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VideoCommon: Manually handle texture wrapping and sampling

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This commit is contained in:
Pokechu22
2021-08-22 15:34:50 -07:00
parent 4a9b26de86
commit ddf2691395
2 changed files with 214 additions and 47 deletions
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42
Source/Core/VideoCommon/UberShaderPixel.cpp
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@ -226,17 +226,17 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
{
// Doesn't look like DirectX supports this. Oh well the code path is here just in case it
// supports this in the future.
out.Write("int4 sampleTexture(uint sampler_num, float3 uv) {{\n");
out.Write("int4 sampleTextureWrapper(uint texmap, int2 uv, int layer) {{\n");
if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
out.Write(" return iround(texture(samp[sampler_num], uv) * 255.0);\n");
out.Write(" return sampleTexture(texmap, samp[texmap], uv, layer);\n");
else if (api_type == APIType::D3D)
out.Write(" return iround(Tex[sampler_num].Sample(samp[sampler_num], uv) * 255.0);\n");
out.Write(" return sampleTexture(texmap, tex[texmap], samp[texmap], uv, layer);\n");
out.Write("}}\n\n");
}
else
{
out.Write("int4 sampleTexture(uint sampler_num, float3 uv) {{\n"
" // This is messy, but DirectX, OpenGL 3.3 and OpenGL ES 3.0 doesn't support "
out.Write("int4 sampleTextureWrapper(uint sampler_num, int2 uv, int layer) {{\n"
" // This is messy, but DirectX, OpenGL 3.3, and OpenGL ES 3.0 don't support "
"dynamic indexing of the sampler array\n"
" // With any luck the shader compiler will optimise this if the hardware supports "
"dynamic indexing.\n"
@ -244,9 +244,14 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
for (int i = 0; i < 8; i++)
{
if (api_type == APIType::OpenGL || api_type == APIType::Vulkan)
out.Write(" case {}u: return iround(texture(samp[{}], uv) * 255.0);\n", i, i);
{
out.Write(" case {0}u: return sampleTexture({0}u, samp[{0}u], uv, layer);\n", i);
}
else if (api_type == APIType::D3D)
out.Write(" case {}u: return iround(Tex[{}].Sample(samp[{}], uv) * 255.0);\n", i, i, i);
{
out.Write(" case {0}u: return sampleTexture({0}u, tex[{0}u], samp[{0}u], uv, layer);\n",
i);
}
}
out.Write(" }}\n"
"}}\n\n");
@ -284,8 +289,8 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
// ======================
// Indirect Lookup
// ======================
const auto LookupIndirectTexture = [&out, stereo](std::string_view out_var_name,
std::string_view in_index_name) {
const auto LookupIndirectTexture = [&out](std::string_view out_var_name,
std::string_view in_index_name) {
// in_index_name is the indirect stage, not the tev stage
// bpmem_iref is packed differently from RAS1_IREF
// This function assumes bpmem_iref is nonzero (i.e. matrix is not off, and the
@ -301,11 +306,9 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
" else\n"
" fixedPoint_uv = fixedPoint_uv >> " I_INDTEXSCALE "[{} >> 1].zw;\n"
"\n"
" {} = sampleTexture(texmap, float3(float2(fixedPoint_uv) / float2(" I_TEXDIMS
"[texmap].xy * 128), {})).abg;\n"
"}}",
in_index_name, in_index_name, in_index_name, in_index_name, out_var_name,
stereo ? "float(layer)" : "0.0");
" {} = sampleTextureWrapper(texmap, fixedPoint_uv, layer).abg;\n"
"}}\n",
in_index_name, in_index_name, in_index_name, in_index_name, out_var_name);
};
// ======================
@ -729,6 +732,8 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
out.Write(",\n in uint layer : SV_RenderTargetArrayIndex\n");
out.Write("\n ) {{\n");
}
if (!stereo)
out.Write(" int layer = 0;\n");
out.Write(" int3 tevcoord = int3(0, 0, 0);\n"
" State s;\n"
@ -820,7 +825,7 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
// For the undefined case, we just skip applying the indirect operation, which is close enough.
// Viewtiful Joe hits the undefined case (bug 12525).
// Wrapping and add to previous still apply in this case (and when the stage is disabled).
out.Write(" if (bpmem_iref(bt) != 0u) {{");
out.Write(" if (bpmem_iref(bt) != 0u) {{\n");
out.Write(" int3 indcoord;\n");
LookupIndirectTexture("indcoord", "bt");
out.Write(" if (bs != 0u)\n"
@ -910,11 +915,8 @@ ShaderCode GenPixelShader(APIType api_type, const ShaderHostConfig& host_config,
" uint sampler_num = {};\n",
BitfieldExtract<&TwoTevStageOrders::texmap0>("ss.order"));
out.Write("\n"
" float2 uv = (float2(tevcoord.xy)) / float2(" I_TEXDIMS
"[sampler_num].xy * 128);\n");
out.Write(" int4 color = sampleTexture(sampler_num, float3(uv, {}));\n",
stereo ? "float(layer)" : "0.0");
out.Write(" uint swap = {};\n",
" int4 color = sampleTextureWrapper(sampler_num, tevcoord.xy, layer);\n"
" uint swap = {};\n",
BitfieldExtract<&TevStageCombiner::AlphaCombiner::tswap>("ss.ac"));
out.Write(" s.TexColor = Swizzle(swap, color);\n");
out.Write(" }} else {{\n"