Merge pull request #120 from pjft/pjft-experimental

Adding enable/disable dithering core option with support for Neon GPU

2 files changed, 15 insertions, 0 deletions

diff --git a/plugins/gpu_neon/psx_gpu/psx_gpu.h b/plugins/gpu_neon/psx_gpu/psx_gpu.h
index 1eaa99a..1fa6b98 100644
--- a/plugins/gpu_neon/psx_gpu/psx_gpu.h
+++ b/plugins/gpu_neon/psx_gpu/psx_gpu.h
@@ -207,6 +207,7 @@ typedef struct
   u8 texture_4bpp_cache[32][256 * 256];
   u8 texture_8bpp_even_cache[16][256 * 256];
   u8 texture_8bpp_odd_cache[16][256 * 256];
+  int use_dithering;
 } psx_gpu_struct;
 
 typedef struct __attribute__((aligned(16)))
diff --git a/plugins/gpu_neon/psx_gpu_if.c b/plugins/gpu_neon/psx_gpu_if.c
index ad01761..788e3b4 100644
--- a/plugins/gpu_neon/psx_gpu_if.c
+++ b/plugins/gpu_neon/psx_gpu_if.c
@@ -184,4 +184,18 @@ void renderer_set_config(const struct rearmed_cbs *cbs)
     map_enhancement_buffer();
   if (cbs->pl_set_gpu_caps)
     cbs->pl_set_gpu_caps(GPU_CAP_SUPPORTS_2X);
+  
+  egpu.use_dithering = cbs->gpu_neon.allow_dithering;
+  if(!egpu.use_dithering) {
+    egpu.dither_table[0] = dither_table_row(0, 0, 0, 0);
+    egpu.dither_table[1] = dither_table_row(0, 0, 0, 0);
+    egpu.dither_table[2] = dither_table_row(0, 0, 0, 0);
+    egpu.dither_table[3] = dither_table_row(0, 0, 0, 0);
+  } else {
+    egpu.dither_table[0] = dither_table_row(-4, 0, -3, 1);
+    egpu.dither_table[1] = dither_table_row(2, -2, 3, -1);
+    egpu.dither_table[2] = dither_table_row(-3, 1, -4, 0);
+    egpu.dither_table[3] = dither_table_row(3, -1, 2, -2); 
+  }
+
 }