Added BGFX as video output. For now rendering info shown only (nw)

src/osd/windows/drawbgfx.c

@@ -0,0 +1,233 @@
+// license:BSD-3-Clause
+// copyright-holders:Miodrag Milanovic
+//============================================================
+//
+//  drawbgfx.c - BGFX drawer
+//
+//============================================================
+
+// standard windows headers
+#define __STDC_LIMIT_MACROS
+#define __STDC_FORMAT_MACROS
+#define __STDC_CONSTANT_MACROS
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+// MAME headers
+#include "emu.h"
+
+// MAMEOS headers
+#include "window.h"
+
+#include <bgfxplatform.h> 
+#include <bgfx.h>
+
+//============================================================
+//  PROTOTYPES
+//============================================================
+
+// core functions
+static void drawbgfx_exit(void);
+static int drawbgfx_window_init(win_window_info *window);
+static void drawbgfx_window_destroy(win_window_info *window);
+static render_primitive_list *drawbgfx_window_get_primitives(win_window_info *window);
+static int drawbgfx_window_draw(win_window_info *window, HDC dc, int update);
+
+
+
+//============================================================
+//  drawbgfx_init
+//============================================================
+
+int drawbgfx_init(running_machine &machine, win_draw_callbacks *callbacks)
+{
+	// fill in the callbacks
+	memset(callbacks, 0, sizeof(*callbacks));
+	callbacks->exit = drawbgfx_exit;
+	callbacks->window_init = drawbgfx_window_init;
+	callbacks->window_get_primitives = drawbgfx_window_get_primitives;
+	callbacks->window_draw = drawbgfx_window_draw;
+	callbacks->window_destroy = drawbgfx_window_destroy;
+	return 0;
+}
+
+
+
+//============================================================
+//  drawbgfx_exit
+//============================================================
+
+static void drawbgfx_exit(void)
+{
+}
+
+
+
+//============================================================
+//  drawbgfx_window_init
+//============================================================
+
+static int drawbgfx_window_init(win_window_info *window)
+{
+	RECT client;
+	GetClientRect(window->m_hwnd, &client);
+
+	bgfx::winSetHwnd(window->m_hwnd);
+	bgfx::init();
+	bgfx::reset(rect_width(&client), rect_height(&client), BGFX_RESET_VSYNC);
+	
+	// Enable debug text.
+	bgfx::setDebug(BGFX_DEBUG_STATS);// BGFX_DEBUG_TEXT);
+
+	window->m_drawdata = window->m_hwnd;
+	return 0;
+}
+
+
+
+//============================================================
+//  drawbgfx_window_destroy
+//============================================================
+
+static void drawbgfx_window_destroy(win_window_info *window)
+{
+	// Shutdown bgfx.
+	bgfx::shutdown();
+	window->m_drawdata = NULL;
+}
+
+
+
+//============================================================
+//  drawbgfx_window_get_primitives
+//============================================================
+
+static render_primitive_list *drawbgfx_window_get_primitives(win_window_info *window)
+{
+	RECT client;
+	GetClientRect(window->m_hwnd, &client);
+	window->m_target->set_bounds(rect_width(&client), rect_height(&client), window->m_monitor->get_aspect());
+	return &window->m_target->get_primitives();	
+}
+
+
+
+//============================================================
+//  drawbgfx_window_draw
+//============================================================
+
+static int drawbgfx_window_draw(win_window_info *window, HDC dc, int update)
+{
+	RECT client;
+	GetClientRect(window->m_hwnd, &client);
+
+	bgfx::setViewClear(0
+		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+		, 0x000000ff
+		, 1.0f
+		, 0
+		);
+	// Set view 0 default viewport.
+	bgfx::setViewRect(0, 0, 0, rect_width(&client), rect_height(&client));
+
+	// This dummy draw call is here to make sure that view 0 is cleared
+	// if no other draw calls are submitted to view 0.
+	bgfx::submit(0);
+
+	// Use debug font to print information about this example.
+	//bgfx::dbgTextClear();
+	//bgfx::dbgTextPrintf(0, 1, 0x4f, "MAME BGFX test");
+	//bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Initialization and debug text.");
+
+	window->m_primlist->acquire_lock();
+
+	// now draw
+	for (render_primitive *prim = window->m_primlist->first(); prim != NULL; prim = prim->next())
+	{
+		switch (prim->type)
+		{
+			/**
+			 * Try to stay in one Begin/End block as long as possible,
+			 * since entering and leaving one is most expensive..
+			 */
+			case render_primitive::LINE:
+				// check if it's really a point
+/*				
+				if (((prim->bounds.x1 - prim->bounds.x0) == 0) && ((prim->bounds.y1 - prim->bounds.y0) == 0))
+				{
+					curPrimitive=GL_POINTS;
+				} else {
+					curPrimitive=GL_LINES;
+				}
+
+				if(pendingPrimitive!=GL_NO_PRIMITIVE && pendingPrimitive!=curPrimitive)
+				{
+					glEnd();
+					pendingPrimitive=GL_NO_PRIMITIVE;
+				}
+
+				if ( pendingPrimitive==GL_NO_PRIMITIVE )
+				{
+							set_blendmode(sdl, PRIMFLAG_GET_BLENDMODE(prim->flags));
+				}
+
+				glColor4f(prim->color.r, prim->color.g, prim->color.b, prim->color.a);
+
+				if(pendingPrimitive!=curPrimitive)
+				{
+					glBegin(curPrimitive);
+					pendingPrimitive=curPrimitive;
+				}
+
+				// check if it's really a point
+				if (curPrimitive==GL_POINTS)
+				{
+					glVertex2f(prim->bounds.x0+hofs, prim->bounds.y0+vofs);
+				}
+				else
+				{
+					glVertex2f(prim->bounds.x0+hofs, prim->bounds.y0+vofs);
+					glVertex2f(prim->bounds.x1+hofs, prim->bounds.y1+vofs);
+				}*/
+				break;
+
+			case render_primitive::QUAD:
+/*
+				if(pendingPrimitive!=GL_NO_PRIMITIVE)
+				{
+					glEnd();
+					pendingPrimitive=GL_NO_PRIMITIVE;
+				}
+
+				glColor4f(prim->color.r, prim->color.g, prim->color.b, prim->color.a);
+
+				set_blendmode(sdl, PRIMFLAG_GET_BLENDMODE(prim->flags));
+
+				texture = texture_update(window, prim, 0);
+
+				
+				sdl->texVerticex[0]=prim->bounds.x0 + hofs;
+				sdl->texVerticex[1]=prim->bounds.y0 + vofs;
+				sdl->texVerticex[2]=prim->bounds.x1 + hofs;
+				sdl->texVerticex[3]=prim->bounds.y0 + vofs;
+				sdl->texVerticex[4]=prim->bounds.x1 + hofs;
+				sdl->texVerticex[5]=prim->bounds.y1 + vofs;
+				sdl->texVerticex[6]=prim->bounds.x0 + hofs;
+				sdl->texVerticex[7]=prim->bounds.y1 + vofs;
+
+				glDrawArrays(GL_QUADS, 0, 4);
+*/
+				break;
+
+			default:
+				throw emu_fatalerror("Unexpected render_primitive type");
+		}
+	}
+
+	window->m_primlist->release_lock();	
+	// Advance to next frame. Rendering thread will be kicked to 
+	// process submitted rendering primitives.
+	bgfx::frame();
+
+	return 0;
+}

src/osd/windows/video.c

@@ -391,6 +391,8 @@ static void extract_video_config(running_machine &machine)
 		video_config.mode = VIDEO_MODE_DDRAW;
 	else if (strcmp(stemp, "gdi") == 0)
 		video_config.mode = VIDEO_MODE_GDI;
+	else if (strcmp(stemp, "bgfx") == 0)
+		video_config.mode = VIDEO_MODE_BGFX;
 	else if (strcmp(stemp, "none") == 0)
 	{
 		video_config.mode = VIDEO_MODE_NONE;

src/osd/windows/video.h

@@ -22,6 +22,7 @@
 #define VIDEO_MODE_GDI      1
 #define VIDEO_MODE_DDRAW    2
 #define VIDEO_MODE_D3D      3
+#define VIDEO_MODE_BGFX     4
 
 
 

src/osd/windows/window.c

@@ -39,6 +39,7 @@ extern int drawnone_init(running_machine &machine, win_draw_callbacks *callbacks
 extern int drawgdi_init(running_machine &machine, win_draw_callbacks *callbacks);
 extern int drawdd_init(running_machine &machine, win_draw_callbacks *callbacks);
 extern int drawd3d_init(running_machine &machine, win_draw_callbacks *callbacks);
+extern int drawbgfx_init(running_machine &machine, win_draw_callbacks *callbacks);
 
 
 //============================================================
@@ -240,6 +241,8 @@ bool windows_osd_interface::window_init()
 	}
 	if (video_config.mode == VIDEO_MODE_GDI)
 		drawgdi_init(machine(), &draw);
+	if (video_config.mode == VIDEO_MODE_BGFX)
+		drawbgfx_init(machine(), &draw);
 	if (video_config.mode == VIDEO_MODE_NONE)
 		drawnone_init(machine(), &draw);
 

src/osd/windows/windows.mak

@@ -371,6 +371,7 @@ OSDOBJS = \
 	$(WINOBJ)/d3dhlsl.o \
 	$(WINOBJ)/drawdd.o \
 	$(WINOBJ)/drawgdi.o \
+	$(WINOBJ)/drawbgfx.o \
 	$(WINOBJ)/drawnone.o \
 	$(WINOBJ)/input.o \
 	$(WINOBJ)/output.o \
@@ -416,6 +417,8 @@ OSDOBJS += \
 # add a stub resource file
 RESFILE = $(WINOBJ)/mame.res
 
+INCPATH += -I$(3RDPARTY)/bgfx/include -I$(3RDPARTY)/bx/include
+
 #-------------------------------------------------
 # QT Debug library
 #-------------------------------------------------

src/osd/windows/winmain.c

@@ -526,6 +526,7 @@ void windows_osd_interface::video_register()
 	video_options_add("gdi", NULL);
 	video_options_add("ddraw", NULL);
 	video_options_add("d3d", NULL);
+	video_options_add("bgfx", NULL);
 	//video_options_add("auto", NULL); // making d3d video default one
 }