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SPIRV: Add support for texelFetch

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There's nothing really special about texelFetch other than the opcode and
some restrictions so adding it is pretty trivial.
This commit is contained in:
Jason Ekstrand 2015-09-05 14:14:48 -07:00
parent d6c37b190b
commit 18b9fbd742
3 changed files with 6 additions and 6 deletions
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6
SPIRV/SpvBuilder.cpp
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@ -1137,7 +1137,7 @@ Id Builder::createBuiltinCall(Decoration /*precision*/, Id resultType, Id builti
// Accept all parameters needed to create a texture instruction.
// Create the correct instruction based on the inputs, and make the call.
Id Builder::createTextureCall(Decoration precision, Id resultType, bool proj, const TextureParameters& parameters)
Id Builder::createTextureCall(Decoration precision, Id resultType, bool fetch, bool proj, const TextureParameters& parameters)
{
static const int maxTextureArgs = 10;
Id texArgs[maxTextureArgs] = {};
@ -1196,7 +1196,9 @@ Id Builder::createTextureCall(Decoration precision, Id resultType, bool proj, co
//
Op opCode;
opCode = OpImageSampleImplicitLod;
if (xplicit) {
if (fetch) {
opCode = OpImageFetch;
} else if (xplicit) {
if (parameters.Dref) {
if (proj)
opCode = OpImageSampleProjDrefExplicitLod;