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effects/backgroundcontrast/contrast.cpp
| Show First 20 Lines • Show All 444 Lines • ▼ Show 20 Line(s) | 434 | { | |||
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| 445 | // Create a scratch texture and copy the area in the back buffer that we're | 445 | // Create a scratch texture and copy the area in the back buffer that we're | ||
| 446 | // going to blur into it | 446 | // going to blur into it | ||
| 447 | GLTexture scratch(GL_RGBA8, r.width() * scale, r.height() * scale); | 447 | GLTexture scratch(GL_RGBA8, r.width() * scale, r.height() * scale); | ||
| 448 | scratch.setFilter(GL_LINEAR); | 448 | scratch.setFilter(GL_LINEAR); | ||
| 449 | scratch.setWrapMode(GL_CLAMP_TO_EDGE); | 449 | scratch.setWrapMode(GL_CLAMP_TO_EDGE); | ||
| 450 | scratch.bind(); | 450 | scratch.bind(); | ||
| 451 | 451 | | |||
| 452 | const QRect sg = GLRenderTarget::virtualScreenGeometry(); | 452 | const QRect sg = GLRenderTarget::virtualScreenGeometry(); | ||
| 453 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, (r.x() - sg.x()) * scale, (sg.height() - sg.y() - r.y() - r.height()) * scale, | 453 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, (r.x() - sg.x()) * scale, (sg.height() - (r.y() - sg.y() + r.height())) * scale, | ||
| 454 | scratch.width(), scratch.height()); | 454 | scratch.width(), scratch.height()); | ||
| 455 | 455 | | |||
| 456 | // Draw the texture on the offscreen framebuffer object, while blurring it horizontally | 456 | // Draw the texture on the offscreen framebuffer object, while blurring it horizontally | ||
| 457 | 457 | | |||
| 458 | shader->setColorMatrix(m_colorMatrices.value(w)); | 458 | shader->setColorMatrix(m_colorMatrices.value(w)); | ||
| 459 | shader->bind(); | 459 | shader->bind(); | ||
| 460 | 460 | | |||
| 461 | 461 | | |||
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