diff options
Diffstat (limited to 'src/video_core/engines/maxwell_3d.cpp')
| -rw-r--r-- | src/video_core/engines/maxwell_3d.cpp | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp index 9784ee069..4b15ed2f2 100644 --- a/src/video_core/engines/maxwell_3d.cpp +++ b/src/video_core/engines/maxwell_3d.cpp @@ -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 |