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Added support for LATC/3DC texture compression.

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bkaradzic
2013-01-20 12:47:29 -08:00
parent 6eed7bdccb
commit c26f8f4718
15 changed files with 154 additions and 74 deletions
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50
src/renderer_gl.cpp
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@@ -22,6 +22,7 @@ namespace bgfx
EXT_texture_compression_dxt1,
CHROMIUM_texture_compression_dxt3,
CHROMIUM_texture_compression_dxt5,
EXT_texture_compression_latc,
ARB_texture_float,
OES_texture_float,
OES_texture_float_linear,
@@ -70,6 +71,7 @@ namespace bgfx
{ "GL_EXT_texture_compression_dxt1", false, true },
{ "GL_CHROMIUM_texture_compression_dxt3", false, true },
{ "GL_CHROMIUM_texture_compression_dxt5", false, true },
{ "GL_EXT_texture_compression_latc", false, true },
{ "GL_ARB_texture_float", false, true },
{ "GL_OES_texture_float", false, true },
{ "GL_OES_texture_float_linear", false, true },
@@ -152,7 +154,6 @@ namespace bgfx
: m_capture(NULL)
, m_captureSize(0)
, m_maxAnisotropy(0.0f)
, m_dxtSupport(false)
, m_vaoSupport(false)
, m_programBinarySupport(false)
, m_textureSwizzleSupport(false)
@@ -328,7 +329,6 @@ namespace bgfx
void* m_capture;
uint32_t m_captureSize;
float m_maxAnisotropy;
bool m_dxtSupport;
bool m_vaoSupport;
bool m_programBinarySupport;
bool m_textureSwizzleSupport;
@@ -521,26 +521,29 @@ namespace bgfx
GLenum m_fmt;
GLenum m_type;
uint8_t m_bpp;
bool m_supported;
};
static TextureFormatInfo s_textureFormat[TextureFormat::Count] =
{
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, 4 },
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, 4 },
{ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_ZERO, 4 },
{ GL_ZERO, GL_ZERO, GL_ZERO, 0 },
{ GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, 8 },
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 32 },
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 32 },
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, 4, false },
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, 4, false },
{ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_ZERO, 4, false },
{ GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, 4, false },
{ GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, 4, false },
{ GL_ZERO, GL_ZERO, GL_ZERO, 0, true },
{ GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, 8, true },
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 32, true },
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 32, true },
#if BGFX_CONFIG_RENDERER_OPENGL
{ GL_RGBA16, GL_RGBA, GL_HALF_FLOAT, 64 },
{ GL_RGBA16, GL_RGBA, GL_HALF_FLOAT, 64, true },
#else
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 64 },
{ GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 64, true },
#endif // BGFX_CONFIG_RENDERER_OPENGL
{ GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 16 },
{ GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 16 },
{ GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 16 },
{ GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, 32 },
{ GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 16, true },
{ GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 16, true },
{ GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 16, true },
{ GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, 32, true },
};
const char* glslTypeName(GLuint _type)
@@ -1019,7 +1022,7 @@ namespace bgfx
target = GL_TEXTURE_CUBE_MAP_POSITIVE_X;
}
if (!s_renderCtx.m_dxtSupport
if (!tfi.m_supported
|| TextureFormat::Unknown < dds.m_type)
{
bool decompress = TextureFormat::Unknown > dds.m_type;
@@ -1790,15 +1793,14 @@ namespace bgfx
}
}
s_renderCtx.m_dxtSupport = true
&& s_extension[Extension::EXT_texture_compression_dxt1].m_supported
&& s_extension[Extension::CHROMIUM_texture_compression_dxt3].m_supported
&& s_extension[Extension::CHROMIUM_texture_compression_dxt5].m_supported
;
bool dxtSupported = s_extension[Extension::EXT_texture_compression_s3tc].m_supported;
s_textureFormat[TextureFormat::BC1].m_supported = dxtSupported || s_extension[Extension::EXT_texture_compression_dxt1].m_supported;
s_textureFormat[TextureFormat::BC2].m_supported = dxtSupported || s_extension[Extension::CHROMIUM_texture_compression_dxt3].m_supported;
s_textureFormat[TextureFormat::BC3].m_supported = dxtSupported || s_extension[Extension::CHROMIUM_texture_compression_dxt5].m_supported;
s_renderCtx.m_dxtSupport |=
s_extension[Extension::EXT_texture_compression_s3tc].m_supported
;
bool latcSupported = s_extension[Extension::EXT_texture_compression_latc].m_supported;
s_textureFormat[TextureFormat::BC4].m_supported = latcSupported;
s_textureFormat[TextureFormat::BC5].m_supported = latcSupported;
s_renderCtx.m_vaoSupport = !!BGFX_CONFIG_RENDERER_OPENGLES3
|| s_extension[Extension::ARB_vertex_array_object].m_supported