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OpenGL: Implement FXAA

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This commit is contained in:
Marshall Mohror 2021-10-20 18:36:06 -05:00 • committed by Fernando Sahmkow
parent 74e39ed6ee
commit 48cf376462
6 changed files with 194 additions and 35 deletions
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2
src/video_core/renderer_opengl/gl_resource_manager.cpp
View file

@ -166,7 +166,7 @@ void OGLFramebuffer::Create() {
return;
MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
glGenFramebuffers(1, &handle);
glCreateFramebuffers(1, &handle);
}
void OGLFramebuffer::Release() {

109
src/video_core/renderer_opengl/renderer_opengl.cpp
View file

@ -21,6 +21,8 @@
#include "core/memory.h"
#include "core/perf_stats.h"
#include "core/telemetry_session.h"
#include "video_core/host_shaders/fxaa_frag.h"
#include "video_core/host_shaders/fxaa_vert.h"
#include "video_core/host_shaders/opengl_present_frag.h"
#include "video_core/host_shaders/opengl_present_vert.h"
#include "video_core/host_shaders/present_bicubic_frag.h"
@ -254,6 +256,8 @@ void RendererOpenGL::LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color
void RendererOpenGL::InitOpenGLObjects() {
// Create shader programs
fxaa_vertex = CreateProgram(HostShaders::FXAA_VERT, GL_VERTEX_SHADER);
fxaa_fragment = CreateProgram(HostShaders::FXAA_FRAG, GL_FRAGMENT_SHADER);
present_vertex = CreateProgram(HostShaders::OPENGL_PRESENT_VERT, GL_VERTEX_SHADER);
present_bilinear_fragment = CreateProgram(HostShaders::OPENGL_PRESENT_FRAG, GL_FRAGMENT_SHADER);
present_bicubic_fragment = CreateProgram(HostShaders::PRESENT_BICUBIC_FRAG, GL_FRAGMENT_SHADER);
@ -287,6 +291,8 @@ void RendererOpenGL::InitOpenGLObjects() {
// Clear screen to black
LoadColorToActiveGLTexture(0, 0, 0, 0, screen_info.texture);
fxaa_framebuffer.Create();
}
void RendererOpenGL::AddTelemetryFields() {
@ -338,14 +344,83 @@ void RendererOpenGL::ConfigureFramebufferTexture(TextureInfo& texture,
texture.resource.Release();
texture.resource.Create(GL_TEXTURE_2D);
glTextureStorage2D(texture.resource.handle, 1, internal_format, texture.width, texture.height);
fxaa_texture.Release();
fxaa_texture.Create(GL_TEXTURE_2D);
glTextureStorage2D(fxaa_texture.handle, 1, GL_RGBA16F, texture.width, texture.height);
glNamedFramebufferTexture(fxaa_framebuffer.handle, GL_COLOR_ATTACHMENT0, fxaa_texture.handle,
0);
}
void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
// TODO: Signal state tracker about these changes
state_tracker.NotifyScreenDrawVertexArray();
state_tracker.NotifyPolygonModes();
state_tracker.NotifyViewport0();
state_tracker.NotifyScissor0();
state_tracker.NotifyColorMask(0);
state_tracker.NotifyBlend0();
state_tracker.NotifyFramebuffer();
state_tracker.NotifyFrontFace();
state_tracker.NotifyCullTest();
state_tracker.NotifyDepthTest();
state_tracker.NotifyStencilTest();
state_tracker.NotifyPolygonOffset();
state_tracker.NotifyRasterizeEnable();
state_tracker.NotifyFramebufferSRGB();
state_tracker.NotifyLogicOp();
state_tracker.NotifyClipControl();
state_tracker.NotifyAlphaTest();
state_tracker.ClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
// Update background color before drawing
glClearColor(Settings::values.bg_red.GetValue() / 255.0f,
Settings::values.bg_green.GetValue() / 255.0f,
Settings::values.bg_blue.GetValue() / 255.0f, 1.0f);
glEnable(GL_CULL_FACE);
glDisable(GL_COLOR_LOGIC_OP);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glDisable(GL_POLYGON_OFFSET_FILL);
glDisable(GL_RASTERIZER_DISCARD);
glDisable(GL_ALPHA_TEST);
glDisablei(GL_BLEND, 0);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glCullFace(GL_BACK);
glFrontFace(GL_CW);
glColorMaski(0, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glBindTextureUnit(0, screen_info.display_texture);
if (Settings::values.anti_aliasing.GetValue() == Settings::AntiAliasing::Fxaa) {
program_manager.BindPresentPrograms(fxaa_vertex.handle, fxaa_fragment.handle);
glEnablei(GL_SCISSOR_TEST, 0);
glScissorIndexed(0, 0, 0,
framebuffer_crop_rect.GetWidth() != 0 ? framebuffer_crop_rect.GetWidth()
: screen_info.texture.width,
framebuffer_crop_rect.GetHeight() != 0 ? framebuffer_crop_rect.GetHeight()
: screen_info.texture.height);
glViewportIndexedf(0, 0.0f, 0.0f, static_cast<GLfloat>(screen_info.texture.width),
static_cast<GLfloat>(screen_info.texture.height));
glDepthRangeIndexed(0, 0.0, 0.0);
glBindSampler(0, present_sampler.handle);
GLint old_read_fb;
GLint old_draw_fb;
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &old_read_fb);
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &old_draw_fb);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fxaa_framebuffer.handle);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindFramebuffer(GL_READ_FRAMEBUFFER, old_read_fb);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, old_draw_fb);
glBindTextureUnit(0, fxaa_texture.handle);
}
// Set projection matrix
const std::array ortho_matrix =
MakeOrthographicMatrix(static_cast<float>(layout.width), static_cast<float>(layout.height));
@ -422,47 +497,14 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
};
glNamedBufferSubData(vertex_buffer.handle, 0, sizeof(vertices), std::data(vertices));
// TODO: Signal state tracker about these changes
state_tracker.NotifyScreenDrawVertexArray();
state_tracker.NotifyPolygonModes();
state_tracker.NotifyViewport0();
state_tracker.NotifyScissor0();
state_tracker.NotifyColorMask(0);
state_tracker.NotifyBlend0();
state_tracker.NotifyFramebuffer();
state_tracker.NotifyFrontFace();
state_tracker.NotifyCullTest();
state_tracker.NotifyDepthTest();
state_tracker.NotifyStencilTest();
state_tracker.NotifyPolygonOffset();
state_tracker.NotifyRasterizeEnable();
state_tracker.NotifyFramebufferSRGB();
state_tracker.NotifyLogicOp();
state_tracker.NotifyClipControl();
state_tracker.NotifyAlphaTest();
state_tracker.ClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
glEnable(GL_CULL_FACE);
if (screen_info.display_srgb) {
glEnable(GL_FRAMEBUFFER_SRGB);
} else {
glDisable(GL_FRAMEBUFFER_SRGB);
}
glDisable(GL_COLOR_LOGIC_OP);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glDisable(GL_POLYGON_OFFSET_FILL);
glDisable(GL_RASTERIZER_DISCARD);
glDisable(GL_ALPHA_TEST);
glDisablei(GL_BLEND, 0);
glDisablei(GL_SCISSOR_TEST, 0);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glCullFace(GL_BACK);
glFrontFace(GL_CW);
glColorMaski(0, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glViewportIndexedf(0, 0.0f, 0.0f, static_cast<GLfloat>(layout.width),
static_cast<GLfloat>(layout.height));
glDepthRangeIndexed(0, 0.0, 0.0);
glEnableVertexAttribArray(PositionLocation);
glEnableVertexAttribArray(TexCoordLocation);
@ -482,7 +524,6 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
glBindVertexBuffer(0, vertex_buffer.handle, 0, sizeof(ScreenRectVertex));
}
glBindTextureUnit(0, screen_info.display_texture);
if (Settings::values.scaling_filter.GetValue() != Settings::ScalingFilter::NearestNeighbor) {
glBindSampler(0, present_sampler.handle);
} else {

4
src/video_core/renderer_opengl/renderer_opengl.h
View file

@ -111,6 +111,8 @@ private:
OGLSampler present_sampler;
OGLSampler present_sampler_nn;
OGLBuffer vertex_buffer;
OGLProgram fxaa_vertex;
OGLProgram fxaa_fragment;
OGLProgram present_vertex;
OGLProgram present_bilinear_fragment;
OGLProgram present_bicubic_fragment;
@ -123,6 +125,8 @@ private:
/// Display information for Switch screen
ScreenInfo screen_info;
OGLTexture fxaa_texture;
OGLFramebuffer fxaa_framebuffer;
/// OpenGL framebuffer data
std::vector<u8> gl_framebuffer_data;