gpu_unai: pcsx-rearmed port

5 files changed, 158 insertions, 2 deletions

diff --git a/plugins/gpu_unai/Makefile b/plugins/gpu_unai/Makefile
new file mode 100644
index 0000000..92f7ade
--- /dev/null
+++ b/plugins/gpu_unai/Makefile
@@ -0,0 +1,20 @@
+CC = $(CROSS_COMPILE)gcc
+
+CFLAGS += -fPIC -Wall -DREARMED
+CFLAGS += -O2 -ffast-math -fomit-frame-pointer
+CFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
+# -fschedule-insns (from -O2+) causes bugs, probably bad asm() statements
+CFLAGS += -fno-schedule-insns -fno-schedule-insns2
+
+TARGET = gpuPCSX4ALL.so
+LDFLAGS += -shared -Wl,-soname,$(TARGET)
+
+all: $(TARGET)
+
+$(TARGET): gpu.cpp ../../frontend/arm_utils.s
+	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)
+
+# $(TARGET): *.h
+
+clean:
+	$(RM) $(TARGET) $(OBJ)
diff --git a/plugins/gpu_unai/debug.h b/plugins/gpu_unai/debug.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/plugins/gpu_unai/debug.h
diff --git a/plugins/gpu_unai/gpu.cpp b/plugins/gpu_unai/gpu.cpp
index ba32d18..991610c 100644
--- a/plugins/gpu_unai/gpu.cpp
+++ b/plugins/gpu_unai/gpu.cpp
@@ -18,8 +18,8 @@
 *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
 ***************************************************************************/
 
-#include "gpu.h"
 #include "port.h"
+#include "gpu.h"
 #include "profiler.h"
 #include "debug.h"
 
@@ -92,7 +92,7 @@ u32   lInc;
 u32   tInc, tMsk;
 
 GPUPacket PacketBuffer;
-u16   GPU_FrameBuffer[FRAME_BUFFER_SIZE/2];    // FRAME_BUFFER_SIZE is defined in bytes
+u16   GPU_FrameBuffer[FRAME_BUFFER_SIZE/2] __attribute__((aligned(16)));    // FRAME_BUFFER_SIZE is defined in bytes
 u32   GPU_GP1;
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -570,6 +570,8 @@ void  GPU_writeStatus(u32 data)
 	pcsx4all_prof_resume(PCSX4ALL_PROF_CPU);
 }
 
+#ifndef REARMED
+
 // Blitting functions
 #include "gpu_blit.h"
 
@@ -838,3 +840,97 @@ void  GPU_updateLace(void)
 
 	pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_COUNTERS);
 }
+
+#else
+
+#include "../../frontend/plugin_lib.h"
+
+extern "C" {
+
+extern void bgr555_to_rgb565(void *dst, void *src, int bytes);
+extern void bgr888_to_rgb888(void *dst, void *src, int bytes);
+static const struct rearmed_cbs *cbs;
+static void *screen_buf;
+
+static void blit(void)
+{
+	static s16 old_res_horz, old_res_vert, old_rgb24;
+	s16 isRGB24 = (GPU_GP1 & 0x00200000) ? 1 : 0;
+	s16 h0, x0, y0, w0, h1;
+	u8  *dest = (u8 *)screen_buf;
+	u16 *srcs;
+
+	x0 = DisplayArea[0] & ~3; // alignment needed by blitter
+	y0 = DisplayArea[1];
+	srcs = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0,y0)];
+
+	w0 = DisplayArea[2];
+	h0 = DisplayArea[3];  // video mode
+
+	h1 = DisplayArea[5] - DisplayArea[4]; // display needed
+	if (h0 == 480) h1 = Min2(h1*2,480);
+
+	if (w0 != old_res_horz || h1 != old_res_vert || isRGB24 != old_rgb24)
+	{
+		old_res_horz = w0;
+		old_res_vert = h1;
+		old_rgb24 = (s16)isRGB24;
+		cbs->pl_fbdev_set_mode(w0, h1, isRGB24 ? 24 : 16);
+	}
+
+	if (isRGB24)
+	{
+		for (; h1-- > 0; dest += w0 * 3, srcs += 1024)
+		{
+			bgr888_to_rgb888(dest, srcs, w0 * 3);
+		}
+	}
+	else
+	{
+		for (; h1-- > 0; dest += w0 * 2, srcs += 1024)
+		{
+			bgr555_to_rgb565(dest, srcs, w0 * 2);
+		}
+	}
+
+	screen_buf = cbs->pl_fbdev_flip();
+}
+
+void GPU_updateLace(void)
+{
+	// Interlace bit toggle
+	GPU_GP1 ^= 0x80000000;
+
+	if (!((GPU_GP1&0x08000000) || (GPU_GP1&0x00800000)))
+		blit();
+}
+
+long GPUopen(unsigned long *, char *, char *)
+{
+	cbs->pl_fbdev_open();
+	screen_buf = cbs->pl_fbdev_flip();
+	return 0;
+}
+
+long GPUclose(void)
+{
+	cbs->pl_fbdev_close();
+	return 0;
+}
+
+long GPUfreeze(unsigned int ulGetFreezeData, GPUFreeze_t* p2)
+{
+	if (ulGetFreezeData > 1)
+		return 0;
+
+	return GPU_freeze(ulGetFreezeData, p2);
+}
+
+void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_)
+{
+	cbs = cbs_;
+}
+
+} /* extern "C" */
+
+#endif
diff --git a/plugins/gpu_unai/port.h b/plugins/gpu_unai/port.h
new file mode 100644
index 0000000..3561acd
--- /dev/null
+++ b/plugins/gpu_unai/port.h
@@ -0,0 +1,36 @@
+#include <stddef.h>
+#include <string.h>
+
+#define INLINE static inline
+
+#define GPU_init	GPUinit
+#define GPU_shutdown	GPUshutdown
+//#define GPU_freeze	GPUfreeze
+#define GPU_writeDataMem GPUwriteDataMem
+#define GPU_dmaChain	GPUdmaChain
+#define GPU_writeData	GPUwriteData
+#define GPU_readDataMem	GPUreadDataMem
+#define GPU_readData	GPUreadData
+#define GPU_readStatus	GPUreadStatus
+#define GPU_writeStatus	GPUwriteStatus
+#define GPU_updateLace	GPUupdateLace
+
+extern "C" {
+
+#define u32 unsigned int
+#define s32 signed int
+
+bool GPUinit(void);
+void GPUshutdown(void);
+void GPUwriteDataMem(u32* dmaAddress, s32 dmaCount);
+void GPUdmaChain(u32* baseAddr, u32 dmaVAddr);
+void GPUwriteData(u32 data);
+void GPUreadDataMem(u32* dmaAddress, s32 dmaCount);
+u32  GPUreadData(void);
+u32  GPUreadStatus(void);
+void GPUwriteStatus(u32 data);
+
+#undef u32
+#undef s32
+
+}
diff --git a/plugins/gpu_unai/profiler.h b/plugins/gpu_unai/profiler.h
new file mode 100644
index 0000000..c09c95f
--- /dev/null
+++ b/plugins/gpu_unai/profiler.h
@@ -0,0 +1,4 @@
+#define pcsx4all_prof_pause(...)
+#define pcsx4all_prof_start_with_pause(...)
+#define pcsx4all_prof_end_with_resume(...)
+#define pcsx4all_prof_resume(...)