diff options
Diffstat (limited to 'third_party/ktx/ktx.cpp')
| -rw-r--r-- | third_party/ktx/ktx.cpp | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/third_party/ktx/ktx.cpp b/third_party/ktx/ktx.cpp index a05498b7e8..ebcc5eb187 100644 --- a/third_party/ktx/ktx.cpp +++ b/third_party/ktx/ktx.cpp @@ -12,9 +12,27 @@ #include "SkEndian.h" #include "gl/GrGLDefines.h" +#include "GrConfig.h" #include "etc1.h" +static inline uint32_t compressed_fmt_to_gl_define(SkTextureCompressor::Format fmt) { + static const uint32_t kGLDefineMap[SkTextureCompressor::kFormatCnt] = { + GR_GL_COMPRESSED_LUMINANCE_LATC1, // kLATC_Format + GR_GL_COMPRESSED_R11, // kR11_EAC_Format + GR_GL_COMPRESSED_RGB8_ETC1, // kETC1_Format + GR_GL_COMPRESSED_RGBA_ASTC_12x12, // kASTC_12x12_Format + }; + + GR_STATIC_ASSERT(0 == SkTextureCompressor::kLATC_Format); + GR_STATIC_ASSERT(1 == SkTextureCompressor::kR11_EAC_Format); + GR_STATIC_ASSERT(2 == SkTextureCompressor::kETC1_Format); + GR_STATIC_ASSERT(3 == SkTextureCompressor::kASTC_12x12_Format); + GR_STATIC_ASSERT(SK_ARRAY_COUNT(kGLDefineMap) == SkTextureCompressor::kFormatCnt); + + return kGLDefineMap[fmt]; +} + #define KTX_FILE_IDENTIFIER_SIZE 12 static const uint8_t KTX_FILE_IDENTIFIER[KTX_FILE_IDENTIFIER_SIZE] = { 0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A @@ -123,8 +141,19 @@ SkString SkKTXFile::getValueForKey(const SkString& key) const { return SkString(); } -bool SkKTXFile::isETC1() const { - return this->valid() && GR_GL_COMPRESSED_RGB8_ETC1 == fHeader.fGLInternalFormat; +bool SkKTXFile::isCompressedFormat(SkTextureCompressor::Format fmt) const { + if (!this->valid()) { + return false; + } + + // This has many aliases + bool isFmt = false; + if (fmt == SkTextureCompressor::kLATC_Format) { + isFmt = GR_GL_COMPRESSED_RED_RGTC1 == fHeader.fGLInternalFormat || + GR_GL_COMPRESSED_3DC_X == fHeader.fGLInternalFormat; + } + + return isFmt || compressed_fmt_to_gl_define(fmt) == fHeader.fGLInternalFormat; } bool SkKTXFile::isRGBA8() const { |