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Vulkan: Alias all input textures on the same binding

This commit is contained in:
Dr. Chat 2017-02-13 13:35:53 -06:00
parent 60664d86fc
commit 75b34b83a6
2 changed files with 18 additions and 28 deletions
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9
src/xenia/gpu/spirv_shader_translator.cc
View File

@ -214,12 +214,13 @@ void SpirvShaderTranslator::StartTranslation() {
b.makeArrayType(tex_t[2], b.makeUintConstant(32), 0),
b.makeArrayType(tex_t[3], b.makeUintConstant(32), 0)};
// Create 4 texture types, all aliased on the same binding
for (int i = 0; i < 4; i++) {
tex_[i] = b.createVariable(spv::StorageClass::StorageClassUniformConstant,
tex_a_t[i],
xe::format_string("textures%dD", i + 1).c_str());
b.addDecoration(tex_[i], spv::Decoration::DecorationDescriptorSet, 1);
b.addDecoration(tex_[i], spv::Decoration::DecorationBinding, i);
b.addDecoration(tex_[i], spv::Decoration::DecorationBinding, 0);
}
// Interpolators.
@ -1401,6 +1402,12 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
}
} break;
case FetchOpcode::kSetTextureLod: {
// <lod register> = src1.x
// ... immediately after
// tfetch UseRegisterLOD=true
} break;
default:
// TODO: the rest of these
assert_unhandled_case(instr.opcode);

33
src/xenia/gpu/vulkan/texture_cache.cc
View File

@ -140,16 +140,14 @@ TextureCache::TextureCache(Memory* memory, RegisterFile* register_file,
// Create the descriptor set layout used for rendering.
// We always have the same number of samplers but only some are used.
VkDescriptorSetLayoutBinding bindings[4];
for (int i = 0; i < xe::countof(bindings); ++i) {
auto& texture_binding = bindings[i];
texture_binding.binding = i;
texture_binding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
texture_binding.descriptorCount = kMaxTextureSamplers;
texture_binding.stageFlags =
// The shaders will alias the bindings to the 4 dimensional types.
VkDescriptorSetLayoutBinding bindings[1];
bindings[0].binding = 0;
bindings[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
bindings[0].descriptorCount = kMaxTextureSamplers;
bindings[0].stageFlags =
VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT;
texture_binding.pImmutableSamplers = nullptr;
}
bindings[0].pImmutableSamplers = nullptr;
VkDescriptorSetLayoutCreateInfo descriptor_set_layout_info;
descriptor_set_layout_info.sType =
@ -330,7 +328,7 @@ TextureCache::Texture* TextureCache::DemandResolveTexture(
VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT,
xe::format_string(
"0x%.8X - 0x%.8X", texture_info.guest_address,
texture_info.guest_address + texture_info.output_length));
texture_info.guest_address + texture_info.input_length));
// Setup an access watch. If this texture is touched, it is destroyed.
texture->access_watch_handle = memory_->AddPhysicalAccessWatch(
@ -1356,22 +1354,7 @@ bool TextureCache::SetupTextureBinding(VkCommandBuffer command_buffer,
update_set_info->image_write_count++;
image_write->sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
switch (texture_info.dimension) {
case Dimension::k1D:
image_write->dstBinding = 0;
break;
case Dimension::k2D:
image_write->dstBinding = 1;
break;
case Dimension::k3D:
image_write->dstBinding = 2;
break;
case Dimension::kCube:
image_write->dstBinding = 3;
break;
}
image_write->dstArrayElement = binding.fetch_constant;
image_write->descriptorCount = 1;
image_write->descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;