rsx/gui: Add a strict mode toggle. Also reorganizes the graphics tab a bit

code cleanup

rpcs3/Emu/RSX/GL/GLGSRender.cpp

@@ -504,6 +504,11 @@ void GLGSRender::on_init_thread()
 		LOG_WARNING(RSX, "High precision Z buffer requested but your GPU does not support GL_ARB_depth_buffer_float. Option ignored.");
 	}
 
+	if (!gl_caps.ARB_texture_barrier_supported && !gl_caps.NV_texture_barrier_supported && !g_cfg.video.strict_rendering_mode)
+	{
+		LOG_WARNING(RSX, "Texture barriers are not supported by your GPU. Feedback loops will have undefined results.");
+	}
+
 	//Use industry standard resource alignment values as defaults
 	m_uniform_buffer_offset_align = 256;
 	m_min_texbuffer_alignment = 256;

rpcs3/Emu/RSX/GL/GLHelpers.h

@@ -79,11 +79,13 @@ namespace gl
 		bool ARB_texture_buffer_supported = false;
 		bool ARB_shader_draw_parameters_supported = false;
 		bool ARB_depth_buffer_float_supported = false;
+		bool ARB_texture_barrier_supported = false;
+		bool NV_texture_barrier_supported = false;
 		bool initialized = false;
 
 		void initialize()
 		{
-			int find_count = 6;
+			int find_count = 8;
 			int ext_count = 0;
 			glGetIntegerv(GL_NUM_EXTENSIONS, &ext_count);
 
@@ -135,6 +137,20 @@ namespace gl
 					find_count--;
 					continue;
 				}
+
+				if (ext_name == "GL_ARB_texture_barrier")
+				{
+					ARB_texture_barrier_supported = true;
+					find_count--;
+					continue;
+				}
+
+				if (ext_name == "GL_NV_texture_barrier")
+				{
+					NV_texture_barrier_supported = true;
+					find_count--;
+					continue;
+				}
 			}
 
 			//Workaround for intel drivers which have terrible capability reporting

rpcs3/Emu/RSX/GL/GLProcTable.h

@@ -204,6 +204,10 @@ OPENGL_PROC(PFNGLTEXSTORAGE1DPROC, TexStorage1D);
 OPENGL_PROC(PFNGLTEXSTORAGE2DPROC, TexStorage2D);
 OPENGL_PROC(PFNGLTEXSTORAGE3DPROC, TexStorage3D);
 OPENGL_PROC(PFNGLTEXSUBIMAGE3DPROC, TexSubImage3D);
+
+//Texture_Barrier
+OPENGL_PROC(PFNGLTEXTUREBARRIERPROC, TextureBarrier);
+OPENGL_PROC(PFNGLTEXTUREBARRIERNVPROC, TextureBarrierNV);
 //...
 
 #if !defined(__GNUG__) || defined(__MINGW32__)

rpcs3/Emu/RSX/GL/GLTextureCache.h

@@ -11,10 +11,10 @@
 #include <condition_variable>
 #include <chrono>
 
+#include "Emu/System.h"
 #include "GLRenderTargets.h"
 #include "../Common/TextureUtils.h"
 #include "../../Memory/vm.h"
-
 #include "../rsx_utils.h"
 
 class GLGSRender;
@@ -666,13 +666,28 @@ namespace gl
 			gl::render_target *texptr = nullptr;
 			if (texptr = m_rtts.get_texture_from_render_target_if_applicable(texaddr))
 			{
-				for (auto tex : m_rtts.m_bound_render_targets)
+				for (const auto& tex : m_rtts.m_bound_render_targets)
 				{
 					if (std::get<0>(tex) == texaddr)
 					{
-						LOG_WARNING(RSX, "Attempting to sample a currently bound render target @ 0x%x", texaddr);
-						create_temporary_subresource(texptr->id(), (GLenum)texptr->get_compatible_internal_format(), 0, 0, texptr->width(), texptr->height());
-						return;
+						if (g_cfg.video.strict_rendering_mode)
+						{
+							LOG_WARNING(RSX, "Attempting to sample a currently bound render target @ 0x%x", texaddr);
+							create_temporary_subresource(texptr->id(), (GLenum)texptr->get_compatible_internal_format(), 0, 0, texptr->width(), texptr->height());
+							return;
+						}
+						else
+						{
+							//issue a texture barrier to ensure previous writes are visible
+							auto &caps = gl::get_driver_caps();
+
+							if (caps.ARB_texture_barrier_supported)
+								glTextureBarrier();
+							else if (caps.NV_texture_barrier_supported)
+								glTextureBarrierNV();
+
+							break;
+						}
 					}
 				}
 
@@ -684,9 +699,22 @@ namespace gl
 			{
 				if (texaddr == std::get<0>(m_rtts.m_bound_depth_stencil))
 				{
-					LOG_WARNING(RSX, "Attempting to sample a currently bound depth surface @ 0x%x", texaddr);
-					create_temporary_subresource(texptr->id(), (GLenum)texptr->get_compatible_internal_format(), 0, 0, texptr->width(), texptr->height());
-					return;
+					if (g_cfg.video.strict_rendering_mode)
+					{
+						LOG_WARNING(RSX, "Attempting to sample a currently bound depth surface @ 0x%x", texaddr);
+						create_temporary_subresource(texptr->id(), (GLenum)texptr->get_compatible_internal_format(), 0, 0, texptr->width(), texptr->height());
+						return;
+					}
+					else
+					{
+						//issue a texture barrier to ensure previous writes are visible
+						auto &caps = gl::get_driver_caps();
+
+						if (caps.ARB_texture_barrier_supported)
+							glTextureBarrier();
+						else if (caps.NV_texture_barrier_supported)
+							glTextureBarrierNV();
+					}
 				}
 
 				texptr->bind();

rpcs3/Emu/RSX/VK/VKTextureCache.h

@@ -2,6 +2,7 @@
 #include "stdafx.h"
 #include "VKRenderTargets.h"
 #include "VKGSRender.h"
+#include "Emu/System.h"
 #include "../Common/TextureUtils.h"
 #include "../rsx_utils.h"
 
@@ -473,12 +474,15 @@ namespace vk
 			vk::image *rtt_texture = nullptr;
 			if (rtt_texture = m_rtts.get_texture_from_render_target_if_applicable(texaddr))
 			{
-				for (auto tex : m_rtts.m_bound_render_targets)
+				if (g_cfg.video.strict_rendering_mode)
 				{
-					if (std::get<0>(tex) == texaddr)
+					for (const auto& tex : m_rtts.m_bound_render_targets)
 					{
-						LOG_WARNING(RSX, "Attempting to sample a currently bound render target @ 0x%x", texaddr);
-						return create_temporary_subresource(cmd, rtt_texture, 0, 0, rtt_texture->width(), rtt_texture->height(), memory_type_mapping);
+						if (std::get<0>(tex) == texaddr)
+						{
+							LOG_WARNING(RSX, "Attempting to sample a currently bound render target @ 0x%x", texaddr);
+							return create_temporary_subresource(cmd, rtt_texture, 0, 0, rtt_texture->width(), rtt_texture->height(), memory_type_mapping);
+						}
 					}
 				}
 
@@ -490,10 +494,13 @@ namespace vk
 
 			if (rtt_texture = m_rtts.get_texture_from_depth_stencil_if_applicable(texaddr))
 			{
-				if (std::get<0>(m_rtts.m_bound_depth_stencil) == texaddr)
+				if (g_cfg.video.strict_rendering_mode)
 				{
-					LOG_WARNING(RSX, "Attempting to sample a currently bound depth surface @ 0x%x", texaddr);
-					return create_temporary_subresource(cmd, rtt_texture, 0, 0, rtt_texture->width(), rtt_texture->height(), memory_type_mapping);
+					if (std::get<0>(m_rtts.m_bound_depth_stencil) == texaddr)
+					{
+						LOG_WARNING(RSX, "Attempting to sample a currently bound depth surface @ 0x%x", texaddr);
+						return create_temporary_subresource(cmd, rtt_texture, 0, 0, rtt_texture->width(), rtt_texture->height(), memory_type_mapping);
+					}
 				}
 
 				m_temporary_image_view.push_back(std::make_unique<vk::image_view>(*vk::get_current_renderer(), rtt_texture->value, VK_IMAGE_VIEW_TYPE_2D, rtt_texture->info.format,

rpcs3/Emu/System.h

@@ -307,10 +307,11 @@ struct cfg_root : cfg::node
 		cfg::_bool vsync{this, "VSync"};
 		cfg::_bool debug_output{this, "Debug output"};
 		cfg::_bool overlay{this, "Debug overlay"};
-		cfg::_bool gl_legacy_buffers{this, "Use Legacy OpenGL Buffers (Debug)"};
+		cfg::_bool gl_legacy_buffers{this, "Use Legacy OpenGL Buffers"};
 		cfg::_bool use_gpu_texture_scaling{this, "Use GPU texture scaling", true};
 		cfg::_bool force_high_precision_z_buffer{this, "Force High Precision Z buffer"};
 		cfg::_bool invalidate_surface_cache_every_frame{this, "Invalidate Cache Every Frame", true};
+		cfg::_bool strict_rendering_mode{this, "Strict Rendering Mode"};
 
 		struct node_d3d12 : cfg::node
 		{

rpcs3/rpcs3qt/emu_settings.h

@@ -65,6 +65,7 @@ public:
 		VulkanAdapter,
 		ForceHighpZ,
 		AutoInvalidateCache,
+		StrictRenderingMode,
 
 		// Audio
 		AudioRenderer,
@@ -150,12 +151,13 @@ private:
 		{ VSync,			{ "Video", "VSync"}},
 		{ DebugOutput,		{ "Video", "Debug output"}},
 		{ DebugOverlay,		{ "Video", "Debug overlay"}},
-		{ LegacyBuffers,	{ "Video", "Use Legacy OpenGL Buffers (Debug)"}},
+		{ LegacyBuffers,	{ "Video", "Use Legacy OpenGL Buffers"}},
 		{ GPUTextureScaling,{ "Video", "Use GPU texture scaling"}},
 		{ ForceHighpZ,      { "Video", "Force High Precision Z buffer"}},
-		{ AutoInvalidateCache, {"Video", "Invalidate Cache Every Frame"}},
-		{ D3D12Adapter,		{ "Video", "D3D12", "Adapter"}},
-		{ VulkanAdapter,		{ "Video", "Vulkan", "Adapter"}},
+		{ AutoInvalidateCache, { "Video", "Invalidate Cache Every Frame"}},
+		{ StrictRenderingMode, { "Video", "Strict Rendering Mode"}},
+		{ D3D12Adapter,        { "Video", "D3D12", "Adapter"}},
+		{ VulkanAdapter,       { "Video", "Vulkan", "Adapter"}},
 
 		// Audio
 		{ AudioRenderer,	{ "Audio", "Renderer"}},

rpcs3/rpcs3qt/graphics_tab.cpp

@@ -237,6 +237,7 @@ graphics_tab::graphics_tab(std::shared_ptr<emu_settings> xSettings, Render_Creat
 	QCheckBox *gpuTextureScaling = xemu_settings->CreateEnhancedCheckBox(emu_settings::GPUTextureScaling, this);
 	QCheckBox *forceHighpZ = xemu_settings->CreateEnhancedCheckBox(emu_settings::ForceHighpZ, this);
 	QCheckBox *autoInvalidateCache = xemu_settings->CreateEnhancedCheckBox(emu_settings::AutoInvalidateCache, this);
+	QCheckBox *scrictModeRendering = xemu_settings->CreateEnhancedCheckBox(emu_settings::StrictRenderingMode, this);
 
 	// Combobox Part
 	QHBoxLayout *hbox1 = new QHBoxLayout();
@@ -257,28 +258,47 @@ graphics_tab::graphics_tab(std::shared_ptr<emu_settings> xSettings, Render_Creat
 	hbox1->addLayout(vbox12);
 
 	// Checkbox Part
-	QHBoxLayout *hbox2 = new QHBoxLayout();
+	QGroupBox *mainOptions = new QGroupBox(tr("Main Options"));
+	QHBoxLayout *hbox2 = new QHBoxLayout();	//main options
 	QVBoxLayout *vbox21 = new QVBoxLayout();
 	vbox21->addWidget(dumpColor);
 	vbox21->addWidget(readColor);
 	vbox21->addWidget(dumpDepth);
 	vbox21->addWidget(readDepth);
-	vbox21->addWidget(glLegacyBuffers);
-	vbox21->addWidget(autoInvalidateCache);
 	QVBoxLayout *vbox22 = new QVBoxLayout();
-	vbox22->addWidget(debugOutput);
-	vbox22->addWidget(debugOverlay);
-	vbox22->addWidget(logProg);
 	vbox22->addWidget(vsync);
+	vbox22->addWidget(autoInvalidateCache);
 	vbox22->addWidget(gpuTextureScaling);
-	vbox22->addWidget(forceHighpZ);
+	vbox22->addSpacing(20);
+
 	hbox2->addLayout(vbox21);
 	hbox2->addLayout(vbox22);
 
+	QGroupBox *debugOptions = new QGroupBox(tr("Debugging Options"));
+	QHBoxLayout *hbox3 = new QHBoxLayout();
+	QBoxLayout *vbox31 = new QVBoxLayout();
+	vbox31->addWidget(glLegacyBuffers);
+	vbox31->addWidget(scrictModeRendering);
+	vbox31->addWidget(forceHighpZ);
+	QVBoxLayout *vbox32 = new QVBoxLayout();
+	vbox32->addWidget(debugOutput);
+	vbox32->addWidget(debugOverlay);
+	vbox32->addWidget(logProg);
+
+	hbox3->addLayout(vbox31);
+	hbox3->addLayout(vbox32);
+
+	mainOptions->setLayout(hbox2);
+	debugOptions->setLayout(hbox3);
+
+	QVBoxLayout *options_container = new QVBoxLayout();
+	options_container->addWidget(mainOptions);
+	options_container->addWidget(debugOptions);
+
 	QVBoxLayout *vbox = new QVBoxLayout();
 	vbox->addLayout(hbox1);
 	vbox->addSpacing(10);
-	vbox->addLayout(hbox2);
+	vbox->addLayout(options_container);
 	vbox->addStretch();
 	setLayout(vbox);