1 files changed, 131 insertions, 0 deletions
diff --git a/plugins/gpulib/gpu.h b/plugins/gpulib/gpu.h
new file mode 100644
index 0000000..d9ad416
--- /dev/null
+++ b/plugins/gpulib/gpu.h
@@ -0,0 +1,131 @@
+/*
+ * (C) Gražvydas "notaz" Ignotas, 2011
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ *  - GNU GPL, version 2 or later.
+ *  - GNU LGPL, version 2.1 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CMD_BUFFER_LEN          1024
+
+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;
+  uint32_t gp0;
+  uint32_t ex_regs[8];
+  struct {
+    int hres, vres;
+    int x, y, w, h;
+    int x1, x2;
+    int y1, y2;
+  } screen;
+  struct {
+    int x, y, w, h;
+    short int offset, is_read;
+  } dma, dma_start;
+  int cmd_len;
+  uint32_t zero;
+  struct {
+    uint32_t fb_dirty:1;
+    uint32_t old_interlace:1;
+    uint32_t allow_interlace:2;
+    uint32_t *frame_count;
+    uint32_t *hcnt; /* hsync count */
+    struct {
+      uint32_t addr;
+      uint32_t cycles;
+      uint32_t frame;
+      uint32_t hcnt;
+    } last_list;
+    uint32_t last_vram_read_frame;
+  } state;
+  struct {
+    int32_t set:3; /* -1 auto, 0 off, 1-3 fixed */
+    int32_t cnt:3; /* amount skipped in a row */
+    uint32_t active:1;
+    uint32_t allow:1;
+    uint32_t frame_ready:1;
+    const int *advice;
+    uint32_t last_flip_frame;
+  } frameskip;
+};
+
+extern struct psx_gpu gpu;
+
+extern const unsigned char cmd_lengths[256];
+
+void do_cmd_list(uint32_t *list, int count);
+
+struct rearmed_cbs;
+
+int  renderer_init(void);
+void renderer_sync_ecmds(uint32_t * ecmds);
+void renderer_update_caches(int x, int y, int w, int h);
+void renderer_flush_queues(void);
+void renderer_set_interlace(int enable, int is_odd);
+void renderer_set_config(const struct rearmed_cbs *config);
+
+int  vout_init(void);
+int  vout_finish(void);
+void vout_update(void);
+void vout_set_config(const struct rearmed_cbs *config);
+
+/* listing these here for correct linkage if rasterizer uses c++ */
+struct GPUFreeze;
+
+long GPUinit(void);
+long GPUshutdown(void);
+void GPUwriteDataMem(uint32_t *mem, int count);
+long GPUdmaChain(uint32_t *rambase, uint32_t addr);
+void GPUwriteData(uint32_t data);
+void GPUreadDataMem(uint32_t *mem, int count);
+uint32_t GPUreadData(void);
+uint32_t GPUreadStatus(void);
+void GPUwriteStatus(uint32_t data);
+long GPUfreeze(uint32_t type, struct GPUFreeze *freeze);
+void GPUupdateLace(void);
+long GPUopen(void **dpy);
+long GPUclose(void);
+void GPUvBlank(int is_vblank, int lcf);
+void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_);
+
+#ifdef __cplusplus
+}
+#endif