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Add Cardboard VR 

Based on hrydgard/ppsspp/pull/12449
master
SutandoTsukai181 2020-06-10 13:44:21 +07:00 committed by SachinVin
parent da3a9bfc96
commit 60235827c5
5 changed files with 174 additions and 6 deletions
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30
src/core/frontend/emu_window.cpp
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@ -73,6 +73,14 @@ static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, unsigne
framebuffer_x < layout.bottom_screen.right / 2) ||
(framebuffer_x >= (layout.bottom_screen.left / 2) + (layout.width / 2) &&
framebuffer_x < (layout.bottom_screen.right / 2) + (layout.width / 2))));
} else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
return (framebuffer_y >= layout.bottom_screen.top &&
framebuffer_y < layout.bottom_screen.bottom &&
((framebuffer_x >= layout.bottom_screen.left &&
framebuffer_x < layout.bottom_screen.right) ||
(framebuffer_x >= layout.cardboard.bottom_screen_right_eye + (layout.width / 2) &&
framebuffer_x < layout.cardboard.bottom_screen_right_eye +
layout.bottom_screen.GetWidth() + (layout.width / 2))));
} else {
return (framebuffer_y >= layout.bottom_screen.top &&
framebuffer_y < layout.bottom_screen.bottom &&
@ -82,9 +90,14 @@ static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, unsigne
}
std::tuple<unsigned, unsigned> EmuWindow::ClipToTouchScreen(unsigned new_x, unsigned new_y) const {
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
if (new_x >= framebuffer_layout.width / 2)
if (new_x >= framebuffer_layout.width / 2) {
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide)
new_x -= framebuffer_layout.width / 2;
else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR)
new_x -=
(framebuffer_layout.width / 2) - (framebuffer_layout.cardboard.user_x_shift * 2);
}
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
new_x = std::max(new_x, framebuffer_layout.bottom_screen.left / 2);
new_x = std::min(new_x, framebuffer_layout.bottom_screen.right / 2 - 1);
} else {
@ -102,9 +115,13 @@ void EmuWindow::TouchPressed(unsigned framebuffer_x, unsigned framebuffer_y) {
if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
return;
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide &&
framebuffer_x >= framebuffer_layout.width / 2)
framebuffer_x -= framebuffer_layout.width / 2;
if (framebuffer_x >= framebuffer_layout.width / 2) {
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide)
framebuffer_x -= framebuffer_layout.width / 2;
else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR)
framebuffer_x -=
(framebuffer_layout.width / 2) - (framebuffer_layout.cardboard.user_x_shift * 2);
}
std::lock_guard guard(touch_state->mutex);
if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
touch_state->touch_x =
@ -191,6 +208,9 @@ void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height,
}
UpdateMinimumWindowSize(min_size);
}
if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
layout = Layout::GetCardboardSettings(layout);
}
NotifyFramebufferLayoutChanged(layout);
}

83
src/core/frontend/framebuffer_layout.cpp
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@ -452,9 +452,92 @@ FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale) {
break;
}
}
if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
layout = Layout::GetCardboardSettings(layout);
}
return layout;
}
FramebufferLayout GetCardboardSettings(FramebufferLayout layout) {
FramebufferLayout newLayout = layout;
float top_screen_left = 0;
float top_screen_top = 0;
float bottom_screen_left = 0;
float bottom_screen_top = 0;
float cardboardScreenScale = Settings::values.cardboard_screen_size / 100.0f;
float top_screen_width = layout.top_screen.GetWidth() / 2.0f * cardboardScreenScale;
float top_screen_height = layout.top_screen.GetHeight() / 2.0f * cardboardScreenScale;
float bottom_screen_width = layout.bottom_screen.GetWidth() / 2.0f * cardboardScreenScale;
float bottom_screen_height = layout.bottom_screen.GetHeight() / 2.0f * cardboardScreenScale;
bool is_swapped = Settings::values.swap_screen;
bool is_portrait = layout.height > layout.width;
float cardboardScreenWidth;
float cardboardScreenHeight;
switch (Settings::values.layout_option) {
case Settings::LayoutOption::MobileLandscape:
case Settings::LayoutOption::SideScreen:
// If orientation is portrait, only use MobilePortrait
if (!is_portrait) {
cardboardScreenWidth = top_screen_width + bottom_screen_width;
cardboardScreenHeight = is_swapped ? bottom_screen_height : top_screen_height;
if (is_swapped)
top_screen_left += bottom_screen_width;
else
bottom_screen_left += top_screen_width;
break;
} else {
[[fallthrough]];
}
case Settings::LayoutOption::SingleScreen:
default:
if (!is_portrait) {
// Default values when using LayoutOption::SingleScreen
cardboardScreenWidth = is_swapped ? bottom_screen_width : top_screen_width;
cardboardScreenHeight = is_swapped ? bottom_screen_height : top_screen_height;
break;
} else {
[[fallthrough]];
}
case Settings::LayoutOption::MobilePortrait:
cardboardScreenWidth = top_screen_width;
cardboardScreenHeight = top_screen_height + bottom_screen_height;
bottom_screen_left += (top_screen_width - bottom_screen_width) / 2.0f;
if (is_swapped)
top_screen_top += bottom_screen_height;
else
bottom_screen_top += top_screen_height;
break;
}
float cardboardMaxXShift = (layout.width / 2.0f - cardboardScreenWidth) / 2.0f;
float cardboardUserXShift = (Settings::values.cardboard_x_shift / 100.0f) * cardboardMaxXShift;
float cardboardMaxYShift = ((float)layout.height - cardboardScreenHeight) / 2.0f;
float cardboardUserYShift = (Settings::values.cardboard_y_shift / 100.0f) * cardboardMaxYShift;
// Center the screens and apply user Y shift
newLayout.top_screen.left = top_screen_left + cardboardMaxXShift;
newLayout.top_screen.top = top_screen_top + cardboardMaxYShift + cardboardUserYShift;
newLayout.bottom_screen.left = bottom_screen_left + cardboardMaxXShift;
newLayout.bottom_screen.top = bottom_screen_top + cardboardMaxYShift + cardboardUserYShift;
// Set the X coordinates for the right eye and apply user X shift
newLayout.cardboard.top_screen_right_eye = newLayout.top_screen.left - cardboardUserXShift;
newLayout.top_screen.left += cardboardUserXShift;
newLayout.cardboard.bottom_screen_right_eye =
newLayout.bottom_screen.left - cardboardUserXShift;
newLayout.bottom_screen.left += cardboardUserXShift;
newLayout.cardboard.user_x_shift = cardboardUserXShift;
// Update right/bottom instead of passing new variables for width/height
newLayout.top_screen.right = newLayout.top_screen.left + top_screen_width;
newLayout.top_screen.bottom = newLayout.top_screen.top + top_screen_height;
newLayout.bottom_screen.right = newLayout.bottom_screen.left + bottom_screen_width;
newLayout.bottom_screen.bottom = newLayout.bottom_screen.top + bottom_screen_height;
return newLayout;
}
std::pair<unsigned, unsigned> GetMinimumSizeFromLayout(Settings::LayoutOption layout,
bool upright_screen) {
unsigned min_width, min_height;

16
src/core/frontend/framebuffer_layout.h
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@ -9,6 +9,13 @@
namespace Layout {
/// Describes the horizontal coordinates for the right eye screen when using Cardboard VR
struct CardboardSettings {
float top_screen_right_eye;
float bottom_screen_right_eye;
float user_x_shift;
};
/// Describes the layout of the window framebuffer (size and top/bottom screen positions)
struct FramebufferLayout {
u32 width;
@ -19,6 +26,8 @@ struct FramebufferLayout {
Common::Rectangle<u32> bottom_screen;
bool is_rotated = true;
CardboardSettings cardboard;
/**
* Returns the ration of pixel size of the top screen, compared to the native size of the 3DS
* screen.
@ -104,6 +113,13 @@ FramebufferLayout CustomFrameLayout(u32 width, u32 height);
*/
FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale);
/**
* Convenience method for transforming a frame layout when using Cardboard VR
* @param layout frame layout to transform
* @return layout transformed with the user cardboard settings
*/
FramebufferLayout GetCardboardSettings(FramebufferLayout layout);
std::pair<unsigned, unsigned> GetMinimumSizeFromLayout(Settings::LayoutOption layout,
bool upright_screen);

13
src/core/settings.h
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@ -40,7 +40,14 @@ enum class MicInputType {
Static,
};
enum class StereoRenderOption { Off, SideBySide, Anaglyph, Interlaced, ReverseInterlaced };
enum class StereoRenderOption {
Off,
SideBySide,
Anaglyph,
Interlaced,
ReverseInterlaced,
CardboardVR
};
namespace NativeButton {
enum Values {
@ -190,6 +197,10 @@ struct Values {
StereoRenderOption render_3d;
std::atomic<u8> factor_3d;
int cardboard_screen_size;
int cardboard_x_shift;
int cardboard_y_shift;
bool filter_mode;
std::string pp_shader_name;

38
src/video_core/renderer_opengl/renderer_opengl.cpp
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@ -1016,6 +1016,16 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout, bool f
((float)top_screen.left / 2) + ((float)layout.width / 2),
(float)top_screen.top, (float)top_screen.GetWidth() / 2,
(float)top_screen.GetHeight());
} else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
DrawSingleScreenRotated(screen_infos[0], layout.top_screen.left,
layout.top_screen.top, layout.top_screen.GetWidth(),
layout.top_screen.GetHeight());
glUniform1i(uniform_layer, 1);
DrawSingleScreenRotated(screen_infos[1],
layout.cardboard.top_screen_right_eye +
((float)layout.width / 2),
layout.top_screen.top, layout.top_screen.GetWidth(),
layout.top_screen.GetHeight());
} else if (stereo_single_screen) {
DrawSingleScreenStereoRotated(
screen_infos[0], screen_infos[1], (float)top_screen.left, (float)top_screen.top,
@ -1033,6 +1043,14 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout, bool f
((float)top_screen.left / 2) + ((float)layout.width / 2),
(float)top_screen.top, (float)top_screen.GetWidth() / 2,
(float)top_screen.GetHeight());
} else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
DrawSingleScreen(screen_infos[0], layout.top_screen.left, layout.top_screen.top,
layout.top_screen.GetWidth(), layout.top_screen.GetHeight());
glUniform1i(uniform_layer, 1);
DrawSingleScreen(screen_infos[1],
layout.cardboard.top_screen_right_eye + ((float)layout.width / 2),
layout.top_screen.top, layout.top_screen.GetWidth(),
layout.top_screen.GetHeight());
} else if (stereo_single_screen) {
DrawSingleScreenStereo(screen_infos[0], screen_infos[1], (float)top_screen.left,
(float)top_screen.top, (float)top_screen.GetWidth(),
@ -1056,6 +1074,16 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout, bool f
screen_infos[2], ((float)bottom_screen.left / 2) + ((float)layout.width / 2),
(float)bottom_screen.top, (float)bottom_screen.GetWidth() / 2,
(float)bottom_screen.GetHeight());
} else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
DrawSingleScreenRotated(screen_infos[2], layout.bottom_screen.left,
layout.bottom_screen.top, layout.bottom_screen.GetWidth(),
layout.bottom_screen.GetHeight());
glUniform1i(uniform_layer, 1);
DrawSingleScreenRotated(screen_infos[2],
layout.cardboard.bottom_screen_right_eye +
((float)layout.width / 2),
layout.bottom_screen.top, layout.bottom_screen.GetWidth(),
layout.bottom_screen.GetHeight());
} else if (stereo_single_screen) {
DrawSingleScreenStereoRotated(screen_infos[2], screen_infos[2],
(float)bottom_screen.left, (float)bottom_screen.top,
@ -1076,6 +1104,16 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout, bool f
((float)bottom_screen.left / 2) + ((float)layout.width / 2),
(float)bottom_screen.top, (float)bottom_screen.GetWidth() / 2,
(float)bottom_screen.GetHeight());
} else if (Settings::values.render_3d == Settings::StereoRenderOption::CardboardVR) {
DrawSingleScreen(screen_infos[2], layout.bottom_screen.left,
layout.bottom_screen.top, layout.bottom_screen.GetWidth(),
layout.bottom_screen.GetHeight());
glUniform1i(uniform_layer, 1);
DrawSingleScreen(screen_infos[2],
layout.cardboard.bottom_screen_right_eye +
((float)layout.width / 2),
layout.bottom_screen.top, layout.bottom_screen.GetWidth(),
layout.bottom_screen.GetHeight());
} else if (stereo_single_screen) {
DrawSingleScreenStereo(screen_infos[2], screen_infos[2], (float)bottom_screen.left,
(float)bottom_screen.top, (float)bottom_screen.GetWidth(),