From 145ae369639af6f91a59b8217c5e9ba42b0c5f0b Mon Sep 17 00:00:00 2001 From: Rodolfo Bogado Date: Fri, 2 Nov 2018 00:21:25 -0300 Subject: [PATCH] Implement multi-target viewports and blending --- src/video_core/engines/maxwell_3d.cpp | 16 ++ src/video_core/engines/maxwell_3d.h | 14 +- .../renderer_opengl/gl_rasterizer.cpp | 93 ++++---- .../renderer_opengl/gl_rasterizer.h | 5 +- src/video_core/renderer_opengl/gl_state.cpp | 205 ++++++++++++------ src/video_core/renderer_opengl/gl_state.h | 52 +++-- 6 files changed, 258 insertions(+), 127 deletions(-) diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp index d79c50919..2cd595f26 100644 --- a/src/video_core/engines/maxwell_3d.cpp +++ b/src/video_core/engines/maxwell_3d.cpp @@ -37,6 +37,22 @@ void Maxwell3D::InitializeRegisterDefaults() { regs.viewport[viewport].depth_range_near = 0.0f; regs.viewport[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 + regs.blend.equation_rgb = Regs::Blend::Equation::Add; + regs.blend.factor_source_rgb = Regs::Blend::Factor::One; + regs.blend.factor_dest_rgb = Regs::Blend::Factor::Zero; + regs.blend.equation_a = Regs::Blend::Equation::Add; + regs.blend.factor_source_a = Regs::Blend::Factor::One; + regs.blend.factor_dest_a = Regs::Blend::Factor::Zero; + for (std::size_t blend_index = 0; blend_index < Regs::NumRenderTargets; blend_index++) { + regs.independent_blend[blend_index].equation_rgb = Regs::Blend::Equation::Add; + regs.independent_blend[blend_index].factor_source_rgb = Regs::Blend::Factor::One; + regs.independent_blend[blend_index].factor_dest_rgb = Regs::Blend::Factor::Zero; + regs.independent_blend[blend_index].equation_a = Regs::Blend::Equation::Add; + regs.independent_blend[blend_index].factor_source_a = Regs::Blend::Factor::One; + regs.independent_blend[blend_index].factor_dest_a = Regs::Blend::Factor::Zero; + } } void Maxwell3D::CallMacroMethod(u32 method, std::vector parameters) { diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h index 50873813e..33eb57360 100644 --- a/src/video_core/engines/maxwell_3d.h +++ b/src/video_core/engines/maxwell_3d.h @@ -646,8 +646,14 @@ public: ComparisonOp depth_test_func; float alpha_test_ref; ComparisonOp alpha_test_func; - - INSERT_PADDING_WORDS(0x9); + u32 draw_tfb_stride; + struct { + float r; + float g; + float b; + float a; + } blend_color; + INSERT_PADDING_WORDS(0x4); struct { u32 separate_alpha; @@ -1087,6 +1093,10 @@ ASSERT_REG_POSITION(depth_write_enabled, 0x4BA); ASSERT_REG_POSITION(alpha_test_enabled, 0x4BB); ASSERT_REG_POSITION(d3d_cull_mode, 0x4C2); ASSERT_REG_POSITION(depth_test_func, 0x4C3); +ASSERT_REG_POSITION(alpha_test_ref, 0x4C4); +ASSERT_REG_POSITION(alpha_test_func, 0x4C5); +ASSERT_REG_POSITION(draw_tfb_stride, 0x4C6); +ASSERT_REG_POSITION(blend_color, 0x4C7); ASSERT_REG_POSITION(blend, 0x4CF); ASSERT_REG_POSITION(stencil_enable, 0x4E0); ASSERT_REG_POSITION(stencil_front_op_fail, 0x4E1); diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index a0527fe57..73770ff69 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -580,7 +580,6 @@ void RasterizerOpenGL::DrawArrays() { SyncLogicOpState(); SyncCullMode(); SyncPrimitiveRestart(); - SyncDepthRange(); SyncScissorTest(); // Alpha Testing is synced on shaders. SyncTransformFeedback(); @@ -899,12 +898,16 @@ u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader, void RasterizerOpenGL::SyncViewport() { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - const MathUtil::Rectangle viewport_rect{regs.viewport_transform[0].GetRect()}; - - state.viewport.x = viewport_rect.left; - state.viewport.y = viewport_rect.bottom; - state.viewport.width = static_cast(viewport_rect.GetWidth()); - state.viewport.height = static_cast(viewport_rect.GetHeight()); + for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { + const MathUtil::Rectangle viewport_rect{regs.viewport_transform[i].GetRect()}; + auto& viewport = 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; + } } void RasterizerOpenGL::SyncClipEnabled() { @@ -946,13 +949,6 @@ void RasterizerOpenGL::SyncPrimitiveRestart() { state.primitive_restart.index = regs.primitive_restart.index; } -void RasterizerOpenGL::SyncDepthRange() { - const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - - state.depth.depth_range_near = regs.viewport->depth_range_near; - state.depth.depth_range_far = regs.viewport->depth_range_far; -} - void RasterizerOpenGL::SyncDepthTestState() { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; @@ -996,23 +992,44 @@ void RasterizerOpenGL::SyncStencilTestState() { void RasterizerOpenGL::SyncBlendState() { const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs; - // TODO(Subv): Support more than just render target 0. - state.blend.enabled = regs.blend.enable[0] != 0; + state.blend_color.red = regs.blend_color.r; + state.blend_color.green = regs.blend_color.g; + state.blend_color.blue = regs.blend_color.b; + state.blend_color.alpha = regs.blend_color.a; - if (!state.blend.enabled) + state.independant_blend.enabled = regs.independent_blend_enable; + if (!state.independant_blend.enabled) { + auto& blend = state.blend[0]; + blend.separate_alpha = regs.blend.separate_alpha; + blend.rgb_equation = MaxwellToGL::BlendEquation(regs.blend.equation_rgb); + blend.src_rgb_func = MaxwellToGL::BlendFunc(regs.blend.factor_source_rgb); + blend.dst_rgb_func = MaxwellToGL::BlendFunc(regs.blend.factor_dest_rgb); + if (blend.separate_alpha) { + blend.a_equation = MaxwellToGL::BlendEquation(regs.blend.equation_a); + blend.src_a_func = MaxwellToGL::BlendFunc(regs.blend.factor_source_a); + blend.dst_a_func = MaxwellToGL::BlendFunc(regs.blend.factor_dest_a); + } + for (size_t i = 1; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { + state.blend[i].enabled = false; + } return; + } - ASSERT_MSG(regs.logic_op.enable == 0, - "Blending and logic op can't be enabled at the same time."); - - ASSERT_MSG(regs.independent_blend_enable == 1, "Only independent blending is implemented"); - ASSERT_MSG(!regs.independent_blend[0].separate_alpha, "Unimplemented"); - state.blend.rgb_equation = MaxwellToGL::BlendEquation(regs.independent_blend[0].equation_rgb); - state.blend.src_rgb_func = MaxwellToGL::BlendFunc(regs.independent_blend[0].factor_source_rgb); - state.blend.dst_rgb_func = MaxwellToGL::BlendFunc(regs.independent_blend[0].factor_dest_rgb); - state.blend.a_equation = MaxwellToGL::BlendEquation(regs.independent_blend[0].equation_a); - state.blend.src_a_func = MaxwellToGL::BlendFunc(regs.independent_blend[0].factor_source_a); - state.blend.dst_a_func = MaxwellToGL::BlendFunc(regs.independent_blend[0].factor_dest_a); + for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { + auto& blend = state.blend[i]; + blend.enabled = regs.blend.enable[i] != 0; + if (!blend.enabled) + continue; + blend.separate_alpha = regs.independent_blend[i].separate_alpha; + blend.rgb_equation = MaxwellToGL::BlendEquation(regs.independent_blend[i].equation_rgb); + blend.src_rgb_func = MaxwellToGL::BlendFunc(regs.independent_blend[i].factor_source_rgb); + blend.dst_rgb_func = MaxwellToGL::BlendFunc(regs.independent_blend[i].factor_dest_rgb); + if (blend.separate_alpha) { + blend.a_equation = MaxwellToGL::BlendEquation(regs.independent_blend[i].equation_a); + blend.src_a_func = MaxwellToGL::BlendFunc(regs.independent_blend[i].factor_source_a); + blend.dst_a_func = MaxwellToGL::BlendFunc(regs.independent_blend[i].factor_dest_a); + } + } } void RasterizerOpenGL::SyncLogicOpState() { @@ -1031,19 +1048,19 @@ 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); - // TODO(Blinkhawk): Figure if the hardware supports scissor testing per viewport and how it's - // implemented. - if (regs.scissor_test.enable != 0) { - 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; + if (regs.scissor_test.enable == 0) { + return; } + 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_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h index 47097c569..8ec22df8d 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.h +++ b/src/video_core/renderer_opengl/gl_rasterizer.h @@ -133,7 +133,7 @@ private: u32 SetupTextures(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader, GLenum primitive_mode, u32 current_unit); - /// Syncs the viewport to match the guest state + /// Syncs the viewport and depth range to match the guest state void SyncViewport(); /// Syncs the clip enabled status to match the guest state @@ -148,9 +148,6 @@ private: /// Syncs the primitve restart to match the guest state void SyncPrimitiveRestart(); - /// Syncs the depth range to match the guest state - void SyncDepthRange(); - /// Syncs the depth test state to match the guest state void SyncDepthTestState(); diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp index b6b426f34..2e1f81e26 100644 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ b/src/video_core/renderer_opengl/gl_state.cpp @@ -22,8 +22,6 @@ OpenGLState::OpenGLState() { depth.test_enabled = false; depth.test_func = GL_LESS; depth.write_mask = GL_TRUE; - depth.depth_range_near = 0.0f; - depth.depth_range_far = 1.0f; primitive_restart.enabled = false; primitive_restart.index = 0; @@ -45,19 +43,33 @@ OpenGLState::OpenGLState() { }; reset_stencil(stencil.front); reset_stencil(stencil.back); - - blend.enabled = true; - blend.rgb_equation = GL_FUNC_ADD; - blend.a_equation = GL_FUNC_ADD; - blend.src_rgb_func = GL_ONE; - blend.dst_rgb_func = GL_ZERO; - blend.src_a_func = GL_ONE; - blend.dst_a_func = GL_ZERO; - blend.color.red = 0.0f; - blend.color.green = 0.0f; - blend.color.blue = 0.0f; - blend.color.alpha = 0.0f; - + for (auto& item : viewports) { + item.x = 0; + item.y = 0; + item.width = 0; + item.height = 0; + item.depth_range_near = 0.0f; + item.depth_range_far = 1.0f; + } + 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; + item.a_equation = GL_FUNC_ADD; + item.src_rgb_func = GL_ONE; + item.dst_rgb_func = GL_ZERO; + item.src_a_func = GL_ONE; + item.dst_a_func = GL_ZERO; + } + independant_blend.enabled = false; + blend_color.red = 0.0f; + blend_color.green = 0.0f; + blend_color.blue = 0.0f; + blend_color.alpha = 0.0f; logic_op.enabled = false; logic_op.operation = GL_COPY; @@ -73,17 +85,6 @@ OpenGLState::OpenGLState() { draw.shader_program = 0; draw.program_pipeline = 0; - scissor.enabled = false; - scissor.x = 0; - scissor.y = 0; - scissor.width = 0; - scissor.height = 0; - - viewport.x = 0; - viewport.y = 0; - viewport.width = 0; - viewport.height = 0; - clip_distance = {}; point.size = 1; @@ -152,11 +153,6 @@ void OpenGLState::ApplyDepth() const { if (depth.write_mask != cur_state.depth.write_mask) { glDepthMask(depth.write_mask); } - // Depth range - if (depth.depth_range_near != cur_state.depth.depth_range_near || - depth.depth_range_far != cur_state.depth.depth_range_far) { - glDepthRange(depth.depth_range_near, depth.depth_range_far); - } } void OpenGLState::ApplyPrimitiveRestart() const { @@ -208,7 +204,7 @@ void OpenGLState::ApplyStencilTest() const { } } -void OpenGLState::ApplyScissorTest() const { +void OpenGLState::ApplyScissor() const { const bool scissor_changed = scissor.enabled != cur_state.scissor.enabled; if (scissor_changed) { if (scissor.enabled) { @@ -217,51 +213,141 @@ void OpenGLState::ApplyScissorTest() const { glDisable(GL_SCISSOR_TEST); } } - if (scissor_changed || 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) { + 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::ApplyBlending() const { - const bool blend_changed = blend.enabled != cur_state.blend.enabled; +void OpenGLState::ApplyViewport() const { + if (GLAD_GL_ARB_viewport_array) { + for (GLuint i = 0; + i < static_cast(Tegra::Engines::Maxwell3D::Regs::NumRenderTargets); i++) { + const auto& current = cur_state.viewports[i]; + const auto& updated = viewports[i]; + if (updated.x != current.x || updated.y != current.y || + updated.width != current.width || updated.height != current.height) { + glViewportIndexedf(i, updated.x, updated.y, updated.width, updated.height); + } + if (updated.depth_range_near != current.depth_range_near || + updated.depth_range_far != current.depth_range_far) { + glDepthRangeIndexed(i, updated.depth_range_near, updated.depth_range_far); + } + } + } else { + const auto& current = cur_state.viewports[0]; + const auto& updated = viewports[0]; + if (updated.x != current.x || updated.y != current.y || updated.width != current.width || + updated.height != current.height) { + glViewport(updated.x, updated.y, updated.width, updated.height); + } + if (updated.depth_range_near != current.depth_range_near || + updated.depth_range_far != current.depth_range_far) { + glDepthRange(updated.depth_range_near, updated.depth_range_far); + } + } +} + +void OpenGLState::ApplyGlobalBlending() const { + const Blend& current = cur_state.blend[0]; + const Blend& updated = blend[0]; + const bool blend_changed = updated.enabled != current.enabled; if (blend_changed) { - if (blend.enabled) { - ASSERT(!logic_op.enabled); + if (updated.enabled) { glEnable(GL_BLEND); } else { glDisable(GL_BLEND); } } - if (blend.enabled) { - if (blend_changed || blend.color.red != cur_state.blend.color.red || - blend.color.green != cur_state.blend.color.green || - blend.color.blue != cur_state.blend.color.blue || - blend.color.alpha != cur_state.blend.color.alpha) { - glBlendColor(blend.color.red, blend.color.green, blend.color.blue, blend.color.alpha); + if (!updated.enabled) { + return; + } + if (updated.separate_alpha) { + if (blend_changed || updated.src_rgb_func != current.src_rgb_func || + updated.dst_rgb_func != current.dst_rgb_func || + updated.src_a_func != current.src_a_func || updated.dst_a_func != current.dst_a_func) { + glBlendFuncSeparate(updated.src_rgb_func, updated.dst_rgb_func, updated.src_a_func, + updated.dst_a_func); } - if (blend_changed || blend.src_rgb_func != cur_state.blend.src_rgb_func || - blend.dst_rgb_func != cur_state.blend.dst_rgb_func || - blend.src_a_func != cur_state.blend.src_a_func || - blend.dst_a_func != cur_state.blend.dst_a_func) { - glBlendFuncSeparate(blend.src_rgb_func, blend.dst_rgb_func, blend.src_a_func, - blend.dst_a_func); + if (blend_changed || updated.rgb_equation != current.rgb_equation || + updated.a_equation != current.a_equation) { + glBlendEquationSeparate(updated.rgb_equation, updated.a_equation); + } + } else { + if (blend_changed || updated.src_rgb_func != current.src_rgb_func || + updated.dst_rgb_func != current.dst_rgb_func) { + glBlendFunc(updated.src_rgb_func, updated.dst_rgb_func); } - if (blend_changed || blend.rgb_equation != cur_state.blend.rgb_equation || - blend.a_equation != cur_state.blend.a_equation) { - glBlendEquationSeparate(blend.rgb_equation, blend.a_equation); + if (blend_changed || updated.rgb_equation != current.rgb_equation) { + glBlendEquation(updated.rgb_equation); } } } +void OpenGLState::ApplyTargetBlending(int target, bool force) const { + const Blend& updated = blend[target]; + const Blend& current = cur_state.blend[target]; + const bool blend_changed = updated.enabled != current.enabled || force; + if (blend_changed) { + if (updated.enabled) { + glEnablei(GL_BLEND, static_cast(target)); + } else { + glDisablei(GL_BLEND, static_cast(target)); + } + } + if (!updated.enabled) { + return; + } + if (updated.separate_alpha) { + if (blend_changed || updated.src_rgb_func != current.src_rgb_func || + updated.dst_rgb_func != current.dst_rgb_func || + updated.src_a_func != current.src_a_func || updated.dst_a_func != current.dst_a_func) { + glBlendFuncSeparateiARB(static_cast(target), updated.src_rgb_func, + updated.dst_rgb_func, updated.src_a_func, updated.dst_a_func); + } + + if (blend_changed || updated.rgb_equation != current.rgb_equation || + updated.a_equation != current.a_equation) { + glBlendEquationSeparateiARB(static_cast(target), updated.rgb_equation, + updated.a_equation); + } + } else { + if (blend_changed || updated.src_rgb_func != current.src_rgb_func || + updated.dst_rgb_func != current.dst_rgb_func) { + glBlendFunciARB(static_cast(target), updated.src_rgb_func, + updated.dst_rgb_func); + } + + if (blend_changed || updated.rgb_equation != current.rgb_equation) { + glBlendEquationiARB(static_cast(target), updated.rgb_equation); + } + } +} + +void OpenGLState::ApplyBlending() const { + if (independant_blend.enabled) { + for (size_t i = 0; i < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets; i++) { + ApplyTargetBlending(i, + independant_blend.enabled != cur_state.independant_blend.enabled); + } + } else { + ApplyGlobalBlending(); + } + if (blend_color.red != cur_state.blend_color.red || + blend_color.green != cur_state.blend_color.green || + blend_color.blue != cur_state.blend_color.blue || + blend_color.alpha != cur_state.blend_color.alpha) { + glBlendColor(blend_color.red, blend_color.green, blend_color.blue, blend_color.alpha); + } +} + void OpenGLState::ApplyLogicOp() const { const bool logic_op_changed = logic_op.enabled != cur_state.logic_op.enabled; if (logic_op_changed) { if (logic_op.enabled) { - ASSERT(!blend.enabled); glEnable(GL_COLOR_LOGIC_OP); } else { glDisable(GL_COLOR_LOGIC_OP); @@ -348,12 +434,6 @@ void OpenGLState::Apply() const { if (draw.program_pipeline != cur_state.draw.program_pipeline) { glBindProgramPipeline(draw.program_pipeline); } - // Viewport - if (viewport.x != cur_state.viewport.x || viewport.y != cur_state.viewport.y || - viewport.width != cur_state.viewport.width || - viewport.height != cur_state.viewport.height) { - glViewport(viewport.x, viewport.y, viewport.width, viewport.height); - } // Clip distance for (std::size_t i = 0; i < clip_distance.size(); ++i) { if (clip_distance[i] != cur_state.clip_distance[i]) { @@ -376,7 +456,8 @@ void OpenGLState::Apply() const { if (point.size != cur_state.point.size) { glPointSize(point.size); } - ApplyScissorTest(); + 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 fe648aff6..a027ca33c 100644 --- a/src/video_core/renderer_opengl/gl_state.h +++ b/src/video_core/renderer_opengl/gl_state.h @@ -46,11 +46,9 @@ public: } cull; struct { - bool test_enabled; // GL_DEPTH_TEST - GLenum test_func; // GL_DEPTH_FUNC - GLboolean write_mask; // GL_DEPTH_WRITEMASK - GLfloat depth_range_near; // GL_DEPTH_RANGE - GLfloat depth_range_far; // GL_DEPTH_RANGE + bool test_enabled; // GL_DEPTH_TEST + GLenum test_func; // GL_DEPTH_FUNC + GLboolean write_mask; // GL_DEPTH_WRITEMASK } depth; struct { @@ -78,22 +76,28 @@ public: } front, back; } stencil; - struct { + struct Blend { bool enabled; // GL_BLEND + bool separate_alpha; // Independent blend enabled GLenum rgb_equation; // GL_BLEND_EQUATION_RGB GLenum a_equation; // GL_BLEND_EQUATION_ALPHA GLenum src_rgb_func; // GL_BLEND_SRC_RGB GLenum dst_rgb_func; // GL_BLEND_DST_RGB GLenum src_a_func; // GL_BLEND_SRC_ALPHA GLenum dst_a_func; // GL_BLEND_DST_ALPHA + }; + std::array blend; - struct { - GLclampf red; - GLclampf green; - GLclampf blue; - GLclampf alpha; - } color; // GL_BLEND_COLOR - } blend; + struct { + bool enabled; + } independant_blend; + + struct { + GLclampf red; + GLclampf green; + GLclampf blue; + GLclampf alpha; + } blend_color; // GL_BLEND_COLOR struct { bool enabled; // GL_LOGIC_OP_MODE @@ -138,6 +142,16 @@ public: GLuint program_pipeline; // GL_PROGRAM_PIPELINE_BINDING } draw; + struct viewport { + GLfloat x; + GLfloat y; + GLfloat width; + GLfloat height; + GLfloat depth_range_near; // GL_DEPTH_RANGE + GLfloat depth_range_far; // GL_DEPTH_RANGE + }; + std::array viewports; + struct { bool enabled; // GL_SCISSOR_TEST GLint x; @@ -146,13 +160,6 @@ public: GLsizei height; } scissor; - struct { - GLint x; - GLint y; - GLsizei width; - GLsizei height; - } viewport; - struct { float size; // GL_POINT_SIZE } point; @@ -194,11 +201,14 @@ private: void ApplyDepth() const; void ApplyPrimitiveRestart() const; void ApplyStencilTest() const; - void ApplyScissorTest() const; + void ApplyViewport() const; + void ApplyTargetBlending(int target, bool force) const; + void ApplyGlobalBlending() const; void ApplyBlending() const; void ApplyLogicOp() const; void ApplyTextures() const; void ApplySamplers() const; + void ApplyScissor() const; }; } // namespace OpenGL