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rxs: Improve alpha-to-coverage emulation

This commit is contained in:
kd-11 2025-12-14 21:40:14 +03:00
parent 5cab7ccce0
commit 570f6a25e3
4 changed files with 32 additions and 2 deletions
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28
rpcs3/Emu/RSX/NV47/HW/nv4097.cpp
View File

@ -306,6 +306,34 @@ namespace rsx
REGS(ctx)->decode(reg, REGS(ctx)->latch);
}
void set_aa_control(context* ctx, u32 reg, u32 arg)
{
const auto latch = REGS(ctx)->latch;
if (arg == latch)
{
return;
}
// Reconfigure pipeline.
RSX(ctx)->m_graphics_state |= rsx::pipeline_config_dirty;
// If we support A2C in hardware, leave the rest upto the hardware. The pipeline config should take care of it.
const auto& backend_config = RSX(ctx)->get_backend_config();
if (backend_config.supports_hw_a2c &&
backend_config.supports_hw_a2c_1spp)
{
return;
}
// No A2C hardware support or partial hardware support. Invalidate the current program if A2C state changed.
const auto a2c_old = REGS(ctx)->decode<NV4097_SET_ANTI_ALIASING_CONTROL>(latch).msaa_alpha_to_coverage();
const auto a2c_new = REGS(ctx)->decode<NV4097_SET_ANTI_ALIASING_CONTROL>(arg).msaa_alpha_to_coverage();
if (a2c_old != a2c_new)
{
RSX(ctx)->m_graphics_state |= rsx::fragment_program_state_dirty;
}
}
///// Draw call setup (vertex, etc)
void set_array_element16(context* ctx, u32, u32 arg)

2
rpcs3/Emu/RSX/NV47/HW/nv4097.h
View File

@ -87,6 +87,8 @@ namespace rsx
void set_transform_constant_load(context* ctx, u32 reg, u32 arg);
void set_aa_control(context* ctx, u32 reg, u32 arg);
#define RSX(ctx) ctx->rsxthr
#define REGS(ctx) (&rsx::method_registers)

2
rpcs3/Emu/RSX/Program/GLSLSnippets/RSXProg/RSXROPEpilogue.glsl
View File

@ -32,7 +32,7 @@ R"(
#endif
#ifdef _ENABLE_ALPHA_TO_COVERAGE_TEST
if (!_test_bit(rop_control, MSAA_WRITE_ENABLE_BIT) || !coverage_test_passes(col0))
if (!coverage_test_passes(col0))
{
discard;
}

2
rpcs3/Emu/RSX/rsx_methods.cpp
View File

@ -717,7 +717,6 @@ namespace rsx
state_signals[NV4097_SET_ALPHA_FUNC] = rsx::fragment_state_dirty;
state_signals[NV4097_SET_ALPHA_REF] = rsx::fragment_state_dirty;
state_signals[NV4097_SET_ALPHA_TEST_ENABLE] = rsx::fragment_program_state_dirty;
state_signals[NV4097_SET_ANTI_ALIASING_CONTROL] = rsx::fragment_program_state_dirty;
state_signals[NV4097_SET_SHADER_PACKER] = rsx::fragment_program_state_dirty;
state_signals[NV4097_SET_SHADER_WINDOW] = rsx::fragment_state_dirty;
state_signals[NV4097_SET_FOG_MODE] = rsx::fragment_state_dirty;
@ -1714,6 +1713,7 @@ namespace rsx
bind(NV4097_SET_BLEND_EQUATION, nv4097::set_blend_equation);
bind(NV4097_SET_BLEND_FUNC_SFACTOR, nv4097::set_blend_factor);
bind(NV4097_SET_BLEND_FUNC_DFACTOR, nv4097::set_blend_factor);
bind(NV4097_SET_ANTI_ALIASING_CONTROL, nv4097::set_aa_control);
//NV308A (0xa400..0xbffc!)
bind_array(NV308A_COLOR, 1, 256 * 7, nv308a::color::impl);