gl: Add some debug visualization to internally verify consistency

RPCS3 · Jun 5, 2021 · 5b46ea3 · 5b46ea3
1 parent 18408d2
commit 5b46ea3
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Showing 4 changed files with 52 additions and 0 deletions.
diff --git a/rpcs3/Emu/RSX/GL/GLGSRender.cpp b/rpcs3/Emu/RSX/GL/GLGSRender.cpp
@@ -359,6 +359,8 @@ void GLGSRender::on_exit()
 		gl::g_typeless_transfer_buffer.remove();
 	}
 
+	gl::debug::g_vis_texture.reset(); // TODO
+
 	gl::destroy_pipe_compiler();
 
 	m_prog_buffer.clear();

diff --git a/rpcs3/Emu/RSX/GL/GLPresent.cpp b/rpcs3/Emu/RSX/GL/GLPresent.cpp
@@ -4,6 +4,22 @@
 
 LOG_CHANNEL(screenshot_log, "SCREENSHOT");
 
+namespace gl
+{
+	namespace debug
+	{
+		std::unique_ptr<texture> g_vis_texture;
+
+		void set_vis_texture(texture* visual)
+		{
+			const auto target = static_cast<GLenum>(visual->get_target());
+			const auto ifmt = static_cast<GLenum>(visual->get_internal_format());
+			g_vis_texture.reset(new texture(target, visual->width(), visual->height(), 1, 1, ifmt, visual->format_class()));
+			glCopyImageSubData(visual->id(), target, 0, 0, 0, 0, g_vis_texture->id(), target, 0, 0, 0, 0, visual->width(), visual->height(), 1);
+		}
+	}
+}
+
 gl::texture* GLGSRender::get_present_source(gl::present_surface_info* info, const rsx::avconf& avconfig)
 {
 	gl::texture* image = nullptr;
@@ -334,6 +350,30 @@ void GLGSRender::flip(const rsx::display_flip_info_t& info)
 		m_text_printer.print_text(4, 180, width, height, fmt::format("Texture uploads: %15u (%u from CPU - %02u%%)", num_texture_upload, num_texture_upload_miss, texture_upload_miss_ratio));
 	}
 
+	if (gl::debug::g_vis_texture)
+	{
+		// Optionally renders a single debug texture to framebuffer.
+		// Only programmatic access provided at the moment.
+		// TODO: Migrate to use overlay system. (kd-11)
+		gl::fbo m_vis_buffer;
+		m_vis_buffer.create();
+		m_vis_buffer.bind();
+		m_vis_buffer.color = gl::debug::g_vis_texture->id();
+		m_vis_buffer.read_buffer(m_vis_buffer.color);
+		m_vis_buffer.draw_buffer(m_vis_buffer.color);
+
+		const u32 vis_width = 320;
+		const u32 vis_height = 240;
+		areai display_view = areai(aspect_ratio).flipped_vertical();
+		display_view.x1 = display_view.x2 - vis_width;
+		display_view.y1 = vis_height;
+
+		// Blit
+		const auto src_region = areau{ 0u, 0u, gl::debug::g_vis_texture->width(), gl::debug::g_vis_texture->height() };
+		m_vis_buffer.blit(gl::screen, static_cast<areai>(src_region), display_view, gl::buffers::color, gl::filter::linear);
+		m_vis_buffer.remove();
+	}
+
 	m_frame->flip(m_context);
 	rsx::thread::flip(info);
 

diff --git a/rpcs3/Emu/RSX/GL/GLTexture.cpp b/rpcs3/Emu/RSX/GL/GLTexture.cpp
@@ -10,6 +10,11 @@
 
 namespace gl
 {
+	namespace debug
+	{
+		extern void set_vis_texture(texture*);
+	}
+
 	buffer g_typeless_transfer_buffer;
 
 	GLenum get_target(rsx::texture_dimension_extended type)

diff --git a/rpcs3/Emu/RSX/GL/GLTexture.h b/rpcs3/Emu/RSX/GL/GLTexture.h
@@ -119,5 +119,10 @@ namespace gl
 		void apply_defaults(GLenum default_filter = GL_NEAREST);
 	};
 
+	namespace debug
+	{
+		extern std::unique_ptr<texture> g_vis_texture;
+	}
+
 	extern buffer g_typeless_transfer_buffer;
 }