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System: Render save state screenshots at fixed resolution

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Fixes delays when saving state at high internal resolution.
This commit is contained in:
Connor McLaughlin
2021-04-28 02:37:52 +10:00
parent 67adc986ab
commit c2916e0719
5 changed files with 80 additions and 34 deletions
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45
src/core/host_display.cpp
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@ -20,6 +20,12 @@ HostDisplayTexture::~HostDisplayTexture() = default;
HostDisplay::~HostDisplay() = default;
bool HostDisplay::UsesLowerLeftOrigin() const
{
const RenderAPI api = GetRenderAPI();
return (api == RenderAPI::OpenGL || api == RenderAPI::OpenGLES);
}
void HostDisplay::SetDisplayMaxFPS(float max_fps)
{
m_display_frame_interval = (max_fps > 0.0f) ? (1.0f / max_fps) : 0.0f;
@ -299,8 +305,8 @@ std::tuple<float, float> HostDisplay::ConvertWindowCoordinatesToDisplayCoordinat
return std::make_tuple(display_x, display_y);
}
static bool ConvertTextureDataToRGBA8(u32 width, u32 height, std::vector<u32>& texture_data, u32& texture_data_stride,
HostDisplayPixelFormat format)
bool HostDisplay::ConvertTextureDataToRGBA8(u32 width, u32 height, std::vector<u32>& texture_data,
u32& texture_data_stride, HostDisplayPixelFormat format)
{
switch (format)
{
@ -382,6 +388,19 @@ static bool ConvertTextureDataToRGBA8(u32 width, u32 height, std::vector<u32>& t
}
}
void HostDisplay::FlipTextureDataRGBA8(u32 width, u32 height, std::vector<u32>& texture_data, u32 texture_data_stride)
{
std::vector<u32> temp(width);
for (u32 flip_row = 0; flip_row < (height / 2); flip_row++)
{
u32* top_ptr = &texture_data[flip_row * width];
u32* bottom_ptr = &texture_data[((height - 1) - flip_row) * width];
std::memcpy(temp.data(), top_ptr, texture_data_stride);
std::memcpy(top_ptr, bottom_ptr, texture_data_stride);
std::memcpy(bottom_ptr, temp.data(), texture_data_stride);
}
}
static bool CompressAndWriteTextureToFile(u32 width, u32 height, std::string filename, FileSystem::ManagedCFilePtr fp,
bool clear_alpha, bool flip_y, u32 resize_width, u32 resize_height,
std::vector<u32> texture_data, u32 texture_data_stride,
@ -395,7 +414,7 @@ static bool CompressAndWriteTextureToFile(u32 width, u32 height, std::string fil
return false;
}
if (!ConvertTextureDataToRGBA8(width, height, texture_data, texture_data_stride, texture_format))
if (!HostDisplay::ConvertTextureDataToRGBA8(width, height, texture_data, texture_data_stride, texture_format))
return false;
if (clear_alpha)
@ -405,17 +424,7 @@ static bool CompressAndWriteTextureToFile(u32 width, u32 height, std::string fil
}
if (flip_y)
{
std::vector<u32> temp(width);
for (u32 flip_row = 0; flip_row < (height / 2); flip_row++)
{
u32* top_ptr = &texture_data[flip_row * width];
u32* bottom_ptr = &texture_data[((height - 1) - flip_row) * width];
std::memcpy(temp.data(), top_ptr, texture_data_stride);
std::memcpy(top_ptr, bottom_ptr, texture_data_stride);
std::memcpy(bottom_ptr, temp.data(), texture_data_stride);
}
}
HostDisplay::FlipTextureDataRGBA8(width, height, texture_data, texture_data_stride);
if (resize_width > 0 && resize_height > 0 && (resize_width != width || resize_height != height))
{
@ -643,16 +652,14 @@ bool HostDisplay::WriteScreenshotToFile(std::string filename, bool compress_on_t
return false;
}
const RenderAPI api = GetRenderAPI();
const bool flip_y = (api == RenderAPI::OpenGL || api == RenderAPI::OpenGLES);
if (!compress_on_thread)
{
return CompressAndWriteTextureToFile(width, height, std::move(filename), std::move(fp), true, flip_y, width, height,
std::move(pixels), pixels_stride, pixels_format);
return CompressAndWriteTextureToFile(width, height, std::move(filename), std::move(fp), true, UsesLowerLeftOrigin(),
width, height, std::move(pixels), pixels_stride, pixels_format);
}
std::thread compress_thread(CompressAndWriteTextureToFile, width, height, std::move(filename), std::move(fp), true,
flip_y, width, height, std::move(pixels), pixels_stride, pixels_format);
UsesLowerLeftOrigin(), width, height, std::move(pixels), pixels_stride, pixels_format);
compress_thread.detach();
return true;
}