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Added support for rotating the application screen contents 0, 90, 180 or 270 degrees.

Browse source 
Also improved post processing shader rendering when running in vertical orientation.
This commit is contained in:
Leon Styhre 2023-02-06 23:38:35 +01:00
parent b3c997600c
commit b33c7603bb
13 changed files with 304 additions and 123 deletions
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16
es-app/src/MediaViewer.cpp
View file

@ -71,21 +71,21 @@ void MediaViewer::render(const glm::mat4& /*parentTrans*/)
shaders = Renderer::Shader::SCANLINES;
if (Settings::getInstance()->getBool("MediaViewerVideoBlur")) {
shaders |= Renderer::Shader::BLUR_HORIZONTAL;
float heightModifier {Renderer::getScreenHeightModifier()};
const float resolutionModifier {mRenderer->getScreenResolutionModifier()};
// clang-format off
if (heightModifier < 1)
if (resolutionModifier < 1)
videoParameters.blurPasses = 2; // Below 1080
else if (heightModifier >= 4)
else if (resolutionModifier >= 4)
videoParameters.blurPasses = 12; // 8K
else if (heightModifier >= 2.9)
else if (resolutionModifier >= 2.9)
videoParameters.blurPasses = 10; // 6K
else if (heightModifier >= 2.6)
else if (resolutionModifier >= 2.6)
videoParameters.blurPasses = 8; // 5K
else if (heightModifier >= 2)
else if (resolutionModifier >= 2)
videoParameters.blurPasses = 5; // 4K
else if (heightModifier >= 1.3)
else if (resolutionModifier >= 1.3)
videoParameters.blurPasses = 3; // 1440
else if (heightModifier >= 1)
else if (resolutionModifier >= 1)
videoParameters.blurPasses = 2; // 1080
// clang-format on
}

16
es-app/src/Screensaver.cpp
View file

@ -327,21 +327,21 @@ void Screensaver::renderScreensaver()
shaders = Renderer::Shader::SCANLINES;
if (Settings::getInstance()->getBool("ScreensaverVideoBlur")) {
shaders |= Renderer::Shader::BLUR_HORIZONTAL;
float heightModifier {Renderer::getScreenHeightModifier()};
const float resolutionModifier {mRenderer->getScreenResolutionModifier()};
// clang-format off
if (heightModifier < 1)
if (resolutionModifier < 1)
videoParameters.blurPasses = 2; // Below 1080
else if (heightModifier >= 4)
else if (resolutionModifier >= 4)
videoParameters.blurPasses = 12; // 8K
else if (heightModifier >= 2.9)
else if (resolutionModifier >= 2.9)
videoParameters.blurPasses = 10; // 6K
else if (heightModifier >= 2.6)
else if (resolutionModifier >= 2.6)
videoParameters.blurPasses = 8; // 5K
else if (heightModifier >= 2)
else if (resolutionModifier >= 2)
videoParameters.blurPasses = 5; // 4K
else if (heightModifier >= 1.3)
else if (resolutionModifier >= 1.3)
videoParameters.blurPasses = 3; // 1440
else if (heightModifier >= 1)
else if (resolutionModifier >= 1)
videoParameters.blurPasses = 2; // 1080
// clang-format on
}

23
es-app/src/guis/GuiMenu.cpp
View file

@ -1303,6 +1303,29 @@ void GuiMenu::openOtherOptions()
}
});
// Screen contents rotation.
auto screenRotate =
std::make_shared<OptionListComponent<std::string>>(getHelpStyle(), "ROTATE SCREEN", false);
const std::string& selectedScreenRotate {
std::to_string(Settings::getInstance()->getInt("ScreenRotate"))};
screenRotate->add("DISABLED", "0", selectedScreenRotate == "0");
screenRotate->add("90 DEGREES", "90", selectedScreenRotate == "90");
screenRotate->add("180 DEGREES", "180", selectedScreenRotate == "180");
screenRotate->add("270 DEGREES", "270", selectedScreenRotate == "270");
// If there are no objects returned, then there must be a manually modified entry in the
// configuration file. Simply set screen rotation to "0" in this case.
if (screenRotate->getSelectedObjects().size() == 0)
screenRotate->selectEntry(0);
s->addWithLabel("ROTATE SCREEN (REQUIRES RESTART)", screenRotate);
s->addSaveFunc([screenRotate, s] {
if (screenRotate->getSelected() !=
std::to_string(Settings::getInstance()->getInt("ScreenRotate"))) {
Settings::getInstance()->setInt("ScreenRotate",
atoi(screenRotate->getSelected().c_str()));
s->setNeedsSaving();
}
});
// Keyboard quit shortcut.
auto keyboardQuitShortcut = std::make_shared<OptionListComponent<std::string>>(
getHelpStyle(), "KEYBOARD QUIT SHORTCUT", false);

50
es-app/src/main.cpp
View file

@ -297,14 +297,14 @@ bool parseArgs(int argc, char* argv[])
std::cerr << "Error: No screenrotate value supplied\n";
return false;
}
std::string rotateValue {argv[i + 1]};
if (rotateValue != "on" && rotateValue != "off" && rotateValue != "1" &&
rotateValue != "0") {
const std::string rotateValue {argv[i + 1]};
if (rotateValue != "0" && rotateValue != "90" && rotateValue != "180" &&
rotateValue != "270") {
std::cerr << "Error: Invalid screenrotate value supplied\n";
return false;
}
bool screenRotate {(rotateValue == "on" || rotateValue == "1") ? true : false};
Settings::getInstance()->setBool("ScreenRotate", screenRotate);
Settings::getInstance()->setInt("ScreenRotate", atoi(argv[i + 1]));
settingsNeedSaving = true;
++i;
}
else if (strcmp(argv[i], "--vsync") == 0) {
@ -401,28 +401,28 @@ bool parseArgs(int argc, char* argv[])
"Usage: emulationstation [options]\n"
"EmulationStation Desktop Edition, Emulator Frontend\n\n"
"Options:\n"
" --display [index 1-4] Display/monitor to use\n"
" --resolution [width] [height] Application resolution\n"
" --screenrotate [1/on or 0/off] Rotate application screen 180 degrees\n"
" --vsync [1/on or 0/off] Turn VSync on or off (default is on)\n"
" --max-vram [size] Max VRAM to use (in mebibytes) before swapping\n"
" --display [1 to 4] Display/monitor to use\n"
" --resolution [width] [height] Application resolution\n"
" --screenrotate [0, 90, 180 or 270] Rotate screen contents within application window\n"
" --vsync [1/on or 0/off] Turn VSync on or off (default is on)\n"
" --max-vram [size] Max VRAM to use (in mebibytes) before swapping\n"
#if !defined(USE_OPENGLES)
" --anti-aliasing [0, 2 or 4] Set MSAA anti-aliasing to disabled, 2x or 4x\n"
" --anti-aliasing [0, 2 or 4] Set MSAA anti-aliasing to disabled, 2x or 4x\n"
#endif
" --no-splash Don't show the splash screen during startup\n"
" --gamelist-only Skip automatic game ROM search, only read from gamelist.xml\n"
" --ignore-gamelist Ignore the gamelist.xml files (useful for troubleshooting)\n"
" --show-hidden-files Show hidden files and folders\n"
" --show-hidden-games Show hidden games\n"
" --force-full Force the UI mode to Full\n"
" --force-kiosk Force the UI mode to Kiosk\n"
" --force-kid Force the UI mode to Kid\n"
" --force-input-config Force configuration of input device\n"
" --create-system-dirs Create game system directories\n"
" --home [path] Directory to use as home path\n"
" --debug Print debug information\n"
" --version, -v Display version information\n"
" --help, -h Summon a sentient, angry tuba\n";
" --no-splash Don't show the splash screen during startup\n"
" --gamelist-only Skip automatic game ROM search, only read from gamelist.xml\n"
" --ignore-gamelist Ignore the gamelist.xml files (useful for troubleshooting)\n"
" --show-hidden-files Show hidden files and folders\n"
" --show-hidden-games Show hidden games\n"
" --force-full Force the UI mode to Full\n"
" --force-kiosk Force the UI mode to Kiosk\n"
" --force-kid Force the UI mode to Kid\n"
" --force-input-config Force configuration of input devices\n"
" --create-system-dirs Create game system directories\n"
" --home [path] Directory to use as home path\n"
" --debug Print debug information\n"
" --version, -v Display version information\n"
" --help, -h Summon a sentient, angry tuba\n";
// clang-format on
return false; // Exit after printing help.
}

5
es-core/src/Settings.cpp
View file

@ -31,7 +31,6 @@ namespace
"IgnoreGamelist", // --ignore-gamelist
"SplashScreen", // --no-splash
"Debug", // --debug
"ScreenRotate", // --screenrotate [1/on or 0/off]
"VSync", // --vsync [1/on or 0/off]
"ForceFull", // --force-full
"ForceKiosk", // --force-kiosk
@ -246,10 +245,11 @@ void Settings::setDefaults()
#else
mIntMap["MaxVRAM"] = {512, 512};
#endif
mIntMap["DisplayIndex"] = {1, 1};
#if !defined(USE_OPENGLES)
mIntMap["AntiAliasing"] = {0, 0};
#endif
mIntMap["DisplayIndex"] = {1, 1};
mIntMap["ScreenRotate"] = {0, 0};
#if defined(__APPLE__)
mStringMap["KeyboardQuitShortcut"] = {"CmdQ", "CmdQ"};
#else
@ -295,7 +295,6 @@ void Settings::setDefaults()
mBoolMap["ForceKiosk"] = {false, false};
mBoolMap["IgnoreGamelist"] = {false, false};
mBoolMap["SplashScreen"] = {true, true};
mBoolMap["ScreenRotate"] = {false, false};
mBoolMap["VSync"] = {true, true};
mIntMap["WindowWidth"] = {0, 0};
mIntMap["WindowHeight"] = {0, 0};

31
es-core/src/Window.cpp
View file

@ -160,7 +160,7 @@ bool Window::init()
progressBarRect.color = DEFAULT_TEXTCOLOR;
mProgressBarRectangles.emplace_back(progressBarRect);
const float borderThickness {std::ceil(2.0f * mRenderer->getScreenHeightModifier())};
const float borderThickness {std::ceil(2.0f * mRenderer->getScreenResolutionModifier())};
progressBarRect.barWidth -= borderThickness * 2.0f;
progressBarRect.barHeight -= borderThickness * 2.0f;
@ -502,21 +502,21 @@ void Window::render()
Renderer::postProcessingParams backgroundParameters;
if (Settings::getInstance()->getBool("MenuBlurBackground")) {
float heightModifier {mRenderer->getScreenHeightModifier()};
const float resolutionModifier {mRenderer->getScreenResolutionModifier()};
// clang-format off
if (heightModifier < 1)
if (resolutionModifier < 1)
backgroundParameters.blurPasses = 2; // Below 1080
else if (heightModifier >= 4)
else if (resolutionModifier >= 4)
backgroundParameters.blurPasses = 12; // 8K
else if (heightModifier >= 2.9)
else if (resolutionModifier >= 2.9)
backgroundParameters.blurPasses = 10; // 6K
else if (heightModifier >= 2.6)
else if (resolutionModifier >= 2.6)
backgroundParameters.blurPasses = 8; // 5K
else if (heightModifier >= 2)
else if (resolutionModifier >= 2)
backgroundParameters.blurPasses = 5; // 4K
else if (heightModifier >= 1.3)
else if (resolutionModifier >= 1.3)
backgroundParameters.blurPasses = 3; // 1440
else if (heightModifier >= 1)
else if (resolutionModifier >= 1)
backgroundParameters.blurPasses = 2; // 1080
// clang-format on
@ -535,9 +535,16 @@ void Window::render()
&processedTexture[0]);
}
mPostprocessedBackground->initFromPixels(
&processedTexture[0], static_cast<size_t>(mRenderer->getScreenWidth()),
static_cast<size_t>(mRenderer->getScreenHeight()));
if (mRenderer->getScreenRotation() == 0 || mRenderer->getScreenRotation() == 180) {
mPostprocessedBackground->initFromPixels(
&processedTexture[0], static_cast<size_t>(mRenderer->getScreenWidth()),
static_cast<size_t>(mRenderer->getScreenHeight()));
}
else {
mPostprocessedBackground->initFromPixels(
&processedTexture[0], static_cast<size_t>(mRenderer->getScreenHeight()),
static_cast<size_t>(mRenderer->getScreenWidth()));
}
mBackgroundOverlay->setImage(mPostprocessedBackground);

86
es-core/src/renderers/Renderer.cpp
View file

@ -119,7 +119,30 @@ bool Renderer::createWindow()
mScreenOffsetY = Settings::getInstance()->getInt("ScreenOffsetY") ?
Settings::getInstance()->getInt("ScreenOffsetY") :
0;
mScreenRotated = Settings::getInstance()->getBool("ScreenRotate");
mScreenRotation = Settings::getInstance()->getInt("ScreenRotate");
// In case someone manually added an invalid value to es_settings.xml.
if (mScreenRotation != 0 && mScreenRotation != 90 && mScreenRotation != 180 &&
mScreenRotation != 270) {
LOG(LogWarning) << "Invalid screen rotation value " << mScreenRotation
<< " defined, changing it to 0/disabled";
mScreenRotation = 0;
}
LOG(LogInfo) << "Screen rotation: "
<< (mScreenRotation == 0 ? "disabled" :
std::to_string(mScreenRotation) + " degrees");
if (mScreenRotation == 90 || mScreenRotation == 270) {
const int tempVal {sScreenWidth};
sScreenWidth = sScreenHeight;
sScreenHeight = tempVal;
}
if (sScreenHeight > sScreenWidth)
sIsVerticalOrientation = true;
else
sIsVerticalOrientation = false;
// Prevent the application window from minimizing when switching windows (when launching
// games or when manually switching windows using the task switcher).
@ -224,6 +247,11 @@ bool Renderer::createWindow()
sScreenWidthModifier = static_cast<float>(sScreenWidth) / 1920.0f;
sScreenAspectRatio = static_cast<float>(sScreenWidth) / static_cast<float>(sScreenHeight);
if (sIsVerticalOrientation)
sScreenResolutionModifier = sScreenWidth / 1080.0f;
else
sScreenResolutionModifier = sScreenHeight / 1080.0f;
LOG(LogInfo) << "Setting up OpenGL...";
if (!createContext())
@ -265,18 +293,41 @@ bool Renderer::init()
viewport.y = mWindowHeight - mScreenOffsetY - sScreenHeight;
viewport.w = sScreenWidth;
viewport.h = sScreenHeight;
projection = glm::ortho(0.0f, static_cast<float>(sScreenWidth),
static_cast<float>(sScreenHeight), 0.0f, -1.0f, 1.0f);
projection = glm::rotate(projection, glm::radians(180.0f), {0.0f, 0.0f, 1.0f});
mProjectionMatrixRotated =
glm::translate(projection, {sScreenWidth * -1.0f, sScreenHeight * -1.0f, 0.0f});
projection = glm::ortho(0.0f, static_cast<float>(sScreenHeight),
static_cast<float>(sScreenWidth), 0.0f, -1.0f, 1.0f);
if (mScreenRotation == 0) {
mProjectionMatrix = glm::ortho(0.0f, static_cast<float>(sScreenWidth),
static_cast<float>(sScreenHeight), 0.0f, -1.0f, 1.0f);
}
else if (mScreenRotation == 90) {
projection = glm::ortho(0.0f, static_cast<float>(sScreenHeight),
static_cast<float>(sScreenWidth), 0.0f, -1.0f, 1.0f);
projection = glm::rotate(projection, glm::radians(90.0f), {0.0f, 0.0f, 1.0f});
mProjectionMatrix = glm::translate(projection, {0.0f, sScreenHeight * -1.0f, 0.0f});
}
else if (mScreenRotation == 180) {
projection = glm::ortho(0.0f, static_cast<float>(sScreenWidth),
static_cast<float>(sScreenHeight), 0.0f, -1.0f, 1.0f);
projection = glm::rotate(projection, glm::radians(180.0f), {0.0f, 0.0f, 1.0f});
mProjectionMatrix =
glm::translate(projection, {sScreenWidth * -1.0f, sScreenHeight * -1.0f, 0.0f});
}
else if (mScreenRotation == 270) {
projection = glm::ortho(0.0f, static_cast<float>(sScreenHeight),
static_cast<float>(sScreenWidth), 0.0f, -1.0f, 1.0f);
projection = glm::rotate(projection, glm::radians(270.0f), {0.0f, 0.0f, 1.0f});
mProjectionMatrix = glm::translate(projection, {sScreenWidth * -1.0f, 0.0f, 0.0f});
}
mProjectionMatrixNormal = glm::ortho(0.0f, static_cast<float>(sScreenWidth),
static_cast<float>(sScreenHeight), 0.0f, -1.0f, 1.0f);
viewport.x = mScreenOffsetX;
viewport.y = mScreenOffsetY;
viewport.w = sScreenWidth;
viewport.h = sScreenHeight;
mProjectionMatrix = glm::ortho(0.0f, static_cast<float>(sScreenWidth),
static_cast<float>(sScreenHeight), 0.0f, -1.0f, 1.0f);
// This is required to avoid a brief white screen flash during startup on some systems.
drawRect(0.0f, 0.0f, static_cast<float>(getScreenWidth()),
@ -301,12 +352,20 @@ void Renderer::pushClipRect(const glm::ivec2& pos, const glm::ivec2& size)
if (box.h == 0)
box.h = sScreenHeight - box.y;
if (mScreenRotated) {
box = Rect {mWindowWidth - mScreenOffsetX - box.x - box.w,
mWindowHeight - mScreenOffsetY - box.y - box.h, box.w, box.h};
if (mScreenRotation == 0) {
box = {mScreenOffsetX + box.x, mScreenOffsetY + box.y, box.w, box.h};
}
else {
box = Rect {mScreenOffsetX + box.x, mScreenOffsetY + box.y, box.w, box.h};
else if (mScreenRotation == 90) {
box = {mScreenOffsetX + mWindowWidth - (box.y + box.h), mScreenOffsetY + box.x, box.h,
box.w};
}
else if (mScreenRotation == 270) {
box = {mScreenOffsetX + box.y, mScreenOffsetY + mWindowHeight - (box.x + box.w), box.h,
box.w};
}
else if (mScreenRotation == 180) {
box = {mWindowWidth - mScreenOffsetX - box.x - box.w,
mWindowHeight - mScreenOffsetY - box.y - box.h, box.w, box.h};
}
// Make sure the box fits within mClipStack.top(), and clip further accordingly.
@ -328,7 +387,6 @@ void Renderer::pushClipRect(const glm::ivec2& pos, const glm::ivec2& size)
box.h = 0;
mClipStack.push(box);
setScissor(box);
}

25
es-core/src/renderers/Renderer.h
View file

@ -52,7 +52,8 @@ public:
PREMULTIPLIED = 0x00000001,
FONT_TEXTURE = 0x00000002,
POST_PROCESSING = 0x00000004,
CLIPPING = 0x00000008
CLIPPING = 0x00000008,
ROTATED = 0x00000010 // Screen rotated 90 or 270 degrees.
};
// clang-format on
@ -155,16 +156,11 @@ public:
const BlendFactor srcBlendFactor = BlendFactor::SRC_ALPHA,
const BlendFactor dstBlendFactor = BlendFactor::ONE_MINUS_SRC_ALPHA);
const glm::mat4& getProjectionMatrix()
{
if (mScreenRotated)
return mProjectionMatrixRotated;
else
return mProjectionMatrix;
}
const glm::mat4& getProjectionMatrixNormal() { return mProjectionMatrix; }
const glm::mat4& getProjectionMatrix() { return mProjectionMatrix; }
const glm::mat4& getProjectionMatrixNormal() { return mProjectionMatrixNormal; }
SDL_Window* getSDLWindow() { return mSDLWindow; }
const bool getScreenRotated() { return mScreenRotated; }
const int getScreenRotation() { return mScreenRotation; }
const bool getIsVerticalOrientation() { return sIsVerticalOrientation; }
const float getWindowWidth() { return static_cast<float>(mWindowWidth); }
const float getWindowHeight() { return static_cast<float>(mWindowHeight); }
static const float getScreenWidth() { return static_cast<float>(sScreenWidth); }
@ -172,6 +168,7 @@ public:
static const float getScreenWidthModifier() { return sScreenWidthModifier; }
static const float getScreenHeightModifier() { return sScreenHeightModifier; }
static const float getScreenAspectRatio() { return sScreenAspectRatio; }
static const float getScreenResolutionModifier() { return sScreenResolutionModifier; }
static constexpr glm::mat4 getIdentity() { return glm::mat4 {1.0f}; }
glm::mat4 mTrans {getIdentity()};
@ -215,19 +212,21 @@ private:
std::stack<Rect> mClipStack;
SDL_Window* mSDLWindow {nullptr};
glm::mat4 mProjectionMatrix {};
glm::mat4 mProjectionMatrixRotated {};
glm::mat4 mProjectionMatrixNormal {};
int mWindowWidth {0};
int mWindowHeight {0};
static inline int sScreenWidth {0};
static inline int sScreenHeight {0};
int mScreenOffsetX {0};
int mScreenOffsetY {0};
bool mScreenRotated {0};
bool mInitialCursorState {1};
int mScreenRotation {0};
bool mInitialCursorState {true};
static inline bool sIsVerticalOrientation {false};
// Screen resolution modifiers relative to the 1920x1080 reference.
static inline float sScreenHeightModifier {0.0f};
static inline float sScreenWidthModifier {0.0f};
static inline float sScreenAspectRatio {0.0f};
static inline float sScreenResolutionModifier {0.0f};
};
#endif // ES_CORE_RENDERER_RENDERER_H

118
es-core/src/renderers/RendererOpenGL.cpp
View file

@ -269,13 +269,22 @@ bool RendererOpenGL::createContext()
uint8_t data[4] {255, 255, 255, 255};
mWhiteTexture = createTexture(TextureType::BGRA, false, false, false, true, 1, 1, data);
mPostProcTexture1 = createTexture(TextureType::BGRA, false, false, false, false,
static_cast<unsigned int>(getScreenWidth()),
static_cast<unsigned int>(getScreenHeight()), nullptr);
unsigned int textureWidth {0};
unsigned int textureHeight {0};
mPostProcTexture2 = createTexture(TextureType::BGRA, false, false, false, false,
static_cast<unsigned int>(getScreenWidth()),
static_cast<unsigned int>(getScreenHeight()), nullptr);
if (getScreenRotation() == 0 || getScreenRotation() == 180) {
textureWidth = static_cast<unsigned int>(getScreenWidth());
textureHeight = static_cast<unsigned int>(getScreenHeight());
}
else {
textureWidth = static_cast<unsigned int>(getScreenHeight());
textureHeight = static_cast<unsigned int>(getScreenWidth());
}
mPostProcTexture1 = createTexture(TextureType::BGRA, false, false, false, false, textureWidth,
textureHeight, nullptr);
mPostProcTexture2 = createTexture(TextureType::BGRA, false, false, false, false, textureWidth,
textureHeight, nullptr);
// Attach textures to the shader framebuffers.
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mShaderFBO1));
@ -494,6 +503,7 @@ void RendererOpenGL::drawTriangleStrips(const Vertex* vertices,
GL_CHECK_ERROR(glBufferData(GL_ARRAY_BUFFER, sizeof(Vertex) * numVertices, vertices,
GL_DYNAMIC_DRAW));
mBlurHorizontalShader->setTextureSize({width, height});
mBlurHorizontalShader->setFlags(vertices->shaderFlags);
GL_CHECK_ERROR(glDrawArrays(GL_TRIANGLE_STRIP, 0, numVertices));
mLastShader = mBlurHorizontalShader;
}
@ -511,6 +521,7 @@ void RendererOpenGL::drawTriangleStrips(const Vertex* vertices,
GL_CHECK_ERROR(glBufferData(GL_ARRAY_BUFFER, sizeof(Vertex) * numVertices, vertices,
GL_DYNAMIC_DRAW));
mBlurVerticalShader->setTextureSize({width, height});
mBlurVerticalShader->setFlags(vertices->shaderFlags);
GL_CHECK_ERROR(glDrawArrays(GL_TRIANGLE_STRIP, 0, numVertices));
mLastShader = mBlurVerticalShader;
}
@ -521,12 +532,12 @@ void RendererOpenGL::drawTriangleStrips(const Vertex* vertices,
mScanlinelShader = getShaderProgram(Shader::SCANLINES);
float shaderWidth {width * 1.2f};
// Scale the scanlines relative to screen resolution.
float screenHeightModifier {getScreenHeightModifier()};
float resolutionModifier {getScreenResolutionModifier()};
float relativeHeight {height / getScreenHeight()};
float shaderHeight {0.0f};
if (relativeHeight == 1.0f) {
// Full screen.
float modifier {1.30f - (0.1f * screenHeightModifier)};
float modifier {1.30f - (0.1f * resolutionModifier)};
shaderHeight = height * modifier;
}
else {
@ -535,7 +546,7 @@ void RendererOpenGL::drawTriangleStrips(const Vertex* vertices,
// scanlines to videos with non-standard aspect ratios.
float relativeWidth {width / getScreenWidth()};
float relativeAdjustment {(relativeWidth + relativeHeight) / 2.0f};
float modifier {1.41f + relativeAdjustment / 7.0f - (0.14f * screenHeightModifier)};
float modifier {1.41f + relativeAdjustment / 7.0f - (0.14f * resolutionModifier)};
shaderHeight = height * modifier;
}
if (mScanlinelShader) {
@ -550,6 +561,7 @@ void RendererOpenGL::drawTriangleStrips(const Vertex* vertices,
mScanlinelShader->setBrightness(vertices->brightness);
mScanlinelShader->setSaturation(vertices->saturation);
mScanlinelShader->setTextureSize({shaderWidth, shaderHeight});
mScanlinelShader->setFlags(vertices->shaderFlags);
GL_CHECK_ERROR(glDrawArrays(GL_TRIANGLE_STRIP, 0, numVertices));
mLastShader = mScanlinelShader;
}
@ -566,6 +578,7 @@ void RendererOpenGL::shaderPostprocessing(unsigned int shaders,
float heightf {getScreenHeight()};
GLuint width {static_cast<GLuint>(widthf)};
GLuint height {static_cast<GLuint>(heightf)};
const int screenRotation {getScreenRotation()};
// Set vertex positions and texture coordinates to full screen as all
// post-processing is applied to the complete screen area.
@ -581,6 +594,9 @@ void RendererOpenGL::shaderPostprocessing(unsigned int shaders,
vertices->dimming = parameters.dimming;
vertices->shaderFlags = ShaderFlags::POST_PROCESSING | ShaderFlags::PREMULTIPLIED;
if (screenRotation == 90 || screenRotation == 270)
vertices->shaderFlags |= ShaderFlags::ROTATED;
if (shaders & Shader::CORE)
shaderList.push_back(Shader::CORE);
if (shaders & Shader::BLUR_HORIZONTAL)
@ -595,16 +611,52 @@ void RendererOpenGL::shaderPostprocessing(unsigned int shaders,
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mShaderFBO1));
// Blit the screen contents to mPostProcTexture.
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, GL_COLOR_BUFFER_BIT,
GL_NEAREST));
int shaderCalls {0};
bool evenBlurPasses {true};
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mShaderFBO2));
for (size_t i {0}; i < shaderList.size(); ++i) {
if (shaderList[i] == Renderer::Shader::BLUR_HORIZONTAL ||
shaderList[i] == Renderer::Shader::BLUR_VERTICAL) {
shaderCalls += parameters.blurPasses;
if (parameters.blurPasses % 2 != 0)
evenBlurPasses = false;
}
else {
++shaderCalls;
}
}
// Blit the screen contents to mPostProcTexture.
if (screenRotation == 0) {
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, width, height, 0, 0, width, height,
GL_COLOR_BUFFER_BIT, GL_NEAREST));
}
else if (screenRotation == 90 || screenRotation == 270) {
if (!evenBlurPasses || !textureRGBA)
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, height, width, 0, 0, height, width,
GL_COLOR_BUFFER_BIT, GL_NEAREST));
else
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, height, width, height, width, 0, 0,
GL_COLOR_BUFFER_BIT, GL_NEAREST));
// If not rendering to a texture, apply shaders without any rotation applied.
if (!textureRGBA)
mTrans = getProjectionMatrixNormal() * getIdentity();
}
else {
if ((shaderCalls + (textureRGBA ? 1 : 0)) % 2 == 0)
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, width, height, 0, 0, width, height,
GL_COLOR_BUFFER_BIT, GL_NEAREST));
else
GL_CHECK_ERROR(glBlitFramebuffer(0, 0, width, height, width, height, 0, 0,
GL_COLOR_BUFFER_BIT, GL_NEAREST));
}
if (shaderCalls > 1)
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mShaderFBO2));
bool firstFBO {true};
int drawCalls {0};
for (size_t i = 0; i < shaderList.size(); ++i) {
for (size_t i {0}; i < shaderList.size(); ++i) {
vertices->shaders = shaderList[i];
int shaderPasses {1};
// For the blur shaders there is an optional variable to set the number of passes
@ -614,27 +666,17 @@ void RendererOpenGL::shaderPostprocessing(unsigned int shaders,
shaderPasses = parameters.blurPasses;
}
for (int p = 0; p < shaderPasses; ++p) {
if (textureRGBA == nullptr && i == shaderList.size() - 1 && p == shaderPasses - 1) {
// If the screen is rotated and we're at an even number of drawcalls, then
// set the projection to a non-rotated state before making the last drawcall
// as the image would otherwise get rendered upside down.
if (getScreenRotated() && drawCalls % 2 == 0) {
mTrans = getIdentity();
mTrans[3] = glm::round(mTrans[3]);
mTrans = getProjectionMatrixNormal() * mTrans;
}
// If it's the last shader pass, then render directly to the default framebuffer
// to avoid having to make an expensive glBlitFramebuffer() call.
for (int p {0}; p < shaderPasses; ++p) {
if (!textureRGBA && i == shaderList.size() - 1 && p == shaderPasses - 1) {
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
drawTriangleStrips(vertices, 4, BlendFactor::SRC_ALPHA,
BlendFactor::ONE_MINUS_SRC_ALPHA);
break;
}
// Apply/render the shaders.
drawTriangleStrips(vertices, 4, BlendFactor::SRC_ALPHA,
BlendFactor::ONE_MINUS_SRC_ALPHA);
++drawCalls;
if (firstFBO) {
bindTexture(mPostProcTexture2);
GL_CHECK_ERROR(glBindFramebuffer(GL_READ_FRAMEBUFFER, mShaderFBO2));
@ -663,16 +705,22 @@ void RendererOpenGL::shaderPostprocessing(unsigned int shaders,
GL_CHECK_ERROR(glBindFramebuffer(GL_READ_FRAMEBUFFER, mShaderFBO2));
#if defined(USE_OPENGLES)
GL_CHECK_ERROR(
glReadPixels(0, 0, width, height, GL_BGRA_EXT, GL_UNSIGNED_BYTE, textureRGBA));
if (screenRotation == 0 || screenRotation == 180)
GL_CHECK_ERROR(
glReadPixels(0, 0, width, height, GL_BGRA_EXT, GL_UNSIGNED_BYTE, textureRGBA));
else
GL_CHECK_ERROR(
glReadPixels(0, 0, height, width, GL_BGRA_EXT, GL_UNSIGNED_BYTE, textureRGBA));
#else
GL_CHECK_ERROR(glReadPixels(0, 0, width, height, GL_BGRA, GL_UNSIGNED_BYTE, textureRGBA));
if (screenRotation == 0 || screenRotation == 180)
GL_CHECK_ERROR(
glReadPixels(0, 0, width, height, GL_BGRA, GL_UNSIGNED_BYTE, textureRGBA));
else
GL_CHECK_ERROR(
glReadPixels(0, 0, height, width, GL_BGRA, GL_UNSIGNED_BYTE, textureRGBA));
#endif
GL_CHECK_ERROR(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
}
if (getScreenRotated())
setMatrix(getIdentity());
GL_CHECK_ERROR(glBindFramebuffer(GL_READ_FRAMEBUFFER, 0));
}

15
resources/shaders/glsl/blur_horizontal.glsl
View file

@ -30,15 +30,28 @@ void main()
precision mediump float;
#endif
uniform uint shaderFlags;
uniform vec2 textureSize;
uniform sampler2D textureSampler;
in vec2 texCoord;
out vec4 FragColor;
#define SourceSize vec4(textureSize, 1.0 / textureSize)
// shaderFlags:
// 0x00000001 - Premultiplied alpha (BGRA)
// 0x00000002 - Font texture
// 0x00000004 - Post processing
// 0x00000008 - Clipping
// 0x00000010 - Screen rotated 90 or 270 degrees
void main()
{
vec4 SourceSize;
if (0x0u != (shaderFlags & 0x10u))
SourceSize = vec4(textureSize.yx, 1.0 / textureSize.yx);
else
SourceSize = vec4(textureSize.xy, 1.0 / textureSize.xy);
vec2 PIXEL_SIZE = vec2(SourceSize.z, SourceSize.w);
float sampleOffsets[5] = float[5](0.0, 1.4347826, 3.3478260, 5.2608695, 7.1739130);

15
resources/shaders/glsl/blur_vertical.glsl
View file

@ -30,15 +30,28 @@ void main()
precision mediump float;
#endif
uniform uint shaderFlags;
uniform vec2 textureSize;
uniform sampler2D textureSampler;
in vec2 texCoord;
out vec4 FragColor;
#define SourceSize vec4(textureSize, 1.0 / textureSize)
// shaderFlags:
// 0x00000001 - Premultiplied alpha (BGRA)
// 0x00000002 - Font texture
// 0x00000004 - Post processing
// 0x00000008 - Clipping
// 0x00000010 - Screen rotated 90 or 270 degrees
void main()
{
vec4 SourceSize;
if (0x0u != (shaderFlags & 0x10u))
SourceSize = vec4(textureSize.yx, 1.0 / textureSize.yx);
else
SourceSize = vec4(textureSize.xy, 1.0 / textureSize.xy);
vec2 PIXEL_SIZE = vec2(SourceSize.z, SourceSize.w);
float sampleOffsets[5] = float[5](0.0, 1.4347826, 3.3478260, 5.2608695, 7.1739130);

1
resources/shaders/glsl/core.glsl
View file

@ -54,6 +54,7 @@ out vec4 FragColor;
// 0x00000002 - Font texture
// 0x00000004 - Post processing
// 0x00000008 - Clipping
// 0x00000010 - Screen rotated 90 or 270 degrees
void main()
{

26
resources/shaders/glsl/scanlines.glsl
View file

@ -60,6 +60,7 @@ uniform vec2 textureSize;
uniform float opacity;
uniform float brightness;
uniform float saturation;
uniform uint shaderFlags;
uniform sampler2D textureSampler;
in vec2 texCoord;
in vec2 onex;
@ -67,8 +68,6 @@ in vec2 oney;
in vec4 colorShift;
out vec4 FragColor;
#define SourceSize vec4(textureSize, 1.0 / textureSize)
#ifdef PARAMETER_UNIFORM
uniform float SPOT_WIDTH;
uniform float SPOT_HEIGHT;
@ -95,8 +94,25 @@ uniform float OutputGamma;
w = 1.0 - w * w; \
w = w * w;
// shaderFlags:
// 0x00000001 - Premultiplied alpha (BGRA)
// 0x00000002 - Font texture
// 0x00000004 - Post processing
// 0x00000008 - Clipping
// 0x00000010 - Screen rotated 90 or 270 degrees
void main()
{
bool rotated = false;
if (0x0u != (shaderFlags & 0x10u))
rotated = true;
vec4 SourceSize;
if (rotated)
SourceSize = vec4(textureSize.yx, 1.0 / textureSize.yx);
else
SourceSize = vec4(textureSize.xy, 1.0 / textureSize.xy);
vec2 coords = (texCoord * SourceSize.xy);
vec2 pixel_center = floor(coords) + vec2(0.5, 0.5);
vec2 texture_coords = pixel_center * SourceSize.zw;
@ -127,7 +143,11 @@ void main()
color = color + colorNB * vec4(h_weight_01);
// Vertical blending.
float dy = coords.y - pixel_center.y;
float dy;
if (rotated)
dy = coords.x - pixel_center.x;
else
dy = coords.y - pixel_center.y;
float v_weight_00 = dy / SPOT_HEIGHT;
WEIGHT(v_weight_00);
color *= vec4(v_weight_00);