mirror of
https://github.com/yuzu-emu/yuzu-mainline.git
synced 2024-12-23 11:45:30 +00:00
GPU: Implement blended downscaling for display transfers.
This commit is contained in:
parent
8ee814ec27
commit
641e78bccf
|
@ -53,6 +53,29 @@ inline void Read(T &var, const u32 raw_addr) {
|
|||
var = g_regs[addr / 4];
|
||||
}
|
||||
|
||||
static Math::Vec4<u8> DecodePixel(Regs::PixelFormat input_format, const u8* src_pixel) {
|
||||
switch (input_format) {
|
||||
case Regs::PixelFormat::RGBA8:
|
||||
return Color::DecodeRGBA8(src_pixel);
|
||||
|
||||
case Regs::PixelFormat::RGB8:
|
||||
return Color::DecodeRGB8(src_pixel);
|
||||
|
||||
case Regs::PixelFormat::RGB565:
|
||||
return Color::DecodeRGB565(src_pixel);
|
||||
|
||||
case Regs::PixelFormat::RGB5A1:
|
||||
return Color::DecodeRGB5A1(src_pixel);
|
||||
|
||||
case Regs::PixelFormat::RGBA4:
|
||||
return Color::DecodeRGBA4(src_pixel);
|
||||
|
||||
default:
|
||||
LOG_ERROR(HW_GPU, "Unknown source framebuffer format %x", input_format);
|
||||
return {0, 0, 0, 0};
|
||||
}
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline void Write(u32 addr, const T data) {
|
||||
addr -= HW::VADDR_GPU;
|
||||
|
@ -125,6 +148,13 @@ inline void Write(u32 addr, const T data) {
|
|||
break;
|
||||
}
|
||||
|
||||
if (config.output_tiled &&
|
||||
(config.scaling == config.ScaleXY || config.scaling == config.ScaleX)) {
|
||||
LOG_CRITICAL(HW_GPU, "Scaling is only implemented on tiled input");
|
||||
UNIMPLEMENTED();
|
||||
break;
|
||||
}
|
||||
|
||||
bool horizontal_scale = config.scaling != config.NoScale;
|
||||
bool vertical_scale = config.scaling == config.ScaleXY;
|
||||
|
||||
|
@ -153,11 +183,9 @@ inline void Write(u32 addr, const T data) {
|
|||
break;
|
||||
}
|
||||
|
||||
// TODO(Subv): Implement the box filter when scaling is enabled
|
||||
// right now we're just skipping the extra pixels.
|
||||
for (u32 y = 0; y < output_height; ++y) {
|
||||
for (u32 x = 0; x < output_width; ++x) {
|
||||
Math::Vec4<u8> src_color = { 0, 0, 0, 0 };
|
||||
Math::Vec4<u8> src_color;
|
||||
|
||||
// Calculate the [x,y] position of the input image
|
||||
// based on the current output position and the scale
|
||||
|
@ -193,30 +221,15 @@ inline void Write(u32 addr, const T data) {
|
|||
}
|
||||
|
||||
const u8* src_pixel = src_pointer + src_offset;
|
||||
switch (config.input_format) {
|
||||
case Regs::PixelFormat::RGBA8:
|
||||
src_color = Color::DecodeRGBA8(src_pixel);
|
||||
break;
|
||||
|
||||
case Regs::PixelFormat::RGB8:
|
||||
src_color = Color::DecodeRGB8(src_pixel);
|
||||
break;
|
||||
|
||||
case Regs::PixelFormat::RGB565:
|
||||
src_color = Color::DecodeRGB565(src_pixel);
|
||||
break;
|
||||
|
||||
case Regs::PixelFormat::RGB5A1:
|
||||
src_color = Color::DecodeRGB5A1(src_pixel);
|
||||
break;
|
||||
|
||||
case Regs::PixelFormat::RGBA4:
|
||||
src_color = Color::DecodeRGBA4(src_pixel);
|
||||
break;
|
||||
|
||||
default:
|
||||
LOG_ERROR(HW_GPU, "Unknown source framebuffer format %x", config.input_format.Value());
|
||||
break;
|
||||
src_color = DecodePixel(config.input_format, src_pixel);
|
||||
if (config.scaling == config.ScaleX) {
|
||||
Math::Vec4<u8> pixel = DecodePixel(config.input_format, src_pixel + src_bytes_per_pixel);
|
||||
src_color = ((src_color + pixel) / 2).Cast<u8>();
|
||||
} else if (config.scaling == config.ScaleXY) {
|
||||
Math::Vec4<u8> pixel1 = DecodePixel(config.input_format, src_pixel + 1 * src_bytes_per_pixel);
|
||||
Math::Vec4<u8> pixel2 = DecodePixel(config.input_format, src_pixel + 2 * src_bytes_per_pixel);
|
||||
Math::Vec4<u8> pixel3 = DecodePixel(config.input_format, src_pixel + 3 * src_bytes_per_pixel);
|
||||
src_color = (((src_color + pixel1) + (pixel2 + pixel3)) / 4).Cast<u8>();
|
||||
}
|
||||
|
||||
u8* dst_pixel = dst_pointer + dst_offset;
|
||||
|
|
Loading…
Reference in a new issue