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rssx" Halfplement alpha-to-coverage AA transparency

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This commit is contained in:
kd-11 2018-03-07 23:09:38 +03:00
parent 2dce55d036
commit f00d9a7c7f
3 changed files with 84 additions and 21 deletions
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38
rpcs3/Emu/RSX/GL/GLGSRender.cpp
View File

@ -1187,7 +1187,7 @@ void GLGSRender::update_draw_state()
}
}
const bool mrt_blend_enabled[] =
bool mrt_blend_enabled[] =
{
rsx::method_registers.blend_enabled(),
rsx::method_registers.blend_enabled_surface_1(),
@ -1195,18 +1195,38 @@ void GLGSRender::update_draw_state()
rsx::method_registers.blend_enabled_surface_3()
};
bool blend_equation_override = false;
if (rsx::method_registers.msaa_alpha_to_coverage_enabled() &&
!rsx::method_registers.alpha_test_enabled())
{
if (rsx::method_registers.msaa_enabled() &&
rsx::method_registers.msaa_sample_mask() &&
rsx::method_registers.surface_antialias() != rsx::surface_antialiasing::center_1_sample)
{
//fake alpha-to-coverage
//blend used in conjunction with alpha test to fake order-independent edge transparency
mrt_blend_enabled[0] = mrt_blend_enabled[1] = mrt_blend_enabled[2] = mrt_blend_enabled[3] = true;
blend_equation_override = true;
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendEquation(GL_FUNC_ADD);
}
}
if (mrt_blend_enabled[0] || mrt_blend_enabled[1] || mrt_blend_enabled[2] || mrt_blend_enabled[3])
{
glBlendFuncSeparate(blend_factor(rsx::method_registers.blend_func_sfactor_rgb()),
blend_factor(rsx::method_registers.blend_func_dfactor_rgb()),
blend_factor(rsx::method_registers.blend_func_sfactor_a()),
blend_factor(rsx::method_registers.blend_func_dfactor_a()));
if (!blend_equation_override)
{
glBlendFuncSeparate(blend_factor(rsx::method_registers.blend_func_sfactor_rgb()),
blend_factor(rsx::method_registers.blend_func_dfactor_rgb()),
blend_factor(rsx::method_registers.blend_func_sfactor_a()),
blend_factor(rsx::method_registers.blend_func_dfactor_a()));
auto blend_colors = rsx::get_constant_blend_colors();
glBlendColor(blend_colors[0], blend_colors[1], blend_colors[2], blend_colors[3]);
auto blend_colors = rsx::get_constant_blend_colors();
glBlendColor(blend_colors[0], blend_colors[1], blend_colors[2], blend_colors[3]);
glBlendEquationSeparate(blend_equation(rsx::method_registers.blend_equation_rgb()),
blend_equation(rsx::method_registers.blend_equation_a()));
glBlendEquationSeparate(blend_equation(rsx::method_registers.blend_equation_rgb()),
blend_equation(rsx::method_registers.blend_equation_a()));
}
}
gl_state.enablei(mrt_blend_enabled[0], GL_BLEND, 0);

28
rpcs3/Emu/RSX/RSXThread.cpp
View File

@ -543,8 +543,11 @@ namespace rsx
performance_counters.FIFO_idle_timestamp = get_system_time();
performance_counters.FIFO_is_idle = true;
}
else
{
do_internal_task();
}
do_internal_task();
continue;
}
@ -950,11 +953,28 @@ namespace rsx
void thread::fill_fragment_state_buffer(void *buffer, const RSXFragmentProgram &fragment_program)
{
const u32 is_alpha_tested = rsx::method_registers.alpha_test_enabled();
const f32 alpha_ref = rsx::method_registers.alpha_ref() / 255.f;
//TODO: Properly support alpha-to-coverage and alpha-to-one behavior in shaders
auto fragment_alpha_func = rsx::method_registers.alpha_func();
auto alpha_ref = rsx::method_registers.alpha_ref() / 255.f;
auto is_alpha_tested = (u32)rsx::method_registers.alpha_test_enabled();
if (rsx::method_registers.msaa_alpha_to_coverage_enabled() && !is_alpha_tested)
{
if (rsx::method_registers.msaa_enabled() &&
rsx::method_registers.surface_antialias() != rsx::surface_antialiasing::center_1_sample)
{
//alpha values generate a coverage mask for order independent blending
//requires hardware AA to work properly (or just fragment sample stage in fragment shaders)
//simulated using combined alpha blend and alpha test
fragment_alpha_func = rsx::comparison_function::greater;
alpha_ref = rsx::method_registers.msaa_sample_mask()? 0.25f : 0.f;
is_alpha_tested |= (1 << 4);
}
}
const f32 fog0 = rsx::method_registers.fog_params_0();
const f32 fog1 = rsx::method_registers.fog_params_1();
const u32 alpha_func = static_cast<u32>(rsx::method_registers.alpha_func());
const u32 alpha_func = static_cast<u32>(fragment_alpha_func);
const u32 fog_mode = static_cast<u32>(rsx::method_registers.fog_equation());
// Generate wpos coeffecients

39
rpcs3/Emu/RSX/VK/VKGSRender.cpp
View File

@ -2165,7 +2165,7 @@ void VKGSRender::load_program(const vk::vertex_upload_info& vertex_info)
properties.att_state[idx].colorWriteMask = mask;
}
const bool mrt_blend_enabled[] =
bool mrt_blend_enabled[] =
{
rsx::method_registers.blend_enabled(),
rsx::method_registers.blend_enabled_surface_1(),
@ -2173,15 +2173,38 @@ void VKGSRender::load_program(const vk::vertex_upload_info& vertex_info)
rsx::method_registers.blend_enabled_surface_3()
};
bool blend_equation_override = false;
VkBlendFactor sfactor_rgb, sfactor_a, dfactor_rgb, dfactor_a;
VkBlendOp equation_rgb, equation_a;
if (rsx::method_registers.msaa_alpha_to_coverage_enabled() &&
!rsx::method_registers.alpha_test_enabled())
{
if (rsx::method_registers.msaa_enabled() &&
rsx::method_registers.msaa_sample_mask() &&
rsx::method_registers.surface_antialias() != rsx::surface_antialiasing::center_1_sample)
{
//fake alpha-to-coverage
//blend used in conjunction with alpha test to fake order-independent edge transparency
mrt_blend_enabled[0] = mrt_blend_enabled[1] = mrt_blend_enabled[2] = mrt_blend_enabled[3] = true;
blend_equation_override = true;
sfactor_rgb = sfactor_a = VK_BLEND_FACTOR_SRC_ALPHA;
dfactor_rgb = dfactor_a = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
equation_rgb = equation_a = VK_BLEND_OP_ADD;
}
}
if (mrt_blend_enabled[0] || mrt_blend_enabled[1] || mrt_blend_enabled[2] || mrt_blend_enabled[3])
{
VkBlendFactor sfactor_rgb = vk::get_blend_factor(rsx::method_registers.blend_func_sfactor_rgb());
VkBlendFactor sfactor_a = vk::get_blend_factor(rsx::method_registers.blend_func_sfactor_a());
VkBlendFactor dfactor_rgb = vk::get_blend_factor(rsx::method_registers.blend_func_dfactor_rgb());
VkBlendFactor dfactor_a = vk::get_blend_factor(rsx::method_registers.blend_func_dfactor_a());
VkBlendOp equation_rgb = vk::get_blend_op(rsx::method_registers.blend_equation_rgb());
VkBlendOp equation_a = vk::get_blend_op(rsx::method_registers.blend_equation_a());
if (!blend_equation_override)
{
sfactor_rgb = vk::get_blend_factor(rsx::method_registers.blend_func_sfactor_rgb());
sfactor_a = vk::get_blend_factor(rsx::method_registers.blend_func_sfactor_a());
dfactor_rgb = vk::get_blend_factor(rsx::method_registers.blend_func_dfactor_rgb());
dfactor_a = vk::get_blend_factor(rsx::method_registers.blend_func_dfactor_a());
equation_rgb = vk::get_blend_op(rsx::method_registers.blend_equation_rgb());
equation_a = vk::get_blend_op(rsx::method_registers.blend_equation_a());
}
for (u8 idx = 0; idx < m_draw_buffers_count; ++idx)
{