diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_state.cpp')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_state.cpp | 569 |
1 files changed, 0 insertions, 569 deletions
diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp deleted file mode 100644 index 7d3bc1a1f..000000000 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ /dev/null @@ -1,569 +0,0 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <iterator> -#include <glad/glad.h> -#include "common/assert.h" -#include "common/logging/log.h" -#include "common/microprofile.h" -#include "video_core/renderer_opengl/gl_state.h" - -MICROPROFILE_DEFINE(OpenGL_State, "OpenGL", "State Change", MP_RGB(192, 128, 128)); - -namespace OpenGL { - -using Maxwell = Tegra::Engines::Maxwell3D::Regs; - -OpenGLState OpenGLState::cur_state; - -namespace { - -template <typename T> -bool UpdateValue(T& current_value, const T new_value) { - const bool changed = current_value != new_value; - current_value = new_value; - return changed; -} - -template <typename T1, typename T2> -bool UpdateTie(T1 current_value, const T2 new_value) { - const bool changed = current_value != new_value; - current_value = new_value; - return changed; -} - -template <typename T> -std::optional<std::pair<GLuint, GLsizei>> UpdateArray(T& current_values, const T& new_values) { - std::optional<std::size_t> first; - std::size_t last; - for (std::size_t i = 0; i < std::size(current_values); ++i) { - if (!UpdateValue(current_values[i], new_values[i])) { - continue; - } - if (!first) { - first = i; - } - last = i; - } - if (!first) { - return std::nullopt; - } - return std::make_pair(static_cast<GLuint>(*first), static_cast<GLsizei>(last - *first + 1)); -} - -void Enable(GLenum cap, bool enable) { - if (enable) { - glEnable(cap); - } else { - glDisable(cap); - } -} - -void Enable(GLenum cap, GLuint index, bool enable) { - if (enable) { - glEnablei(cap, index); - } else { - glDisablei(cap, index); - } -} - -void Enable(GLenum cap, bool& current_value, bool new_value) { - if (UpdateValue(current_value, new_value)) { - Enable(cap, new_value); - } -} - -void Enable(GLenum cap, GLuint index, bool& current_value, bool new_value) { - if (UpdateValue(current_value, new_value)) { - Enable(cap, index, new_value); - } -} - -} // Anonymous namespace - -OpenGLState::OpenGLState() = default; - -void OpenGLState::SetDefaultViewports() { - viewports.fill(Viewport{}); - - depth_clamp.far_plane = false; - depth_clamp.near_plane = false; -} - -void OpenGLState::ApplyFramebufferState() { - if (UpdateValue(cur_state.draw.read_framebuffer, draw.read_framebuffer)) { - glBindFramebuffer(GL_READ_FRAMEBUFFER, draw.read_framebuffer); - } - if (UpdateValue(cur_state.draw.draw_framebuffer, draw.draw_framebuffer)) { - glBindFramebuffer(GL_DRAW_FRAMEBUFFER, draw.draw_framebuffer); - } -} - -void OpenGLState::ApplyVertexArrayState() { - if (UpdateValue(cur_state.draw.vertex_array, draw.vertex_array)) { - glBindVertexArray(draw.vertex_array); - } -} - -void OpenGLState::ApplyShaderProgram() { - if (UpdateValue(cur_state.draw.shader_program, draw.shader_program)) { - glUseProgram(draw.shader_program); - } -} - -void OpenGLState::ApplyProgramPipeline() { - if (UpdateValue(cur_state.draw.program_pipeline, draw.program_pipeline)) { - glBindProgramPipeline(draw.program_pipeline); - } -} - -void OpenGLState::ApplyClipDistances() { - for (std::size_t i = 0; i < clip_distance.size(); ++i) { - Enable(GL_CLIP_DISTANCE0 + static_cast<GLenum>(i), cur_state.clip_distance[i], - clip_distance[i]); - } -} - -void OpenGLState::ApplyPointSize() { - Enable(GL_PROGRAM_POINT_SIZE, cur_state.point.program_control, point.program_control); - Enable(GL_POINT_SPRITE, cur_state.point.sprite, point.sprite); - if (UpdateValue(cur_state.point.size, point.size)) { - glPointSize(point.size); - } -} - -void OpenGLState::ApplyFragmentColorClamp() { - if (UpdateValue(cur_state.fragment_color_clamp.enabled, fragment_color_clamp.enabled)) { - glClampColor(GL_CLAMP_FRAGMENT_COLOR_ARB, - fragment_color_clamp.enabled ? GL_TRUE : GL_FALSE); - } -} - -void OpenGLState::ApplyMultisample() { - Enable(GL_SAMPLE_ALPHA_TO_COVERAGE, cur_state.multisample_control.alpha_to_coverage, - multisample_control.alpha_to_coverage); - Enable(GL_SAMPLE_ALPHA_TO_ONE, cur_state.multisample_control.alpha_to_one, - multisample_control.alpha_to_one); -} - -void OpenGLState::ApplyDepthClamp() { - if (depth_clamp.far_plane == cur_state.depth_clamp.far_plane && - depth_clamp.near_plane == cur_state.depth_clamp.near_plane) { - return; - } - cur_state.depth_clamp = depth_clamp; - - UNIMPLEMENTED_IF_MSG(depth_clamp.far_plane != depth_clamp.near_plane, - "Unimplemented Depth Clamp Separation!"); - - Enable(GL_DEPTH_CLAMP, depth_clamp.far_plane || depth_clamp.near_plane); -} - -void OpenGLState::ApplySRgb() { - if (cur_state.framebuffer_srgb.enabled == framebuffer_srgb.enabled) - return; - cur_state.framebuffer_srgb.enabled = framebuffer_srgb.enabled; - if (framebuffer_srgb.enabled) { - glEnable(GL_FRAMEBUFFER_SRGB); - } else { - glDisable(GL_FRAMEBUFFER_SRGB); - } -} - -void OpenGLState::ApplyCulling() { - Enable(GL_CULL_FACE, cur_state.cull.enabled, cull.enabled); - - if (UpdateValue(cur_state.cull.mode, cull.mode)) { - glCullFace(cull.mode); - } - - if (UpdateValue(cur_state.cull.front_face, cull.front_face)) { - glFrontFace(cull.front_face); - } -} - -void OpenGLState::ApplyRasterizerDiscard() { - Enable(GL_RASTERIZER_DISCARD, cur_state.rasterizer_discard, rasterizer_discard); -} - -void OpenGLState::ApplyColorMask() { - if (!dirty.color_mask) { - return; - } - dirty.color_mask = false; - - for (std::size_t i = 0; i < Maxwell::NumRenderTargets; ++i) { - const auto& updated = color_mask[i]; - auto& current = cur_state.color_mask[i]; - if (updated.red_enabled != current.red_enabled || - updated.green_enabled != current.green_enabled || - updated.blue_enabled != current.blue_enabled || - updated.alpha_enabled != current.alpha_enabled) { - current = updated; - glColorMaski(static_cast<GLuint>(i), updated.red_enabled, updated.green_enabled, - updated.blue_enabled, updated.alpha_enabled); - } - } -} - -void OpenGLState::ApplyDepth() { - Enable(GL_DEPTH_TEST, cur_state.depth.test_enabled, depth.test_enabled); - - if (cur_state.depth.test_func != depth.test_func) { - cur_state.depth.test_func = depth.test_func; - glDepthFunc(depth.test_func); - } - - if (cur_state.depth.write_mask != depth.write_mask) { - cur_state.depth.write_mask = depth.write_mask; - glDepthMask(depth.write_mask); - } -} - -void OpenGLState::ApplyPrimitiveRestart() { - Enable(GL_PRIMITIVE_RESTART, cur_state.primitive_restart.enabled, primitive_restart.enabled); - - if (cur_state.primitive_restart.index != primitive_restart.index) { - cur_state.primitive_restart.index = primitive_restart.index; - glPrimitiveRestartIndex(primitive_restart.index); - } -} - -void OpenGLState::ApplyStencilTest() { - if (!dirty.stencil_state) { - return; - } - dirty.stencil_state = false; - - Enable(GL_STENCIL_TEST, cur_state.stencil.test_enabled, stencil.test_enabled); - - const auto ConfigStencil = [](GLenum face, const auto& config, auto& current) { - if (current.test_func != config.test_func || current.test_ref != config.test_ref || - current.test_mask != config.test_mask) { - current.test_func = config.test_func; - current.test_ref = config.test_ref; - current.test_mask = config.test_mask; - glStencilFuncSeparate(face, config.test_func, config.test_ref, config.test_mask); - } - if (current.action_depth_fail != config.action_depth_fail || - current.action_depth_pass != config.action_depth_pass || - current.action_stencil_fail != config.action_stencil_fail) { - current.action_depth_fail = config.action_depth_fail; - current.action_depth_pass = config.action_depth_pass; - current.action_stencil_fail = config.action_stencil_fail; - glStencilOpSeparate(face, config.action_stencil_fail, config.action_depth_fail, - config.action_depth_pass); - } - if (current.write_mask != config.write_mask) { - current.write_mask = config.write_mask; - glStencilMaskSeparate(face, config.write_mask); - } - }; - ConfigStencil(GL_FRONT, stencil.front, cur_state.stencil.front); - ConfigStencil(GL_BACK, stencil.back, cur_state.stencil.back); -} - -void OpenGLState::ApplyViewport() { - for (GLuint i = 0; i < static_cast<GLuint>(Maxwell::NumViewports); ++i) { - const auto& updated = viewports[i]; - auto& current = cur_state.viewports[i]; - - if (current.x != updated.x || current.y != updated.y || current.width != updated.width || - current.height != updated.height) { - current.x = updated.x; - current.y = updated.y; - current.width = updated.width; - current.height = updated.height; - glViewportIndexedf(i, static_cast<GLfloat>(updated.x), static_cast<GLfloat>(updated.y), - static_cast<GLfloat>(updated.width), - static_cast<GLfloat>(updated.height)); - } - if (current.depth_range_near != updated.depth_range_near || - current.depth_range_far != updated.depth_range_far) { - current.depth_range_near = updated.depth_range_near; - current.depth_range_far = updated.depth_range_far; - glDepthRangeIndexed(i, updated.depth_range_near, updated.depth_range_far); - } - - Enable(GL_SCISSOR_TEST, i, current.scissor.enabled, updated.scissor.enabled); - - if (current.scissor.x != updated.scissor.x || current.scissor.y != updated.scissor.y || - current.scissor.width != updated.scissor.width || - current.scissor.height != updated.scissor.height) { - current.scissor.x = updated.scissor.x; - current.scissor.y = updated.scissor.y; - current.scissor.width = updated.scissor.width; - current.scissor.height = updated.scissor.height; - glScissorIndexed(i, updated.scissor.x, updated.scissor.y, updated.scissor.width, - updated.scissor.height); - } - } -} - -void OpenGLState::ApplyGlobalBlending() { - const Blend& updated = blend[0]; - Blend& current = cur_state.blend[0]; - - Enable(GL_BLEND, current.enabled, updated.enabled); - - if (current.src_rgb_func != updated.src_rgb_func || - current.dst_rgb_func != updated.dst_rgb_func || current.src_a_func != updated.src_a_func || - current.dst_a_func != updated.dst_a_func) { - current.src_rgb_func = updated.src_rgb_func; - current.dst_rgb_func = updated.dst_rgb_func; - current.src_a_func = updated.src_a_func; - current.dst_a_func = updated.dst_a_func; - glBlendFuncSeparate(updated.src_rgb_func, updated.dst_rgb_func, updated.src_a_func, - updated.dst_a_func); - } - - if (current.rgb_equation != updated.rgb_equation || current.a_equation != updated.a_equation) { - current.rgb_equation = updated.rgb_equation; - current.a_equation = updated.a_equation; - glBlendEquationSeparate(updated.rgb_equation, updated.a_equation); - } -} - -void OpenGLState::ApplyTargetBlending(std::size_t target, bool force) { - const Blend& updated = blend[target]; - Blend& current = cur_state.blend[target]; - - if (current.enabled != updated.enabled || force) { - current.enabled = updated.enabled; - Enable(GL_BLEND, static_cast<GLuint>(target), updated.enabled); - } - - if (UpdateTie(std::tie(current.src_rgb_func, current.dst_rgb_func, current.src_a_func, - current.dst_a_func), - std::tie(updated.src_rgb_func, updated.dst_rgb_func, updated.src_a_func, - updated.dst_a_func))) { - glBlendFuncSeparatei(static_cast<GLuint>(target), updated.src_rgb_func, - updated.dst_rgb_func, updated.src_a_func, updated.dst_a_func); - } - - if (UpdateTie(std::tie(current.rgb_equation, current.a_equation), - std::tie(updated.rgb_equation, updated.a_equation))) { - glBlendEquationSeparatei(static_cast<GLuint>(target), updated.rgb_equation, - updated.a_equation); - } -} - -void OpenGLState::ApplyBlending() { - if (!dirty.blend_state) { - return; - } - dirty.blend_state = false; - - if (independant_blend.enabled) { - const bool force = independant_blend.enabled != cur_state.independant_blend.enabled; - for (std::size_t target = 0; target < Maxwell::NumRenderTargets; ++target) { - ApplyTargetBlending(target, force); - } - } else { - ApplyGlobalBlending(); - } - cur_state.independant_blend.enabled = independant_blend.enabled; - - if (UpdateTie( - std::tie(cur_state.blend_color.red, cur_state.blend_color.green, - cur_state.blend_color.blue, cur_state.blend_color.alpha), - std::tie(blend_color.red, blend_color.green, blend_color.blue, blend_color.alpha))) { - glBlendColor(blend_color.red, blend_color.green, blend_color.blue, blend_color.alpha); - } -} - -void OpenGLState::ApplyLogicOp() { - Enable(GL_COLOR_LOGIC_OP, cur_state.logic_op.enabled, logic_op.enabled); - - if (UpdateValue(cur_state.logic_op.operation, logic_op.operation)) { - glLogicOp(logic_op.operation); - } -} - -void OpenGLState::ApplyPolygonOffset() { - if (!dirty.polygon_offset) { - return; - } - dirty.polygon_offset = false; - - Enable(GL_POLYGON_OFFSET_FILL, cur_state.polygon_offset.fill_enable, - polygon_offset.fill_enable); - Enable(GL_POLYGON_OFFSET_LINE, cur_state.polygon_offset.line_enable, - polygon_offset.line_enable); - Enable(GL_POLYGON_OFFSET_POINT, cur_state.polygon_offset.point_enable, - polygon_offset.point_enable); - - if (UpdateTie(std::tie(cur_state.polygon_offset.factor, cur_state.polygon_offset.units, - cur_state.polygon_offset.clamp), - std::tie(polygon_offset.factor, polygon_offset.units, polygon_offset.clamp))) { - if (GLAD_GL_EXT_polygon_offset_clamp && polygon_offset.clamp != 0) { - glPolygonOffsetClamp(polygon_offset.factor, polygon_offset.units, polygon_offset.clamp); - } else { - UNIMPLEMENTED_IF_MSG(polygon_offset.clamp != 0, - "Unimplemented Depth polygon offset clamp."); - glPolygonOffset(polygon_offset.factor, polygon_offset.units); - } - } -} - -void OpenGLState::ApplyAlphaTest() { - Enable(GL_ALPHA_TEST, cur_state.alpha_test.enabled, alpha_test.enabled); - if (UpdateTie(std::tie(cur_state.alpha_test.func, cur_state.alpha_test.ref), - std::tie(alpha_test.func, alpha_test.ref))) { - glAlphaFunc(alpha_test.func, alpha_test.ref); - } -} - -void OpenGLState::ApplyClipControl() { - if (UpdateTie(std::tie(cur_state.clip_control.origin, cur_state.clip_control.depth_mode), - std::tie(clip_control.origin, clip_control.depth_mode))) { - glClipControl(clip_control.origin, clip_control.depth_mode); - } -} - -void OpenGLState::ApplyRenderBuffer() { - if (cur_state.renderbuffer != renderbuffer) { - cur_state.renderbuffer = renderbuffer; - glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer); - } -} - -void OpenGLState::ApplyTextures() { - const std::size_t size = std::size(textures); - for (std::size_t i = 0; i < size; ++i) { - if (UpdateValue(cur_state.textures[i], textures[i])) { - // BindTextureUnit doesn't support binding null textures, skip those binds. - // TODO(Rodrigo): Stop using null textures - if (textures[i] != 0) { - glBindTextureUnit(static_cast<GLuint>(i), textures[i]); - } - } - } -} - -void OpenGLState::ApplySamplers() { - const std::size_t size = std::size(samplers); - for (std::size_t i = 0; i < size; ++i) { - if (UpdateValue(cur_state.samplers[i], samplers[i])) { - glBindSampler(static_cast<GLuint>(i), samplers[i]); - } - } -} - -void OpenGLState::ApplyImages() { - if (const auto update = UpdateArray(cur_state.images, images)) { - glBindImageTextures(update->first, update->second, images.data() + update->first); - } -} - -void OpenGLState::Apply() { - MICROPROFILE_SCOPE(OpenGL_State); - ApplyFramebufferState(); - ApplyVertexArrayState(); - ApplyShaderProgram(); - ApplyProgramPipeline(); - ApplyClipDistances(); - ApplyPointSize(); - ApplyFragmentColorClamp(); - ApplyMultisample(); - ApplyRasterizerDiscard(); - ApplyColorMask(); - ApplyDepthClamp(); - ApplyViewport(); - ApplyStencilTest(); - ApplySRgb(); - ApplyCulling(); - ApplyDepth(); - ApplyPrimitiveRestart(); - ApplyBlending(); - ApplyLogicOp(); - ApplyTextures(); - ApplySamplers(); - ApplyImages(); - ApplyPolygonOffset(); - ApplyAlphaTest(); - ApplyClipControl(); - ApplyRenderBuffer(); -} - -void OpenGLState::EmulateViewportWithScissor() { - auto& current = viewports[0]; - if (current.scissor.enabled) { - const GLint left = std::max(current.x, current.scissor.x); - const GLint right = - std::max(current.x + current.width, current.scissor.x + current.scissor.width); - const GLint bottom = std::max(current.y, current.scissor.y); - const GLint top = - std::max(current.y + current.height, current.scissor.y + current.scissor.height); - current.scissor.x = std::max(left, 0); - current.scissor.y = std::max(bottom, 0); - current.scissor.width = std::max(right - left, 0); - current.scissor.height = std::max(top - bottom, 0); - } else { - current.scissor.enabled = true; - current.scissor.x = current.x; - current.scissor.y = current.y; - current.scissor.width = current.width; - current.scissor.height = current.height; - } -} - -OpenGLState& OpenGLState::UnbindTexture(GLuint handle) { - for (auto& texture : textures) { - if (texture == handle) { - texture = 0; - } - } - return *this; -} - -OpenGLState& OpenGLState::ResetSampler(GLuint handle) { - for (auto& sampler : samplers) { - if (sampler == handle) { - sampler = 0; - } - } - return *this; -} - -OpenGLState& OpenGLState::ResetProgram(GLuint handle) { - if (draw.shader_program == handle) { - draw.shader_program = 0; - } - return *this; -} - -OpenGLState& OpenGLState::ResetPipeline(GLuint handle) { - if (draw.program_pipeline == handle) { - draw.program_pipeline = 0; - } - return *this; -} - -OpenGLState& OpenGLState::ResetVertexArray(GLuint handle) { - if (draw.vertex_array == handle) { - draw.vertex_array = 0; - } - return *this; -} - -OpenGLState& OpenGLState::ResetFramebuffer(GLuint handle) { - if (draw.read_framebuffer == handle) { - draw.read_framebuffer = 0; - } - if (draw.draw_framebuffer == handle) { - draw.draw_framebuffer = 0; - } - return *this; -} - -OpenGLState& OpenGLState::ResetRenderbuffer(GLuint handle) { - if (renderbuffer == handle) { - renderbuffer = 0; - } - return *this; -} - -} // namespace OpenGL |