Start getting NEON GPU to work on non-Arm

[pcsx_rearmed.git] / plugins / gpu_neon / psx_gpu_if.c

diff --git a/plugins/gpu_neon/psx_gpu_if.c b/plugins/gpu_neon/psx_gpu_if.c
index 62c4f9e..3f3805a 100644 (file)
--- a/plugins/gpu_neon/psx_gpu_if.c
+++ b/plugins/gpu_neon/psx_gpu_if.c
@@ -9,7 +9,12 @@
  */
 
 #include <stdio.h>
+
+#ifdef _WIN32
+#include <mman.h>
+#else
 #include <sys/mman.h>
+#endif
 
 extern const unsigned char cmd_lengths[256];
 #define command_lengths cmd_lengths
@@ -43,17 +48,33 @@ int do_cmd_list(uint32_t *list, int count, int *last_cmd)
 
 #define ENHANCEMENT_BUF_SIZE (1024 * 1024 * 2 * 4 + 4096 * 2)
 
+static uint16_t *get_enhancement_bufer(int *x, int *y, int *w, int *h,
+ int *vram_h)
+{
+  uint16_t *ret = select_enhancement_buf_ptr(&egpu, *x);
+
+  *x *= 2;
+  *y *= 2;
+  *w = *w * 2;
+  *h = *h * 2;
+  *vram_h = 1024;
+  return ret;
+}
+
 static void map_enhancement_buffer(void)
 {
   // currently we use 4x 1024*1024 buffers instead of single 2048*1024
   // to be able to reuse 1024-width code better (triangle setup,
   // dithering phase, lines).
-  gpu.enhancement_bufer = gpu.mmap(ENHANCEMENT_BUF_SIZE);
-  if (gpu.enhancement_bufer == NULL)
+  egpu.enhancement_buf_ptr = gpu.mmap(ENHANCEMENT_BUF_SIZE);
+  if (egpu.enhancement_buf_ptr == NULL) {
     fprintf(stderr, "failed to map enhancement buffer\n");
-  else
-    gpu.enhancement_bufer += 4096 / 2;
-  egpu.enhancement_buf_ptr = gpu.enhancement_bufer;
+    gpu.get_enhancement_bufer = NULL;
+  }
+  else {
+    egpu.enhancement_buf_ptr += 4096 / 2;
+    gpu.get_enhancement_bufer = get_enhancement_bufer;
+  }
 }
 
 int renderer_init(void)
@@ -63,7 +84,7 @@ int renderer_init(void)
     initialized = 1;
   }
 
-  if (gpu.mmap != NULL && gpu.enhancement_bufer == NULL)
+  if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
     map_enhancement_buffer();
 
   ex_regs = gpu.ex_regs;
@@ -72,11 +93,10 @@ int renderer_init(void)
 
 void renderer_finish(void)
 {
-  if (gpu.enhancement_bufer != NULL) {
-    gpu.enhancement_bufer -= 4096 / 2;
-    gpu.munmap(gpu.enhancement_bufer, ENHANCEMENT_BUF_SIZE);
+  if (egpu.enhancement_buf_ptr != NULL) {
+    egpu.enhancement_buf_ptr -= 4096 / 2;
+    gpu.munmap(egpu.enhancement_buf_ptr, ENHANCEMENT_BUF_SIZE);
   }
-  gpu.enhancement_bufer = NULL;
   egpu.enhancement_buf_ptr = NULL;
   egpu.enhancement_current_buf_ptr = NULL;
   initialized = 0;
@@ -142,7 +162,7 @@ void renderer_notify_res_change(void)
   if (egpu.enhancement_x_threshold != gpu.screen.hres)
   {
     egpu.enhancement_x_threshold = gpu.screen.hres;
-    update_enhancement_buf_table(&egpu);
+    update_enhancement_buf_table_from_hres(&egpu);
   }
 }
 
@@ -165,6 +185,22 @@ void renderer_set_config(const struct rearmed_cbs *cbs)
     initialized = 1;
   }
 
-  if (gpu.enhancement_bufer == NULL)
+  if (gpu.mmap != NULL && egpu.enhancement_buf_ptr == NULL)
     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); 
+  }
+
 }