maxwell_dma: use fallback if remapping is enabled

src/video_core/engines/maxwell_dma.cpp

@@ -134,7 +134,8 @@ void MaxwellDMA::CopyBlockLinearToPitch() {
 
     // Deswizzle the input and copy it over.
     UNIMPLEMENTED_IF(regs.launch_dma.remap_enable != 0);
-    const u32 bytes_per_pixel = regs.pitch_out / regs.line_length_in;
+    const u32 bytes_per_pixel =
+        regs.launch_dma.remap_enable ? regs.pitch_out / regs.line_length_in : 1;
     const Parameters& src_params = regs.src_params;
     const u32 width = src_params.width;
     const u32 height = src_params.height;
@@ -166,7 +167,8 @@ void MaxwellDMA::CopyPitchToBlockLinear() {
     UNIMPLEMENTED_IF(regs.launch_dma.remap_enable != 0);
 
     const auto& dst_params = regs.dst_params;
-    const u32 bytes_per_pixel = regs.pitch_in / regs.line_length_in;
+    const u32 bytes_per_pixel =
+        regs.launch_dma.remap_enable ? regs.pitch_in / regs.line_length_in : 1;
     const u32 width = dst_params.width;
     const u32 height = dst_params.height;
     const u32 depth = dst_params.depth;
@@ -210,7 +212,8 @@ void MaxwellDMA::CopyPitchToBlockLinear() {
 }
 
 void MaxwellDMA::FastCopyBlockLinearToPitch() {
-    const u32 bytes_per_pixel = regs.pitch_out / regs.line_length_in;
+    const u32 bytes_per_pixel =
+        regs.launch_dma.remap_enable ? regs.pitch_out / regs.line_length_in : 1;
     const size_t src_size = GOB_SIZE;
     const size_t dst_size = static_cast<size_t>(regs.pitch_out) * regs.line_count;
     u32 pos_x = regs.src_params.origin.x;

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -563,11 +563,12 @@ void RasterizerOpenGL::SyncViewport() {
         flags[Dirty::FrontFace] = false;
 
         GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
-        bool flip_faces = true;
-        if (regs.screen_y_control.triangle_rast_flip != 0) {
+        bool flip_faces = false;
+        if (regs.screen_y_control.triangle_rast_flip != 0 &&
+            regs.viewport_transform[0].scale_y < 0.0f) {
             flip_faces = !flip_faces;
         }
-        if (regs.viewport_transform[0].scale_y < 0.0f) {
+        if (regs.viewport_transform[0].scale_z < 0.0f) {
             flip_faces = !flip_faces;
         }
         if (flip_faces) {