diff options
Diffstat (limited to 'xorg-server/hw/xwin/swrastwgl_dri/swrastwgl_dri.c')
| -rw-r--r-- | xorg-server/hw/xwin/swrastwgl_dri/swrastwgl_dri.c | 1200 |
1 files changed, 1200 insertions, 0 deletions
diff --git a/xorg-server/hw/xwin/swrastwgl_dri/swrastwgl_dri.c b/xorg-server/hw/xwin/swrastwgl_dri/swrastwgl_dri.c new file mode 100644 index 000000000..4c20c09ab --- /dev/null +++ b/xorg-server/hw/xwin/swrastwgl_dri/swrastwgl_dri.c @@ -0,0 +1,1200 @@ +#include <X11/Xwindows.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
+#include <GL/glx.h>
+#include <GL/internal/dri_interface.h>
+#include <stdint.h>
+
+#include <glx/glapi.h>
+#include <glx/glapitable.h>
+
+typedef unsigned char BYTE;
+typedef int BOOL;
+
+#ifdef _DEBUG
+#define PRINTF(...) ErrorF( __VA_ARGS__)
+#else
+#define PRINTF(...)
+#endif
+
+#define PUBLIC __declspec(dllexport)
+
+BOOL colorIndexMode = FALSE;
+BOOL doubleBuffered = FALSE;
+
+struct __DRIscreenRec
+{
+ int ScreenNum;
+ const __DRIextension **extensions;
+ const __DRIswrastLoaderExtension *swrast_loader;
+};
+
+struct __DRIcontextRec
+{
+ struct _glapi_table *Dispatch;
+
+ void *driverPrivate;
+ void *loaderPrivate;
+ __DRIdrawable *driDrawablePriv;
+ __DRIdrawable *driReadablePriv;
+ __DRIscreen *driScreenPriv;
+};
+
+struct __DRIdrawableRec
+{
+ HDC hDC;
+ HDC hDCFrontBuffer;
+ HGLRC hGLRC;
+ HPALETTE hPalette;
+ HBITMAP hBitmap;
+ int winWidth;
+ int winHeight;
+ VOID *bits;
+
+ void *driverPrivate;
+ void *loaderPrivate;
+ __DRIscreen *driScreenPriv;
+ int refcount;
+};
+
+/* 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 setupPalette(__DRIdrawable * pdp)
+{
+ PIXELFORMATDESCRIPTOR pfd;
+ LOGPALETTE* pPal;
+ int pixelFormat = GetPixelFormat(pdp->hDC);
+ int paletteSize;
+
+ PRINTF(__FUNCTION__": pdp %x\n", pdp);
+
+ DescribePixelFormat(pdp->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.
+ **pcp
+ ** 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(pdp->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;
+ }
+ }
+
+ pdp->hPalette = CreatePalette(pPal);
+ free(pPal);
+
+ if (pdp->hPalette) {
+ SelectPalette(pdp->hDC, pdp->hPalette, FALSE);
+ RealizePalette(pdp->hDC);
+ }
+}
+
+void setupPixelFormat(__DRIdrawable *pdp)
+{
+ 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;
+
+ PRINTF(__FUNCTION__": pdp %x\n", pdp);
+
+ pfd.cColorBits = GetDeviceCaps(pdp->hDC, BITSPIXEL);
+
+ if (colorIndexMode) {
+ pfd.iPixelType = PFD_TYPE_COLORINDEX;
+ } else {
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ }
+
+ if (doubleBuffered) {
+ pfd.dwFlags |= PFD_DOUBLEBUFFER;
+ }
+
+ pfd.dwFlags |= PFD_DRAW_TO_BITMAP;
+
+ SelectedPixelFormat = ChoosePixelFormat(pdp->hDC, &pfd);
+ if (SelectedPixelFormat == 0)
+ {
+ (void) MessageBox(WindowFromDC(pdp->hDC), "Failed to find acceptable pixel format.", "OpenGL application error", MB_ICONERROR | MB_OK);
+ exit(1);
+ }
+
+ retVal = SetPixelFormat(pdp->hDC, SelectedPixelFormat, &pfd);
+ if (retVal != TRUE)
+ {
+ MessageBox(WindowFromDC(pdp->hDC), "Failed to set pixel format.", "OpenGL application error", MB_ICONERROR | MB_OK);
+ exit(1);
+ }
+}
+
+void setupDIB(__DRIdrawable * pdp)
+{
+ HBITMAP hBitmap;
+ BITMAPINFO *bmInfo;
+ BITMAPINFOHEADER *bmHeader;
+ UINT usage;
+ VOID *base;
+ int bmiSize;
+ int bitsPerPixel;
+
+ PRINTF(__FUNCTION__": pdp %x\n", pdp);
+
+ bmiSize = sizeof(*bmInfo);
+ bitsPerPixel = GetDeviceCaps(pdp->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 = pdp->winWidth;
+ bmHeader->biHeight = pdp->winHeight;
+ 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(pdp->hDC, bmInfo, usage, &base, NULL, 0);
+ if (hBitmap == NULL)
+ {
+ (void) MessageBox(WindowFromDC(pdp->hDC), "Failed to create DIBSection.", "OpenGL application error", MB_ICONERROR | MB_OK);
+ exit(1);
+ }
+
+ pdp->bits=base;
+ SelectObject(pdp->hDC, hBitmap);
+ if (pdp->hBitmap) DeleteObject(pdp->hBitmap);
+ pdp->hBitmap = hBitmap;
+
+ free(bmInfo);
+}
+
+static void setupLoaderExtensions(__DRIscreen *psp, const __DRIextension **extensions)
+{
+ int i;
+
+ for (i = 0; extensions[i]; i++)
+ {
+ if (strcmp(extensions[i]->name, __DRI_SWRAST_LOADER) == 0)
+ psp->swrast_loader = (__DRIswrastLoaderExtension *) extensions[i];
+ }
+}
+
+static const __DRItexBufferExtension swrastTexBufferExtension = {
+ { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
+ NULL,// swrastSetTexBuffer,
+ NULL // swrastSetTexBuffer2
+};
+
+static const __DRIextension *dri_screen_extensions[] = {
+ &swrastTexBufferExtension.base,
+ NULL
+};
+
+struct gl_config
+{
+ GLboolean rgbMode;
+ GLboolean floatMode;
+ GLboolean colorIndexMode; /* XXX is this used anywhere? */
+ GLuint doubleBufferMode;
+ GLuint stereoMode;
+
+ GLboolean haveAccumBuffer;
+ GLboolean haveDepthBuffer;
+ GLboolean haveStencilBuffer;
+
+ GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */
+ GLuint redMask, greenMask, blueMask, alphaMask;
+ GLint rgbBits; /* total bits for rgb */
+ GLint indexBits; /* total bits for colorindex */
+
+ GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
+ GLint depthBits;
+ GLint stencilBits;
+
+ GLint numAuxBuffers;
+
+ GLint level;
+
+ /* EXT_visual_rating / GLX 1.2 */
+ GLint visualRating;
+
+ /* EXT_visual_info / GLX 1.2 */
+ GLint transparentPixel;
+ /* colors are floats scaled to ints */
+ GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;
+ GLint transparentIndex;
+
+ /* ARB_multisample / SGIS_multisample */
+ GLint sampleBuffers;
+ GLint samples;
+
+ /* SGIX_pbuffer / GLX 1.3 */
+ GLint maxPbufferWidth;
+ GLint maxPbufferHeight;
+ GLint maxPbufferPixels;
+ GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */
+ GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */
+
+ /* OML_swap_method */
+ GLint swapMethod;
+
+ /* EXT_texture_from_pixmap */
+ GLint bindToTextureRgb;
+ GLint bindToTextureRgba;
+ GLint bindToMipmapTexture;
+ GLint bindToTextureTargets;
+ GLint yInverted;
+
+ /* EXT_framebuffer_sRGB */
+ GLint sRGBCapable;
+};
+
+struct __DRIconfigRec {
+ struct gl_config modes;
+};
+
+#define __ATTRIB(attrib, field) \
+ { attrib, offsetof(struct gl_config, field) }
+
+static const struct { unsigned int attrib, offset; } attribMap[] = {
+ __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE, rgbBits),
+ __ATTRIB(__DRI_ATTRIB_LEVEL, level),
+ __ATTRIB(__DRI_ATTRIB_RED_SIZE, redBits),
+ __ATTRIB(__DRI_ATTRIB_GREEN_SIZE, greenBits),
+ __ATTRIB(__DRI_ATTRIB_BLUE_SIZE, blueBits),
+ __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE, alphaBits),
+ __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE, depthBits),
+ __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE, stencilBits),
+ __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE, accumRedBits),
+ __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE, accumGreenBits),
+ __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE, accumBlueBits),
+ __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE, accumAlphaBits),
+ __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS, sampleBuffers),
+ __ATTRIB(__DRI_ATTRIB_SAMPLES, samples),
+ __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER, doubleBufferMode),
+ __ATTRIB(__DRI_ATTRIB_STEREO, stereoMode),
+ __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS, numAuxBuffers),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE, transparentPixel),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE, transparentPixel),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE, transparentRed),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE, transparentGreen),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE, transparentBlue),
+ __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE, transparentAlpha),
+ __ATTRIB(__DRI_ATTRIB_FLOAT_MODE, floatMode),
+ __ATTRIB(__DRI_ATTRIB_RED_MASK, redMask),
+ __ATTRIB(__DRI_ATTRIB_GREEN_MASK, greenMask),
+ __ATTRIB(__DRI_ATTRIB_BLUE_MASK, blueMask),
+ __ATTRIB(__DRI_ATTRIB_ALPHA_MASK, alphaMask),
+ __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH, maxPbufferWidth),
+ __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT, maxPbufferHeight),
+ __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS, maxPbufferPixels),
+ __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH, optimalPbufferWidth),
+ __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT, optimalPbufferHeight),
+ __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, swapMethod),
+ __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB, bindToTextureRgb),
+ __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA, bindToTextureRgba),
+ __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE, bindToMipmapTexture),
+ __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS, bindToTextureTargets),
+ __ATTRIB(__DRI_ATTRIB_YINVERTED, yInverted),
+ __ATTRIB(__DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE, sRGBCapable),
+
+ /* The struct field doesn't matter here, these are handled by the
+ * switch in driGetConfigAttribIndex. We need them in the array
+ * so the iterator includes them though.*/
+ __ATTRIB(__DRI_ATTRIB_RENDER_TYPE, level),
+ __ATTRIB(__DRI_ATTRIB_CONFIG_CAVEAT, level),
+ __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, level)
+};
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+__DRIconfig **
+driCreateConfigs(GLenum fb_format, GLenum fb_type,
+ const uint8_t * depth_bits, const uint8_t * stencil_bits,
+ unsigned num_depth_stencil_bits,
+ const GLenum * db_modes, unsigned num_db_modes,
+ const uint8_t * msaa_samples, unsigned num_msaa_modes,
+ GLboolean enable_accum)
+{
+ static const uint8_t bits_table[4][4] = {
+ /* R G B A */
+ { 3, 3, 2, 0 }, /* Any GL_UNSIGNED_BYTE_3_3_2 */
+ { 5, 6, 5, 0 }, /* Any GL_UNSIGNED_SHORT_5_6_5 */
+ { 8, 8, 8, 0 }, /* Any RGB with any GL_UNSIGNED_INT_8_8_8_8 */
+ { 8, 8, 8, 8 } /* Any RGBA with any GL_UNSIGNED_INT_8_8_8_8 */
+ };
+
+ static const uint32_t masks_table_rgb[6][4] = {
+ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 3_3_2 */
+ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 2_3_3_REV */
+ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */
+ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */
+ { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x00000000 }, /* 8_8_8_8 */
+ { 0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000 } /* 8_8_8_8_REV */
+ };
+
+ static const uint32_t masks_table_rgba[6][4] = {
+ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 3_3_2 */
+ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 2_3_3_REV */
+ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */
+ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */
+ { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF }, /* 8_8_8_8 */
+ { 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 }, /* 8_8_8_8_REV */
+ };
+
+ static const uint32_t masks_table_bgr[6][4] = {
+ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 3_3_2 */
+ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 2_3_3_REV */
+ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */
+ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */
+ { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x00000000 }, /* 8_8_8_8 */
+ { 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 }, /* 8_8_8_8_REV */
+ };
+
+ static const uint32_t masks_table_bgra[6][4] = {
+ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 3_3_2 */
+ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 2_3_3_REV */
+ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */
+ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */
+ { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x000000FF }, /* 8_8_8_8 */
+ { 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 }, /* 8_8_8_8_REV */
+ };
+
+ static const uint8_t bytes_per_pixel[6] = {
+ 1, /* 3_3_2 */
+ 1, /* 2_3_3_REV */
+ 2, /* 5_6_5 */
+ 2, /* 5_6_5_REV */
+ 4, /* 8_8_8_8 */
+ 4 /* 8_8_8_8_REV */
+
+ };
+
+ const uint8_t * bits;
+ const uint32_t * masks;
+ int index;
+ __DRIconfig **configs, **c;
+
+ struct gl_config *modes;
+ unsigned i, j, k, h;
+ unsigned num_modes;
+ unsigned num_accum_bits = (enable_accum) ? 2 : 1;
+
+ PRINTF(__FUNCTION__"\n");
+ switch ( fb_type ) {
+ case GL_UNSIGNED_BYTE_3_3_2:
+ index = 0;
+ break;
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ index = 1;
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5:
+ index = 2;
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ index = 3;
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ index = 4;
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ index = 5;
+ break;
+ default:
+ fprintf( stderr, "[%s:%u] Unknown framebuffer type 0x%04x.\n",
+ __FUNCTION__, __LINE__, fb_type );
+ return NULL;
+ }
+
+
+ /* Valid types are GL_UNSIGNED_SHORT_5_6_5 and GL_UNSIGNED_INT_8_8_8_8 and
+ * the _REV versions.
+ *
+ * Valid formats are GL_RGBA, GL_RGB, and GL_BGRA.
+ */
+
+ switch ( fb_format ) {
+ case GL_RGB:
+ masks = masks_table_rgb[ index ];
+ break;
+
+ case GL_RGBA:
+ masks = masks_table_rgba[ index ];
+ break;
+
+ case GL_BGR:
+ masks = masks_table_bgr[ index ];
+ break;
+
+ case GL_BGRA:
+ masks = masks_table_bgra[ index ];
+ break;
+
+ default:
+ fprintf( stderr, "[%s:%u] Unknown framebuffer format 0x%04x.\n",
+ __FUNCTION__, __LINE__, fb_format );
+ return NULL;
+ }
+
+ switch ( bytes_per_pixel[ index ] ) {
+ case 1:
+ bits = bits_table[0];
+ break;
+ case 2:
+ bits = bits_table[1];
+ break;
+ default:
+ bits = ((fb_format == GL_RGB) || (fb_format == GL_BGR))
+ ? bits_table[2]
+ : bits_table[3];
+ break;
+ }
+
+ num_modes = num_depth_stencil_bits * num_db_modes * num_accum_bits * num_msaa_modes;
+ configs = calloc(1, (num_modes + 1) * sizeof *configs);
+ if (configs == NULL)
+ return NULL;
+
+ c = configs;
+ for ( k = 0 ; k < num_depth_stencil_bits ; k++ ) {
+ for ( i = 0 ; i < num_db_modes ; i++ ) {
+ for ( h = 0 ; h < num_msaa_modes; h++ ) {
+ for ( j = 0 ; j < num_accum_bits ; j++ ) {
+ *c = malloc (sizeof **c);
+ modes = &(*c)->modes;
+ c++;
+
+ memset(modes, 0, sizeof *modes);
+ modes->redBits = bits[0];
+ modes->greenBits = bits[1];
+ modes->blueBits = bits[2];
+ modes->alphaBits = bits[3];
+ modes->redMask = masks[0];
+ modes->greenMask = masks[1];
+ modes->blueMask = masks[2];
+ modes->alphaMask = masks[3];
+ modes->rgbBits = modes->redBits + modes->greenBits
+ + modes->blueBits + modes->alphaBits;
+
+ modes->accumRedBits = 16 * j;
+ modes->accumGreenBits = 16 * j;
+ modes->accumBlueBits = 16 * j;
+ modes->accumAlphaBits = (masks[3] != 0) ? 16 * j : 0;
+ modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG;
+
+ modes->stencilBits = stencil_bits[k];
+ modes->depthBits = depth_bits[k];
+
+ modes->transparentPixel = GLX_NONE;
+ modes->transparentRed = GLX_DONT_CARE;
+ modes->transparentGreen = GLX_DONT_CARE;
+ modes->transparentBlue = GLX_DONT_CARE;
+ modes->transparentAlpha = GLX_DONT_CARE;
+ modes->transparentIndex = GLX_DONT_CARE;
+ modes->rgbMode = GL_TRUE;
+
+ if ( db_modes[i] == GLX_NONE ) {
+ modes->doubleBufferMode = GL_FALSE;
+ }
+ else {
+ modes->doubleBufferMode = GL_TRUE;
+ modes->swapMethod = db_modes[i];
+ }
+
+ modes->samples = msaa_samples[h];
+ modes->sampleBuffers = modes->samples ? 1 : 0;
+
+
+ modes->haveAccumBuffer = ((modes->accumRedBits +
+ modes->accumGreenBits +
+ modes->accumBlueBits +
+ modes->accumAlphaBits) > 0);
+ modes->haveDepthBuffer = (modes->depthBits > 0);
+ modes->haveStencilBuffer = (modes->stencilBits > 0);
+
+ modes->bindToTextureRgb = GL_TRUE;
+ modes->bindToTextureRgba = GL_TRUE;
+ modes->bindToMipmapTexture = GL_FALSE;
+ modes->bindToTextureTargets =
+ __DRI_ATTRIB_TEXTURE_1D_BIT |
+ __DRI_ATTRIB_TEXTURE_2D_BIT |
+ __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT;
+
+ modes->sRGBCapable = GL_FALSE;
+ }
+ }
+ }
+ }
+ *c = NULL;
+
+ return configs;
+}
+
+static __DRIconfig **
+swrastFillInModes(__DRIscreen *psp,
+ unsigned pixel_bits, unsigned depth_bits,
+ unsigned stencil_bits, GLboolean have_back_buffer)
+{
+ __DRIconfig **configs;
+ unsigned depth_buffer_factor;
+ unsigned back_buffer_factor;
+ GLenum fb_format;
+ GLenum fb_type;
+
+ /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
+ * support pageflipping at all.
+ */
+ static const GLenum back_buffer_modes[] = {
+ GLX_NONE, GLX_SWAP_UNDEFINED_OML
+ };
+
+ uint8_t depth_bits_array[4];
+ uint8_t stencil_bits_array[4];
+ uint8_t msaa_samples_array[1];
+
+ (void) psp;
+ (void) have_back_buffer;
+
+ PRINTF(__FUNCTION__"\n");
+
+ depth_bits_array[0] = 0;
+ depth_bits_array[1] = 0;
+ depth_bits_array[2] = depth_bits;
+ depth_bits_array[3] = depth_bits;
+
+ /* Just like with the accumulation buffer, always provide some modes
+ * with a stencil buffer.
+ */
+ stencil_bits_array[0] = 0;
+ stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
+ stencil_bits_array[2] = 0;
+ stencil_bits_array[3] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+ msaa_samples_array[0] = 0;
+
+ depth_buffer_factor = 4;
+ back_buffer_factor = 2;
+
+ switch (pixel_bits) {
+ case 8:
+ fb_format = GL_RGB;
+ fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;
+ break;
+ case 16:
+ fb_format = GL_RGB;
+ fb_type = GL_UNSIGNED_SHORT_5_6_5;
+ break;
+ case 24:
+ fb_format = GL_BGR;
+ fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ break;
+ case 32:
+ fb_format = GL_BGRA;
+ fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+ break;
+ default:
+ fprintf(stderr, "[%s:%u] bad depth %d\n", __FUNCTION__, __LINE__,
+ pixel_bits);
+ return NULL;
+ }
+
+ configs = driCreateConfigs(fb_format, fb_type,
+ depth_bits_array, stencil_bits_array,
+ depth_buffer_factor, back_buffer_modes,
+ back_buffer_factor, msaa_samples_array, 1,
+ GL_TRUE);
+ if (configs == NULL) {
+ fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __FUNCTION__,
+ __LINE__);
+ return NULL;
+ }
+
+ return configs;
+}
+
+__DRIconfig **driConcatConfigs(__DRIconfig **a, __DRIconfig **b)
+{
+ __DRIconfig **all;
+ int i, j, index;
+
+ PRINTF(__FUNCTION__"\n");
+
+ i = 0;
+ while (a[i] != NULL)
+ i++;
+ j = 0;
+ while (b[j] != NULL)
+ j++;
+
+ all = malloc((i + j + 1) * sizeof *all);
+ index = 0;
+ for (i = 0; a[i] != NULL; i++)
+ all[index++] = a[i];
+ for (j = 0; b[j] != NULL; j++)
+ all[index++] = b[j];
+ all[index++] = NULL;
+
+ free(a);
+ free(b);
+
+ return all;
+}
+
+static int driGetConfigAttribIndex(const __DRIconfig *config, unsigned int index, unsigned int *value)
+{
+ switch (attribMap[index].attrib) {
+ case __DRI_ATTRIB_RENDER_TYPE:
+ /* no support for color index mode */
+ *value = __DRI_ATTRIB_RGBA_BIT;
+ break;
+ case __DRI_ATTRIB_CONFIG_CAVEAT:
+ if (config->modes.visualRating == GLX_NON_CONFORMANT_CONFIG)
+ *value = __DRI_ATTRIB_NON_CONFORMANT_CONFIG;
+ else if (config->modes.visualRating == GLX_SLOW_CONFIG)
+ *value = __DRI_ATTRIB_SLOW_BIT;
+ else
+ *value = 0;
+ break;
+ case __DRI_ATTRIB_SWAP_METHOD:
+ /* XXX no return value??? */
+ break;
+
+ case __DRI_ATTRIB_FLOAT_MODE:
+ /* this field is not int-sized */
+ *value = config->modes.floatMode;
+ break;
+
+ default:
+ /* any other int-sized field */
+ *value = *(unsigned int *)
+ ((char *) &config->modes + attribMap[index].offset);
+ break;
+ }
+
+ return GL_TRUE;
+}
+
+int driIndexConfigAttrib(const __DRIconfig *config, int index, unsigned int *attrib, unsigned int *value)
+{
+ if (index >= 0 && index < ARRAY_SIZE(attribMap))
+ {
+ *attrib = attribMap[index].attrib;
+ return driGetConfigAttribIndex(config, index, value);
+ }
+
+ return GL_FALSE;
+}
+
+static const __DRIconfig **dri_init_screen(__DRIscreen * psp)
+{
+ __DRIconfig **configs8, **configs16, **configs24, **configs32;
+
+ PRINTF(__FUNCTION__": psp %x\n");
+
+ psp->extensions = dri_screen_extensions;
+
+ configs8 = swrastFillInModes(psp, 8, 8, 0, 1);
+ configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
+ configs24 = swrastFillInModes(psp, 24, 24, 8, 1);
+ configs32 = swrastFillInModes(psp, 32, 24, 8, 1);
+
+ configs16 = driConcatConfigs(configs8, configs16);
+ configs24 = driConcatConfigs(configs16, configs24);
+ configs32 = driConcatConfigs(configs24, configs32);
+
+ return (const __DRIconfig **)configs32;
+}
+
+static __DRIscreen *driCreateNewScreen(int scrn, const __DRIextension **extensions, const __DRIconfig ***driver_configs, void *data)
+{
+ static const __DRIextension *emptyExtensionList[] = { NULL };
+ __DRIscreen *psp;
+
+ psp = calloc(sizeof(struct __DRIscreenRec),1);
+ if (!psp)
+ return NULL;
+
+ PRINTF(__FUNCTION__": psp %x\n",psp);
+
+ setupLoaderExtensions(psp, extensions);
+
+ psp->extensions = emptyExtensionList;
+ psp->ScreenNum = scrn;
+
+ *driver_configs = dri_init_screen(psp);
+
+ if (*driver_configs == NULL)
+ {
+ free(psp);
+ return NULL;
+ }
+
+ return psp;
+}
+
+static __DRIcontext *driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config, __DRIcontext *shared, void *data)
+{
+ __DRIcontext *pcp;
+ void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
+
+ pcp = calloc(sizeof(struct __DRIcontextRec),1);
+ if (!pcp)
+ return NULL;
+
+ PRINTF(__FUNCTION__": psp %x, shared %x, data %x, pcp %x\n", psp, shared, data, pcp);
+
+ pcp->loaderPrivate = data;
+
+ pcp->driScreenPriv = psp;
+ pcp->driDrawablePriv = NULL;
+ pcp->driReadablePriv = NULL;
+
+ pcp->Dispatch=calloc(sizeof(void*), (sizeof(struct _glapi_table) / sizeof(void *) + MAX_EXTENSION_FUNCS));
+ _glapi_set_dispatch(pcp->Dispatch);
+
+ glWinSetupDispatchTable();
+
+ return pcp;
+}
+
+static const __DRIextension **driGetExtensions(__DRIscreen *psp)
+{
+ return psp->extensions;
+}
+
+static void driDrawableCheckSize(__DRIdrawable *pdp)
+{
+ int x;
+ int y;
+ int w;
+ int h;
+ pdp->driScreenPriv->swrast_loader->getDrawableInfo(pdp, &x, &y, &w, &h, pdp->loaderPrivate);
+ if (pdp->winWidth==w && pdp->winHeight==h)
+ return;
+ pdp->winWidth=w;
+ pdp->winHeight=h;
+ setupDIB(pdp);
+}
+static __DRIdrawable *driCreateNewDrawable(__DRIscreen *psp, const __DRIconfig *config, void *data)
+{
+ __DRIdrawable *pdp = calloc(sizeof(struct __DRIdrawableRec),1);
+ if (!pdp)
+ return NULL;
+
+ PRINTF(__FUNCTION__": pdp %x, data %x\n", pdp, data);
+
+ pdp->loaderPrivate = data;
+
+ pdp->driScreenPriv = psp;
+
+ pdp->refcount++;
+
+ pdp->hDCFrontBuffer = GetDC(NULL);
+ pdp->hDC = CreateCompatibleDC(pdp->hDCFrontBuffer);
+
+ driDrawableCheckSize(pdp);
+
+ setupPixelFormat(pdp);
+ setupPalette(pdp);
+ pdp->hGLRC = wglCreateContext(pdp->hDC);
+
+ return pdp;
+}
+
+static __DRIcontext *current_pcp;
+
+static int driBindContext(__DRIcontext *pcp, __DRIdrawable *pdp, __DRIdrawable *prp)
+{
+ PRINTF(__FUNCTION__": pcp %x, pdp %x, prp %x\n",pcp, pdp, prp);
+
+ if (current_pcp)
+ {
+ driUnbindContext(current_pcp);
+ current_pcp=NULL;
+ }
+
+ /* Bind the drawable to the context */
+ if (pcp)
+ {
+ static int Created=0;
+
+ if (!pdp || !prp)
+ {
+ return GL_TRUE;
+ }
+
+ pcp->driDrawablePriv = pdp;
+ pcp->driReadablePriv = prp;
+ if (pdp)
+ {
+ pdp->refcount++;
+ }
+ if ( prp && pdp != prp )
+ {
+ prp->refcount++;
+ }
+
+ if (wglGetCurrentContext()!=pdp->hGLRC)
+ {
+ if (!wglMakeCurrent(pdp->hDC, pdp->hGLRC))
+ ErrorF("Error making context current: pdp %x\n",pdp);
+ PRINTF("pdp->hDC %x to pdp->hGLRC %x\n",pdp->hDC, pdp->hGLRC);
+ }
+ if (Created)
+ {
+ // initialize wgl extension proc pointers (don't call them before here...)
+ // (but we need to have a current context for them to be resolvable)
+ Created=1;
+ wglResolveExtensionProcs();
+ }
+ current_pcp=pcp;
+ _glapi_set_dispatch(pcp->Dispatch);
+ }
+
+ return GL_TRUE;
+}
+
+static void driDestroyDrawable(__DRIdrawable *pdp)
+{
+ if (pdp)
+ {
+ pdp->refcount--;
+ if (pdp->refcount) return;
+
+ PRINTF(__FUNCTION__": pdp %x\n", pdp);
+
+ wglDeleteContext (pdp->hGLRC);
+ DeleteDC(pdp->hDC);
+ ReleaseDC(NULL, pdp->hDCFrontBuffer);
+ DeleteObject(pdp->hBitmap);
+ if (pdp->hPalette) DeleteObject(pdp->hPalette);
+
+ free(pdp);
+ }
+}
+
+static int driUnbindContext(__DRIcontext *pcp)
+{
+ __DRIdrawable *pdp;
+ __DRIdrawable *prp;
+
+ PRINTF(__FUNCTION__": pcp %x\n", pcp);
+
+ if (pcp == NULL)
+ return GL_FALSE;
+
+ pdp = pcp->driDrawablePriv;
+ prp = pcp->driReadablePriv;
+
+ /* already unbound */
+ if (!pdp && !prp)
+ {
+ PRINTF(__FUNCTION__": pcp %x already unbound\n", pcp);
+ return GL_TRUE;
+ }
+
+ if (wglGetCurrentContext()==pdp->hGLRC)
+ {
+ current_pcp=NULL;
+ wglMakeCurrent(pdp->hDC, NULL);
+ PRINTF("pdp->hDC %x to NULL\n", pdp->hDC);
+ }
+
+ driDestroyDrawable(pdp);
+ if (prp!=pdp)
+ driDestroyDrawable(prp);
+
+ pcp->driDrawablePriv = NULL;
+ pcp->driReadablePriv = NULL;
+ _glapi_set_dispatch(NULL);
+
+ return GL_TRUE;
+}
+
+static void driDestroyContext(__DRIcontext *pcp)
+{
+ PRINTF(__FUNCTION__": pcp %x\n", pcp);
+ if (pcp)
+ {
+ driUnbindContext(pcp);
+ free(pcp);
+ }
+}
+
+static void driDestroyScreen(__DRIscreen *psp)
+{
+ PRINTF(__FUNCTION__": psp %x\n", psp);
+ if (psp)
+ {
+ free(psp);
+ }
+}
+
+static void driSwapBuffers(__DRIdrawable *pdp)
+{
+// GET_CURRENT_CONTEXT(ctx);
+ /* Revert image */
+ int Row;
+ int UpRow;
+ int ColCount;
+ int HalfRowCount;
+ int *pBits;
+
+ //GdiFlush();
+
+ driDrawableCheckSize(pdp);
+
+ ColCount=pdp->winWidth;
+ HalfRowCount=pdp->winHeight/2;
+ pBits=(int*)pdp->bits;
+
+ for (Row=0,UpRow=2*HalfRowCount-1; Row<HalfRowCount; Row++,UpRow--)
+ {
+ int j;
+ for (j=0; j<ColCount; j++)
+ {
+ int Temp=pBits[Row*ColCount+j];
+ pBits[Row*ColCount+j]=pBits[UpRow*ColCount+j];
+ pBits[UpRow*ColCount+j]=Temp;
+ }
+ }
+
+ pdp->driScreenPriv->swrast_loader->putImage(pdp, __DRI_SWRAST_IMAGE_OP_SWAP, 0, 0, pdp->winWidth, pdp->winHeight, pdp->bits, pdp->loaderPrivate);
+}
+
+const __DRIcoreExtension driCoreExtension = {
+ { __DRI_CORE, __DRI_CORE_VERSION },
+ NULL, /* driCreateNewScreen */
+ driDestroyScreen,
+ driGetExtensions,
+ NULL,// driGetConfigAttrib,
+ driIndexConfigAttrib,
+ NULL, /* driCreateNewDrawable */
+ driDestroyDrawable,
+ driSwapBuffers,
+ driCreateNewContext,
+ NULL,// driCopyContext,
+ driDestroyContext,
+ driBindContext,
+ driUnbindContext
+};
+
+const __DRIswrastExtension driWGLExtension = {
+ { __DRI_SWRAST, __DRI_SWRAST_VERSION },
+ driCreateNewScreen,
+ driCreateNewDrawable,
+ NULL // driCreateNewContextForAPI
+};
+
+/* This is the table of extensions that the loader will dlsym() for. */
+PUBLIC const __DRIextension *__driDriverExtensions[] =
+{
+ &driCoreExtension.base,
+ &driWGLExtension.base,
+ NULL
+};
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