From 1881e86c434edfc17f78f68f07443bef1120cda1 Mon Sep 17 00:00:00 2001 From: Rodolfo Bogado Date: Tue, 13 Nov 2018 20:13:16 -0300 Subject: fix viewport and scissor behavior --- src/video_core/engines/maxwell_3d.cpp | 4 +- src/video_core/engines/maxwell_3d.h | 26 +++++---- src/video_core/renderer_opengl/gl_rasterizer.cpp | 33 +++++------ src/video_core/renderer_opengl/gl_shader_manager.h | 1 + src/video_core/renderer_opengl/gl_state.cpp | 67 +++++++++++++--------- src/video_core/renderer_opengl/gl_state.h | 22 +++---- 6 files changed, 89 insertions(+), 64 deletions(-) (limited to 'src') diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp index 6de07ea56..58b598c7f 100644 --- a/src/video_core/engines/maxwell_3d.cpp +++ b/src/video_core/engines/maxwell_3d.cpp @@ -34,8 +34,8 @@ void Maxwell3D::InitializeRegisterDefaults() { // Depth range near/far is not always set, but is expected to be the default 0.0f, 1.0f. This is // needed for ARMS. for (std::size_t viewport{}; viewport < Regs::NumViewports; ++viewport) { - regs.viewport[viewport].depth_range_near = 0.0f; - regs.viewport[viewport].depth_range_far = 1.0f; + regs.viewports[viewport].depth_range_near = 0.0f; + regs.viewports[viewport].depth_range_far = 1.0f; } // Doom and Bomberman seems to use the uninitialized registers and just enable blend // so initialize blend registers with sane values diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h index 91ca57883..32780fa9a 100644 --- a/src/video_core/engines/maxwell_3d.h +++ b/src/video_core/engines/maxwell_3d.h @@ -505,9 +505,9 @@ public: INSERT_PADDING_WORDS(0x2E); - RenderTargetConfig rt[NumRenderTargets]; + std::array rt; - struct { + struct ViewportTransform { f32 scale_x; f32 scale_y; f32 scale_z; @@ -540,9 +540,11 @@ public: s32 GetHeight() const { return static_cast(translate_y + std::fabs(scale_y)) - GetY(); } - } viewport_transform[NumViewports]; + }; - struct { + std::array viewport_transform; + + struct ViewPort { union { BitField<0, 16, u32> x; BitField<16, 16, u32> width; @@ -553,7 +555,9 @@ public: }; float depth_range_near; float depth_range_far; - } viewport[NumViewports]; + }; + + std::array viewports; INSERT_PADDING_WORDS(0x1D); @@ -571,7 +575,7 @@ public: INSERT_PADDING_WORDS(0x17); - struct { + struct ScissorTest { u32 enable; union { BitField<0, 16, u32> min_x; @@ -581,9 +585,11 @@ public: BitField<0, 16, u32> min_y; BitField<16, 16, u32> max_y; }; - } scissor_test; + u32 fill; + }; + std::array scissor_test; - INSERT_PADDING_WORDS(0x52); + INSERT_PADDING_WORDS(0x15); s32 stencil_back_func_ref; u32 stencil_back_mask; @@ -1100,8 +1106,8 @@ private: ASSERT_REG_POSITION(macros, 0x45); ASSERT_REG_POSITION(tfb_enabled, 0x1D1); ASSERT_REG_POSITION(rt, 0x200); -ASSERT_REG_POSITION(viewport_transform[0], 0x280); -ASSERT_REG_POSITION(viewport, 0x300); +ASSERT_REG_POSITION(viewport_transform, 0x280); +ASSERT_REG_POSITION(viewports, 0x300); ASSERT_REG_POSITION(vertex_buffer, 0x35D); ASSERT_REG_POSITION(clear_color[0], 0x360); ASSERT_REG_POSITION(clear_depth, 0x364); diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 54cc47a9b..0bf434b45 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -642,7 +642,7 @@ void RasterizerOpenGL::DrawArrays() { params.DispatchDraw(); // Disable scissor test - state.scissor.enabled = false; + state.viewports[0].scissor.enabled = false; accelerate_draw = AccelDraw::Disabled; @@ -923,15 +923,15 @@ u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader, void RasterizerOpenGL::SyncViewport(OpenGLState& current_state) { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { + for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumViewports; i++) { const MathUtil::Rectangle viewport_rect{regs.viewport_transform[i].GetRect()}; auto& viewport = current_state.viewports[i]; viewport.x = viewport_rect.left; viewport.y = viewport_rect.bottom; viewport.width = static_cast(viewport_rect.GetWidth()); viewport.height = static_cast(viewport_rect.GetHeight()); - viewport.depth_range_far = regs.viewport[i].depth_range_far; - viewport.depth_range_near = regs.viewport[i].depth_range_near; + viewport.depth_range_far = regs.viewports[i].depth_range_far; + viewport.depth_range_near = regs.viewports[i].depth_range_near; } } @@ -1079,7 +1079,6 @@ void RasterizerOpenGL::SyncBlendState() { void RasterizerOpenGL::SyncLogicOpState() { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - // TODO(Subv): Support more than just render target 0. state.logic_op.enabled = regs.logic_op.enable != 0; if (!state.logic_op.enabled) @@ -1092,19 +1091,21 @@ void RasterizerOpenGL::SyncLogicOpState() { } void RasterizerOpenGL::SyncScissorTest() { - // TODO: what is the correct behavior here, a single scissor for all targets - // or scissor disabled for the rest of the targets? const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - state.scissor.enabled = (regs.scissor_test.enable != 0); - if (regs.scissor_test.enable == 0) { - return; + for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumViewports; i++) { + const auto& src = regs.scissor_test[i]; + auto& dst = state.viewports[i].scissor; + dst.enabled = (src.enable != 0); + if (dst.enabled == 0) { + return; + } + const u32 width = src.max_x - src.min_x; + const u32 height = src.max_y - src.min_y; + dst.x = src.min_x; + dst.y = src.min_y; + dst.width = width; + dst.height = height; } - const u32 width = regs.scissor_test.max_x - regs.scissor_test.min_x; - const u32 height = regs.scissor_test.max_y - regs.scissor_test.min_y; - state.scissor.x = regs.scissor_test.min_x; - state.scissor.y = regs.scissor_test.min_y; - state.scissor.width = width; - state.scissor.height = height; } void RasterizerOpenGL::SyncTransformFeedback() { diff --git a/src/video_core/renderer_opengl/gl_shader_manager.h b/src/video_core/renderer_opengl/gl_shader_manager.h index 2a069cdd8..9a5d7e289 100644 --- a/src/video_core/renderer_opengl/gl_shader_manager.h +++ b/src/video_core/renderer_opengl/gl_shader_manager.h @@ -67,6 +67,7 @@ public: glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, fs); state.draw.shader_program = 0; state.draw.program_pipeline = pipeline.handle; + state.geometry_shaders.enabled = (gs != 0); } private: diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp index 98622a058..dd6d946e5 100644 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ b/src/video_core/renderer_opengl/gl_state.cpp @@ -14,6 +14,7 @@ OpenGLState OpenGLState::cur_state; bool OpenGLState::s_rgb_used; OpenGLState::OpenGLState() { // These all match default OpenGL values + geometry_shaders.enabled = false; framebuffer_srgb.enabled = false; cull.enabled = false; cull.mode = GL_BACK; @@ -50,12 +51,12 @@ OpenGLState::OpenGLState() { item.height = 0; item.depth_range_near = 0.0f; item.depth_range_far = 1.0f; + item.scissor.enabled = false; + item.scissor.x = 0; + item.scissor.y = 0; + item.scissor.width = 0; + item.scissor.height = 0; } - scissor.enabled = false; - scissor.x = 0; - scissor.y = 0; - scissor.width = 0; - scissor.height = 0; for (auto& item : blend) { item.enabled = true; item.rgb_equation = GL_FUNC_ADD; @@ -136,7 +137,7 @@ void OpenGLState::ApplyCulling() const { } void OpenGLState::ApplyColorMask() const { - if (GLAD_GL_ARB_viewport_array) { + if (GLAD_GL_ARB_viewport_array && independant_blend.enabled) { for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { const auto& updated = color_mask[i]; const auto& current = cur_state.color_mask[i]; @@ -230,26 +231,10 @@ void OpenGLState::ApplyStencilTest() const { } } -void OpenGLState::ApplyScissor() const { - const bool scissor_changed = scissor.enabled != cur_state.scissor.enabled; - if (scissor_changed) { - if (scissor.enabled) { - glEnable(GL_SCISSOR_TEST); - } else { - glDisable(GL_SCISSOR_TEST); - } - } - if (scissor.enabled && - (scissor_changed || scissor.x != cur_state.scissor.x || scissor.y != cur_state.scissor.y || - scissor.width != cur_state.scissor.width || scissor.height != cur_state.scissor.height)) { - glScissor(scissor.x, scissor.y, scissor.width, scissor.height); - } -} - void OpenGLState::ApplyViewport() const { - if (GLAD_GL_ARB_viewport_array) { - for (GLuint i = 0; - i < static_cast(Tegra::Engines::Maxwell3D::Regs::NumRenderTargets); i++) { + if (GLAD_GL_ARB_viewport_array && geometry_shaders.enabled) { + for (GLuint i = 0; i < static_cast(Tegra::Engines::Maxwell3D::Regs::NumViewports); + i++) { const auto& current = cur_state.viewports[i]; const auto& updated = viewports[i]; if (updated.x != current.x || updated.y != current.y || @@ -260,6 +245,22 @@ void OpenGLState::ApplyViewport() const { updated.depth_range_far != current.depth_range_far) { glDepthRangeIndexed(i, updated.depth_range_near, updated.depth_range_far); } + const bool scissor_changed = updated.scissor.enabled != current.scissor.enabled; + if (scissor_changed) { + if (updated.scissor.enabled) { + glEnablei(GL_SCISSOR_TEST, i); + } else { + glDisablei(GL_SCISSOR_TEST, i); + } + } + if (updated.scissor.enabled && + (scissor_changed || updated.scissor.x != current.scissor.x || + updated.scissor.y != current.scissor.y || + updated.scissor.width != current.scissor.width || + updated.scissor.height != current.scissor.height)) { + glScissorIndexed(i, updated.scissor.x, updated.scissor.y, updated.scissor.width, + updated.scissor.height); + } } } else { const auto& current = cur_state.viewports[0]; @@ -273,6 +274,21 @@ void OpenGLState::ApplyViewport() const { updated.depth_range_far != current.depth_range_far) { glDepthRange(updated.depth_range_near, updated.depth_range_far); } + const bool scissor_changed = updated.scissor.enabled != current.scissor.enabled; + if (scissor_changed) { + if (updated.scissor.enabled) { + glEnable(GL_SCISSOR_TEST); + } else { + glDisable(GL_SCISSOR_TEST); + } + } + if (updated.scissor.enabled && (scissor_changed || updated.scissor.x != current.scissor.x || + updated.scissor.y != current.scissor.y || + updated.scissor.width != current.scissor.width || + updated.scissor.height != current.scissor.height)) { + glScissor(updated.scissor.x, updated.scissor.y, updated.scissor.width, + updated.scissor.height); + } } } @@ -483,7 +499,6 @@ void OpenGLState::Apply() const { } ApplyColorMask(); ApplyViewport(); - ApplyScissor(); ApplyStencilTest(); ApplySRgb(); ApplyCulling(); diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h index e5d1baae6..da487461f 100644 --- a/src/video_core/renderer_opengl/gl_state.h +++ b/src/video_core/renderer_opengl/gl_state.h @@ -39,6 +39,10 @@ public: bool enabled; // GL_FRAMEBUFFER_SRGB } framebuffer_srgb; + struct { + bool enabled; // viewports arrays are only supported when geometry shaders are enabled. + } geometry_shaders; + struct { bool enabled; // GL_CULL_FACE GLenum mode; // GL_CULL_FACE_MODE @@ -150,16 +154,15 @@ public: GLfloat height; GLfloat depth_range_near; // GL_DEPTH_RANGE GLfloat depth_range_far; // GL_DEPTH_RANGE + struct { + bool enabled; // GL_SCISSOR_TEST + GLint x; + GLint y; + GLsizei width; + GLsizei height; + } scissor; }; - std::array viewports; - - struct { - bool enabled; // GL_SCISSOR_TEST - GLint x; - GLint y; - GLsizei width; - GLsizei height; - } scissor; + std::array viewports; struct { float size; // GL_POINT_SIZE @@ -214,7 +217,6 @@ private: void ApplyLogicOp() const; void ApplyTextures() const; void ApplySamplers() const; - void ApplyScissor() const; }; } // namespace OpenGL -- cgit v1.2.3