Differential D26371 Diff 76625 plugins/platforms/drm/egl_gbm_backend.cpp

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plugins/platforms/drm/egl_gbm_backend.cpp

Show First 20 Lines • Show All 249 Lines • ▼ Show 20 Line(s)245{
250 ); 250​ );
251 if (it == m_outputs.end()) { 251​ if (it == m_outputs.end()) {
252 return; 252​ return;
253 } 253​ }
254 cleanupOutput(*it); 254​ cleanupOutput(*it);
255 m_outputs.erase(it); 255​ m_outputs.erase(it);
256} 256​}
257 257​
258const char *vertexShader = R"SHADER( ​
259 #version 130 ​
260 uniform mat4 modelViewProjectionMatrix; ​
261 uniform mat4 rotationMatrix; ​
262 ​
263 in vec2 vertex; ​
264 in vec2 texCoord; ​
265 ​
266 out vec2 TexCoord; ​
267 ​
268 void main() { ​
269 gl_Position = rotationMatrix * vec4(vertex.x, vertex.y, 0.0, 1.0); ​
270 TexCoord = texCoord; ​
271 } ​
272)SHADER"; ​
273 ​
274const char *fragmentShader = R"SHADER( ​
275 #version 130 ​
276 uniform sampler2D sampler; ​
277 ​
278 in vec2 TexCoord; ​
279 out vec4 fragColor; ​
280 ​
281 void main() { ​
282 fragColor = texture(sampler, TexCoord); ​
283 } ​
284)SHADER"; ​
285 ​
286const float vertices[] = { 258​const float vertices[] = {
287 -1.0f, 1.0f, 259​ -1.0f, 1.0f,
288 -1.0f, -1.0f, 260​ -1.0f, -1.0f,
289 1.0f, -1.0f, 261​ 1.0f, -1.0f,
290 262​
291 -1.0f, 1.0f, 263​ -1.0f, 1.0f,
292 1.0f, -1.0f, 264​ 1.0f, -1.0f,
293 1.0f, 1.0f, 265​ 1.0f, 1.0f,
▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Line(s)307 if(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
337 return false; 309​ return false;
338 } 310​ }
339 311​
340 glBindFramebuffer(GL_FRAMEBUFFER, 0); 312​ glBindFramebuffer(GL_FRAMEBUFFER, 0);
341 GLRenderTarget::setKWinFramebuffer(0); 313​ GLRenderTarget::setKWinFramebuffer(0);
342 return true; 314​ return true;
343} 315​}
344 316​
345bool EglGbmBackend::initRenderTarget(Output &output) 317​void EglGbmBackend::initRenderTarget(Output &output)
346{ 318​{
347 if (output.render.shader) { 319​ if (output.render.vbo) {
348 // Already initialized. 320​ // Already initialized.
349 return true; 321​ return;
350 } ​
351 std::shared_ptr<GLShader> shader(ShaderManager::instance()->loadShaderFromCode(vertexShader, ​
352 fragmentShader)); ​
353 if (!shader) { ​
354 qCWarning(KWIN_DRM) << "Error creating render shader."; ​
355 return false; ​
356 } 322​ }
357 ​
358 output.render.shader = shader; ​
359 ​
360 std::shared_ptr<GLVertexBuffer> vbo(new GLVertexBuffer(KWin::GLVertexBuffer::Static)); 323​ std::shared_ptr<GLVertexBuffer> vbo(new GLVertexBuffer(KWin::GLVertexBuffer::Static));
361 vbo->setData(6, 2, vertices, texCoords); 324​ vbo->setData(6, 2, vertices, texCoords);
362 output.render.vbo = vbo; 325​ output.render.vbo = vbo;
363 return true; ​
364} 326​}
365 327​
366void EglGbmBackend::renderFramebufferToSurface(Output &output) 328​void EglGbmBackend::renderFramebufferToSurface(Output &output)
367{ 329​{
368 if (!output.render.framebuffer) { 330​ if (!output.render.framebuffer) {
369 // No additional render target. 331​ // No additional render target.
370 return; 332​ return;
371 } 333​ }
372 if (!initRenderTarget(output)) { 334​ initRenderTarget(output);
373 return; ​
374 } ​
375 335​
376 glBindFramebuffer(GL_FRAMEBUFFER, 0); 336​ glBindFramebuffer(GL_FRAMEBUFFER, 0);
377 GLRenderTarget::setKWinFramebuffer(0); 337​ GLRenderTarget::setKWinFramebuffer(0);
378 338​
379 const auto size = output.output->modeSize(); 339​ const auto size = output.output->modeSize();
380 glViewport(0, 0, size.width(), size.height()); 340​ glViewport(0, 0, size.width(), size.height());
381 341​
382 ShaderBinder binder(output.render.shader.get()); 342​ auto shader = ShaderManager::instance()->pushShader(ShaderTrait::MapTexture);
343​
383 QMatrix4x4 rotationMatrix; 344​ QMatrix4x4 rotationMatrix;
384 rotationMatrix.rotate(output.output->rotation(), 0, 0, 1); 345​ rotationMatrix.rotate(output.output->rotation(), 0, 0, 1);
385 output.render.shader->setUniform("rotationMatrix", rotationMatrix); 346​ shader->setUniform(GLShader::ModelViewProjectionMatrix, rotationMatrix);
386 347​
387 glBindTexture(GL_TEXTURE_2D, output.render.texture); 348​ glBindTexture(GL_TEXTURE_2D, output.render.texture);
388 output.render.vbo->render(GL_TRIANGLES); 349​ output.render.vbo->render(GL_TRIANGLES);
350​ ShaderManager::instance()->popShader();
389} 351​}
390 352​
391void EglGbmBackend::prepareRenderFramebuffer(const Output &output) const 353​void EglGbmBackend::prepareRenderFramebuffer(const Output &output) const
392{ 354​{
393 // When render.framebuffer is 0 we may just reset to the screen framebuffer. 355​ // When render.framebuffer is 0 we may just reset to the screen framebuffer.
394 glBindFramebuffer(GL_FRAMEBUFFER, output.render.framebuffer); 356​ glBindFramebuffer(GL_FRAMEBUFFER, output.render.framebuffer);
395 GLRenderTarget::setKWinFramebuffer(output.render.framebuffer); 357​ GLRenderTarget::setKWinFramebuffer(output.render.framebuffer);
396} 358​}
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