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TakeSourceScreenshot: add width and height optional parameters

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This commit is contained in:
Stéphane L 2019-04-26 21:14:48 +02:00
parent f955d81c5e
commit 2e3a24d32e
1 changed files with 26 additions and 3 deletions
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29
src/WSRequestHandler_Sources.cpp
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@ -1343,6 +1343,8 @@ HandlerResponse WSRequestHandler::HandleSetSourceFilterSettings(WSRequestHandler
*
* @param {String} `sourceName` Source name
* @param {String} `pictureFormat` Format of the encoded picture. Can be "png", "jpg", "jpeg" or "bmp" (or any other value supported by Qt's Image module)
* @param {int (optional)} `width` Screenshot width. Defaults to the source's base width.
* @param {int (optional)} `height` Screenshot height. Defaults to the source's base heigh.
*
* @return {String} `sourceName` Source name
* @return {String} `img` Image Data URI
@ -1371,8 +1373,29 @@ HandlerResponse WSRequestHandler::HandleTakeSourceScreenshot(WSRequestHandler* r
return req->SendErrorResponse(errorMessage.toUtf8());
}
const uint32_t imgWidth = obs_source_get_base_width(source);
const uint32_t imgHeight = obs_source_get_base_height(source);
const uint32_t sourceWidth = obs_source_get_base_width(source);
const uint32_t sourceHeight = obs_source_get_base_height(source);
const double sourceAspectRatio = ((double)sourceWidth / (double)sourceHeight);
uint32_t imgWidth = sourceWidth;
uint32_t imgHeight = sourceHeight;
if (req->hasField("width")) {
imgWidth = obs_data_get_int(req->data, "width");
if (!req->hasField("height")) {
imgHeight = ((double)imgWidth / sourceAspectRatio);
}
}
if (req->hasField("height")) {
imgHeight = obs_data_get_int(req->data, "height");
if (!req->hasField("width")) {
imgWidth = ((double)imgHeight * sourceAspectRatio);
}
}
QImage sourceImage(imgWidth, imgHeight, QImage::Format::Format_RGBA8888);
sourceImage.fill(0);
@ -1392,7 +1415,7 @@ HandlerResponse WSRequestHandler::HandleTakeSourceScreenshot(WSRequestHandler* r
vec4_zero(&background);
gs_clear(GS_CLEAR_COLOR, &background, 0.0f, 0);
gs_ortho(0.0f, (float)imgWidth, 0.0f, (float)imgHeight, -100.0f, 100.0f);
gs_ortho(0.0f, (float)sourceWidth, 0.0f, (float)sourceHeight, -100.0f, 100.0f);
gs_blend_state_push();
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);