merge from libretro fork

[pcsx_rearmed.git] / plugins / gpulib / gpu.h

diff --git a/plugins/gpulib/gpu.h b/plugins/gpulib/gpu.h
index 5ad2a46..42b2817 100644 (file)
--- a/plugins/gpulib/gpu.h
+++ b/plugins/gpulib/gpu.h
@@ -8,6 +8,9 @@
  * See the COPYING file in the top-level directory.
  */
 
+#ifndef __GPULIB_GPU_H__
+#define __GPULIB_GPU_H__
+
 #include <stdint.h>
 
 #ifdef __cplusplus
@@ -16,38 +19,33 @@ extern "C" {
 
 #define CMD_BUFFER_LEN          1024
 
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define HTOLE32(x) __builtin_bswap32(x)
+#define HTOLE16(x) __builtin_bswap16(x)
+#define LE32TOH(x) __builtin_bswap32(x)
+#define LE16TOH(x) __builtin_bswap16(x)
+#else
+#define HTOLE32(x) (x)
+#define HTOLE16(x) (x)
+#define LE32TOH(x) (x)
+#define LE16TOH(x) (x)
+#endif
+
+#define BIT(x) (1 << (x))
+
+#define PSX_GPU_STATUS_DHEIGHT         BIT(19)
+#define PSX_GPU_STATUS_RGB24           BIT(21)
+#define PSX_GPU_STATUS_INTERLACE       BIT(22)
+#define PSX_GPU_STATUS_BLANKING                BIT(23)
+#define PSX_GPU_STATUS_IMG                     BIT(27)
+#define PSX_GPU_STATUS_DMA(x)          ((x) << 29)
+#define PSX_GPU_STATUS_DMA_MASK                (BIT(29) | BIT(30))
+
 struct psx_gpu {
-  uint16_t vram[1024 * 512];
-  uint16_t guard[1024 * 512]; // overdraw guard
   uint32_t cmd_buffer[CMD_BUFFER_LEN];
   uint32_t regs[16];
-  union {
-    uint32_t reg;
-    struct {
-      uint32_t tx:4;        //  0 texture page
-      uint32_t ty:1;
-      uint32_t abr:2;
-      uint32_t tp:2;        //  7 t.p. mode (4,8,15bpp)
-      uint32_t dtd:1;       //  9 dither
-      uint32_t dfe:1;
-      uint32_t md:1;        // 11 set mask bit when drawing
-      uint32_t me:1;        // 12 no draw on mask
-      uint32_t unkn:3;
-      uint32_t width1:1;    // 16
-      uint32_t width0:2;
-      uint32_t dheight:1;   // 19 double height
-      uint32_t video:1;     // 20 NTSC,PAL
-      uint32_t rgb24:1;
-      uint32_t interlace:1; // 22 interlace on
-      uint32_t blanking:1;  // 23 display not enabled
-      uint32_t unkn2:2;
-      uint32_t busy:1;      // 26 !busy drawing
-      uint32_t img:1;       // 27 ready to DMA image data
-      uint32_t com:1;       // 28 ready for commands
-      uint32_t dma:2;       // 29 off, ?, to vram, from vram
-      uint32_t lcf:1;       // 31
-    };
-  } status;
+  uint16_t *vram;
+  uint32_t status;
   uint32_t gp0;
   uint32_t ex_regs[8];
   struct {
@@ -89,7 +87,10 @@ struct psx_gpu {
     uint32_t last_flip_frame;
     uint32_t pending_fill[3];
   } frameskip;
-  uint16_t *enhancement_bufer;
+  uint16_t *(*get_enhancement_bufer)
+    (int *x, int *y, int *w, int *h, int *vram_h);
+  void *(*mmap)(unsigned int size);
+  void  (*munmap)(void *ptr, unsigned int size);
 };
 
 extern struct psx_gpu gpu;
@@ -137,3 +138,5 @@ void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);
 #ifdef __cplusplus
 }
 #endif
+
+#endif /* __GPULIB_GPU_H__ */