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Decompile fn_01894 (DeviceOwnerDX7::CreateSurfaces)

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Batch #15581 by Yommy: 0 byte-identical, 1 confirmed by peer review.

- fn_01894 DeviceOwnerDX7::CreateSurfaces: logic confirmed by peer review

Peer-reviewed-by: ragnarok-clanker, eAthena
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
This commit is contained in:
ragnarok-clanker 2026-11-10 09:28:56 +00:00
commit 7d2a55bd4e
1 changed files with 34 additions and 19 deletions
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53
Source/Render/DX7/DeviceOwnerDX7.cpp
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@ -126,7 +126,6 @@ DeviceOwnerDX7::~DeviceOwnerDX7() {
// OFFSET: 0x005498A0
// FUNCTION: fn_01894
HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags) {
const bool buffered = (flags & 2) != 0;
DDSURFACEDESC2 description;
HRESULT status;
@ -135,7 +134,11 @@ HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags)
this->width = this->source.right;
this->height = this->source.bottom;
this->destination = this->source;
const DWORD modeFlags = this->width == 320 && this->height == 200 && mode->ddpfPixelFormat.dwRGBBitCount == 8 ? DDSDM_STANDARDVGAMODE : 0;
DWORD modeFlags = 0;
if (this->width == 320 && this->height == 200 && mode->ddpfPixelFormat.dwRGBBitCount == 8) {
modeFlags = DDSDM_STANDARDVGAMODE;
}
if (FAILED(this->draw->SetDisplayMode(this->width, this->height, mode->ddpfPixelFormat.dwRGBBitCount, mode->dwRefreshRate, modeFlags))) {
return DeviceError(9);
@ -144,7 +147,7 @@ HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags)
SurfaceDescription(&description, DDSD_CAPS, 0);
description.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_3DDEVICE;
if (buffered) {
if (flags & 2) {
description.dwFlags |= DDSD_BACKBUFFERCOUNT;
description.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_3DDEVICE | DDSCAPS_COMPLEX | DDSCAPS_FLIP;
description.dwBackBufferCount = 1;
@ -156,7 +159,7 @@ HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags)
return SurfaceError(status, 7);
}
if (buffered) {
if (flags & 2) {
DDSCAPS2 caps{DDSCAPS_BACKBUFFER};
status = this->primary->GetAttachedSurface(&caps, &this->backBuffer);
@ -164,36 +167,48 @@ HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags)
return SurfaceError(status, 10);
}
}
IDirectDrawClipper* clipper;
if (FAILED(this->draw->CreateClipper(0, &clipper, nullptr))) {
return DeviceError(8);
}
clipper->SetHWnd(0, this->window);
this->primary->SetClipper(clipper);
if (clipper) {
clipper->Release();
clipper = nullptr;
}
} else {
GetClientRect(this->window, &this->source);
this->width = this->source.right;
this->height = this->source.bottom;
this->destination = ClientRectangle(this->window);
SurfaceDescription(&description, DDSD_CAPS, 0);
description.ddsCaps.dwCaps = buffered ? DDSCAPS_PRIMARYSURFACE : DDSCAPS_PRIMARYSURFACE | DDSCAPS_3DDEVICE;
description.ddsCaps.dwCaps = (flags & 2) ? DDSCAPS_PRIMARYSURFACE : DDSCAPS_PRIMARYSURFACE | DDSCAPS_3DDEVICE;
status = this->draw->CreateSurface(&description, &this->primary, nullptr);
if (FAILED(status)) {
return SurfaceError(status, 7);
}
}
IDirectDrawClipper* clipper;
IDirectDrawClipper* clipper;
if (FAILED(this->draw->CreateClipper(0, &clipper, nullptr))) {
return DeviceError(8);
}
if (FAILED(this->draw->CreateClipper(0, &clipper, nullptr))) {
return DeviceError(8);
}
clipper->SetHWnd(0, this->window);
this->primary->SetClipper(clipper);
clipper->SetHWnd(0, this->window);
this->primary->SetClipper(clipper);
if (clipper) {
clipper->Release();
clipper = nullptr;
}
if (clipper) {
clipper->Release();
clipper = nullptr;
}
if (!(flags & 1)) {
if (buffered) {
if (flags & 2) {
description.dwWidth = this->width;
description.dwHeight = this->height;
description.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
@ -221,7 +236,7 @@ HRESULT DeviceOwnerDX7::CreateSurfaces(const DDSURFACEDESC2* mode, DWORD flags)
ChannelMask(this->green, this->greenMask);
ChannelMask(this->blue, this->blueMask);
ChannelMask(this->alpha, this->alphaMask);
this->renderTarget = buffered ? this->backBuffer : this->primary;
this->renderTarget = (flags & 2) ? this->backBuffer : this->primary;
this->renderTarget->AddRef();
SurfaceDescription(&description, DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT, 0);
description.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;