Added swrast dll based on wgl

1 files changed, 675 insertions, 0 deletions

diff --git a/xorg-server/hw/xwin/glx/simpledib.c b/xorg-server/hw/xwin/glx/simpledib.c
new file mode 100644
index 000000000..f491e2857
--- /dev/null
+++ b/xorg-server/hw/xwin/glx/simpledib.c
@@ -0,0 +1,675 @@
+/*
+** Simple example of rendering to a Windows DIB (Device Independent Bitmap)
+*/
+#include <windows.h>
+#include <math.h>
+#include <GL/gl.h>
+
+#if !defined(M_PI)
+#define M_PI 3.14159265F
+#endif
+
+char *className = "OpenGL";
+char *windowName = "Simple DIB Example";
+int winX = 0, winY = 0;
+int winWidth = 1024, winHeight = 1024;
+
+HDC hDC;
+HDC hDCFrontBuffer;
+HGLRC hGLRC;
+HPALETTE hPalette;
+HBITMAP hBitmap, hOldBitmap;
+
+void (*idleFunc)(void);
+
+BOOL colorIndexMode = FALSE;
+BOOL doubleBuffered = FALSE;
+BOOL renderToDIB = TRUE;
+
+/* Struct used to manage color ramps */
+struct colorIndexState {
+    GLfloat amb[3];	/* ambient color / bottom of ramp */
+    GLfloat diff[3];	/* diffuse color / middle of ramp */
+    GLfloat spec[3];	/* specular color / top of ramp */
+    GLfloat ratio;	/* ratio of diffuse to specular in ramp */
+    GLint indexes[3];	/* where ramp was placed in palette */
+};
+
+/*
+** Each entry in this array corresponds to a color ramp in the
+** palette.  The indexes member of each struct is updated to
+** reflect the placement of the color ramp in the palette.
+*/
+#define NUM_COLORS (sizeof(colors) / sizeof(colors[0]))
+struct colorIndexState colors[] = {
+    {
+        { 0.0F, 0.0F, 0.0F },
+        { 0.1F, 0.6F, 0.3F },
+        { 1.0F, 1.0F, 1.0F },
+        0.75F, { 0, 0, 0 },
+    },
+    {
+        { 0.0F, 0.0F, 0.0F },
+        { 0.0F, 0.2F, 0.5F },
+        { 1.0F, 1.0F, 1.0F },
+
+        0.75F, { 0, 0, 0 },
+    },
+    {
+        { 0.0F, 0.05F, 0.05F },
+        { 0.6F, 0.0F, 0.8F },
+        { 1.0F, 1.0F, 1.0F },
+        0.75F, { 0, 0, 0 },
+    },
+};
+
+void
+drawTorus(void)
+{
+    int numMajor = 32;
+    int numMinor = 24;
+    float majorRadius = 0.6F;
+    float minorRadius = 0.2F;
+    double majorStep = 2.0F*M_PI / numMajor;
+    double minorStep = 2.0F*M_PI / numMinor;
+    int i, j;
+
+    for (i=0; i<numMajor; ++i) {
+	double a0 = i * majorStep;
+	double a1 = a0 + majorStep;
+	GLfloat x0 = (GLfloat) cos(a0);
+	GLfloat y0 = (GLfloat) sin(a0);
+	GLfloat x1 = (GLfloat) cos(a1);
+	GLfloat y1 = (GLfloat) sin(a1);
+
+	if (i & 1) {
+	    glColor3fv(colors[0].diff);
+	    glMaterialiv(GL_FRONT, GL_COLOR_INDEXES, colors[0].indexes);
+	} else {
+	    glColor3fv(colors[1].diff);
+	    glMaterialiv(GL_FRONT, GL_COLOR_INDEXES, colors[1].indexes);
+	}
+
+	glBegin(GL_TRIANGLE_STRIP);
+	for (j=0; j<=numMinor; ++j) {
+	    double b = j * minorStep;
+	    GLfloat c = (GLfloat) cos(b);
+	    GLfloat r = minorRadius * c + majorRadius;
+	    GLfloat z = minorRadius * (GLfloat) sin(b);
+
+	    glNormal3f(x0*c, y0*c, z/minorRadius);
+	    glVertex3f(x0*r, y0*r, z);
+
+	    glNormal3f(x1*c, y1*c, z/minorRadius);
+	    glVertex3f(x1*r, y1*r, z);
+	}
+	glEnd();
+    }
+}
+
+/*****************************************************************/
+
+void
+setProjection(void)
+{
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    /*
+    ** Preserve the aspect ratio of objects in the scene.
+    */
+    if (winWidth > winHeight) {
+	GLfloat aspect = (GLfloat) winWidth / (GLfloat) winHeight;
+	glFrustum(-0.5F*aspect, 0.5F*aspect, -0.5F, 0.5F, 1.0F, 3.0F);
+    } else {
+	GLfloat aspect = (GLfloat) winHeight / (GLfloat) winWidth;
+	glFrustum(-0.5F, 0.5F, -0.5F*aspect, 0.5F*aspect, 1.0F, 3.0F);
+    }
+    glMatrixMode(GL_MODELVIEW);
+}
+
+void
+init(void)
+{
+    GLfloat matShine = 20.00F;
+    GLfloat light0Pos[4] = { 0.70F, 0.70F, 1.25F, 0.00F };
+
+    glClearColor(colors[2].diff[0], colors[2].diff[1], colors[2].diff[2], 1.0F);
+    glClearIndex((GLfloat) colors[2].indexes[1]);
+
+    setProjection();
+    glTranslatef(0.0F, 0.0F, -2.0F);
+
+    glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, matShine);
+    glLightfv(GL_LIGHT0, GL_POSITION, light0Pos);
+    glEnable(GL_LIGHT0);
+
+    glEnable(GL_LIGHTING);
+    glEnable(GL_DEPTH_TEST);
+
+    if (!colorIndexMode) {
+	glEnable(GL_COLOR_MATERIAL);
+    }
+}
+
+void
+doRedraw(void)
+{
+    static GLfloat x, y, z;
+
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glPushMatrix();
+    glRotatef(x, 1.0F, 0.0F, 0.0F);
+    glRotatef(y, 0.0F, 1.0F, 0.0F);
+    glRotatef(z, 0.0F, 0.0F, 1.0F);
+
+    drawTorus();
+
+    glPopMatrix();
+
+    if (renderToDIB) {
+	glFinish();
+	BitBlt(hDCFrontBuffer, /*winWidth/4, winHeight/4, winWidth/2, winHeight/2,*/0,0,winWidth, winHeight, hDC, 0, 0, SRCCOPY);
+	GdiFlush();
+    } else {
+	SwapBuffers(hDC);
+    }
+
+    x += 5.0F;
+    if (x > 360.0F) x -= 360.0F;
+    y += 7.0F;
+    if (y > 360.0F) y -= 360.0F;
+    z += 9.0F;
+    if (z > 360.0F) z -= 360.0F;
+}
+
+void
+redraw(void)
+{
+    idleFunc = doRedraw;
+}
+
+void
+resize(void)
+{
+    setProjection();
+    glViewport(0, 0, winWidth, winHeight /*winWidth/2, winHeight/2*/);
+}
+
+/*****************************************************************/
+
+void
+setupDIB(HDC hDC)
+{
+    BITMAPINFO *bmInfo;
+    BITMAPINFOHEADER *bmHeader;
+    UINT usage;
+    VOID *base;
+    int bmiSize;
+    int bitsPerPixel;
+
+    bmiSize = sizeof(*bmInfo);
+    bitsPerPixel = GetDeviceCaps(hDC, BITSPIXEL);
+
+    switch (bitsPerPixel) {
+    case 8:
+	/* bmiColors is 256 WORD palette indices */
+	bmiSize += (256 * sizeof(WORD)) - sizeof(RGBQUAD);
+	break;
+    case 16:
+	/* bmiColors is 3 WORD component masks */
+	bmiSize += (3 * sizeof(DWORD)) - sizeof(RGBQUAD);
+	break;
+    case 24:
+    case 32:
+    default:
+	/* bmiColors not used */
+	break;
+    }
+
+    bmInfo = (BITMAPINFO *) calloc(1, bmiSize);
+    bmHeader = &bmInfo->bmiHeader;
+
+    bmHeader->biSize = sizeof(*bmHeader);
+    bmHeader->biWidth = winWidth /* /2 */;
+    bmHeader->biHeight = winHeight /* /2 */;
+    bmHeader->biPlanes = 1;			/* must be 1 */
+    bmHeader->biBitCount = bitsPerPixel;
+    bmHeader->biXPelsPerMeter = 0;
+    bmHeader->biYPelsPerMeter = 0;
+    bmHeader->biClrUsed = 0;			/* all are used */
+    bmHeader->biClrImportant = 0;		/* all are important */
+
+    switch (bitsPerPixel) {
+    case 8:
+	bmHeader->biCompression = BI_RGB;
+	bmHeader->biSizeImage = 0;
+	usage = DIB_PAL_COLORS;
+	/* bmiColors is 256 WORD palette indices */
+	{
+	    WORD *palIndex = (WORD *) &bmInfo->bmiColors[0];
+	    int i;
+
+	    for (i=0; i<256; i++) {
+		palIndex[i] = i;
+	    }
+	}
+	break;
+    case 16:
+	bmHeader->biCompression = BI_RGB;
+	bmHeader->biSizeImage = 0;
+	usage = DIB_RGB_COLORS;
+	/* bmiColors is 3 WORD component masks */
+	{
+	    DWORD *compMask = (DWORD *) &bmInfo->bmiColors[0];
+
+	    compMask[0] = 0xF800;
+	    compMask[1] = 0x07E0;
+	    compMask[2] = 0x001F;
+	}
+	break;
+    case 24:
+    case 32:
+    default:
+	bmHeader->biCompression = BI_RGB;
+	bmHeader->biSizeImage = 0;
+	usage = DIB_RGB_COLORS;
+	/* bmiColors not used */
+	break;
+    }
+
+    hBitmap = CreateDIBSection(hDC, bmInfo, usage, &base, NULL, 0);
+    if (hBitmap == NULL) {
+	(void) MessageBox(WindowFromDC(hDC),
+		"Failed to create DIBSection.",
+		"OpenGL application error",
+		MB_ICONERROR | MB_OK);
+	exit(1);
+    }
+
+    hOldBitmap = SelectObject(hDC, hBitmap);
+
+    free(bmInfo);
+}
+
+void
+resizeDIB(HDC hDC)
+{
+    SelectObject(hDC, hOldBitmap);
+    DeleteObject(hBitmap);
+    setupDIB(hDC);
+}
+
+void
+setupPalette(HDC hDC)
+{
+    PIXELFORMATDESCRIPTOR pfd;
+    LOGPALETTE* pPal;
+    int pixelFormat = GetPixelFormat(hDC);
+    int paletteSize;
+
+    DescribePixelFormat(hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+
+    /*
+    ** Determine if a palette is needed and if so what size.
+    */
+    if (pfd.dwFlags & PFD_NEED_PALETTE) {
+	paletteSize = 1 << pfd.cColorBits;
+    } else if (pfd.iPixelType == PFD_TYPE_COLORINDEX) {
+	paletteSize = 4096;
+    } else {
+	return;
+    }
+
+    pPal = (LOGPALETTE*)
+	malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY));
+    pPal->palVersion = 0x300;
+    pPal->palNumEntries = paletteSize;
+
+    if (pfd.iPixelType == PFD_TYPE_RGBA) {
+	/*
+	** Fill the logical paletee with RGB color ramps
+	*/
+	int redMask = (1 << pfd.cRedBits) - 1;
+	int greenMask = (1 << pfd.cGreenBits) - 1;
+	int blueMask = (1 << pfd.cBlueBits) - 1;
+	int i;
+
+	for (i=0; i<paletteSize; ++i) {
+	    pPal->palPalEntry[i].peRed =
+		    (((i >> pfd.cRedShift) & redMask) * 255) / redMask;
+	    pPal->palPalEntry[i].peGreen =
+		    (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask;
+	    pPal->palPalEntry[i].peBlue =
+		    (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask;
+	    pPal->palPalEntry[i].peFlags = 0;
+	}
+    } else {
+	/*
+	** Fill the logical palette with color ramps.
+	**
+	** Set up the logical palette so that it can be realized
+	** into the system palette as an identity palette.
+	**
+	** 1) The default static entries should be present and at the right
+	**    location.  The easiest way to do this is to grab them from
+	**    the current system palette.
+	**
+	** 2) All non-static entries should be initialized to unique values.
+	**    The easiest way to do this is to ensure that all of the non-static
+	**    entries have the PC_NOCOLLAPSE flag bit set.
+	*/
+	int numRamps = NUM_COLORS;
+	int rampSize = (paletteSize - 20) / numRamps;
+	int extra = (paletteSize - 20) - (numRamps * rampSize);
+	int i, r;
+
+	/*
+	** Initialize static entries by copying them from the
+	** current system palette.
+	*/
+	GetSystemPaletteEntries(hDC, 0, paletteSize, &pPal->palPalEntry[0]);
+
+	/*
+	** Fill in non-static entries with desired colors.
+	*/
+	for (r=0; r<numRamps; ++r) {
+	    int rampBase = r * rampSize + 10;
+	    PALETTEENTRY *pe = &pPal->palPalEntry[rampBase];
+	    int diffSize = (int) (rampSize * colors[r].ratio);
+	    int specSize = rampSize - diffSize;
+
+	    for (i=0; i<rampSize; ++i) {
+		GLfloat *c0, *c1;
+		GLint a;
+
+		if (i < diffSize) {
+		    c0 = colors[r].amb;
+		    c1 = colors[r].diff;
+		    a = (i * 255) / (diffSize - 1);
+		} else {
+		    c0 = colors[r].diff;
+		    c1 = colors[r].spec;
+		    a = ((i - diffSize) * 255) / (specSize - 1);
+		}
+
+		pe[i].peRed = (BYTE) (a * (c1[0] - c0[0]) + 255 * c0[0]);
+		pe[i].peGreen = (BYTE) (a * (c1[1] - c0[1]) + 255 * c0[1]);
+		pe[i].peBlue = (BYTE) (a * (c1[2] - c0[2]) + 255 * c0[2]);
+		pe[i].peFlags = PC_NOCOLLAPSE;
+	    }
+
+	    colors[r].indexes[0] = rampBase;
+	    colors[r].indexes[1] = rampBase + (diffSize-1);
+	    colors[r].indexes[2] = rampBase + (rampSize-1);
+	}
+
+	/*
+	** Initialize any remaining non-static entries.
+	*/
+	for (i=0; i<extra; ++i) {
+	    int index = numRamps*rampSize+10+i;
+	    PALETTEENTRY *pe = &pPal->palPalEntry[index];
+
+	    pe->peRed = (BYTE) 0;
+	    pe->peGreen = (BYTE) 0;
+	    pe->peBlue = (BYTE) 0;
+	    pe->peFlags = PC_NOCOLLAPSE;
+	}
+    }
+
+    hPalette = CreatePalette(pPal);
+    free(pPal);
+
+    if (hPalette) {
+	SelectPalette(hDC, hPalette, FALSE);
+	RealizePalette(hDC);
+    }
+}
+
+void
+setupPixelFormat(HDC hDC)
+{
+    PIXELFORMATDESCRIPTOR pfd = {
+	sizeof(PIXELFORMATDESCRIPTOR),	/* size of this pfd */
+	1,				/* version num */
+	PFD_SUPPORT_OPENGL,		/* support OpenGL */
+	0,				/* pixel type */
+	0,				/* 8-bit color depth */
+	0, 0, 0, 0, 0, 0,		/* color bits (ignored) */
+	0,				/* no alpha buffer */
+	0,				/* alpha bits (ignored) */
+	0,				/* no accumulation buffer */
+	0, 0, 0, 0,			/* accum bits (ignored) */
+	16,				/* depth buffer */
+	0,				/* no stencil buffer */
+	0,				/* no auxiliary buffers */
+	PFD_MAIN_PLANE,			/* main layer */
+	0,				/* reserved */
+	0, 0, 0,			/* no layer, visible, damage masks */
+    };
+    int SelectedPixelFormat;
+    BOOL retVal;
+
+    pfd.cColorBits = GetDeviceCaps(hDC, BITSPIXEL);
+
+    if (colorIndexMode) {
+	pfd.iPixelType = PFD_TYPE_COLORINDEX;
+    } else {
+	pfd.iPixelType = PFD_TYPE_RGBA;
+    }
+
+    if (doubleBuffered) {
+        pfd.dwFlags |= PFD_DOUBLEBUFFER;
+    }
+
+    if (renderToDIB) {
+	pfd.dwFlags |= PFD_DRAW_TO_BITMAP;
+    } else {
+	pfd.dwFlags |= PFD_DRAW_TO_WINDOW;
+    }
+
+    SelectedPixelFormat = ChoosePixelFormat(hDC, &pfd);
+    if (SelectedPixelFormat == 0) {
+	(void) MessageBox(WindowFromDC(hDC),
+		"Failed to find acceptable pixel format.",
+		"OpenGL application error",
+		MB_ICONERROR | MB_OK);
+	exit(1);
+    }
+
+    retVal = SetPixelFormat(hDC, SelectedPixelFormat, &pfd);
+    if (retVal != TRUE) {
+	(void) MessageBox(WindowFromDC(hDC),
+		"Failed to set pixel format.",
+		"OpenGL application error",
+		MB_ICONERROR | MB_OK);
+	exit(1);
+    }
+}
+
+LRESULT APIENTRY
+WndProc(
+    HWND hWnd,
+    UINT message,
+    WPARAM wParam,
+    LPARAM lParam)
+{
+    switch (message) {
+    case WM_CREATE:
+	return 0;
+    case WM_DESTROY:
+	PostQuitMessage(0);
+	return 0;
+    case WM_SIZE:
+	if (hGLRC) {
+	    winWidth = (int) LOWORD(lParam);
+	    winHeight = (int) HIWORD(lParam);
+	    /**/
+	    if (renderToDIB) {
+		resizeDIB(hDC);
+	    }
+	    /**/
+	    resize();
+	    return 0;
+	}
+    case WM_PALETTECHANGED:
+	/*
+	** Update palette mapping if this *is not* the active window.
+	*/
+	if (hGLRC && hPalette && (HWND) wParam != hWnd) {
+	    UnrealizeObject(hPalette);
+	    SelectPalette(hDC, hPalette, FALSE);
+	    RealizePalette(hDC);
+	    redraw();
+	    return 0;
+	}
+	break;
+    case WM_QUERYNEWPALETTE:
+	/*
+	** Update palette mapping if this *is* the active window.
+	*/
+	if (hGLRC && hPalette) {
+	    UnrealizeObject(hPalette);
+	    SelectPalette(hDC, hPalette, FALSE);
+	    RealizePalette(hDC);
+	    redraw();
+	    return TRUE;
+	}
+	break;
+    case WM_PAINT:
+	/*
+	** Update the window.  Don't use the device context returned by
+	** BeginPaint as it won't have the right palette selected into it.
+	*/
+	if (hGLRC) {
+	    PAINTSTRUCT ps;
+
+	    BeginPaint(hWnd, &ps);
+	    redraw();
+	    EndPaint(hWnd, &ps);
+	    return 0;
+	}
+	break;
+    case WM_CHAR:
+	switch ((int)wParam) {
+	case VK_ESCAPE:
+	    DestroyWindow(hWnd);
+	    return 0;
+	case VK_SPACE:
+	    if (idleFunc) {
+		idleFunc = NULL;
+	    } else {
+		idleFunc = doRedraw;
+	    }
+	default:
+	    break;
+	}
+	break;
+    default:
+	break;
+    }
+
+    /* Deal with any unprocessed messages */
+    return DefWindowProc(hWnd, message, wParam, lParam);
+}
+
+int APIENTRY
+WinMain(
+    HINSTANCE hCurrentInst,
+    HINSTANCE hPreviousInst,
+    LPSTR lpszCmdLine,
+    int nCmdShow)
+{
+    const GLubyte * Ret;
+    WNDCLASS wndClass;
+    HWND hWnd;
+    MSG msg;
+
+    __asm int 3;
+    Ret = glGetString( GL_EXTENSIONS );
+
+    /* Define and register a window class */
+    wndClass.style = CS_HREDRAW | CS_VREDRAW;
+    wndClass.lpfnWndProc = WndProc;
+    wndClass.cbClsExtra = 0;
+    wndClass.cbWndExtra = 0;
+    wndClass.hInstance = hCurrentInst;
+    wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+    wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
+    wndClass.hbrBackground = GetStockObject(WHITE_BRUSH);
+    wndClass.lpszMenuName = NULL;
+    wndClass.lpszClassName = className;
+    RegisterClass(&wndClass);
+
+    /* Create a window of the previously defined class */
+    hWnd = CreateWindow(
+	className,		/* Window class's name */
+	windowName,		/* Title bar text */
+	WS_OVERLAPPEDWINDOW |	/* The window's style */
+	WS_CLIPCHILDREN |
+	WS_CLIPSIBLINGS,
+	winX, winY,		/* Position */
+	winWidth, winHeight,	/* Size */
+	NULL,			/* Parent window's handle */
+	NULL,			/* Menu handle */
+	hCurrentInst,		/* Instance handle */
+	NULL);			/* No additional data */
+
+    /* Map the window to the screen */
+    ShowWindow(hWnd, nCmdShow);
+
+    /* Force the window to repaint itself */
+    UpdateWindow(hWnd);
+
+    /*
+    ** Set up for OpenGL rendering.  Bind the rendering context to
+    ** the same device context that the palette will be selected into.
+    */
+    hDC = GetDC(hWnd);
+    hDCFrontBuffer = hDC;
+    if (renderToDIB) {
+	hDC = CreateCompatibleDC(hDCFrontBuffer);
+	setupDIB(hDC);
+    }
+    Ret = glGetString( GL_EXTENSIONS );
+    setupPixelFormat(hDC);
+    Ret = glGetString( GL_EXTENSIONS );
+    setupPalette(hDC);
+    Ret = glGetString( GL_EXTENSIONS );
+    hGLRC = wglCreateContext(hDC);
+    Ret = glGetString( GL_EXTENSIONS );
+    wglMakeCurrent(hDC, hGLRC);
+    Ret = glGetString( GL_EXTENSIONS );
+    init();
+    idleFunc = doRedraw;
+    
+
+
+    /* Process Messages */
+    while (1) {
+	/* execute the idle function while there are no messages to process */
+	while (idleFunc &&
+	       PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) == FALSE)
+	{
+	    (*idleFunc)();
+	}
+	if (GetMessage(&msg, NULL, 0, 0) != TRUE) {
+	    break;
+	}
+	TranslateMessage(&msg);
+	DispatchMessage(&msg);
+    }
+
+    /*
+    ** Finish OpenGL rendering.
+    */
+    idleFunc = NULL;
+    if (hGLRC) {
+	wglMakeCurrent(NULL, NULL);
+	wglDeleteContext(hGLRC);
+    }
+    ReleaseDC(hWnd, hDC);
+
+    return msg.wParam;
+}