=?UTF-8?Q?J=C3=B3zef=20Kucia=20?=: wined3d: Introduce wined3d_find_closest_matching_adapter_mode().
Alexandre Julliard
julliard at winehq.org
Fri Aug 26 10:18:11 CDT 2016
Module: wine
Branch: master
Commit: 41d29a79f51cca0452fb37db38dc6b6df4b32dc1
URL: http://source.winehq.org/git/wine.git/?a=commit;h=41d29a79f51cca0452fb37db38dc6b6df4b32dc1
Author: Józef Kucia <jkucia at codeweavers.com>
Date: Thu Aug 25 12:22:51 2016 +0200
wined3d: Introduce wined3d_find_closest_matching_adapter_mode().
Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/wined3d/directx.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++
dlls/wined3d/wined3d.spec | 1 +
include/wine/wined3d.h | 2 +
3 files changed, 103 insertions(+)
diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index 9ff88a8..4213df3 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -4199,6 +4199,106 @@ HRESULT CDECL wined3d_enum_adapter_modes(const struct wined3d *wined3d, UINT ada
return WINED3D_OK;
}
+HRESULT CDECL wined3d_find_closest_matching_adapter_mode(const struct wined3d *wined3d,
+ unsigned int adapter_idx, struct wined3d_display_mode *mode)
+{
+ unsigned int i, j, mode_count, matching_mode_count, closest;
+ struct wined3d_display_mode **matching_modes;
+ struct wined3d_display_mode *modes;
+ HRESULT hr;
+
+ TRACE("wined3d %p, adapter_idx %u, mode %p.\n", wined3d, adapter_idx, mode);
+
+ if (!(mode_count = wined3d_get_adapter_mode_count(wined3d, adapter_idx,
+ mode->format_id, WINED3D_SCANLINE_ORDERING_UNKNOWN)))
+ {
+ WARN("Adapter has 0 matching modes.\n");
+ return E_FAIL;
+ }
+
+ if (!(modes = wined3d_calloc(mode_count, sizeof(*modes))))
+ return E_OUTOFMEMORY;
+ if (!(matching_modes = wined3d_calloc(mode_count, sizeof(*matching_modes))))
+ {
+ HeapFree(GetProcessHeap(), 0, modes);
+ return E_OUTOFMEMORY;
+ }
+
+ for (i = 0; i < mode_count; ++i)
+ {
+ if (FAILED(hr = wined3d_enum_adapter_modes(wined3d, adapter_idx,
+ mode->format_id, WINED3D_SCANLINE_ORDERING_UNKNOWN, i, &modes[i])))
+ {
+ HeapFree(GetProcessHeap(), 0, matching_modes);
+ HeapFree(GetProcessHeap(), 0, modes);
+ return hr;
+ }
+ matching_modes[i] = &modes[i];
+ }
+
+ matching_mode_count = mode_count;
+
+ if (mode->scanline_ordering != WINED3D_SCANLINE_ORDERING_UNKNOWN)
+ {
+ for (i = 0, j = 0; i < matching_mode_count; ++i)
+ {
+ if (matching_modes[i]->scanline_ordering == mode->scanline_ordering)
+ matching_modes[j++] = matching_modes[i];
+ }
+ if (j > 0)
+ matching_mode_count = j;
+ }
+
+ if (mode->refresh_rate)
+ {
+ for (i = 0, j = 0; i < matching_mode_count; ++i)
+ {
+ if (matching_modes[i]->refresh_rate == mode->refresh_rate)
+ matching_modes[j++] = matching_modes[i];
+ }
+ if (j > 0)
+ matching_mode_count = j;
+ }
+
+ if (!mode->width || !mode->height)
+ {
+ struct wined3d_display_mode current_mode;
+ if (FAILED(hr = wined3d_get_adapter_display_mode(wined3d, adapter_idx,
+ ¤t_mode, NULL)))
+ {
+ HeapFree(GetProcessHeap(), 0, matching_modes);
+ HeapFree(GetProcessHeap(), 0, modes);
+ return hr;
+ }
+ mode->width = current_mode.width;
+ mode->height = current_mode.height;
+ }
+
+ closest = ~0u;
+ for (i = 0, j = 0; i < matching_mode_count; ++i)
+ {
+ unsigned int d = abs(mode->width - matching_modes[i]->width)
+ + abs(mode->height - matching_modes[i]->height);
+
+ if (closest > d)
+ {
+ closest = d;
+ j = i;
+ }
+ }
+
+ *mode = *matching_modes[j];
+
+ HeapFree(GetProcessHeap(), 0, matching_modes);
+ HeapFree(GetProcessHeap(), 0, modes);
+
+ TRACE("Returning %ux%u@%u %s %#x.\n", mode->width, mode->height,
+ mode->refresh_rate, debug_d3dformat(mode->format_id),
+ mode->scanline_ordering);
+
+ return WINED3D_OK;
+}
+
HRESULT CDECL wined3d_get_adapter_display_mode(const struct wined3d *wined3d, UINT adapter_idx,
struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation)
{
diff --git a/dlls/wined3d/wined3d.spec b/dlls/wined3d/wined3d.spec
index c3899ed..0db371d 100644
--- a/dlls/wined3d/wined3d.spec
+++ b/dlls/wined3d/wined3d.spec
@@ -10,6 +10,7 @@
@ cdecl wined3d_create(long)
@ cdecl wined3d_decref(ptr)
@ cdecl wined3d_enum_adapter_modes(ptr long long long long ptr)
+@ cdecl wined3d_find_closest_matching_adapter_mode(ptr long ptr)
@ cdecl wined3d_get_adapter_count(ptr)
@ cdecl wined3d_get_adapter_display_mode(ptr long ptr ptr)
@ cdecl wined3d_get_adapter_identifier(ptr long long ptr)
diff --git a/include/wine/wined3d.h b/include/wine/wined3d.h
index 1c9b262..bc343ec 100644
--- a/include/wine/wined3d.h
+++ b/include/wine/wined3d.h
@@ -2105,6 +2105,8 @@ ULONG __cdecl wined3d_decref(struct wined3d *wined3d);
HRESULT __cdecl wined3d_enum_adapter_modes(const struct wined3d *wined3d, UINT adapter_idx,
enum wined3d_format_id format_id, enum wined3d_scanline_ordering scanline_ordering,
UINT mode_idx, struct wined3d_display_mode *mode);
+HRESULT __cdecl wined3d_find_closest_matching_adapter_mode(const struct wined3d *wined3d,
+ unsigned int adapter_idx, struct wined3d_display_mode *mode);
UINT __cdecl wined3d_get_adapter_count(const struct wined3d *wined3d);
HRESULT __cdecl wined3d_get_adapter_display_mode(const struct wined3d *wined3d, UINT adapter_idx,
struct wined3d_display_mode *mode, enum wined3d_display_rotation *rotation);
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