Revert "Remove useless texture size queries for every frame in displa…

…y_ram_t"

This reverts commit ebe01ce.

Looks like this commit undos the fix for #453, see also PRs #649 and #884.

This also adds a comment so hopefully it doesn't get removed again in
the future (or a proper fix is found).

src/platform/linux/kmsgrab.cpp

@@ -1259,11 +1259,18 @@ namespace platf {
 
         auto &rgb = *rgb_opt;
 
+        gl::ctx.BindTexture(GL_TEXTURE_2D, rgb->tex[0]);
+
+        // Don't remove these lines, see https://github.com/LizardByte/Sunshine/issues/453
+        int w, h;
+        gl::ctx.GetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
+        gl::ctx.GetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
+        BOOST_LOG(debug) << "width and height: w "sv << w << " h "sv << h;
+
         if (!pull_free_image_cb(img_out)) {
           return platf::capture_e::interrupted;
         }
 
-        gl::ctx.BindTexture(GL_TEXTURE_2D, rgb->tex[0]);
         gl::ctx.GetTextureSubImage(rgb->tex[0], 0, img_offset_x, img_offset_y, 0, width, height, 1, GL_BGRA, GL_UNSIGNED_BYTE, img_out->height * img_out->row_pitch, img_out->data);
 
         if (cursor && captured_cursor.visible) {

src/platform/linux/wlgrab.cpp

@@ -182,6 +182,13 @@ namespace wl {
       }
 
       gl::ctx.BindTexture(GL_TEXTURE_2D, (*rgb_opt)->tex[0]);
+
+      // Don't remove these lines, see https://github.com/LizardByte/Sunshine/issues/453
+      int w, h;
+      gl::ctx.GetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
+      gl::ctx.GetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
+      BOOST_LOG(debug) << "width and height: w "sv << w << " h "sv << h;
+
       gl::ctx.GetTextureSubImage((*rgb_opt)->tex[0], 0, 0, 0, 0, width, height, 1, GL_BGRA, GL_UNSIGNED_BYTE, img_out->height * img_out->row_pitch, img_out->data);
       gl::ctx.BindTexture(GL_TEXTURE_2D, 0);