From cb8d51e37e7d630f1ea3dc816b2d5aaab2295bc2 Mon Sep 17 00:00:00 2001 From: Marcos Date: Mon, 26 Nov 2018 20:31:44 -0300 Subject: GPU States: Implement Polygon Offset. This is used in SMO all the time. (#1784) * GPU States: Implement Polygon Offset. This is used in SMO all the time. * Clang Format fixes. * Initialize polygon_offset in the constructor. --- src/video_core/renderer_opengl/gl_rasterizer.cpp | 12 ++++- src/video_core/renderer_opengl/gl_rasterizer.h | 3 ++ src/video_core/renderer_opengl/gl_state.cpp | 57 ++++++++++++++++++++++++ src/video_core/renderer_opengl/gl_state.h | 10 +++++ 4 files changed, 81 insertions(+), 1 deletion(-) (limited to 'src/video_core/renderer_opengl') diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 630a58e49..2d5e65f41 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -620,7 +620,7 @@ void RasterizerOpenGL::DrawArrays() { SyncTransformFeedback(); SyncPointState(); CheckAlphaTests(); - + SyncPolygonOffset(); // TODO(bunnei): Sync framebuffer_scale uniform here // TODO(bunnei): Sync scissorbox uniform(s) here @@ -1179,6 +1179,16 @@ void RasterizerOpenGL::SyncPointState() { state.point.size = regs.point_size; } +void RasterizerOpenGL::SyncPolygonOffset() { + const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; + state.polygon_offset.fill_enable = regs.polygon_offset_fill_enable != 0; + state.polygon_offset.line_enable = regs.polygon_offset_line_enable != 0; + state.polygon_offset.point_enable = regs.polygon_offset_point_enable != 0; + state.polygon_offset.units = regs.polygon_offset_units; + state.polygon_offset.factor = regs.polygon_offset_factor; + state.polygon_offset.clamp = regs.polygon_offset_clamp; +} + void RasterizerOpenGL::CheckAlphaTests() { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h index f4354289c..dfb4616f2 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.h +++ b/src/video_core/renderer_opengl/gl_rasterizer.h @@ -183,6 +183,9 @@ private: /// Syncs Color Mask void SyncColorMask(); + /// Syncs the polygon offsets + void SyncPolygonOffset(); + /// Check asserts for alpha testing. void CheckAlphaTests(); diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp index 934f4db78..b3bfad6a0 100644 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ b/src/video_core/renderer_opengl/gl_state.cpp @@ -92,6 +92,13 @@ OpenGLState::OpenGLState() { point.size = 1; fragment_color_clamp.enabled = false; + + polygon_offset.fill_enable = false; + polygon_offset.line_enable = false; + polygon_offset.point_enable = false; + polygon_offset.factor = 0.0f; + polygon_offset.units = 0.0f; + polygon_offset.clamp = 0.0f; } void OpenGLState::ApplyDefaultState() { @@ -406,6 +413,55 @@ void OpenGLState::ApplyLogicOp() const { } } +void OpenGLState::ApplyPolygonOffset() const { + + const bool fill_enable_changed = + polygon_offset.fill_enable != cur_state.polygon_offset.fill_enable; + const bool line_enable_changed = + polygon_offset.line_enable != cur_state.polygon_offset.line_enable; + const bool point_enable_changed = + polygon_offset.point_enable != cur_state.polygon_offset.point_enable; + const bool factor_changed = polygon_offset.factor != cur_state.polygon_offset.factor; + const bool units_changed = polygon_offset.units != cur_state.polygon_offset.units; + const bool clamp_changed = polygon_offset.clamp != cur_state.polygon_offset.clamp; + + if (fill_enable_changed) { + if (polygon_offset.fill_enable) { + glEnable(GL_POLYGON_OFFSET_FILL); + } else { + glDisable(GL_POLYGON_OFFSET_FILL); + } + } + + if (line_enable_changed) { + if (polygon_offset.line_enable) { + glEnable(GL_POLYGON_OFFSET_LINE); + } else { + glDisable(GL_POLYGON_OFFSET_LINE); + } + } + + if (point_enable_changed) { + if (polygon_offset.point_enable) { + glEnable(GL_POLYGON_OFFSET_POINT); + } else { + glDisable(GL_POLYGON_OFFSET_POINT); + } + } + + if ((polygon_offset.fill_enable || polygon_offset.line_enable || polygon_offset.point_enable) && + (factor_changed || units_changed || clamp_changed)) { + + if (GLAD_GL_EXT_polygon_offset_clamp && polygon_offset.clamp != 0) { + glPolygonOffsetClamp(polygon_offset.factor, polygon_offset.units, polygon_offset.clamp); + } else { + glPolygonOffset(polygon_offset.factor, polygon_offset.units); + UNIMPLEMENTED_IF_MSG(polygon_offset.clamp != 0, + "Unimplemented Depth polygon offset clamp."); + } + } +} + void OpenGLState::ApplyTextures() const { for (std::size_t i = 0; i < std::size(texture_units); ++i) { const auto& texture_unit = texture_units[i]; @@ -532,6 +588,7 @@ void OpenGLState::Apply() const { ApplyLogicOp(); ApplyTextures(); ApplySamplers(); + ApplyPolygonOffset(); cur_state = *this; } diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h index 032fc43f0..0bf19ed07 100644 --- a/src/video_core/renderer_opengl/gl_state.h +++ b/src/video_core/renderer_opengl/gl_state.h @@ -176,6 +176,15 @@ public: float size; // GL_POINT_SIZE } point; + struct { + bool point_enable; + bool line_enable; + bool fill_enable; + GLfloat units; + GLfloat factor; + GLfloat clamp; + } polygon_offset; + std::array clip_distance; // GL_CLIP_DISTANCE OpenGLState(); @@ -226,6 +235,7 @@ private: void ApplyLogicOp() const; void ApplyTextures() const; void ApplySamplers() const; + void ApplyPolygonOffset() const; }; } // namespace OpenGL -- cgit v1.2.3