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VideoCore: Split rasterizer regs from Regs struct

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This commit is contained in:
Yuri Kunde Schlesner 2017-01-27 20:16:36 -08:00
parent 97e06b0a0d
commit 000e78144c
14 changed files with 219 additions and 188 deletions
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24
src/video_core/rasterizer.cpp
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@ -327,14 +327,14 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
ScreenToRasterizerCoordinates(v1.screenpos),
ScreenToRasterizerCoordinates(v2.screenpos)};
if (regs.cull_mode == Regs::CullMode::KeepAll) {
if (regs.rasterizer.cull_mode == RasterizerRegs::CullMode::KeepAll) {
// Make sure we always end up with a triangle wound counter-clockwise
if (!reversed && SignedArea(vtxpos[0].xy(), vtxpos[1].xy(), vtxpos[2].xy()) <= 0) {
ProcessTriangleInternal(v0, v2, v1, true);
return;
}
} else {
if (!reversed && regs.cull_mode == Regs::CullMode::KeepClockWise) {
if (!reversed && regs.rasterizer.cull_mode == RasterizerRegs::CullMode::KeepClockWise) {
// Reverse vertex order and use the CCW code path.
ProcessTriangleInternal(v0, v2, v1, true);
return;
@ -351,13 +351,13 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
u16 max_y = std::max({vtxpos[0].y, vtxpos[1].y, vtxpos[2].y});
// Convert the scissor box coordinates to 12.4 fixed point
u16 scissor_x1 = (u16)(regs.scissor_test.x1 << 4);
u16 scissor_y1 = (u16)(regs.scissor_test.y1 << 4);
u16 scissor_x1 = (u16)(regs.rasterizer.scissor_test.x1 << 4);
u16 scissor_y1 = (u16)(regs.rasterizer.scissor_test.y1 << 4);
// x2,y2 have +1 added to cover the entire sub-pixel area
u16 scissor_x2 = (u16)((regs.scissor_test.x2 + 1) << 4);
u16 scissor_y2 = (u16)((regs.scissor_test.y2 + 1) << 4);
u16 scissor_x2 = (u16)((regs.rasterizer.scissor_test.x2 + 1) << 4);
u16 scissor_y2 = (u16)((regs.rasterizer.scissor_test.y2 + 1) << 4);
if (regs.scissor_test.mode == Regs::ScissorMode::Include) {
if (regs.rasterizer.scissor_test.mode == RasterizerRegs::ScissorMode::Include) {
// Calculate the new bounds
min_x = std::max(min_x, scissor_x1);
min_y = std::max(min_y, scissor_y1);
@ -411,7 +411,7 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
// Do not process the pixel if it's inside the scissor box and the scissor mode is set
// to Exclude
if (regs.scissor_test.mode == Regs::ScissorMode::Exclude) {
if (regs.rasterizer.scissor_test.mode == RasterizerRegs::ScissorMode::Exclude) {
if (x >= scissor_x1 && x < scissor_x2 && y >= scissor_y1 && y < scissor_y2)
continue;
}
@ -441,12 +441,14 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
// Not fully accurate. About 3 bits in precision are missing.
// Z-Buffer (z / w * scale + offset)
float depth_scale = float24::FromRaw(regs.viewport_depth_range).ToFloat32();
float depth_offset = float24::FromRaw(regs.viewport_depth_near_plane).ToFloat32();
float depth_scale = float24::FromRaw(regs.rasterizer.viewport_depth_range).ToFloat32();
float depth_offset =
float24::FromRaw(regs.rasterizer.viewport_depth_near_plane).ToFloat32();
float depth = interpolated_z_over_w * depth_scale + depth_offset;
// Potentially switch to W-Buffer
if (regs.depthmap_enable == Pica::Regs::DepthBuffering::WBuffering) {
if (regs.rasterizer.depthmap_enable ==
Pica::RasterizerRegs::DepthBuffering::WBuffering) {
// W-Buffer (z * scale + w * offset = (z / w * scale + offset) * w)
depth *= interpolated_w_inverse.ToFloat32() * wsum;
}