OpenGL 3.x screenshots are now processed

src/qt/qt_openglrenderer.cpp

@@ -1612,95 +1612,35 @@ OpenGLRenderer::render()
         render_pass(&data);
     }
 
-    if (1) {
+    if (monitors[r_monitor_index].mon_screenshots) {
-        // if (video_focus_dim && !(SDL_GetWindowFlags(window) & SDL_WINDOW_INPUT_FOCUS)) {
+        int width = destination.width() * devicePixelRatio(), height = destination.height() * devicePixelRatio();
-#if 0
+        char path[1024];
-        if (0) {
+        char fn[256];
-            struct shader_pass *pass = &active_shader->fs_color;
+    
-            GLfloat             r    = 0;
+        memset(fn, 0, sizeof(fn));
-            GLfloat             g    = 0;
+        memset(path, 0, sizeof(path));
-            GLfloat             b    = 0;
+    
-            GLfloat             a    = 0x80 / (float) 0xff;
+        path_append_filename(path, usr_path, SCREENSHOT_PATH);
+    
+        if (!plat_dir_check(path))
+            plat_dir_create(path);
+    
+        path_slash(path);
+        strcat(path, "Monitor_");
+        snprintf(&path[strlen(path)], 42, "%d_", r_monitor_index + 1);
+    
+        plat_tempfile(fn, NULL, (char*)".png");
+        strcat(path, fn);
 
-            GLfloat colors[] = { r, g, b, a, r, g, b, a, r, g, b, a, r, g, b, a };
+        unsigned char *rgba = (unsigned char *)calloc(1, width * height * 4);
+        
+        glw.glFinish();
+        glw.glReadPixels(window_rect.x, window_rect.y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, rgba);
 
-            glw.glBindVertexArray(pass->vertex_array);
+        QImage image(rgba, width, height, QImage::Format_RGBA8888);
-
+        image.mirrored(false, true).save(path, "png");
-            glw.glBindBuffer(GL_ARRAY_BUFFER, pass->vbo.color);
+        monitors[r_monitor_index].mon_screenshots--;
-            glw.glBufferSubData(GL_ARRAY_BUFFER, 0, 16 * sizeof(GLfloat), colors);
+        free(rgba);
-            glw.glBindBuffer(GL_ARRAY_BUFFER, 0);
-
-            memset(&data, 0, sizeof(struct render_data));
-            data.pass        = -3;
-            data.shader_pass = pass;
-            data.texture     = 0;
-            data.output_size = orig_output_size;
-            data.orig_pass   = orig;
-
-            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-            glEnable(GL_BLEND);
-            render_pass(&data);
-            glDisable(GL_BLEND);
-        }
-
-                if (flash.enabled) {
-                        struct shader_pass *pass = &active_shader->fs_color;
-                        GLfloat r = (flash.color[0] & 0xff) / (float)0xff;
-                        GLfloat g = (flash.color[1] & 0xff) / (float)0xff;
-                        GLfloat b = (flash.color[2] & 0xff) / (float)0xff;
-                        GLfloat a = (flash.color[3] & 0xff) / (float)0xff;
-
-                        GLfloat colors[] = {r, g, b, a, r, g, b, a, r, g, b, a, r, g, b, a};
-
-                        glw.glBindVertexArray(pass->vertex_array);
-
-                        glw.glBindBuffer(GL_ARRAY_BUFFER, pass->vbo.color);
-                        glw.glBufferSubData(GL_ARRAY_BUFFER, 0, 16 * sizeof(GLfloat), colors);
-                        glw.glBindBuffer(GL_ARRAY_BUFFER, 0);
-
-                        memset(&data, 0, sizeof(struct render_data));
-                        data.pass = -3;
-                        data.shader_pass = pass;
-                        data.texture = 0;
-                        data.output_size = orig_output_size;
-                        data.orig_pass = orig;
-
-                        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-                        glEnable(GL_BLEND);
-                        render_pass(&data);
-                        glDisable(GL_BLEND);
-                }
-#endif
-    } else {
-#if 0
-                take_screenshot = 0;
-
-                int width = window_rect.w;
-                int height = window_rect.h;
-
-                SDL_GetWindowSize(window, &width, &height);
-
-                unsigned char *rgba = (unsigned char *)malloc(width * height * 4);
-
-                glFinish();
-                glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, rgba);
-
-                int x, y;
-                unsigned char *rgb = (unsigned char *)malloc(width * height * 3);
-
-                for (x = 0; x < width; ++x) {
-                        for (y = 0; y < height; ++y) {
-                                rgb[(y * width + x) * 3 + 0] = rgba[((height - y - 1) * width + x) * 4 + 0];
-                                rgb[(y * width + x) * 3 + 1] = rgba[((height - y - 1) * width + x) * 4 + 1];
-                                rgb[(y * width + x) * 3 + 2] = rgba[((height - y - 1) * width + x) * 4 + 2];
-                        }
-                }
-
-                screenshot_taken(rgb, width, height);
-
-                free(rgb);
-                free(rgba);
-#endif
     }
 
     glw.glDisable(GL_FRAMEBUFFER_SRGB);

src/qt/qt_renderercommon.hpp

@@ -36,6 +36,8 @@ public:
     virtual void reloadOptions() { }
     /* Make the renderer reload itself */
     virtual bool reloadRendererOption() { return false; }
+    /* Should the renderer take screenshots itself? */
+    virtual bool rendererTakeScreenshot() { return false; }
 
     int      r_monitor_index = 0;
 

src/qt/qt_rendererstack.cpp

@@ -63,6 +63,7 @@ RendererStack::RendererStack(QWidget *parent, int monitor_index)
     : QStackedWidget(parent)
     , ui(new Ui::RendererStack)
 {
+    rendererTakesScreenshots = false;
 #ifdef Q_OS_WINDOWS
     int raw = 1;
 #else
@@ -305,6 +306,7 @@ RendererStack::switchRenderer(Renderer renderer)
 void
 RendererStack::createRenderer(Renderer renderer)
 {
+    rendererTakesScreenshots = false;
     switch (renderer) {
         default:
         case Renderer::Software:
@@ -360,6 +362,7 @@ RendererStack::createRenderer(Renderer renderer)
         case Renderer::OpenGL3:
             {
                 this->createWinId();
+                this->rendererTakesScreenshots = true;
                 auto hw        = new OpenGLRenderer(this);
                 rendererWindow = hw;
                 connect(this, &RendererStack::blitToRenderer, hw, &OpenGLRenderer::onBlit, Qt::QueuedConnection);
@@ -424,6 +427,8 @@ RendererStack::createRenderer(Renderer renderer)
 
     this->setStyleSheet("background-color: black");
 
+    rendererWindow->r_monitor_index = m_monitor_index;
+
     currentBuf = 0;
 
     if (renderer != Renderer::OpenGL3 && renderer != Renderer::Vulkan && renderer != Renderer::OpenGL3PCem) {
@@ -454,7 +459,7 @@ RendererStack::blit(int x, int y, int w, int h)
         video_copy(scanline, &(monitors[m_monitor_index].target_buffer->line[y1][x]), w * 4);
     }
 
-    if (monitors[m_monitor_index].mon_screenshots) {
+    if (monitors[m_monitor_index].mon_screenshots && !rendererTakesScreenshots) {
         video_screenshot_monitor((uint32_t *) imagebits, x, y, 2048, m_monitor_index);
     }
     video_blit_complete_monitor(m_monitor_index);

src/qt/qt_rendererstack.hpp

@@ -15,6 +15,8 @@
 
 #include "qt_renderercommon.hpp"
 
+#include <atomic>
+
 namespace Ui {
 class RendererStack;
 }
@@ -110,6 +112,8 @@ private:
 
     RendererCommon          *rendererWindow { nullptr };
     std::unique_ptr<QWidget> current;
+
+    std::atomic_bool rendererTakesScreenshots;
 };
 
 #endif // QT_RENDERERCONTAINER_HPP