mirror of
https://github.com/LizardByte/Sunshine.git
synced 2025-03-19 22:20:52 +00:00
Fix Windows masked cursor blending with GPU encoders (#720)
This commit is contained in:
Cameron Gutman
GitHub
parent
c95f54f874
commit
e2fce257b5
@ -185,13 +185,15 @@ public:
|
||||
|
||||
sampler_state_t sampler_linear;
|
||||
|
||||
blend_t blend_enable;
|
||||
blend_t blend_alpha;
|
||||
blend_t blend_invert;
|
||||
blend_t blend_disable;
|
||||
|
||||
ps_t scene_ps;
|
||||
vs_t scene_vs;
|
||||
|
||||
gpu_cursor_t cursor;
|
||||
gpu_cursor_t cursor_alpha;
|
||||
gpu_cursor_t cursor_xor;
|
||||
|
||||
texture2d_t last_frame_copy;
|
||||
};
|
||||
|
||||
@ -52,7 +52,7 @@ buf_t make_buffer(device_t::pointer device, const T &t) {
|
||||
return buf_t { buf_p };
|
||||
}
|
||||
|
||||
blend_t make_blend(device_t::pointer device, bool enable) {
|
||||
blend_t make_blend(device_t::pointer device, bool enable, bool invert) {
|
||||
D3D11_BLEND_DESC bdesc {};
|
||||
auto &rt = bdesc.RenderTarget[0];
|
||||
rt.BlendEnable = enable;
|
||||
@ -62,8 +62,16 @@ blend_t make_blend(device_t::pointer device, bool enable) {
|
||||
rt.BlendOp = D3D11_BLEND_OP_ADD;
|
||||
rt.BlendOpAlpha = D3D11_BLEND_OP_ADD;
|
||||
|
||||
rt.SrcBlend = D3D11_BLEND_SRC_ALPHA;
|
||||
rt.DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
|
||||
if(invert) {
|
||||
// Invert colors
|
||||
rt.SrcBlend = D3D11_BLEND_INV_DEST_COLOR;
|
||||
rt.DestBlend = D3D11_BLEND_INV_SRC_COLOR;
|
||||
}
|
||||
else {
|
||||
// Regular alpha blending
|
||||
rt.SrcBlend = D3D11_BLEND_SRC_ALPHA;
|
||||
rt.DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
|
||||
}
|
||||
|
||||
rt.SrcBlendAlpha = D3D11_BLEND_ZERO;
|
||||
rt.DestBlendAlpha = D3D11_BLEND_ZERO;
|
||||
@ -110,22 +118,39 @@ struct img_d3d_t : public platf::img_t {
|
||||
};
|
||||
};
|
||||
|
||||
util::buffer_t<std::uint8_t> make_cursor_image(util::buffer_t<std::uint8_t> &&img_data, DXGI_OUTDUPL_POINTER_SHAPE_INFO shape_info) {
|
||||
constexpr std::uint32_t black = 0xFF000000;
|
||||
constexpr std::uint32_t white = 0xFFFFFFFF;
|
||||
util::buffer_t<std::uint8_t> make_cursor_xor_image(const util::buffer_t<std::uint8_t> &img_data, DXGI_OUTDUPL_POINTER_SHAPE_INFO shape_info) {
|
||||
constexpr std::uint32_t inverted = 0xFFFFFFFF;
|
||||
constexpr std::uint32_t transparent = 0;
|
||||
|
||||
switch(shape_info.Type) {
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR:
|
||||
std::for_each((std::uint32_t *)std::begin(img_data), (std::uint32_t *)std::end(img_data), [](auto &pixel) {
|
||||
if(pixel & 0xFF000000) {
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR:
|
||||
// This type doesn't require any XOR-blending
|
||||
return {};
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: {
|
||||
util::buffer_t<std::uint8_t> cursor_img = img_data;
|
||||
std::for_each((std::uint32_t *)std::begin(cursor_img), (std::uint32_t *)std::end(cursor_img), [](auto &pixel) {
|
||||
auto alpha = (std::uint8_t)((pixel >> 24) & 0xFF);
|
||||
if(alpha == 0xFF) {
|
||||
// Pixels with 0xFF alpha will be XOR-blended as is.
|
||||
}
|
||||
else if(alpha == 0x00) {
|
||||
// Pixels with 0x00 alpha will be blended by make_cursor_alpha_image().
|
||||
// We make them transparent for the XOR-blended cursor image.
|
||||
pixel = transparent;
|
||||
}
|
||||
else {
|
||||
// Other alpha values are illegal in masked color cursors
|
||||
BOOST_LOG(warning) << "Illegal alpha value in masked color cursor: " << alpha;
|
||||
}
|
||||
});
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR:
|
||||
return std::move(img_data);
|
||||
default:
|
||||
return cursor_img;
|
||||
}
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME:
|
||||
// Monochrome is handled below
|
||||
break;
|
||||
default:
|
||||
BOOST_LOG(error) << "Invalid cursor shape type: " << shape_info.Type;
|
||||
return {};
|
||||
}
|
||||
|
||||
shape_info.Height /= 2;
|
||||
@ -144,46 +169,89 @@ util::buffer_t<std::uint8_t> make_cursor_image(util::buffer_t<std::uint8_t> &&im
|
||||
auto color_type = ((*and_mask & bit) ? 1 : 0) + ((*xor_mask & bit) ? 2 : 0);
|
||||
|
||||
switch(color_type) {
|
||||
case 0: //black
|
||||
case 0: // Opaque black (handled by alpha-blending)
|
||||
case 2: // Opaque white (handled by alpha-blending)
|
||||
case 1: // Color of screen (transparent)
|
||||
*pixel_data = transparent;
|
||||
break;
|
||||
case 3: // Inverse of screen
|
||||
*pixel_data = inverted;
|
||||
break;
|
||||
}
|
||||
|
||||
++pixel_data;
|
||||
}
|
||||
++and_mask;
|
||||
++xor_mask;
|
||||
}
|
||||
|
||||
return cursor_img;
|
||||
}
|
||||
|
||||
util::buffer_t<std::uint8_t> make_cursor_alpha_image(const util::buffer_t<std::uint8_t> &img_data, DXGI_OUTDUPL_POINTER_SHAPE_INFO shape_info) {
|
||||
constexpr std::uint32_t black = 0xFF000000;
|
||||
constexpr std::uint32_t white = 0xFFFFFFFF;
|
||||
constexpr std::uint32_t transparent = 0;
|
||||
|
||||
switch(shape_info.Type) {
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: {
|
||||
util::buffer_t<std::uint8_t> cursor_img = img_data;
|
||||
std::for_each((std::uint32_t *)std::begin(cursor_img), (std::uint32_t *)std::end(cursor_img), [](auto &pixel) {
|
||||
auto alpha = (std::uint8_t)((pixel >> 24) & 0xFF);
|
||||
if(alpha == 0xFF) {
|
||||
// Pixels with 0xFF alpha will be XOR-blended by make_cursor_xor_image().
|
||||
// We make them transparent for the alpha-blended cursor image.
|
||||
pixel = transparent;
|
||||
}
|
||||
else if(alpha == 0x00) {
|
||||
// Pixels with 0x00 alpha will be blended as opaque with the alpha-blended image.
|
||||
pixel |= 0xFF000000;
|
||||
}
|
||||
else {
|
||||
// Other alpha values are illegal in masked color cursors
|
||||
BOOST_LOG(warning) << "Illegal alpha value in masked color cursor: " << alpha;
|
||||
}
|
||||
});
|
||||
return cursor_img;
|
||||
}
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR:
|
||||
// Color cursors are just an ARGB bitmap which requires no processing.
|
||||
return img_data;
|
||||
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME:
|
||||
// Monochrome cursors are handled below.
|
||||
break;
|
||||
default:
|
||||
BOOST_LOG(error) << "Invalid cursor shape type: " << shape_info.Type;
|
||||
return {};
|
||||
}
|
||||
|
||||
shape_info.Height /= 2;
|
||||
|
||||
util::buffer_t<std::uint8_t> cursor_img { shape_info.Width * shape_info.Height * 4 };
|
||||
|
||||
auto bytes = shape_info.Pitch * shape_info.Height;
|
||||
auto pixel_begin = (std::uint32_t *)std::begin(cursor_img);
|
||||
auto pixel_data = pixel_begin;
|
||||
auto and_mask = std::begin(img_data);
|
||||
auto xor_mask = std::begin(img_data) + bytes;
|
||||
|
||||
for(auto x = 0; x < bytes; ++x) {
|
||||
for(auto c = 7; c >= 0; --c) {
|
||||
auto bit = 1 << c;
|
||||
auto color_type = ((*and_mask & bit) ? 1 : 0) + ((*xor_mask & bit) ? 2 : 0);
|
||||
|
||||
switch(color_type) {
|
||||
case 0: // Opaque black
|
||||
*pixel_data = black;
|
||||
break;
|
||||
case 2: //white
|
||||
case 2: // Opaque white
|
||||
*pixel_data = white;
|
||||
break;
|
||||
case 1: //transparent
|
||||
{
|
||||
case 3: // Inverse of screen (handled by XOR blending)
|
||||
case 1: // Color of screen (transparent)
|
||||
*pixel_data = transparent;
|
||||
|
||||
break;
|
||||
}
|
||||
case 3: //inverse
|
||||
{
|
||||
auto top_p = pixel_data - shape_info.Width;
|
||||
auto left_p = pixel_data - 1;
|
||||
auto right_p = pixel_data + 1;
|
||||
auto bottom_p = pixel_data + shape_info.Width;
|
||||
|
||||
// Get the x coordinate of the pixel
|
||||
auto column = (pixel_data - pixel_begin) % shape_info.Width != 0;
|
||||
|
||||
if(top_p >= pixel_begin && *top_p == transparent) {
|
||||
*top_p = black;
|
||||
}
|
||||
|
||||
if(column != 0 && left_p >= pixel_begin && *left_p == transparent) {
|
||||
*left_p = black;
|
||||
}
|
||||
|
||||
if(bottom_p < (std::uint32_t *)std::end(cursor_img)) {
|
||||
*bottom_p = black;
|
||||
}
|
||||
|
||||
if(column != shape_info.Width - 1) {
|
||||
*right_p = black;
|
||||
}
|
||||
*pixel_data = white;
|
||||
}
|
||||
}
|
||||
|
||||
++pixel_data;
|
||||
}
|
||||
@ -513,7 +581,7 @@ public:
|
||||
return -1;
|
||||
}
|
||||
|
||||
blend_disable = make_blend(device.get(), false);
|
||||
blend_disable = make_blend(device.get(), false, false);
|
||||
if(!blend_disable) {
|
||||
return -1;
|
||||
}
|
||||
@ -667,6 +735,50 @@ capture_e display_vram_t::capture(snapshot_cb_t &&snapshot_cb, std::shared_ptr<:
|
||||
return capture_e::ok;
|
||||
}
|
||||
|
||||
bool set_cursor_texture(device_t::pointer device, gpu_cursor_t &cursor, util::buffer_t<std::uint8_t> &&cursor_img, DXGI_OUTDUPL_POINTER_SHAPE_INFO &shape_info) {
|
||||
// This cursor image may not be used
|
||||
if(cursor_img.size() == 0) {
|
||||
cursor.input_res.reset();
|
||||
cursor.set_texture(0, 0, nullptr);
|
||||
return true;
|
||||
}
|
||||
|
||||
D3D11_SUBRESOURCE_DATA data {
|
||||
std::begin(cursor_img),
|
||||
4 * shape_info.Width,
|
||||
0
|
||||
};
|
||||
|
||||
// Create texture for cursor
|
||||
D3D11_TEXTURE2D_DESC t {};
|
||||
t.Width = shape_info.Width;
|
||||
t.Height = cursor_img.size() / data.SysMemPitch;
|
||||
t.MipLevels = 1;
|
||||
t.ArraySize = 1;
|
||||
t.SampleDesc.Count = 1;
|
||||
t.Usage = D3D11_USAGE_IMMUTABLE;
|
||||
t.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
|
||||
t.BindFlags = D3D11_BIND_SHADER_RESOURCE;
|
||||
|
||||
texture2d_t texture;
|
||||
auto status = device->CreateTexture2D(&t, &data, &texture);
|
||||
if(FAILED(status)) {
|
||||
BOOST_LOG(error) << "Failed to create mouse texture [0x"sv << util::hex(status).to_string_view() << ']';
|
||||
return false;
|
||||
}
|
||||
|
||||
// Free resources before allocating on the next line.
|
||||
cursor.input_res.reset();
|
||||
status = device->CreateShaderResourceView(texture.get(), nullptr, &cursor.input_res);
|
||||
if(FAILED(status)) {
|
||||
BOOST_LOG(error) << "Failed to create cursor shader resource view [0x"sv << util::hex(status).to_string_view() << ']';
|
||||
return false;
|
||||
}
|
||||
|
||||
cursor.set_texture(t.Width, t.Height, std::move(texture));
|
||||
return true;
|
||||
}
|
||||
|
||||
capture_e display_vram_t::snapshot(platf::img_t *img_base, std::chrono::milliseconds timeout, bool cursor_visible) {
|
||||
auto img = (img_d3d_t *)img_base;
|
||||
|
||||
@ -703,45 +815,18 @@ capture_e display_vram_t::snapshot(platf::img_t *img_base, std::chrono::millisec
|
||||
return capture_e::error;
|
||||
}
|
||||
|
||||
auto cursor_img = make_cursor_image(std::move(img_data), shape_info);
|
||||
auto alpha_cursor_img = make_cursor_alpha_image(img_data, shape_info);
|
||||
auto xor_cursor_img = make_cursor_xor_image(img_data, shape_info);
|
||||
|
||||
D3D11_SUBRESOURCE_DATA data {
|
||||
std::begin(cursor_img),
|
||||
4 * shape_info.Width,
|
||||
0
|
||||
};
|
||||
|
||||
// Create texture for cursor
|
||||
D3D11_TEXTURE2D_DESC t {};
|
||||
t.Width = shape_info.Width;
|
||||
t.Height = cursor_img.size() / data.SysMemPitch;
|
||||
t.MipLevels = 1;
|
||||
t.ArraySize = 1;
|
||||
t.SampleDesc.Count = 1;
|
||||
t.Usage = D3D11_USAGE_DEFAULT;
|
||||
t.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
|
||||
t.BindFlags = D3D11_BIND_SHADER_RESOURCE;
|
||||
|
||||
texture2d_t texture;
|
||||
auto status = device->CreateTexture2D(&t, &data, &texture);
|
||||
if(FAILED(status)) {
|
||||
BOOST_LOG(error) << "Failed to create mouse texture [0x"sv << util::hex(status).to_string_view() << ']';
|
||||
if(!set_cursor_texture(device.get(), cursor_alpha, std::move(alpha_cursor_img), shape_info) ||
|
||||
!set_cursor_texture(device.get(), cursor_xor, std::move(xor_cursor_img), shape_info)) {
|
||||
return capture_e::error;
|
||||
}
|
||||
|
||||
// Free resources before allocating on the next line.
|
||||
cursor.input_res.reset();
|
||||
status = device->CreateShaderResourceView(texture.get(), nullptr, &cursor.input_res);
|
||||
if(FAILED(status)) {
|
||||
BOOST_LOG(error) << "Failed to create cursor shader resource view [0x"sv << util::hex(status).to_string_view() << ']';
|
||||
return capture_e::error;
|
||||
}
|
||||
|
||||
cursor.set_texture(t.Width, t.Height, std::move(texture));
|
||||
}
|
||||
|
||||
if(frame_info.LastMouseUpdateTime.QuadPart) {
|
||||
cursor.set_pos(frame_info.PointerPosition.Position.x, frame_info.PointerPosition.Position.y, frame_info.PointerPosition.Visible);
|
||||
cursor_alpha.set_pos(frame_info.PointerPosition.Position.x, frame_info.PointerPosition.Position.y, frame_info.PointerPosition.Visible);
|
||||
cursor_xor.set_pos(frame_info.PointerPosition.Position.x, frame_info.PointerPosition.Position.y, frame_info.PointerPosition.Visible);
|
||||
}
|
||||
|
||||
if(frame_update_flag) {
|
||||
@ -850,21 +935,29 @@ capture_e display_vram_t::snapshot(platf::img_t *img_base, std::chrono::millisec
|
||||
device_ctx->CopyResource(img->capture_texture.get(), last_frame_copy.get());
|
||||
}
|
||||
|
||||
if(cursor.visible && cursor_visible) {
|
||||
D3D11_VIEWPORT view {
|
||||
0.0f, 0.0f,
|
||||
(float)width, (float)height,
|
||||
0.0f, 1.0f
|
||||
};
|
||||
|
||||
if((cursor_alpha.visible || cursor_xor.visible) && cursor_visible) {
|
||||
device_ctx->VSSetShader(scene_vs.get(), nullptr, 0);
|
||||
device_ctx->PSSetShader(scene_ps.get(), nullptr, 0);
|
||||
device_ctx->RSSetViewports(1, &view);
|
||||
device_ctx->PSSetShaderResources(0, 1, &cursor.input_res);
|
||||
device_ctx->OMSetRenderTargets(1, &img->capture_rt, nullptr);
|
||||
device_ctx->OMSetBlendState(blend_enable.get(), nullptr, 0xFFFFFFFFu);
|
||||
device_ctx->RSSetViewports(1, &cursor.cursor_view);
|
||||
device_ctx->Draw(3, 0);
|
||||
|
||||
if(cursor_alpha.texture.get()) {
|
||||
// Perform an alpha blending operation
|
||||
device_ctx->OMSetBlendState(blend_alpha.get(), nullptr, 0xFFFFFFFFu);
|
||||
|
||||
device_ctx->PSSetShaderResources(0, 1, &cursor_alpha.input_res);
|
||||
device_ctx->RSSetViewports(1, &cursor_alpha.cursor_view);
|
||||
device_ctx->Draw(3, 0);
|
||||
}
|
||||
|
||||
if(cursor_xor.texture.get()) {
|
||||
// Perform an invert blending without touching alpha values
|
||||
device_ctx->OMSetBlendState(blend_invert.get(), nullptr, 0x00FFFFFFu);
|
||||
|
||||
device_ctx->PSSetShaderResources(0, 1, &cursor_xor.input_res);
|
||||
device_ctx->RSSetViewports(1, &cursor_xor.cursor_view);
|
||||
device_ctx->Draw(3, 0);
|
||||
}
|
||||
|
||||
device_ctx->OMSetBlendState(blend_disable.get(), nullptr, 0xFFFFFFFFu);
|
||||
}
|
||||
|
||||
@ -906,10 +999,11 @@ int display_vram_t::init(int framerate, const std::string &display_name) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
blend_enable = make_blend(device.get(), true);
|
||||
blend_disable = make_blend(device.get(), false);
|
||||
blend_alpha = make_blend(device.get(), true, false);
|
||||
blend_invert = make_blend(device.get(), true, true);
|
||||
blend_disable = make_blend(device.get(), false, false);
|
||||
|
||||
if(!blend_disable || !blend_enable) {
|
||||
if(!blend_disable || !blend_alpha || !blend_invert) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
@ -726,6 +726,9 @@ public:
|
||||
buffer_t(buffer_t &&o) noexcept : _els { o._els }, _buf { std::move(o._buf) } {
|
||||
o._els = 0;
|
||||
}
|
||||
buffer_t(const buffer_t &o) : _els { o._els }, _buf { std::make_unique<T[]>(_els) } {
|
||||
std::copy(o.begin(), o.end(), begin());
|
||||
}
|
||||
buffer_t &operator=(buffer_t &&o) noexcept {
|
||||
std::swap(_els, o._els);
|
||||
std::swap(_buf, o._buf);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user