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gl_rasterizer: Implement line widths and smooth lines

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Implements "legacy" features from OpenGL present on hardware such as
smooth lines and line width.
This commit is contained in:
ReinUsesLisp 2020-02-24 21:02:32 -03:00
parent a9f866264d
commit 76615b9f34
5 changed files with 33 additions and 2 deletions
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10
src/video_core/engines/maxwell_3d.h
View file

@ -966,7 +966,10 @@ public:
BitField<4, 1, u32> triangle_rast_flip;
} screen_y_control;
INSERT_UNION_PADDING_WORDS(0x21);
float line_width_smooth;
float line_width_aliased;
INSERT_UNION_PADDING_WORDS(0x1F);
u32 vb_element_base;
u32 vb_base_instance;
@ -1024,7 +1027,7 @@ public:
float polygon_offset_factor;
INSERT_UNION_PADDING_WORDS(0x1);
u32 line_smooth_enable;
struct {
u32 tic_address_high;
@ -1591,6 +1594,8 @@ ASSERT_REG_POSITION(stencil_front_func_mask, 0x4E6);
ASSERT_REG_POSITION(stencil_front_mask, 0x4E7);
ASSERT_REG_POSITION(frag_color_clamp, 0x4EA);
ASSERT_REG_POSITION(screen_y_control, 0x4EB);
ASSERT_REG_POSITION(line_width_smooth, 0x4EC);
ASSERT_REG_POSITION(line_width_aliased, 0x4ED);
ASSERT_REG_POSITION(vb_element_base, 0x50D);
ASSERT_REG_POSITION(vb_base_instance, 0x50E);
ASSERT_REG_POSITION(clip_distance_enabled, 0x544);
@ -1604,6 +1609,7 @@ ASSERT_REG_POSITION(multisample_control, 0x54F);
ASSERT_REG_POSITION(condition, 0x554);
ASSERT_REG_POSITION(tsc, 0x557);
ASSERT_REG_POSITION(polygon_offset_factor, 0x55B);
ASSERT_REG_POSITION(line_smooth_enable, 0x55C);
ASSERT_REG_POSITION(tic, 0x55D);
ASSERT_REG_POSITION(stencil_two_side_enable, 0x565);
ASSERT_REG_POSITION(stencil_back_op_fail, 0x566);

14
src/video_core/renderer_opengl/gl_rasterizer.cpp
View file

@ -496,6 +496,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
SyncPrimitiveRestart();
SyncScissorTest();
SyncPointState();
SyncLineState();
SyncPolygonOffset();
SyncAlphaTest();
SyncFramebufferSRGB();
@ -1311,6 +1312,19 @@ void RasterizerOpenGL::SyncPointState() {
glDisable(GL_PROGRAM_POINT_SIZE);
}
void RasterizerOpenGL::SyncLineState() {
auto& gpu = system.GPU().Maxwell3D();
auto& flags = gpu.dirty.flags;
if (!flags[Dirty::LineWidth]) {
return;
}
flags[Dirty::LineWidth] = false;
const auto& regs = gpu.regs;
oglEnable(GL_LINE_SMOOTH, regs.line_smooth_enable);
glLineWidth(regs.line_smooth_enable ? regs.line_width_smooth : regs.line_width_aliased);
}
void RasterizerOpenGL::SyncPolygonOffset() {
auto& gpu = system.GPU().Maxwell3D();
auto& flags = gpu.dirty.flags;

3
src/video_core/renderer_opengl/gl_rasterizer.h
View file

@ -171,6 +171,9 @@ private:
/// Syncs the point state to match the guest state
void SyncPointState();
/// Syncs the line state to match the guest state
void SyncLineState();
/// Syncs the rasterizer enable state to match the guest state
void SyncRasterizeEnable();

7
src/video_core/renderer_opengl/gl_state_tracker.cpp
View file

@ -185,6 +185,12 @@ void SetupDirtyPointSize(Tables& tables) {
tables[0][OFF(point_sprite_enable)] = PointSize;
}
void SetupDirtyLineWidth(Tables& tables) {
tables[0][OFF(line_width_smooth)] = LineWidth;
tables[0][OFF(line_width_aliased)] = LineWidth;
tables[0][OFF(line_smooth_enable)] = LineWidth;
}
void SetupDirtyClipControl(Tables& tables) {
auto& table = tables[0];
table[OFF(screen_y_control)] = ClipControl;
@ -233,6 +239,7 @@ void StateTracker::Initialize() {
SetupDirtyLogicOp(tables);
SetupDirtyFragmentClampColor(tables);
SetupDirtyPointSize(tables);
SetupDirtyLineWidth(tables);
SetupDirtyClipControl(tables);
SetupDirtyDepthClampEnabled(tables);
SetupDirtyMisc(tables);

1
src/video_core/renderer_opengl/gl_state_tracker.h
View file

@ -78,6 +78,7 @@ enum : u8 {
LogicOp,
FragmentClampColor,
PointSize,
LineWidth,
ClipControl,
DepthClampEnabled,