gpulib: clear fb when display is blanked

4 files changed, 32 insertions, 2 deletions

diff --git a/plugins/gpulib/gpu.c b/plugins/gpulib/gpu.c
index 79a5fa4..70847ab 100644
--- a/plugins/gpulib/gpu.c
+++ b/plugins/gpulib/gpu.c
@@ -601,7 +601,16 @@ void GPUupdateLace(void)
     flush_cmd_buffer();
   renderer_flush_queues();
 
-  if (gpu.status.blanking || !gpu.state.fb_dirty)
+  if (gpu.status.blanking) {
+    if (!gpu.state.blanked) {
+      vout_blank();
+      gpu.state.blanked = 1;
+      gpu.state.fb_dirty = 1;
+    }
+    return;
+  }
+
+  if (!gpu.state.fb_dirty)
     return;
 
   if (gpu.frameskip.set) {
@@ -615,6 +624,7 @@ void GPUupdateLace(void)
 
   vout_update();
   gpu.state.fb_dirty = 0;
+  gpu.state.blanked = 0;
 }
 
 void GPUvBlank(int is_vblank, int lcf)
diff --git a/plugins/gpulib/gpu.h b/plugins/gpulib/gpu.h
index 11bfe46..a508cdc 100644
--- a/plugins/gpulib/gpu.h
+++ b/plugins/gpulib/gpu.h
@@ -66,6 +66,7 @@ struct psx_gpu {
     uint32_t fb_dirty:1;
     uint32_t old_interlace:1;
     uint32_t allow_interlace:2;
+    uint32_t blanked:1;
     uint32_t *frame_count;
     uint32_t *hcnt; /* hsync count */
     struct {
@@ -105,6 +106,7 @@ void renderer_set_config(const struct rearmed_cbs *config);
 int  vout_init(void);
 int  vout_finish(void);
 void vout_update(void);
+void vout_blank(void);
 void vout_set_config(const struct rearmed_cbs *config);
 
 /* listing these here for correct linkage if rasterizer uses c++ */
diff --git a/plugins/gpulib/vout_pl.c b/plugins/gpulib/vout_pl.c
index 79b6c3e..0bd1ecf 100644
--- a/plugins/gpulib/vout_pl.c
+++ b/plugins/gpulib/vout_pl.c
@@ -9,6 +9,7 @@
  * See the COPYING file in the top-level directory.
  */
 
+#include <string.h>
 #include "gpu.h"
 #include "cspace.h"
 #include "../../frontend/plugin_lib.h"
@@ -52,8 +53,11 @@ static void blit(void)
   int fb_offs, doffs;
   uint8_t *dest;
 
-  fb_offs = y * 1024 + x;
   dest = (uint8_t *)screen_buf;
+  if (dest == NULL)
+    return;
+
+  fb_offs = y * 1024 + x;
 
   // only do centering, at least for now
   doffs = (stride - w) / 2 & ~1;
@@ -99,6 +103,16 @@ void vout_update(void)
     blit();
 }
 
+void vout_blank(void)
+{
+  check_mode_change();
+  if (cbs->pl_vout_raw_flip == NULL) {
+    int bytespp = gpu.status.rgb24 ? 3 : 2;
+    memset(screen_buf, 0, gpu.screen.hres * gpu.screen.h * bytespp);
+    screen_buf = cbs->pl_vout_flip();
+  }
+}
+
 long GPUopen(void **unused)
 {
   gpu.frameskip.active = 0;
diff --git a/plugins/gpulib/vout_sdl.c b/plugins/gpulib/vout_sdl.c
index db1ae96..b8c4eae 100644
--- a/plugins/gpulib/vout_sdl.c
+++ b/plugins/gpulib/vout_sdl.c
@@ -77,6 +77,10 @@ void vout_update(void)
   SDL_UpdateRect(screen, 0, 0, 1024, 512);
 }
 
+void vout_blank(void)
+{
+}
+
 long GPUopen(void **dpy)
 {
   *dpy = x11_display;