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Pushing constants.

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This commit is contained in:
Ben Vanik
2016-02-21 10:38:58 -08:00
parent 7b2a508db0
commit b3faba50a3
4 changed files with 111 additions and 34 deletions
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36
src/xenia/gpu/spirv_shader_translator.cc
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@@ -133,24 +133,30 @@ void SpirvShaderTranslator::StartTranslation() {
b.addDecoration(consts_, spv::Decoration::DecorationBinding, 1);
}
// Push constants.
Id push_constants_type =
b.makeStructType({vec4_float_type_, vec4_float_type_, vec4_float_type_},
"push_consts_type");
b.addMemberDecoration(push_constants_type, 0,
spv::Decoration::DecorationOffset, 0);
// Push constants, represented by SpirvPushConstants.
Id push_constants_type = b.makeStructType(
{vec4_float_type_, vec4_float_type_, vec4_float_type_, uint_type},
"push_consts_type");
// float4 window_scale;
b.addMemberDecoration(
push_constants_type, 0, spv::Decoration::DecorationOffset,
static_cast<int>(offsetof(SpirvPushConstants, window_scale)));
b.addMemberName(push_constants_type, 0, "window_scale");
b.addMemberDecoration(push_constants_type, 1,
spv::Decoration::DecorationOffset, 4 * sizeof(float));
// float4 vtx_fmt;
b.addMemberDecoration(
push_constants_type, 1, spv::Decoration::DecorationOffset,
static_cast<int>(offsetof(SpirvPushConstants, vtx_fmt)));
b.addMemberName(push_constants_type, 1, "vtx_fmt");
b.addMemberDecoration(push_constants_type, 2,
spv::Decoration::DecorationOffset,
2 * 4 * sizeof(float));
// float4 alpha_test;
b.addMemberDecoration(
push_constants_type, 2, spv::Decoration::DecorationOffset,
static_cast<int>(offsetof(SpirvPushConstants, alpha_test)));
b.addMemberName(push_constants_type, 2, "alpha_test");
// uint ps_param_gen;
b.addMemberDecoration(
push_constants_type, 3, spv::Decoration::DecorationOffset,
static_cast<int>(offsetof(SpirvPushConstants, ps_param_gen)));
b.addMemberName(push_constants_type, 3, "ps_param_gen");
push_consts_ = b.createVariable(spv::StorageClass::StorageClassPushConstant,
push_constants_type, "push_consts");