comparison: src/gl/partrenderer.cpp
src/gl/partrenderer.cpp
- changeset 199
- 6988973515d2
- parent 189
- 815fbaae9cb2
- child 200
- ca23936b455b
equal
deleted
inserted
replaced
| 198:eb9d900dc79a | 199:6988973515d2 |
|---|---|
| 350 this->viewMatrix * glm::mat4_cast(this->modelQuaternion), | 350 this->viewMatrix * glm::mat4_cast(this->modelQuaternion), |
| 351 this->projectionMatrix, | 351 this->projectionMatrix, |
| 352 viewportVector); | 352 viewportVector); |
| 353 } | 353 } |
| 354 | 354 |
| 355 ldraw::id_t PartRenderer::pick(const QPoint& where) | 355 ldraw::id_t PartRenderer::pick(QPoint where) |
| 356 { | 356 { |
| 357 // y is flipped, take that into account | |
| 358 where.setY(this->height() - where.y()); | |
| 359 // Since we are dealing with pixel data right from the framebuffer, its size | |
| 360 // will be affected by High DPI scaling. We need to take this into account | |
| 361 // and multiply the pixel positions by the screen pixel scaling factor. | |
| 362 where *= this->devicePixelRatioF(); | |
| 357 const gl::RenderStyle oldRenderStyle = this->renderPreferences.style; | 363 const gl::RenderStyle oldRenderStyle = this->renderPreferences.style; |
| 358 this->renderPreferences.style = gl::RenderStyle::PickScene; | 364 this->renderPreferences.style = gl::RenderStyle::PickScene; |
| 359 this->makeCurrent(); | 365 this->makeCurrent(); |
| 360 this->renderScene(); | 366 this->renderScene(); |
| 361 std::array<GLubyte, 3> data; | 367 std::array<GLubyte, 3> data; |
| 362 this->checkForGLErrors(); | 368 this->checkForGLErrors(); |
| 363 glReadPixels(where.x(), this->height() - where.y(), 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &data[0]); | 369 glfunc.glReadPixels(where.x(), where.y(), 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &data[0]); |
| 364 this->checkForGLErrors(); | 370 this->checkForGLErrors(); |
| 365 this->renderPreferences.style = oldRenderStyle; | 371 this->renderPreferences.style = oldRenderStyle; |
| 366 this->update(); | 372 this->update(); |
| 367 return gl::idFromColor(data); | 373 return gl::idFromColor(data); |
| 368 } | 374 } |
