graphics: write small GPU-written tiled images back to guest memory behind --readback-tiled-images

Co-authored-by: Dimitar Vagalinski <275970482+overlordxrz-source@users.noreply.github.com>
Co-authored-by: Mr. Big Britches <111622360+MrBigBritches@users.noreply.github.com>

src/common/emulatorConfig.cpp

@@ -185,6 +185,10 @@ bool ReadbackLinearImagesEnabled() {
 	return g_config->readback_linear_images;
 }
 
+bool ReadbackTiledImagesEnabled() {
+	return g_config->readback_tiled_images;
+}
+
 bool SyncRawImageBuffersEnabled() {
 	return g_config->sync_raw_image_buffers;
 }

src/common/emulatorConfig.h

@@ -85,6 +85,7 @@ struct ConfigOptions {
 	bool                   gpu_assisted_validation_enabled = false;
 	bool                   renderdoc_enabled           = false;
 	bool                   readback_linear_images      = false;
+	bool                   readback_tiled_images       = false;
 	bool                   sync_raw_image_buffers      = false;
 	bool                   tessellation_enabled        = false;
 	bool                   trophy_enabled              = true;
@@ -150,6 +151,7 @@ bool GpuAssistedValidationEnabled();
 
 bool RenderDocEnabled();
 bool ReadbackLinearImagesEnabled();
+bool ReadbackTiledImagesEnabled();
 bool SyncRawImageBuffersEnabled();
 bool TessellationEnabled();
 bool TrophyEnabled();