Fix blank video for vaapi

sunshine/platform/linux/graphics.cpp

@@ -640,7 +640,9 @@ std::optional<sws_t> sws_t::make(int in_width, int in_height, int out_width, int
 }
 
 void sws_t::load_ram(platf::img_t &img) {
-  gl::ctx.BindTexture(GL_TEXTURE_2D, tex[0]);
+  loaded_texture = tex[0];
+
+  gl::ctx.BindTexture(GL_TEXTURE_2D, loaded_texture);
   gl::ctx.TexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, img.width, img.height, GL_BGRA, GL_UNSIGNED_BYTE, img.data);
 }
 

sunshine/platform/linux/graphics.h

@@ -12,9 +12,10 @@
 #include "sunshine/platform/common.h"
 #include "sunshine/utility.h"
 
-#define SUNSHINE_STRINGIFY(x) #x
-#define gl_drain_errors_helper(x) gl::drain_errors("line " SUNSHINE_STRINGIFY(x))
-#define gl_drain_errors gl_drain_errors_helper(__LINE__)
+#define SUNSHINE_STRINGIFY_HELPER(x) #x
+#define SUNSHINE_STRINGIFY(x) SUNSHINE_STRINGIFY_HELPER(x)
+#define gl_drain_errors_helper(x) gl::drain_errors(x)
+#define gl_drain_errors gl_drain_errors_helper(__FILE__ ":" SUNSHINE_STRINGIFY(__LINE__))
 
 extern "C" int close(int __fd);
 

sunshine/platform/linux/kmsgrab.cpp

@@ -452,7 +452,7 @@ public:
         fb_fd.el,
         img_width,
         img_height,
-        0,
+        offset,
         pitch,
       });
 
@@ -530,7 +530,6 @@ public:
   }
 
   int dummy_img(platf::img_t *img) override {
-    snapshot(img, 1s, false);
     return 0;
   }