diff options
Diffstat (limited to 'src/video_core/renderer_opengl/present/layer.cpp')
-rw-r--r-- | src/video_core/renderer_opengl/present/layer.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/present/layer.cpp b/src/video_core/renderer_opengl/present/layer.cpp new file mode 100644 index 000000000..8643e07c6 --- /dev/null +++ b/src/video_core/renderer_opengl/present/layer.cpp @@ -0,0 +1,215 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "video_core/framebuffer_config.h" +#include "video_core/renderer_opengl/gl_blit_screen.h" +#include "video_core/renderer_opengl/gl_rasterizer.h" +#include "video_core/renderer_opengl/present/fsr.h" +#include "video_core/renderer_opengl/present/fxaa.h" +#include "video_core/renderer_opengl/present/layer.h" +#include "video_core/renderer_opengl/present/present_uniforms.h" +#include "video_core/renderer_opengl/present/smaa.h" +#include "video_core/surface.h" +#include "video_core/textures/decoders.h" + +namespace OpenGL { + +Layer::Layer(RasterizerOpenGL& rasterizer_, Tegra::MaxwellDeviceMemoryManager& device_memory_) + : rasterizer(rasterizer_), device_memory(device_memory_) { + // Allocate textures for the screen + framebuffer_texture.resource.Create(GL_TEXTURE_2D); + + const GLuint texture = framebuffer_texture.resource.handle; + glTextureStorage2D(texture, 1, GL_RGBA8, 1, 1); + + // Clear screen to black + const u8 framebuffer_data[4] = {0, 0, 0, 0}; + glClearTexImage(framebuffer_texture.resource.handle, 0, GL_RGBA, GL_UNSIGNED_BYTE, + framebuffer_data); +} + +Layer::~Layer() = default; + +GLuint Layer::ConfigureDraw(std::array<GLfloat, 3 * 2>& out_matrix, + std::array<ScreenRectVertex, 4>& out_vertices, + ProgramManager& program_manager, + const Tegra::FramebufferConfig& framebuffer, + const Layout::FramebufferLayout& layout) { + FramebufferTextureInfo info = PrepareRenderTarget(framebuffer); + auto crop = Tegra::NormalizeCrop(framebuffer, info.width, info.height); + GLuint texture = info.display_texture; + + auto anti_aliasing = Settings::values.anti_aliasing.GetValue(); + if (anti_aliasing != Settings::AntiAliasing::None) { + glEnablei(GL_SCISSOR_TEST, 0); + auto viewport_width = Settings::values.resolution_info.ScaleUp(framebuffer_texture.width); + auto viewport_height = Settings::values.resolution_info.ScaleUp(framebuffer_texture.height); + + glScissorIndexed(0, 0, 0, viewport_width, viewport_height); + glViewportIndexedf(0, 0.0f, 0.0f, static_cast<GLfloat>(viewport_width), + static_cast<GLfloat>(viewport_height)); + + switch (anti_aliasing) { + case Settings::AntiAliasing::Fxaa: + CreateFXAA(); + texture = fxaa->Draw(program_manager, info.display_texture); + break; + case Settings::AntiAliasing::Smaa: + default: + CreateSMAA(); + texture = smaa->Draw(program_manager, info.display_texture); + break; + } + } + + glDisablei(GL_SCISSOR_TEST, 0); + + if (Settings::values.scaling_filter.GetValue() == Settings::ScalingFilter::Fsr) { + if (!fsr || fsr->NeedsRecreation(layout.screen)) { + fsr = std::make_unique<FSR>(layout.screen.GetWidth(), layout.screen.GetHeight()); + } + + texture = fsr->Draw(program_manager, texture, info.scaled_width, info.scaled_height, crop); + crop = {0, 0, 1, 1}; + } + + out_matrix = + MakeOrthographicMatrix(static_cast<float>(layout.width), static_cast<float>(layout.height)); + + // Map the coordinates to the screen. + const auto& screen = layout.screen; + const auto x = screen.left; + const auto y = screen.top; + const auto w = screen.GetWidth(); + const auto h = screen.GetHeight(); + + out_vertices[0] = ScreenRectVertex(x, y, crop.left, crop.top); + out_vertices[1] = ScreenRectVertex(x + w, y, crop.right, crop.top); + out_vertices[2] = ScreenRectVertex(x, y + h, crop.left, crop.bottom); + out_vertices[3] = ScreenRectVertex(x + w, y + h, crop.right, crop.bottom); + + return texture; +} + +FramebufferTextureInfo Layer::PrepareRenderTarget(const Tegra::FramebufferConfig& framebuffer) { + // If framebuffer is provided, reload it from memory to a texture + if (framebuffer_texture.width != static_cast<GLsizei>(framebuffer.width) || + framebuffer_texture.height != static_cast<GLsizei>(framebuffer.height) || + framebuffer_texture.pixel_format != framebuffer.pixel_format || + gl_framebuffer_data.empty()) { + // Reallocate texture if the framebuffer size has changed. + // This is expected to not happen very often and hence should not be a + // performance problem. + ConfigureFramebufferTexture(framebuffer); + } + + // Load the framebuffer from memory if needed + return LoadFBToScreenInfo(framebuffer); +} + +FramebufferTextureInfo Layer::LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer) { + const VAddr framebuffer_addr{framebuffer.address + framebuffer.offset}; + const auto accelerated_info = + rasterizer.AccelerateDisplay(framebuffer, framebuffer_addr, framebuffer.stride); + if (accelerated_info) { + return *accelerated_info; + } + + // Reset the screen info's display texture to its own permanent texture + FramebufferTextureInfo info{}; + info.display_texture = framebuffer_texture.resource.handle; + info.width = framebuffer.width; + info.height = framebuffer.height; + info.scaled_width = framebuffer.width; + info.scaled_height = framebuffer.height; + + // TODO(Rodrigo): Read this from HLE + constexpr u32 block_height_log2 = 4; + const auto pixel_format{ + VideoCore::Surface::PixelFormatFromGPUPixelFormat(framebuffer.pixel_format)}; + const u32 bytes_per_pixel{VideoCore::Surface::BytesPerBlock(pixel_format)}; + const u64 size_in_bytes{Tegra::Texture::CalculateSize( + true, bytes_per_pixel, framebuffer.stride, framebuffer.height, 1, block_height_log2, 0)}; + const u8* const host_ptr{device_memory.GetPointer<u8>(framebuffer_addr)}; + const std::span<const u8> input_data(host_ptr, size_in_bytes); + Tegra::Texture::UnswizzleTexture(gl_framebuffer_data, input_data, bytes_per_pixel, + framebuffer.width, framebuffer.height, 1, block_height_log2, + 0); + + glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); + glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast<GLint>(framebuffer.stride)); + + // Update existing texture + // TODO: Test what happens on hardware when you change the framebuffer dimensions so that + // they differ from the LCD resolution. + // TODO: Applications could theoretically crash yuzu here by specifying too large + // framebuffer sizes. We should make sure that this cannot happen. + glTextureSubImage2D(framebuffer_texture.resource.handle, 0, 0, 0, framebuffer.width, + framebuffer.height, framebuffer_texture.gl_format, + framebuffer_texture.gl_type, gl_framebuffer_data.data()); + + glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); + + return info; +} + +void Layer::ConfigureFramebufferTexture(const Tegra::FramebufferConfig& framebuffer) { + framebuffer_texture.width = framebuffer.width; + framebuffer_texture.height = framebuffer.height; + framebuffer_texture.pixel_format = framebuffer.pixel_format; + + const auto pixel_format{ + VideoCore::Surface::PixelFormatFromGPUPixelFormat(framebuffer.pixel_format)}; + const u32 bytes_per_pixel{VideoCore::Surface::BytesPerBlock(pixel_format)}; + gl_framebuffer_data.resize(framebuffer_texture.width * framebuffer_texture.height * + bytes_per_pixel); + + GLint internal_format; + switch (framebuffer.pixel_format) { + case Service::android::PixelFormat::Rgba8888: + internal_format = GL_RGBA8; + framebuffer_texture.gl_format = GL_RGBA; + framebuffer_texture.gl_type = GL_UNSIGNED_INT_8_8_8_8_REV; + break; + case Service::android::PixelFormat::Rgb565: + internal_format = GL_RGB565; + framebuffer_texture.gl_format = GL_RGB; + framebuffer_texture.gl_type = GL_UNSIGNED_SHORT_5_6_5; + break; + default: + internal_format = GL_RGBA8; + framebuffer_texture.gl_format = GL_RGBA; + framebuffer_texture.gl_type = GL_UNSIGNED_INT_8_8_8_8_REV; + // UNIMPLEMENTED_MSG("Unknown framebuffer pixel format: {}", + // static_cast<u32>(framebuffer.pixel_format)); + break; + } + + framebuffer_texture.resource.Release(); + framebuffer_texture.resource.Create(GL_TEXTURE_2D); + glTextureStorage2D(framebuffer_texture.resource.handle, 1, internal_format, + framebuffer_texture.width, framebuffer_texture.height); + + fxaa.reset(); + smaa.reset(); +} + +void Layer::CreateFXAA() { + smaa.reset(); + if (!fxaa) { + fxaa = std::make_unique<FXAA>( + Settings::values.resolution_info.ScaleUp(framebuffer_texture.width), + Settings::values.resolution_info.ScaleUp(framebuffer_texture.height)); + } +} + +void Layer::CreateSMAA() { + fxaa.reset(); + if (!smaa) { + smaa = std::make_unique<SMAA>( + Settings::values.resolution_info.ScaleUp(framebuffer_texture.width), + Settings::values.resolution_info.ScaleUp(framebuffer_texture.height)); + } +} + +} // namespace OpenGL |