Remap BGRA textures during remote replay if necessary

With GL driver or if the required GLES extension is missing, than we
display BGRA textures as RGBA.

renderdoc/core/replay_proxy.cpp

@@ -1733,6 +1733,10 @@ void ReplayProxy::RemapProxyTextureIfNeeded(TextureDescription &tex, GetTextureD
       params.remap = RemapTexture::RGBA8;
   }
 
+  // since the texture type is unsupported, remove the bgraOrder flag and remap it to RGBA
+  if(tex.format.bgraOrder && m_APIProps.localRenderer == GraphicsAPI::OpenGL)
+    tex.format.bgraOrder = false;
+
   switch(params.remap)
   {
     case RemapTexture::NoRemap: RDCERR("IsTextureSupported == false, but we have no remap"); break;

renderdoc/driver/gl/gl_common.h

@@ -450,6 +450,7 @@ extern bool IsGLES;
   EXT_TO_CHECK(99, 99, EXT_clip_cull_distance)                   \
   EXT_TO_CHECK(99, 99, EXT_multisample_compatibility)            \
   EXT_TO_CHECK(99, 99, EXT_read_format_bgra)                     \
+  EXT_TO_CHECK(99, 99, EXT_texture_format_BGRA8888)              \
   EXT_TO_CHECK(99, 99, NV_polygon_mode)                          \
   EXT_TO_CHECK(99, 99, NV_read_depth)                            \
   EXT_TO_CHECK(99, 99, NV_read_stencil)                          \

renderdoc/driver/gl/gl_replay.cpp

@@ -3141,6 +3141,11 @@ bool GLReplay::IsTextureSupported(const ResourceFormat &format)
   if(format.type == ResourceFormatType::ASTC)
     return false;
 
+  // BGRA is not accepted as an internal format in case of GL
+  // EXT_texture_format_BGRA8888 is required for creating BGRA proxy textures in case of GLES
+  if(format.bgraOrder)
+    return IsGLES && HasExt[EXT_texture_format_BGRA8888];
+
   return true;
 }