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GPU: Make the SetShader macro call do the same as the real macro's code.

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It'll now set the CB_SIZE, CB_ADDRESS and CB_BIND registers when it's called.

Presumably this SetShader function is binding the constant shader uniforms to buffer 1 (c1[]).
This commit is contained in:
Subv
2018-03-17 16:17:45 -05:00
parent 579000e747
commit 1d9d9c16e8
2 changed files with 44 additions and 3 deletions
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20
src/video_core/engines/maxwell_3d.cpp
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@ -84,7 +84,7 @@ void Maxwell3D::SetShader(const std::vector<u32>& parameters) {
/**
* Parameters description:
* [0] = Shader Program.
* [1] = Unknown.
* [1] = Unknown, presumably the shader id.
* [2] = Offset to the start of the shader, after the 0x30 bytes header.
* [3] = Shader Type.
* [4] = Const Buffer Address >> 8.
@ -100,6 +100,24 @@ void Maxwell3D::SetShader(const std::vector<u32>& parameters) {
shader.type = shader_type;
shader.address = address;
shader.cb_address = cb_address;
// Perform the same operations as the real macro code.
// TODO(Subv): Early exit if register 0xD1C + shader_program contains the same as params[1].
auto& shader_regs = regs.shader_config[static_cast<size_t>(shader_program)];
shader_regs.start_id = address;
// TODO(Subv): Write params[1] to register 0xD1C + shader_program.
// TODO(Subv): Write params[2] to register 0xD22 + shader_program.
// Note: This value is hardcoded in the macro's code.
static constexpr u32 DefaultCBSize = 0x10000;
regs.const_buffer.cb_size = DefaultCBSize;
regs.const_buffer.cb_address_high = cb_address >> 32;
regs.const_buffer.cb_address_low = cb_address & 0xFFFFFFFF;
// Write a hardcoded 0x11 to CB_BIND, this binds the current const buffer to buffer c1[] in the
// shader. It's likely that these are the constants for the shader.
regs.cb_bind[static_cast<size_t>(shader_type)].valid.Assign(1);
regs.cb_bind[static_cast<size_t>(shader_type)].index.Assign(1);
}
} // namespace Engines