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Merge pull request #1624 from JayFoxRox/buffer-allow-write 

Implement buffer-write allow registers
This commit is contained in:
bunnei 2016-04-09 11:19:23 -04:00
parent a4c5d8fd50 35a92b4097
commit 069e040500
4 changed files with 78 additions and 12 deletions
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12
src/video_core/pica.h
View File

@ -578,7 +578,17 @@ struct Regs {
}
struct {
INSERT_PADDING_WORDS(0x6);
INSERT_PADDING_WORDS(0x3);
union {
BitField<0, 4, u32> allow_color_write; // 0 = disable, else enable
};
INSERT_PADDING_WORDS(0x1);
union {
BitField<0, 2, u32> allow_depth_stencil_write; // 0 = disable, else enable
};
DepthFormat depth_format; // TODO: Should be a BitField!
BitField<16, 3, ColorFormat> color_format;

8
src/video_core/rasterizer.cpp
View File

@ -809,7 +809,8 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0,
auto UpdateStencil = [stencil_test, x, y, &old_stencil](Pica::Regs::StencilAction action) {
u8 new_stencil = PerformStencilAction(action, old_stencil, stencil_test.reference_value);
SetStencil(x >> 4, y >> 4, (new_stencil & stencil_test.write_mask) | (old_stencil & ~stencil_test.write_mask));
if (g_state.regs.framebuffer.allow_depth_stencil_write != 0)
SetStencil(x >> 4, y >> 4, (new_stencil & stencil_test.write_mask) | (old_stencil & ~stencil_test.write_mask));
};
if (stencil_action_enable) {
@ -909,7 +910,7 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0,
}
}
if (output_merger.depth_write_enable)
if (regs.framebuffer.allow_depth_stencil_write != 0 && output_merger.depth_write_enable)
SetDepth(x >> 4, y >> 4, z);
// The stencil depth_pass action is executed even if depth testing is disabled
@ -1133,7 +1134,8 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0,
output_merger.alpha_enable ? blend_output.a() : dest.a()
};
DrawPixel(x >> 4, y >> 4, result);
if (regs.framebuffer.allow_color_write != 0)
DrawPixel(x >> 4, y >> 4, result);
}
}
}

61
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -153,6 +153,9 @@ void RasterizerOpenGL::Reset() {
SyncLogicOp();
SyncStencilTest();
SyncDepthTest();
SyncColorWriteMask();
SyncStencilWriteMask();
SyncDepthWriteMask();
SetShader();
@ -268,15 +271,36 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
state.draw.shader_dirty = true;
break;
// Stencil test
// Sync GL stencil test + stencil write mask
// (Pica stencil test function register also contains a stencil write mask)
case PICA_REG_INDEX(output_merger.stencil_test.raw_func):
SyncStencilTest();
SyncStencilWriteMask();
break;
case PICA_REG_INDEX(output_merger.stencil_test.raw_op):
case PICA_REG_INDEX(framebuffer.depth_format):
SyncStencilTest();
break;
// Depth test
// Sync GL depth test + depth and color write mask
// (Pica depth test function register also contains a depth and color write mask)
case PICA_REG_INDEX(output_merger.depth_test_enable):
SyncDepthTest();
SyncDepthWriteMask();
SyncColorWriteMask();
break;
// Sync GL depth and stencil write mask
// (This is a dedicated combined depth / stencil write-enable register)
case PICA_REG_INDEX(framebuffer.allow_depth_stencil_write):
SyncDepthWriteMask();
SyncStencilWriteMask();
break;
// Sync GL color write mask
// (This is a dedicated color write-enable register)
case PICA_REG_INDEX(framebuffer.allow_color_write):
SyncColorWriteMask();
break;
// Logic op
@ -880,13 +904,39 @@ void RasterizerOpenGL::SyncLogicOp() {
state.logic_op = PicaToGL::LogicOp(Pica::g_state.regs.output_merger.logic_op);
}
void RasterizerOpenGL::SyncColorWriteMask() {
const auto& regs = Pica::g_state.regs;
auto IsColorWriteEnabled = [&](u32 value) {
return (regs.framebuffer.allow_color_write != 0 && value != 0) ? GL_TRUE : GL_FALSE;
};
state.color_mask.red_enabled = IsColorWriteEnabled(regs.output_merger.red_enable);
state.color_mask.green_enabled = IsColorWriteEnabled(regs.output_merger.green_enable);
state.color_mask.blue_enabled = IsColorWriteEnabled(regs.output_merger.blue_enable);
state.color_mask.alpha_enabled = IsColorWriteEnabled(regs.output_merger.alpha_enable);
}
void RasterizerOpenGL::SyncStencilWriteMask() {
const auto& regs = Pica::g_state.regs;
state.stencil.write_mask = (regs.framebuffer.allow_depth_stencil_write != 0)
? static_cast<GLuint>(regs.output_merger.stencil_test.write_mask)
: 0;
}
void RasterizerOpenGL::SyncDepthWriteMask() {
const auto& regs = Pica::g_state.regs;
state.depth.write_mask = (regs.framebuffer.allow_depth_stencil_write != 0 && regs.output_merger.depth_write_enable)
? GL_TRUE
: GL_FALSE;
}
void RasterizerOpenGL::SyncStencilTest() {
const auto& regs = Pica::g_state.regs;
state.stencil.test_enabled = regs.output_merger.stencil_test.enable && regs.framebuffer.depth_format == Pica::Regs::DepthFormat::D24S8;
state.stencil.test_func = PicaToGL::CompareFunc(regs.output_merger.stencil_test.func);
state.stencil.test_ref = regs.output_merger.stencil_test.reference_value;
state.stencil.test_mask = regs.output_merger.stencil_test.input_mask;
state.stencil.write_mask = regs.output_merger.stencil_test.write_mask;
state.stencil.action_stencil_fail = PicaToGL::StencilOp(regs.output_merger.stencil_test.action_stencil_fail);
state.stencil.action_depth_fail = PicaToGL::StencilOp(regs.output_merger.stencil_test.action_depth_fail);
state.stencil.action_depth_pass = PicaToGL::StencilOp(regs.output_merger.stencil_test.action_depth_pass);
@ -898,11 +948,6 @@ void RasterizerOpenGL::SyncDepthTest() {
regs.output_merger.depth_write_enable == 1;
state.depth.test_func = regs.output_merger.depth_test_enable == 1 ?
PicaToGL::CompareFunc(regs.output_merger.depth_test_func) : GL_ALWAYS;
state.color_mask.red_enabled = regs.output_merger.red_enable;
state.color_mask.green_enabled = regs.output_merger.green_enable;
state.color_mask.blue_enabled = regs.output_merger.blue_enable;
state.color_mask.alpha_enabled = regs.output_merger.alpha_enable;
state.depth.write_mask = regs.output_merger.depth_write_enable ? GL_TRUE : GL_FALSE;
}
void RasterizerOpenGL::SyncCombinerColor() {

9
src/video_core/renderer_opengl/gl_rasterizer.h
View File

@ -344,6 +344,15 @@ private:
/// Syncs the logic op states to match the PICA register
void SyncLogicOp();
/// Syncs the color write mask to match the PICA register state
void SyncColorWriteMask();
/// Syncs the stencil write mask to match the PICA register state
void SyncStencilWriteMask();
/// Syncs the depth write mask to match the PICA register state
void SyncDepthWriteMask();
/// Syncs the stencil test states to match the PICA register
void SyncStencilTest();