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shaderc: Added GLES2 fallback for transpose.

This commit is contained in:
Branimir Karadžić 2018-03-16 22:41:51 -07:00
parent 52a5f630fd
commit 9f0a889cca
1 changed files with 43 additions and 0 deletions
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43
tools/shaderc/shaderc.cpp
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@ -1977,6 +1977,49 @@ namespace bgfx
, 'f' == _options.shaderType ? "in" : "out"
);
}
else if (essl == 2)
{
code +=
"mat2 transpose(mat2 _mtx)\n"
"{\n"
" vec2 v0 = _mtx[0];\n"
" vec2 v1 = _mtx[1];\n"
"\n"
" return mat2(\n"
" vec2(v0.x, v1.x)\n"
" , vec2(v0.y, v1.y)\n"
" );\n"
"}\n"
"\n"
"mat3 transpose(mat3 _mtx)\n"
"{\n"
" vec3 v0 = _mtx[0];\n"
" vec3 v1 = _mtx[1];\n"
" vec3 v2 = _mtx[2];\n"
"\n"
" return mat3(\n"
" vec3(v0.x, v1.x, v2.x)\n"
" , vec3(v0.y, v1.y, v2.y)\n"
" , vec3(v0.z, v1.z, v2.z)\n"
" );\n"
"}\n"
"\n"
"mat4 transpose(mat4 _mtx)\n"
"{\n"
" vec4 v0 = _mtx[0];\n"
" vec4 v1 = _mtx[1];\n"
" vec4 v2 = _mtx[2];\n"
" vec4 v3 = _mtx[3];\n"
"\n"
" return mat4(\n"
" vec4(v0.x, v1.x, v2.x, v3.x)\n"
" , vec4(v0.y, v1.y, v2.y, v3.y)\n"
" , vec4(v0.z, v1.z, v2.z, v3.z)\n"
" , vec4(v0.w, v1.w, v2.w, v3.w)\n"
" );\n"
"}\n"
;
}
// Pretend that all extensions are available.
// This will be stripped later.