI, GL_ZERO, GL_RED, GL_RED, GL_UNSIGNED_INT, false }, // R32U
{ GL_R32I, GL_ZERO, GL_RED_INTEGER, GL_RED_INTEGER, GL_INT, false }, // R32I
{ GL_R32UI, GL_ZERO, GL_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, GL_RG, GL_RG, GL_BYTE, false }, // RG8I
{ GL_RG8UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_BYTE, false }, // RG8U
{ GL_RG8I, GL_ZERO, GL_RG_INTEGER, GL_RG_INTEGER, GL_BYTE, false }, // RG8I
{ GL_RG8UI, GL_ZERO, GL_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, GL_RG, GL_RG, GL_SHORT, false }, // RG16I
{ GL_RG16UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_SHORT, false }, // RG16U
{ GL_RG16I, GL_ZERO, GL_RG_INTEGER, GL_RG_INTEGER, GL_SHORT, false }, // RG16I
{ GL_RG16UI, GL_ZERO, GL_RG_INTEGER, GL_RG_INTEGER, GL_UNSIGNED_SHORT, false }, // RG16U
{ GL_RG16F, GL_ZERO, GL_RG, GL_RG, GL_FLOAT, false }, // RG16F
{ GL_RG16_SNORM, GL_ZERO, GL_RG, GL_RG, GL_SHORT, false }, // RG16S
{ GL_RG32I, GL_ZERO, GL_RG, GL_RG, GL_INT, false }, // RG32I
{ GL_RG32UI, GL_ZERO, GL_RG, GL_RG, GL_UNSIGNED_INT, false }, // RG32U
{ GL_RG32I, GL_ZERO, GL_RG_INTEGER, GL_RG_INTEGER, GL_INT, false }, // RG32I
{ GL_RG32UI, GL_ZERO, GL_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, GL_RGB, GL_RGB, GL_BYTE, false }, // RGB8I
{ GL_RGB8UI, GL_ZERO, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE, false }, // RGB8U
{ GL_RGB8I, GL_ZERO, GL_RGB_INTEGER, GL_RGB_INTEGER, GL_BYTE, false }, // RGB8I
{ GL_RGB8UI, GL_ZERO, GL_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, GL_RGBA, GL_RGBA, GL_BYTE, false }, // RGBA8I
{ GL_RGBA8UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, false }, // RGBA8U
{ GL_RGBA8I, GL_ZERO, GL_RGBA_INTEGER, GL_RGBA_INTEGER, GL_BYTE, false }, // RGBA8I
{ GL_RGBA8UI, GL_ZERO, GL_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, GL_RGBA, GL_RGBA, GL_SHORT, false }, // RGBA16I
{ GL_RGBA16UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT, false }, // RGBA16U
{ GL_RGBA16I, GL_ZERO, GL_RGBA_INTEGER, GL_RGBA_INTEGER, GL_SHORT, false }, // RGBA16I
{ GL_RGBA16UI, GL_ZERO, GL_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, GL_RGBA, GL_RGBA, GL_INT, false }, // RGBA32I
{ GL_RGBA32UI, GL_ZERO, GL_RGBA, GL_RGBA, GL_UNSIGNED_INT, false }, // RGBA32U
{ GL_RGBA32I, GL_ZERO, GL_RGBA_INTEGER, GL_RGBA_INTEGER, GL_INT, false }, // RGBA32I
{ GL_RGBA32UI, GL_ZERO, GL_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 }, // R5G6B5
{ GL_RGBA4, GL_ZERO, GL_BGRA, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, false }, // RGBA4
@@ -1568,6 +1572,107 @@ namespace bgfx { namespace gl
return err;
}
#if BX_PLATFORM_EMSCRIPTEN
static bool isTextureFormatValidPerSpec(
TextureFormat::Enum _format
, bool _srgb = false
, bool _mipAutogen = false
, bool _array = false
, GLsizei _dim = 16
)
{
// Avoid creating test textures for WebGL, that causes error noise in the browser console; instead examine the supported texture formats from the spec.
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE ctx = emscripten_webgl_get_current_context();
EmscriptenWebGLContextAttributes attrs;
emscripten_webgl_get_context_attributes(ctx, &attrs);
int glesVersion = attrs.majorVersion + 1;
switch(_format)
{
case TextureFormat::A8:
case TextureFormat::R8: // Luminance
case TextureFormat::R5G6B5:
case TextureFormat::RGBA4:
case TextureFormat::RGB5A1:
return !_srgb; // GLES2 formats without sRGB.
case TextureFormat::D16:
return !_srgb && !_mipAutogen; // GLES2 formats without sRGB, depth textures do not support mipmaps.
case TextureFormat::R16F:
case TextureFormat::R32F:
case TextureFormat::RG8:
case TextureFormat::RG16F:
case TextureFormat::RG32F:
case TextureFormat::RGB10A2:
case TextureFormat::RG11B10F:
return !_srgb && glesVersion >= 3; // GLES3 formats without sRGB
case TextureFormat::R8I:
case TextureFormat::R8U:
case TextureFormat::R16I:
case TextureFormat::R16U:
case TextureFormat::R32I:
case TextureFormat::R32U:
case TextureFormat::RG8I:
case TextureFormat::RG8U:
case TextureFormat::RG16I:
case TextureFormat::RG16U:
case TextureFormat::RG32I:
case TextureFormat::RG32U:
case TextureFormat::RGB8I:
case TextureFormat::RGB8U:
case TextureFormat::RGBA8I:
case TextureFormat::RGBA8U:
case TextureFormat::RGBA16I:
case TextureFormat::RGBA16U:
case TextureFormat::RGBA32I:
case TextureFormat::RGBA32U:
case TextureFormat::D32F:
case TextureFormat::R8S:
case TextureFormat::RG8S:
case TextureFormat::RGB8S:
case TextureFormat::RGBA8S:
case TextureFormat::RGB9E5F:
return !_srgb && glesVersion >= 3 && !_mipAutogen; // GLES3 formats without sRGB that are not texture filterable or color renderable.
case TextureFormat::D24:
case TextureFormat::D24S8:
case TextureFormat::D32:
return !_srgb && !_mipAutogen && (glesVersion >= 3 || emscripten_webgl_enable_extension(ctx, "WEBGL_depth_texture")); // GLES3 formats without sRGB, depth textures do not support mipmaps.
case TextureFormat::D16F:
case TextureFormat::D24F:
return !_srgb && !_mipAutogen && glesVersion >= 3; // GLES3 depth formats without sRGB, depth textures do not support mipmaps.
case TextureFormat::RGBA16F:
case TextureFormat::RGBA32F:
return !_srgb && (glesVersion >= 3 || emscripten_webgl_enable_extension(ctx, "OES_texture_half_float")); // GLES3 formats without sRGB
case TextureFormat::RGB8:
case TextureFormat::RGBA8:
return !_srgb || glesVersion >= 3 || emscripten_webgl_enable_extension(ctx, "EXT_sRGB"); // sRGB formats
case TextureFormat::BC1:
case TextureFormat::BC2:
case TextureFormat::BC3:
return emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_s3tc")
&& (!_srgb || emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_s3tc_srgb"));
case TextureFormat::PTC12:
case TextureFormat::PTC14:
case TextureFormat::PTC12A:
case TextureFormat::PTC14A:
return !_srgb && emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_pvrtc");
case TextureFormat::ETC1:
return !_srgb && emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_etc1");
case TextureFormat::ETC2:
case TextureFormat::ETC2A:
case TextureFormat::ETC2A1:
return emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_etc");
case TextureFormat::ASTC4x4:
case TextureFormat::ASTC5x5:
case TextureFormat::ASTC6x6:
case TextureFormat::ASTC8x5:
case TextureFormat::ASTC8x6:
case TextureFormat::ASTC10x5:
return emscripten_webgl_enable_extension(ctx, "WEBGL_compressed_texture_astc");
default:
return false;
}
}
#endif
static bool isTextureFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
@@ -1576,6 +1681,12 @@ namespace bgfx { namespace gl
, GLsizei _dim = 16
)
{
#if BX_PLATFORM_EMSCRIPTEN
// On web platform read the validity of textures based on the available GL context and extensions
// to avoid developer unfriendly console error noise that would come from probing.
return isTextureFormatValidPerSpec(_format, _srgb, _mipAutogen, _array, _dim);
#else
// On other platforms probe the supported textures.
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
@@ -1631,6 +1742,7 @@ namespace bgfx { namespace gl
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
#endif
}
static bool isImageFormatValid(TextureFormat::Enum _format, GLsizei _dim = 16)
@@ -1667,6 +1779,91 @@ namespace bgfx { namespace gl
return 0 == err;
}
#if BX_PLATFORM_EMSCRIPTEN
static bool isFramebufferFormatValidPerSpec(
TextureFormat::Enum _format
, bool _srgb = false
, bool _writeOnly = false
, GLsizei _dim = 16
)
{
// Avoid creating test textures for WebGL, that causes error noise in the browser console; instead examine the supported texture formats from the spec.
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE ctx = emscripten_webgl_get_current_context();
EmscriptenWebGLContextAttributes attrs;
emscripten_webgl_get_context_attributes(ctx, &attrs);
int glesVersion = attrs.majorVersion + 1;
switch(_format)
{
// GLES2 textures
case TextureFormat::R5G6B5:
case TextureFormat::RGBA4:
case TextureFormat::RGB5A1:
case TextureFormat::D16:
return !_srgb;
// GLES2 renderbuffers not a texture in GLES3
case TextureFormat::D0S8:
return !_srgb && _writeOnly;
// GLES2 textures that are not renderbuffers
case TextureFormat::RGB8:
case TextureFormat::RGBA8:
return !_srgb && (!_writeOnly || glesVersion >= 3);
// GLES3 EXT_color_buffer_float renderbuffer formats
case TextureFormat::R16F:
case TextureFormat::RG16F:
case TextureFormat::R32F:
case TextureFormat::RG32F:
case TextureFormat::RG11B10F:
if (_writeOnly)
return emscripten_webgl_enable_extension(ctx, "EXT_color_buffer_float");
else
return !_srgb && glesVersion >= 3;
// GLES2 float extension:
case TextureFormat::RGBA16F:
if (_writeOnly && emscripten_webgl_enable_extension(ctx, "EXT_color_buffer_half_float"))
return true;
case TextureFormat::RGBA32F:
if (_writeOnly)
return emscripten_webgl_enable_extension(ctx, "EXT_color_buffer_float") || emscripten_webgl_enable_extension(ctx, "WEBGL_color_buffer_float");
return !_srgb && (glesVersion >= 3 || emscripten_webgl_enable_extension(ctx, "OES_texture_half_float")); // GLES3 formats without sRGB
case TextureFormat::D24:
case TextureFormat::D24S8:
return !_srgb && (glesVersion >= 3 || (!_writeOnly && emscripten_webgl_enable_extension(ctx, "WEBGL_depth_texture"))); // GLES3 formats without sRGB, depth textures do not support mipmaps.
case TextureFormat::D32:
return !_srgb && !_writeOnly && (glesVersion >= 3 || emscripten_webgl_enable_extension(ctx, "WEBGL_depth_texture")); // GLES3 formats without sRGB, depth textures do not support mipmaps.
// GLES3 textures
case TextureFormat::R8:
case TextureFormat::RG8:
case TextureFormat::R8I:
case TextureFormat::R8U:
case TextureFormat::R16I:
case TextureFormat::R16U:
case TextureFormat::R32I:
case TextureFormat::R32U:
case TextureFormat::RG8I:
case TextureFormat::RG8U:
case TextureFormat::RGBA8I:
case TextureFormat::RGBA8U:
case TextureFormat::RG16I:
case TextureFormat::RG16U:
case TextureFormat::RG32I:
case TextureFormat::RG32U:
case TextureFormat::RGBA16I:
case TextureFormat::RGBA16U:
case TextureFormat::RGBA32I:
case TextureFormat::RGBA32U:
case TextureFormat::RGB10A2:
case TextureFormat::D16F:
case TextureFormat::D24F:
case TextureFormat::D32F:
return !_srgb && glesVersion >= 3;
case TextureFormat::BGRA8:
return !_srgb && _writeOnly && glesVersion >= 3;
default:
return false;
}
}
#endif
static bool isFramebufferFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
@@ -1674,6 +1871,12 @@ namespace bgfx { namespace gl
, GLsizei _dim = 16
)
{
#if BX_PLATFORM_EMSCRIPTEN
// On web platform read the validity of framebuffers based on the available GL context and extensions
// to avoid developer unfriendly console error noise that would come from probing.
return isFramebufferFormatValidPerSpec(_format, _srgb, _writeOnly, _dim);
#else
// On other platforms probe the supported textures.
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
@@ -1753,6 +1956,7 @@ namespace bgfx { namespace gl
GL_CHECK(glDeleteTextures(1, &id) );
return GL_FRAMEBUFFER_COMPLETE == err;
#endif
}
static void getFilters(uint32_t _flags, bool _hasMips, GLenum& _magFilter, GLenum& _minFilter)
@@ -2130,9 +2334,9 @@ namespace bgfx { namespace gl
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES) )
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
if (glVersion < 30)
{
setTextureFormat(TextureFormat::RGBA16F, GL_RGBA, GL_RGBA, GL_HALF_FLOAT);
setTextureFormat(TextureFormat::RGBA16F, GL_RGBA, GL_RGBA, GL_HALF_FLOAT_OES);
setTextureFormat(TextureFormat::RGBA32F, GL_RGBA, GL_RGBA, GL_FLOAT);
// internalFormat and format must match:
// https://www.khronos.org/opengles/sdk/docs/man/xhtml/glTexImage2D.xml
@@ -2164,6 +2368,12 @@ namespace bgfx { namespace gl
s_textureFilter[TextureFormat::RGBA32F] = linear32F;
}
}
else
{
setTextureFormat(TextureFormat::R16F, GL_R16F, GL_RED, 0x140B /* == GL_HALF_FLOAT, but bgfx overwrites it globally with GL_HALF_FLOAT_OES */);
setTextureFormat(TextureFormat::RG16F, GL_RG16F, GL_RG, 0x140B /* == GL_HALF_FLOAT, but bgfx overwrites it globally with GL_HALF_FLOAT_OES */);
setTextureFormat(TextureFormat::RGBA16F, GL_RGBA16F, GL_RGBA, 0x140B /* == GL_HALF_FLOAT, but bgfx overwrites it globally with GL_HALF_FLOAT_OES */);
}
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (s_extension[Extension::WEBGL_depth_texture].m_supported
@@ -2240,14 +2450,23 @@ namespace bgfx { namespace gl
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
{
setTextureFormat(TextureFormat::RGBA4, GL_ZERO, GL_ZERO, GL_ZERO);
setTextureFormat(TextureFormat::RGB5A1, GL_ZERO, GL_ZERO, GL_ZERO);
// OpenGL ES does not have reversed BGRA4 and BGR5A1 support.
setTextureFormat(TextureFormat::RGBA4, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4);
setTextureFormat(TextureFormat::RGB5A1, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1);
setTextureFormat(TextureFormat::R5G6B5, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5);
if (!isTextureFormatValid(TextureFormat::R8) )
if (glVersion < 30)
{
// GL core has to use GL_R8 Issue#208, GLES2 has to use GL_LUMINANCE issue#226
s_textureFormat[TextureFormat::R8].m_internalFmt = GL_LUMINANCE;
s_textureFormat[TextureFormat::R8].m_fmt = GL_LUMINANCE;
// OpenGL ES 2.0 uses unsized internal formats.
s_textureFormat[TextureFormat::RGB8].m_internalFmt = GL_RGB;
// OpenGL ES 2.0 does not have R8 texture format, only L8. Open GL ES 2.0 extension https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_texture_rg.txt
// adds support for R8 to GLES 2.0 core contexts. For those use L8 instead.
if (!s_extension[Extension::EXT_texture_rg].m_supported)
{
s_textureFormat[TextureFormat::R8].m_internalFmt = GL_LUMINANCE;
s_textureFormat[TextureFormat::R8].m_fmt = GL_LUMINANCE;
}
}
}

4
src/renderer_gl.h
View File

@@ -339,6 +339,10 @@ typedef uint64_t GLuint64;
# define GL_BLUE 0x1905
#endif // GL_BLUE
#ifndef GL_RGB_INTEGER
# define GL_RGB_INTEGER 0x8D98
#endif // GL_RGB_INTEGER
#ifndef GL_RGBA_INTEGER
# define GL_RGBA_INTEGER 0x8D99
#endif // GL_RGBA_INTEGER