[vlc-devel] [PATCH 3/6] direct3d11: change the source format to the cropped one when computing position
Steve Lhomme
robux4 at videolabs.io
Thu May 12 12:17:16 CEST 2016
---
modules/video_output/win32/direct3d11.c | 83 +++++++++++++++++++++------------
1 file changed, 54 insertions(+), 29 deletions(-)
diff --git a/modules/video_output/win32/direct3d11.c b/modules/video_output/win32/direct3d11.c
index 8a45f19..c2adcd9 100644
--- a/modules/video_output/win32/direct3d11.c
+++ b/modules/video_output/win32/direct3d11.c
@@ -146,6 +146,7 @@ static void ReleaseQuad(d3d_quad_t *);
static void UpdatePicQuadPosition(vout_display_t *);
static void UpdateQuadOpacity(vout_display_t *, const d3d_quad_t *, float);
+static int Control(vout_display_t *vd, int query, va_list args);
static void Manage(vout_display_t *vd);
/* All the #if USE_DXGI contain an alternative method to setup dx11
@@ -395,7 +396,7 @@ static int Open(vlc_object_t *object)
vd->pool = Pool;
vd->prepare = Prepare;
vd->display = Display;
- vd->control = CommonControl;
+ vd->control = Control;
vd->manage = Manage;
msg_Dbg(vd, "Direct3D11 Open Succeeded");
@@ -624,11 +625,42 @@ static HRESULT UpdateBackBuffer(vout_display_t *vd)
return S_OK;
}
+static void CropStagingFormat(vout_display_t *vd, video_format_t *backup_fmt)
+{
+ if ( vd->sys->stagingQuad.pTexture == NULL )
+ return;
+
+ video_format_Copy( backup_fmt, &vd->source );
+ /* the texture we display is a cropped version of the source */
+ vd->source.i_x_offset = 0;
+ vd->source.i_y_offset = 0;
+ vd->source.i_width = vd->source.i_visible_width;
+ vd->source.i_height = vd->source.i_visible_height;
+}
+
+static void UncropStagingFormat(vout_display_t *vd, video_format_t *backup_fmt)
+{
+ if ( vd->sys->stagingQuad.pTexture == NULL )
+ return;
+ video_format_Copy( &vd->source, backup_fmt );
+}
+
+static int Control(vout_display_t *vd, int query, va_list args)
+{
+ video_format_t core_source;
+ CropStagingFormat( vd, &core_source );
+ int res = CommonControl( vd, query, args );
+ UncropStagingFormat( vd, &core_source );
+ return res;
+}
+
static void Manage(vout_display_t *vd)
{
vout_display_sys_t *sys = vd->sys;
RECT size_before = sys->rect_dest_clipped;
+ video_format_t core_source;
+ CropStagingFormat( vd, &core_source );
CommonManage(vd);
if (RECTWidth(size_before) != RECTWidth(sys->rect_dest_clipped) ||
@@ -641,6 +673,7 @@ static void Manage(vout_display_t *vd)
UpdatePicQuadPosition(vd);
}
+ UncropStagingFormat( vd, &core_source );
}
static void Prepare(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
@@ -652,10 +685,6 @@ static void Prepare(vout_display_t *vd, picture_t *picture, subpicture_t *subpic
{
Direct3D11UnmapTexture(picture);
- D3D11_TEXTURE2D_DESC picDesc, stagingDesc;
- ID3D11Texture2D_GetDesc( sys->picQuad.pTexture, &picDesc );
- ID3D11Texture2D_GetDesc( sys->stagingQuad.pTexture, &stagingDesc );
-
D3D11_BOX box;
box.left = picture->format.i_x_offset;
box.right = picture->format.i_x_offset + picture->format.i_visible_width;
@@ -674,10 +703,10 @@ static void Prepare(vout_display_t *vd, picture_t *picture, subpicture_t *subpic
#ifdef HAVE_ID3D11VIDEODECODER
if (picture->format.i_chroma == VLC_CODEC_D3D11_OPAQUE) {
D3D11_BOX box;
- box.left = 0;
- box.right = picture->format.i_visible_width;
- box.top = 0;
- box.bottom = picture->format.i_visible_height;
+ box.left = picture->format.i_x_offset;
+ box.right = picture->format.i_x_offset + picture->format.i_visible_width;
+ box.top = picture->format.i_y_offset;
+ box.bottom = picture->format.i_y_offset + picture->format.i_visible_height;
box.back = 1;
box.front = 0;
@@ -1047,7 +1076,10 @@ static int Direct3D11Open(vout_display_t *vd, video_format_t *fmt)
AllocQuad( vd, fmt, &sys->stagingQuad, &sys->picQuadConfig, NULL, false );
}
+ video_format_t core_source;
+ CropStagingFormat( vd, &core_source );
UpdateRects(vd, NULL, NULL, true);
+ UncropStagingFormat( vd, &core_source );
if (Direct3D11CreateResources(vd, fmt)) {
msg_Err(vd, "Failed to allocate resources");
@@ -1094,27 +1126,17 @@ static void UpdatePicQuadPosition(vout_display_t *vd)
int i_width = RECTWidth(sys->rect_dest_clipped);
int i_height = RECTHeight(sys->rect_dest_clipped);
- if ( sys->stagingQuad.pTexture != NULL )
- {
- sys->picQuad.cropViewport.Width = (FLOAT) i_width;
- sys->picQuad.cropViewport.Height = (FLOAT) i_height;
- sys->picQuad.cropViewport.TopLeftX = 0.0f;
- sys->picQuad.cropViewport.TopLeftY = 0.0f;
- }
- else
- {
- int i_top = sys->rect_src_clipped.top * i_height;
- i_top /= vd->source.i_visible_height;
- i_top -= sys->rect_dest_clipped.top;
- int i_left = sys->rect_src_clipped.left * i_width;
- i_left /= vd->source.i_visible_width;
- i_left -= sys->rect_dest_clipped.left;
+ int i_top = sys->rect_src_clipped.top * i_height;
+ i_top /= vd->source.i_visible_height;
+ i_top -= sys->rect_dest_clipped.top;
+ int i_left = sys->rect_src_clipped.left * i_width;
+ i_left /= vd->source.i_visible_width;
+ i_left -= sys->rect_dest_clipped.left;
- sys->picQuad.cropViewport.Width = (FLOAT) vd->source.i_width * i_width / vd->source.i_visible_width;
- sys->picQuad.cropViewport.Height = (FLOAT) vd->source.i_height * i_height / vd->source.i_visible_height;
- sys->picQuad.cropViewport.TopLeftX = -i_left;
- sys->picQuad.cropViewport.TopLeftY = -i_top;
- }
+ sys->picQuad.cropViewport.Width = (FLOAT) vd->source.i_width * i_width / vd->source.i_visible_width;
+ sys->picQuad.cropViewport.Height = (FLOAT) vd->source.i_height * i_height / vd->source.i_visible_height;
+ sys->picQuad.cropViewport.TopLeftX = -i_left;
+ sys->picQuad.cropViewport.TopLeftY = -i_top;
sys->picQuad.cropViewport.MinDepth = 0.0f;
sys->picQuad.cropViewport.MaxDepth = 1.0f;
@@ -1305,7 +1327,10 @@ static int Direct3D11CreateResources(vout_display_t *vd, video_format_t *fmt)
}
ID3D11PixelShader_Release(pPicQuadShader);
+ video_format_t core_source;
+ CropStagingFormat( vd, &core_source );
UpdatePicQuadPosition(vd);
+ UncropStagingFormat( vd, &core_source );
D3D11_SAMPLER_DESC sampDesc;
memset(&sampDesc, 0, sizeof(sampDesc));
--
2.8.1
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