--- /dev/null
+/*
+ * Test the GLFBDev interface. Only tested with radeonfb driver!!!!
+ *
+ * Written by Brian Paul
+ */
+
+
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <linux/fb.h>
+#include <linux/kd.h>
+#include <linux/vt.h>
+#include <GL/gl.h>
+#include <GL/glfbdev.h>
+#include <math.h>
+
+#define DEFAULT_DEPTH 8
+
+static struct fb_fix_screeninfo FixedInfo;
+static struct fb_var_screeninfo VarInfo, OrigVarInfo;
+static int DesiredDepth = 0;
+static int OriginalVT = -1;
+static int ConsoleFD = -1;
+static int FrameBufferFD = -1;
+static caddr_t FrameBuffer = (caddr_t) -1;
+static caddr_t MMIOAddress = (caddr_t) -1;
+
+
+static void
+print_fixed_info(const struct fb_fix_screeninfo *fixed, const char *s)
+{
+ static const char *visuals[] = {
+ "MONO01", "MONO10", "TRUECOLOR", "PSEUDOCOLOR",
+ "DIRECTCOLOR", "STATIC_PSEUDOCOLOR"
+ };
+
+ printf("%s info -----------------------\n", s);
+ printf("id = %16s\n", fixed->id);
+ printf("smem_start = 0x%lx\n", fixed->smem_start);
+ printf("smem_len = %d (0x%x)\n", fixed->smem_len, fixed->smem_len);
+ printf("type = 0x%x\n", fixed->type);
+ printf("type_aux = 0x%x\n", fixed->type_aux);
+ printf("visual = 0x%x (%s)\n", fixed->visual, visuals[fixed->visual]);
+ printf("xpanstep = %d\n", fixed->xpanstep);
+ printf("ypanstep = %d\n", fixed->ypanstep);
+ printf("ywrapstep = %d\n", fixed->ywrapstep);
+ printf("line_length = %d\n", fixed->line_length);
+ printf("mmio_start = 0x%lx\n", fixed->mmio_start);
+ printf("mmio_len = %d (0x%x)\n", fixed->mmio_len, fixed->mmio_len);
+ printf("accel = 0x%x\n", fixed->accel);
+}
+
+
+static void
+print_var_info(const struct fb_var_screeninfo *var, const char *s)
+{
+ printf("%s info -----------------------\n", s);
+ printf("xres = %d\n", var->xres);
+ printf("yres = %d\n", var->yres);
+ printf("xres_virtual = %d\n", var->xres_virtual);
+ printf("yres_virtual = %d\n", var->yres_virtual);
+ printf("xoffset = %d\n", var->xoffset);
+ printf("yoffset = %d\n", var->yoffset);
+ printf("bits_per_pixel = %d\n", var->bits_per_pixel);
+ printf("grayscale = %d\n", var->grayscale);
+
+ printf("red.offset = %d length = %d msb_right = %d\n",
+ var->red.offset, var->red.length, var->red.msb_right);
+ printf("green.offset = %d length = %d msb_right = %d\n",
+ var->green.offset, var->green.length, var->green.msb_right);
+ printf("blue.offset = %d length = %d msb_right = %d\n",
+ var->blue.offset, var->blue.length, var->blue.msb_right);
+ printf("transp.offset = %d length = %d msb_right = %d\n",
+ var->transp.offset, var->transp.length, var->transp.msb_right);
+
+ printf("nonstd = %d\n", var->nonstd);
+ printf("activate = %d\n", var->activate);
+ printf("height = %d mm\n", var->height);
+ printf("width = %d mm\n", var->width);
+ printf("accel_flags = 0x%x\n", var->accel_flags);
+ printf("pixclock = %d\n", var->pixclock);
+ printf("left_margin = %d\n", var->left_margin);
+ printf("right_margin = %d\n", var->right_margin);
+ printf("upper_margin = %d\n", var->upper_margin);
+ printf("lower_margin = %d\n", var->lower_margin);
+ printf("hsync_len = %d\n", var->hsync_len);
+ printf("vsync_len = %d\n", var->vsync_len);
+ printf("sync = %d\n", var->sync);
+ printf("vmode = %d\n", var->vmode);
+}
+
+
+static void
+signal_handler(int signumber)
+{
+ signal(signumber, SIG_IGN); /* prevent recursion! */
+ fprintf(stderr, "error: got signal %d (exiting)\n", signumber);
+ exit(1);
+}
+
+
+static void
+initialize_fbdev( void )
+{
+ char ttystr[1000];
+ int fd, vtnumber, ttyfd;
+ int sz;
+
+ (void) sz;
+
+ if (geteuid()) {
+ fprintf(stderr, "error: you need to be root\n");
+ exit(1);
+ }
+
+#if 1
+ /* open the framebuffer device */
+ FrameBufferFD = open("/dev/fb0", O_RDWR);
+ if (FrameBufferFD < 0) {
+ fprintf(stderr, "Error opening /dev/fb0: %s\n", strerror(errno));
+ exit(1);
+ }
+#endif
+
+ /* open /dev/tty0 and get the vt number */
+ if ((fd = open("/dev/tty0", O_WRONLY, 0)) < 0) {
+ fprintf(stderr, "error opening /dev/tty0\n");
+ exit(1);
+ }
+ if (ioctl(fd, VT_OPENQRY, &vtnumber) < 0 || vtnumber < 0) {
+ fprintf(stderr, "error: couldn't get a free vt\n");
+ exit(1);
+ }
+ close(fd);
+
+ /* open the console tty */
+ sprintf(ttystr, "/dev/tty%d", vtnumber); /* /dev/tty1-64 */
+ ConsoleFD = open(ttystr, O_RDWR | O_NDELAY, 0);
+ if (ConsoleFD < 0) {
+ fprintf(stderr, "error couldn't open console fd\n");
+ exit(1);
+ }
+
+ /* save current vt number */
+ {
+ struct vt_stat vts;
+ if (ioctl(ConsoleFD, VT_GETSTATE, &vts) == 0)
+ OriginalVT = vts.v_active;
+ }
+
+ /* disconnect from controlling tty */
+ ttyfd = open("/dev/tty", O_RDWR);
+ if (ttyfd >= 0) {
+ ioctl(ttyfd, TIOCNOTTY, 0);
+ close(ttyfd);
+ }
+
+ /* some magic to restore the vt when we exit */
+ {
+ struct vt_mode vt;
+ if (ioctl(ConsoleFD, VT_ACTIVATE, vtnumber) != 0)
+ printf("ioctl VT_ACTIVATE: %s\n", strerror(errno));
+ if (ioctl(ConsoleFD, VT_WAITACTIVE, vtnumber) != 0)
+ printf("ioctl VT_WAITACTIVE: %s\n", strerror(errno));
+
+ if (ioctl(ConsoleFD, VT_GETMODE, &vt) < 0) {
+ fprintf(stderr, "error: ioctl VT_GETMODE: %s\n", strerror(errno));
+ exit(1);
+ }
+
+ vt.mode = VT_PROCESS;
+ vt.relsig = SIGUSR1;
+ vt.acqsig = SIGUSR1;
+ if (ioctl(ConsoleFD, VT_SETMODE, &vt) < 0) {
+ fprintf(stderr, "error: ioctl(VT_SETMODE) failed: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+ }
+
+ /* go into graphics mode */
+ if (ioctl(ConsoleFD, KDSETMODE, KD_GRAPHICS) < 0) {
+ fprintf(stderr, "error: ioctl(KDSETMODE, KD_GRAPHICS) failed: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+
+#if 0
+ /* open the framebuffer device */
+ FrameBufferFD = open("/dev/fb0", O_RDWR);
+ if (FrameBufferFD < 0) {
+ fprintf(stderr, "Error opening /dev/fb0: %s\n", strerror(errno));
+ exit(1);
+ }
+#endif
+
+ /* Get the fixed screen info */
+ if (ioctl(FrameBufferFD, FBIOGET_FSCREENINFO, &FixedInfo)) {
+ fprintf(stderr, "error: ioctl(FBIOGET_FSCREENINFO) failed: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ print_fixed_info(&FixedInfo, "Fixed");
+
+
+ /* get the variable screen info */
+ if (ioctl(FrameBufferFD, FBIOGET_VSCREENINFO, &OrigVarInfo)) {
+ fprintf(stderr, "error: ioctl(FBIOGET_VSCREENINFO) failed: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ print_var_info(&OrigVarInfo, "Orig Var");
+
+ /* operate on a copy */
+ VarInfo = OrigVarInfo;
+
+ /* set the depth, resolution, etc */
+ DesiredDepth = 32;
+ if (DesiredDepth)
+ VarInfo.bits_per_pixel = DesiredDepth;
+
+ if (VarInfo.bits_per_pixel == 16) {
+ VarInfo.red.offset = 11;
+ VarInfo.green.offset = 5;
+ VarInfo.blue.offset = 0;
+ VarInfo.red.length = 5;
+ VarInfo.green.length = 6;
+ VarInfo.blue.length = 5;
+ VarInfo.transp.offset = 0;
+ VarInfo.transp.length = 0;
+ }
+ else if (VarInfo.bits_per_pixel == 32) {
+ VarInfo.red.offset = 16;
+ VarInfo.green.offset = 8;
+ VarInfo.blue.offset = 0;
+ VarInfo.transp.offset = 24;
+ VarInfo.red.length = 8;
+ VarInfo.green.length = 8;
+ VarInfo.blue.length = 8;
+ VarInfo.transp.length = 8;
+ }
+ /* timing values taken from /etc/fb.modes (1280x1024 @ 75Hz) */
+ VarInfo.xres_virtual = VarInfo.xres = 1280;
+ VarInfo.yres_virtual = VarInfo.yres = 1024;
+ VarInfo.pixclock = 7408;
+ VarInfo.left_margin = 248;
+ VarInfo.right_margin = 16;
+ VarInfo.upper_margin = 38;
+ VarInfo.lower_margin = 1;
+ VarInfo.hsync_len = 144;
+ VarInfo.vsync_len = 3;
+
+ VarInfo.xoffset = 0;
+ VarInfo.yoffset = 0;
+ VarInfo.nonstd = 0;
+ VarInfo.vmode &= ~FB_VMODE_YWRAP; /* turn off scrolling */
+
+ /* set new variable screen info */
+ if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &VarInfo)) {
+ fprintf(stderr, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ print_var_info(&VarInfo, "New Var");
+
+ if (FixedInfo.visual != FB_VISUAL_TRUECOLOR &&
+ FixedInfo.visual != FB_VISUAL_DIRECTCOLOR) {
+ fprintf(stderr, "non-TRUE/DIRECT-COLOR visuals (0x%x) not supported by this demo.\n", FixedInfo.visual);
+ exit(1);
+ }
+
+ /* initialize colormap */
+ if (FixedInfo.visual == FB_VISUAL_DIRECTCOLOR) {
+ struct fb_cmap cmap;
+ unsigned short red[256], green[256], blue[256];
+ int i;
+
+ /* we're assuming 256 entries here */
+ printf("initializing directcolor colormap\n");
+ cmap.start = 0;
+ cmap.len = 256;
+ cmap.red = red;
+ cmap.green = green;
+ cmap.blue = blue;
+ cmap.transp = NULL;
+ for (i = 0; i < cmap.len; i++) {
+ red[i] = green[i] = blue[i] = (i << 8) | i;
+ }
+ if (ioctl(FrameBufferFD, FBIOPUTCMAP, (void *) &cmap) < 0) {
+ fprintf(stderr, "ioctl(FBIOPUTCMAP) failed [%d]\n", i);
+ }
+ }
+
+ /*
+ * fbdev says the frame buffer is at offset zero, and the mmio region
+ * is immediately after.
+ */
+
+ /* mmap the framebuffer into our address space */
+ FrameBuffer = (caddr_t) mmap(0, /* start */
+ FixedInfo.smem_len, /* bytes */
+ PROT_READ | PROT_WRITE, /* prot */
+ MAP_SHARED, /* flags */
+ FrameBufferFD, /* fd */
+ 0 /* offset */);
+ if (FrameBuffer == (caddr_t) - 1) {
+ fprintf(stderr, "error: unable to mmap framebuffer: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+ printf("FrameBuffer = %p\n", FrameBuffer);
+
+#if 1
+ /* mmap the MMIO region into our address space */
+ MMIOAddress = (caddr_t) mmap(0, /* start */
+ FixedInfo.mmio_len, /* bytes */
+ PROT_READ | PROT_WRITE, /* prot */
+ MAP_SHARED, /* flags */
+ FrameBufferFD, /* fd */
+ FixedInfo.smem_len /* offset */);
+ if (MMIOAddress == (caddr_t) - 1) {
+ fprintf(stderr, "error: unable to mmap mmio region: %s\n",
+ strerror(errno));
+ }
+ printf("MMIOAddress = %p\n", MMIOAddress);
+
+ /* try out some simple MMIO register reads */
+ if (1)
+ {
+ typedef unsigned int CARD32;
+ typedef unsigned char CARD8;
+#define RADEON_CONFIG_MEMSIZE 0x00f8
+#define RADEON_MEM_SDRAM_MODE_REG 0x0158
+#define MMIO_IN32(base, offset) \
+ *(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset))
+#define INREG(addr) MMIO_IN32(MMIOAddress, addr)
+ int sz, type;
+ const char *typeStr[] = {"SDR", "DDR", "64-bit SDR"};
+ sz = INREG(RADEON_CONFIG_MEMSIZE);
+ type = INREG(RADEON_MEM_SDRAM_MODE_REG);
+ printf("RADEON_CONFIG_MEMSIZE = %d (%d MB)\n", sz, sz / 1024 / 1024);
+ printf("RADEON_MEM_SDRAM_MODE_REG >> 30 = %d (%s)\n",
+ type >> 30, typeStr[type>>30]);
+ }
+#endif
+
+}
+
+
+static void
+shutdown_fbdev( void )
+{
+ struct vt_mode VT;
+
+ printf("cleaning up...\n");
+ /* restore original variable screen info */
+ if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &OrigVarInfo)) {
+ fprintf(stderr, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ munmap(MMIOAddress, FixedInfo.mmio_len);
+ munmap(FrameBuffer, FixedInfo.smem_len);
+ close(FrameBufferFD);
+
+ /* restore text mode */
+ ioctl(ConsoleFD, KDSETMODE, KD_TEXT);
+
+ /* set vt */
+ if (ioctl(ConsoleFD, VT_GETMODE, &VT) != -1) {
+ VT.mode = VT_AUTO;
+ ioctl(ConsoleFD, VT_SETMODE, &VT);
+ }
+
+ /* restore original vt */
+ if (OriginalVT >= 0) {
+ ioctl(ConsoleFD, VT_ACTIVATE, OriginalVT);
+ OriginalVT = -1;
+ }
+
+ close(ConsoleFD);
+}
+
+
+/* Borrowed from GLUT */
+static void
+doughnut(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+ int i, j;
+ GLfloat theta, phi, theta1;
+ GLfloat cosTheta, sinTheta;
+ GLfloat cosTheta1, sinTheta1;
+ GLfloat ringDelta, sideDelta;
+
+ ringDelta = 2.0 * M_PI / rings;
+ sideDelta = 2.0 * M_PI / nsides;
+
+ theta = 0.0;
+ cosTheta = 1.0;
+ sinTheta = 0.0;
+ for (i = rings - 1; i >= 0; i--) {
+ theta1 = theta + ringDelta;
+ cosTheta1 = cos(theta1);
+ sinTheta1 = sin(theta1);
+ glBegin(GL_QUAD_STRIP);
+ phi = 0.0;
+ for (j = nsides; j >= 0; j--) {
+ GLfloat cosPhi, sinPhi, dist;
+
+ phi += sideDelta;
+ cosPhi = cos(phi);
+ sinPhi = sin(phi);
+ dist = R + r * cosPhi;
+
+ glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+ glVertex3f(cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+ glNormal3f(cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+ glVertex3f(cosTheta * dist, -sinTheta * dist, r * sinPhi);
+ }
+ glEnd();
+ theta = theta1;
+ cosTheta = cosTheta1;
+ sinTheta = sinTheta1;
+ }
+}
+
+
+static void
+gltest( void )
+{
+ static const int attribs[] = {
+ GLFBDEV_DOUBLE_BUFFER,
+ GLFBDEV_DEPTH_SIZE, 16,
+ GLFBDEV_NONE
+ };
+ GLFBDevContextPtr ctx;
+ GLFBDevBufferPtr buf;
+ GLFBDevVisualPtr vis;
+ int bytes, r, g, b, a;
+ float ang;
+
+ printf("GLFBDEV_VENDOR = %s\n", glFBDevGetString(GLFBDEV_VENDOR));
+ printf("GLFBDEV_VERSION = %s\n", glFBDevGetString(GLFBDEV_VERSION));
+
+ /* framebuffer size */
+ bytes = VarInfo.xres_virtual * VarInfo.yres_virtual * VarInfo.bits_per_pixel / 8;
+
+ vis = glFBDevCreateVisual( &FixedInfo, &VarInfo, attribs );
+ assert(vis);
+
+ buf = glFBDevCreateBuffer( &FixedInfo, &VarInfo, vis, FrameBuffer, NULL, bytes );
+ assert(buf);
+
+ ctx = glFBDevCreateContext( vis, NULL );
+ assert(buf);
+
+ b = glFBDevMakeCurrent( ctx, buf, buf );
+ assert(b);
+
+ /*printf("GL_EXTENSIONS: %s\n", glGetString(GL_EXTENSIONS));*/
+ glGetIntegerv(GL_RED_BITS, &r);
+ glGetIntegerv(GL_GREEN_BITS, &g);
+ glGetIntegerv(GL_BLUE_BITS, &b);
+ glGetIntegerv(GL_ALPHA_BITS, &a);
+ printf("RED_BITS=%d GREEN_BITS=%d BLUE_BITS=%d ALPHA_BITS=%d\n",
+ r, g, b, a);
+
+ glClearColor(0.5, 0.5, 1.0, 0);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1, 1, -1, 1, 2, 30);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0, 0, -15);
+ glViewport(0, 0, VarInfo.xres_virtual, VarInfo.yres_virtual);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+
+ for (ang = 0; ang <= 180; ang += 15) {
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glPushMatrix();
+ glRotatef(ang, 1, 0, 0);
+ doughnut(1, 3, 40, 20);
+ glPopMatrix();
+ glFBDevSwapBuffers(buf);
+ }
+
+ /* clean up */
+ b = glFBDevMakeCurrent( NULL, NULL, NULL);
+ assert(b);
+
+ glFBDevDestroyContext(ctx);
+ glFBDevDestroyBuffer(buf);
+ glFBDevDestroyVisual(vis);
+}
+
+
+int
+main( int argc, char *argv[] )
+{
+ signal(SIGUSR1, signal_handler); /* exit if someone tries a vt switch */
+ signal(SIGSEGV, signal_handler); /* catch segfaults */
+
+ initialize_fbdev();
+ gltest();
+ shutdown_fbdev();
+
+ return 0;
+}
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 5.1
+ *
+ * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * OpenGL (Mesa) interface for fbdev.
+ * For info about fbdev:
+ * http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html
+ *
+ * known VGA modes
+ * Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
+ * --------+--------------------------------------------------------------
+ * 4 bits | ? ? 0x302 ? ? ? ?
+ * 8 bits | 0x300 0x301 0x303 0x305 0x161 0x307 0x31C
+ * 15 bits | ? 0x310 0x313 0x316 0x162 0x319 0x31D
+ * 16 bits | ? 0x311 0x314 0x317 0x163 0x31A 0x31E
+ * 24 bits | ? 0x312 0x315 0x318 ? 0x31B 0x31F
+ * 32 bits | ? ? ? ? 0x164 ?
+ */
+
+
+#ifdef USE_GLFBDEV_DRIVER
+
+#include "glheader.h"
+#include <linux/fb.h>
+#include "GL/glfbdev.h"
+#include "context.h"
+#include "extensions.h"
+#include "imports.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texstore.h"
+#include "array_cache/acache.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+
+#define PF_B8G8R8 1
+#define PF_B8G8R8A8 2
+#define PF_B5G6R5 3
+#define PF_B5G5R5 4
+#define PF_CI8 5
+
+
+/*
+ * Derived from Mesa's GLvisual class.
+ */
+struct GLFBDevVisualRec {
+ GLvisual glvisual; /* base class */
+ struct fb_fix_screeninfo fix;
+ struct fb_var_screeninfo var;
+ int pixelFormat;
+};
+
+/*
+ * Derived from Mesa's GLframebuffer class.
+ */
+struct GLFBDevBufferRec {
+ GLframebuffer glframebuffer; /* base class */
+ GLFBDevVisualPtr visual;
+ struct fb_fix_screeninfo fix;
+ struct fb_var_screeninfo var;
+ void *frontStart;
+ void *backStart;
+ size_t size;
+ GLuint bytesPerPixel;
+ GLuint rowStride; /* in bytes */
+ GLubyte *frontBottom; /* pointer to last row */
+ GLubyte *backBottom; /* pointer to last row */
+ GLubyte *curBottom; /* = frontBottom or backBottom */
+ GLboolean mallocBackBuffer;
+};
+
+/*
+ * Derived from Mesa's GLcontext class.
+ */
+struct GLFBDevContextRec {
+ GLcontext glcontext; /* base class */
+ GLFBDevVisualPtr visual;
+ GLFBDevBufferPtr drawBuffer;
+ GLFBDevBufferPtr readBuffer;
+ GLFBDevBufferPtr curBuffer;
+};
+
+
+
+#define GLFBDEV_CONTEXT(CTX) ((GLFBDevContextPtr) (CTX))
+#define GLFBDEV_BUFFER(BUF) ((GLFBDevBufferPtr) (BUF))
+
+
+/**********************************************************************/
+/* Internal device driver functions */
+/**********************************************************************/
+
+
+static const GLubyte *
+get_string(GLcontext *ctx, GLenum pname)
+{
+ (void) ctx;
+ switch (pname) {
+ case GL_RENDERER:
+ return (const GLubyte *) "Mesa glfbdev";
+ default:
+ return NULL;
+ }
+}
+
+
+static void
+update_state( GLcontext *ctx, GLuint new_state )
+{
+ /* not much to do here - pass it on */
+ _swrast_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+}
+
+
+static void
+get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
+{
+ const GLFBDevBufferPtr fbdevbuffer = (GLFBDevBufferPtr) buffer;
+ *width = fbdevbuffer->var.xres_virtual;
+ *height = fbdevbuffer->var.yres_virtual;
+}
+
+
+/* specifies the buffer for swrast span rendering/reading */
+static void
+set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
+{
+ GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx);
+ GLFBDevBufferPtr fbdevbuf = GLFBDEV_BUFFER(buffer);
+ fbdevctx->curBuffer = fbdevbuf;
+ switch (bufferBit) {
+ case FRONT_LEFT_BIT:
+ fbdevbuf->curBottom = fbdevbuf->frontBottom;
+ break;
+ case BACK_LEFT_BIT:
+ fbdevbuf->curBottom = fbdevbuf->backBottom;
+ break;
+ default:
+ _mesa_problem(ctx, "bad bufferBit in set_buffer()");
+ }
+}
+
+
+static void
+init_core_functions( GLcontext *ctx )
+{
+ ctx->Driver.GetString = get_string;
+ ctx->Driver.UpdateState = update_state;
+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
+ ctx->Driver.GetBufferSize = get_buffer_size;
+
+ ctx->Driver.Accum = _swrast_Accum;
+ ctx->Driver.Bitmap = _swrast_Bitmap;
+ ctx->Driver.Clear = _swrast_Clear; /* would be good to optimize */
+ ctx->Driver.CopyPixels = _swrast_CopyPixels;
+ ctx->Driver.DrawPixels = _swrast_DrawPixels;
+ ctx->Driver.ReadPixels = _swrast_ReadPixels;
+ ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
+
+ ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
+ ctx->Driver.TexImage1D = _mesa_store_teximage1d;
+ ctx->Driver.TexImage2D = _mesa_store_teximage2d;
+ ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+ ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
+ ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
+ ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
+ ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
+
+ ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
+ ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
+ ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
+ ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
+ ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
+ ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
+
+ ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
+ ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
+ ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
+ ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+ ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+ ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
+ ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
+ ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+ ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+}
+
+
+/*
+ * Generate code for span functions.
+ */
+
+/* 24-bit BGR */
+#define NAME(PREFIX) PREFIX##_B8G8R8
+#define SPAN_VARS \
+ const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
+ const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
+#define INIT_PIXEL_PTR(P, X, Y) \
+ GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 3
+#define INC_PIXEL_PTR(P) P += 3
+#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
+ P[0] = B; P[1] = G; P[2] = R
+#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
+ P[0] = B; P[1] = G; P[2] = R
+#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
+ R = P[2]; G = P[1]; B = P[0]; A = CHAN_MAX
+
+#include "swrast/s_spantemp.h"
+
+
+/* 32-bit BGRA */
+#define NAME(PREFIX) PREFIX##_B8G8R8A8
+#define SPAN_VARS \
+ const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
+ const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
+#define INIT_PIXEL_PTR(P, X, Y) \
+ GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 4
+#define INC_PIXEL_PTR(P) P += 4
+#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
+ P[0] = B; P[1] = G; P[2] = R; P[3] = 255
+#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
+ P[0] = B; P[1] = G; P[2] = R; P[3] = A
+#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
+ R = P[2]; G = P[1]; B = P[0]; A = P[3]
+
+#include "swrast/s_spantemp.h"
+
+
+/* 16-bit BGR (XXX implement dithering someday) */
+#define NAME(PREFIX) PREFIX##_B5G6R5
+#define SPAN_VARS \
+ const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
+ const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
+#define INIT_PIXEL_PTR(P, X, Y) \
+ GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
+#define INC_PIXEL_PTR(P) P += 1
+#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
+ *P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
+#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
+ *P = ( (((R) & 0xf8) << 8) | (((G) & 0xfc) << 3) | ((B) >> 3) )
+#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
+ R = ( (((*P) >> 8) & 0xf8) | (((*P) >> 11) & 0x7) ); \
+ G = ( (((*P) >> 3) & 0xfc) | (((*P) >> 5) & 0x3) ); \
+ B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
+ A = CHAN_MAX
+
+#include "swrast/s_spantemp.h"
+
+
+/* 15-bit BGR (XXX implement dithering someday) */
+#define NAME(PREFIX) PREFIX##_B5G5R5
+#define SPAN_VARS \
+ const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
+ const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
+#define INIT_PIXEL_PTR(P, X, Y) \
+ GLushort *P = (GLushort *) (fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X) * 2)
+#define INC_PIXEL_PTR(P) P += 1
+#define STORE_RGB_PIXEL(P, X, Y, R, G, B) \
+ *P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
+#define STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) \
+ *P = ( (((R) & 0xf8) << 7) | (((G) & 0xf8) << 2) | ((B) >> 3) )
+#define FETCH_RGBA_PIXEL(R, G, B, A, P) \
+ R = ( (((*P) >> 7) & 0xf8) | (((*P) >> 10) & 0x7) ); \
+ G = ( (((*P) >> 2) & 0xf8) | (((*P) >> 5) & 0x7) ); \
+ B = ( (((*P) << 3) & 0xf8) | (((*P) ) & 0x7) ); \
+ A = CHAN_MAX
+
+#include "swrast/s_spantemp.h"
+
+
+/* 8-bit color index */
+#define NAME(PREFIX) PREFIX##_CI8
+#define SPAN_VARS \
+ const GLFBDevContextPtr fbdevctx = GLFBDEV_CONTEXT(ctx); \
+ const GLFBDevBufferPtr fbdevbuf = fbdevctx->curBuffer;
+#define INIT_PIXEL_PTR(P, X, Y) \
+ GLubyte *P = fbdevbuf->curBottom - (Y) * fbdevbuf->rowStride + (X)
+#define INC_PIXEL_PTR(P) P += 1
+#define STORE_CI_PIXEL(P, CI) \
+ P[0] = CI
+#define FETCH_CI_PIXEL(CI, P) \
+ CI = P[0]
+
+#include "swrast/s_spantemp.h"
+
+/**********************************************************************/
+/* Public API functions */
+/**********************************************************************/
+
+
+const char *
+glFBDevGetString( int str )
+{
+ switch (str) {
+ case GLFBDEV_VENDOR:
+ return "Mesa Project";
+ case GLFBDEV_VERSION:
+ return "1.0.0";
+ default:
+ return NULL;
+ }
+}
+
+
+const void *
+glFBDevGetProcAddress( const char *procName )
+{
+ struct name_address {
+ const char *name;
+ const void *func;
+ };
+ static const struct name_address functions[] = {
+ { "glFBDevGetString", (void *) glFBDevGetString },
+ { "glFBDevGetProcAddress", (void *) glFBDevGetProcAddress },
+ { "glFBDevCreateVisual", (void *) glFBDevCreateVisual },
+ { "glFBDevDestroyVisual", (void *) glFBDevDestroyVisual },
+ { "glFBDevGetVisualAttrib", (void *) glFBDevGetVisualAttrib },
+ { "glFBDevCreateBuffer", (void *) glFBDevCreateBuffer },
+ { "glFBDevDestroyBuffer", (void *) glFBDevDestroyBuffer },
+ { "glFBDevGetBufferAttrib", (void *) glFBDevGetBufferAttrib },
+ { "glFBDevGetCurrentDrawBuffer", (void *) glFBDevGetCurrentDrawBuffer },
+ { "glFBDevGetCurrentReadBuffer", (void *) glFBDevGetCurrentReadBuffer },
+ { "glFBDevSwapBuffers", (void *) glFBDevSwapBuffers },
+ { "glFBDevCreateContext", (void *) glFBDevCreateContext },
+ { "glFBDevDestroyContext", (void *) glFBDevDestroyContext },
+ { "glFBDevGetContextAttrib", (void *) glFBDevGetContextAttrib },
+ { "glFBDevGetCurrentContext", (void *) glFBDevGetCurrentContext },
+ { "glFBDevMakeCurrent", (void *) glFBDevMakeCurrent },
+ { NULL, NULL }
+ };
+ const struct name_address *entry;
+ for (entry = functions; entry->name; entry++) {
+ if (_mesa_strcmp(entry->name, procName) == 0) {
+ return entry->func;
+ }
+ }
+ return _glapi_get_proc_address(procName);
+}
+
+
+GLFBDevVisualPtr
+glFBDevCreateVisual( const struct fb_fix_screeninfo *fixInfo,
+ const struct fb_var_screeninfo *varInfo,
+ const int *attribs )
+{
+ GLFBDevVisualPtr vis;
+ const int *attrib;
+ GLboolean rgbFlag = GL_TRUE, dbFlag = GL_FALSE, stereoFlag = GL_FALSE;
+ GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits = 0;
+ GLint indexBits = 0, depthBits = 0, stencilBits = 0;
+ GLint accumRedBits = 0, accumGreenBits = 0;
+ GLint accumBlueBits = 0, accumAlphaBits = 0;
+ GLint numSamples = 0;
+
+ ASSERT(fixInfo);
+ ASSERT(varInfo);
+
+ vis = CALLOC_STRUCT(GLFBDevVisualRec);
+ if (!vis)
+ return NULL;
+
+ vis->fix = *fixInfo; /* struct assignment */
+ vis->var = *varInfo; /* struct assignment */
+
+ for (attrib = attribs; attrib && *attrib != GLFBDEV_NONE; attrib++) {
+ switch (*attrib) {
+ case GLFBDEV_DOUBLE_BUFFER:
+ dbFlag = GL_TRUE;
+ break;
+ case GLFBDEV_COLOR_INDEX:
+ rgbFlag = GL_FALSE;
+ break;
+ case GLFBDEV_DEPTH_SIZE:
+ depthBits = attrib[1];
+ attrib++;
+ break;
+ case GLFBDEV_STENCIL_SIZE:
+ stencilBits = attrib[1];
+ attrib++;
+ break;
+ case GLFBDEV_ACCUM_SIZE:
+ accumRedBits = accumGreenBits = accumBlueBits = accumAlphaBits
+ = attrib[1];
+ attrib++;
+ break;
+ case GLFBDEV_LEVEL:
+ /* ignored for now */
+ break;
+ default:
+ /* unexpected token */
+ _mesa_free(vis);
+ return NULL;
+ }
+ }
+
+ if (rgbFlag) {
+ redBits = varInfo->red.length;
+ greenBits = varInfo->green.length;
+ blueBits = varInfo->blue.length;
+ alphaBits = varInfo->transp.length;
+
+ if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
+ fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
+ && varInfo->bits_per_pixel == 24
+ && varInfo->red.offset == 16
+ && varInfo->green.offset == 8
+ && varInfo->blue.offset == 0) {
+ vis->pixelFormat = PF_B8G8R8;
+ }
+ else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
+ fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
+ && varInfo->bits_per_pixel == 32
+ && varInfo->red.offset == 16
+ && varInfo->green.offset == 8
+ && varInfo->blue.offset == 0
+ && varInfo->transp.offset == 24) {
+ vis->pixelFormat = PF_B8G8R8A8;
+ }
+ else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
+ fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
+ && varInfo->bits_per_pixel == 16
+ && varInfo->red.offset == 11
+ && varInfo->green.offset == 5
+ && varInfo->blue.offset == 0) {
+ vis->pixelFormat = PF_B5G6R5;
+ }
+ else if ((fixInfo->visual == FB_VISUAL_TRUECOLOR ||
+ fixInfo->visual == FB_VISUAL_DIRECTCOLOR)
+ && varInfo->bits_per_pixel == 16
+ && varInfo->red.offset == 10
+ && varInfo->green.offset == 5
+ && varInfo->blue.offset == 0) {
+ vis->pixelFormat = PF_B5G5R5;
+ }
+ else {
+ _mesa_problem(NULL, "Unsupported fbdev RGB visual/bitdepth!\n");
+ /*
+ printf("fixInfo->visual = 0x%x\n", fixInfo->visual);
+ printf("varInfo->bits_per_pixel = %d\n", varInfo->bits_per_pixel);
+ printf("varInfo->red.offset = %d\n", varInfo->red.offset);
+ printf("varInfo->green.offset = %d\n", varInfo->green.offset);
+ printf("varInfo->blue.offset = %d\n", varInfo->blue.offset);
+ */
+ _mesa_free(vis);
+ return NULL;
+ }
+ }
+ else {
+ indexBits = varInfo->bits_per_pixel;
+ if ((fixInfo->visual == FB_VISUAL_PSEUDOCOLOR ||
+ fixInfo->visual == FB_VISUAL_STATIC_PSEUDOCOLOR)
+ && varInfo->bits_per_pixel == 8) {
+ vis->pixelFormat = PF_CI8;
+ }
+ else {
+ _mesa_problem(NULL, "Unsupported fbdev CI visual/bitdepth!\n");
+ _mesa_free(vis);
+ return NULL;
+ }
+ }
+
+ if (!_mesa_initialize_visual(&vis->glvisual, rgbFlag, dbFlag, stereoFlag,
+ redBits, greenBits, blueBits, alphaBits,
+ indexBits, depthBits, stencilBits,
+ accumRedBits, accumGreenBits,
+ accumBlueBits, accumAlphaBits,
+ numSamples)) {
+ /* something was invalid */
+ _mesa_free(vis);
+ return NULL;
+ }
+
+ return vis;
+}
+
+
+void
+glFBDevDestroyVisual( GLFBDevVisualPtr visual )
+{
+ if (visual)
+ _mesa_free(visual);
+}
+
+
+int
+glFBDevGetVisualAttrib( const GLFBDevVisualPtr visual, int attrib)
+{
+ (void) visual;
+ (void) attrib;
+ return -1;
+}
+
+
+
+GLFBDevBufferPtr
+glFBDevCreateBuffer( const struct fb_fix_screeninfo *fixInfo,
+ const struct fb_var_screeninfo *varInfo,
+ const GLFBDevVisualPtr visual,
+ void *frontBuffer, void *backBuffer, size_t size )
+{
+ GLFBDevBufferPtr buf;
+
+ ASSERT(visual);
+ ASSERT(frontBuffer);
+ ASSERT(size > 0);
+
+ if (visual->fix.visual != fixInfo->visual ||
+ visual->fix.type != fixInfo->type ||
+ visual->var.bits_per_pixel != varInfo->bits_per_pixel ||
+ visual->var.grayscale != varInfo->grayscale ||
+ visual->var.red.offset != varInfo->red.offset ||
+ visual->var.green.offset != varInfo->green.offset ||
+ visual->var.blue.offset != varInfo->blue.offset ||
+ visual->var.transp.offset != varInfo->transp.offset) {
+ /* visual mismatch! */
+ return NULL;
+ }
+
+ buf = CALLOC_STRUCT(GLFBDevBufferRec);
+ if (!buf)
+ return NULL;
+
+ _mesa_initialize_framebuffer(&buf->glframebuffer, &visual->glvisual,
+ visual->glvisual.haveDepthBuffer,
+ visual->glvisual.haveStencilBuffer,
+ visual->glvisual.haveAccumBuffer,
+ GL_FALSE);
+
+ buf->fix = *fixInfo; /* struct assignment */
+ buf->var = *varInfo; /* struct assignment */
+ buf->visual = visual; /* ptr assignment */
+ buf->frontStart = frontBuffer;
+ buf->size = size;
+ buf->bytesPerPixel = visual->var.bits_per_pixel / 8;
+ buf->rowStride = visual->var.xres_virtual * buf->bytesPerPixel;
+ buf->frontBottom = (GLubyte *) buf->frontStart
+ + (visual->var.yres_virtual - 1) * buf->rowStride;
+
+ if (visual->glvisual.doubleBufferMode) {
+ if (backBuffer) {
+ buf->backStart = backBuffer;
+ buf->mallocBackBuffer = GL_FALSE;
+ }
+ else {
+ buf->backStart = _mesa_malloc(size);
+ if (!buf->backStart) {
+ _mesa_free_framebuffer_data(&buf->glframebuffer);
+ _mesa_free(buf);
+ return NULL;
+ }
+ buf->mallocBackBuffer = GL_TRUE;
+ }
+ buf->backBottom = (GLubyte *) buf->backStart
+ + (visual->var.yres_virtual - 1) * buf->rowStride;
+ buf->curBottom = buf->backBottom;
+ }
+ else {
+ buf->backStart = NULL;
+ buf->mallocBackBuffer = GL_FALSE;
+ buf->backBottom = NULL;
+ buf->curBottom = buf->frontBottom;
+ }
+
+ return buf;
+}
+
+
+void
+glFBDevDestroyBuffer( GLFBDevBufferPtr buffer )
+{
+ if (buffer) {
+ /* check if destroying the current buffer */
+ GLFBDevBufferPtr curDraw = glFBDevGetCurrentDrawBuffer();
+ GLFBDevBufferPtr curRead = glFBDevGetCurrentReadBuffer();
+ if (buffer == curDraw || buffer == curRead) {
+ glFBDevMakeCurrent( NULL, NULL, NULL);
+ }
+ if (buffer->mallocBackBuffer) {
+ _mesa_free(buffer->backStart);
+ }
+ /* free the software depth, stencil, accum buffers */
+ _mesa_free_framebuffer_data(&buffer->glframebuffer);
+ _mesa_free(buffer);
+ }
+}
+
+
+int
+glFBDevGetBufferAttrib( const GLFBDevBufferPtr buffer, int attrib)
+{
+ (void) buffer;
+ (void) attrib;
+ return -1;
+}
+
+
+GLFBDevBufferPtr
+glFBDevGetCurrentDrawBuffer( void )
+{
+ GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
+ if (fbdevctx)
+ return fbdevctx->drawBuffer;
+ else
+ return NULL;
+}
+
+
+GLFBDevBufferPtr
+glFBDevGetCurrentReadBuffer( void )
+{
+ GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
+ if (fbdevctx)
+ return fbdevctx->readBuffer;
+ else
+ return NULL;
+}
+
+
+void
+glFBDevSwapBuffers( GLFBDevBufferPtr buffer )
+{
+ GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
+
+ if (!buffer || !buffer->visual->glvisual.doubleBufferMode)
+ return;
+
+ /* check if swapping currently bound buffer */
+ if (fbdevctx->drawBuffer == buffer) {
+ /* flush pending rendering */
+ _mesa_notifySwapBuffers(&fbdevctx->glcontext);
+ }
+
+ ASSERT(buffer->frontStart);
+ ASSERT(buffer->backStart);
+ _mesa_memcpy(buffer->frontStart, buffer->backStart, buffer->size);
+}
+
+
+GLFBDevContextPtr
+glFBDevCreateContext( const GLFBDevVisualPtr visual, GLFBDevContextPtr share )
+{
+ GLFBDevContextPtr ctx;
+ GLcontext *glctx;
+
+ ASSERT(visual);
+
+ ctx = CALLOC_STRUCT(GLFBDevContextRec);
+ if (!ctx)
+ return NULL;
+
+ if (!_mesa_initialize_context(&ctx->glcontext, &visual->glvisual,
+ share ? &share->glcontext : NULL,
+ (void *) ctx, GL_FALSE)) {
+ _mesa_free(ctx);
+ return NULL;
+ }
+
+ ctx->visual = visual;
+
+ /* Create module contexts */
+ glctx = (GLcontext *) &ctx->glcontext;
+ init_core_functions( glctx );
+ _swrast_CreateContext( glctx );
+ _ac_CreateContext( glctx );
+ _tnl_CreateContext( glctx );
+ _swsetup_CreateContext( glctx );
+ _swsetup_Wakeup( glctx );
+
+ /* swrast init */
+ {
+ struct swrast_device_driver *swdd;
+ swdd = _swrast_GetDeviceDriverReference( glctx );
+ swdd->SetBuffer = set_buffer;
+ if (visual->pixelFormat == PF_B8G8R8) {
+ swdd->WriteRGBASpan = write_rgba_span_B8G8R8;
+ swdd->WriteRGBSpan = write_rgb_span_B8G8R8;
+ swdd->WriteMonoRGBASpan = write_monorgba_span_B8G8R8;
+ swdd->WriteRGBAPixels = write_rgba_pixels_B8G8R8;
+ swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B8G8R8;
+ swdd->ReadRGBASpan = read_rgba_span_B8G8R8;
+ swdd->ReadRGBAPixels = read_rgba_pixels_B8G8R8;
+ }
+ else if (visual->pixelFormat == PF_B8G8R8A8) {
+ swdd->WriteRGBASpan = write_rgba_span_B8G8R8A8;
+ swdd->WriteRGBSpan = write_rgb_span_B8G8R8A8;
+ swdd->WriteMonoRGBASpan = write_monorgba_span_B8G8R8A8;
+ swdd->WriteRGBAPixels = write_rgba_pixels_B8G8R8A8;
+ swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B8G8R8A8;
+ swdd->ReadRGBASpan = read_rgba_span_B8G8R8A8;
+ swdd->ReadRGBAPixels = read_rgba_pixels_B8G8R8A8;
+ }
+ else if (visual->pixelFormat == PF_B5G6R5) {
+ swdd->WriteRGBASpan = write_rgba_span_B5G6R5;
+ swdd->WriteRGBSpan = write_rgb_span_B5G6R5;
+ swdd->WriteMonoRGBASpan = write_monorgba_span_B5G6R5;
+ swdd->WriteRGBAPixels = write_rgba_pixels_B5G6R5;
+ swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B5G6R5;
+ swdd->ReadRGBASpan = read_rgba_span_B5G6R5;
+ swdd->ReadRGBAPixels = read_rgba_pixels_B5G6R5;
+ }
+ else if (visual->pixelFormat == PF_B5G5R5) {
+ swdd->WriteRGBASpan = write_rgba_span_B5G5R5;
+ swdd->WriteRGBSpan = write_rgb_span_B5G5R5;
+ swdd->WriteMonoRGBASpan = write_monorgba_span_B5G5R5;
+ swdd->WriteRGBAPixels = write_rgba_pixels_B5G5R5;
+ swdd->WriteMonoRGBAPixels = write_monorgba_pixels_B5G5R5;
+ swdd->ReadRGBASpan = read_rgba_span_B5G5R5;
+ swdd->ReadRGBAPixels = read_rgba_pixels_B5G5R5;
+ }
+ else if (visual->pixelFormat == PF_CI8) {
+ swdd->WriteCI32Span = write_index32_span_CI8;
+ swdd->WriteCI8Span = write_index8_span_CI8;
+ swdd->WriteMonoCISpan = write_monoindex_span_CI8;
+ swdd->WriteCI32Pixels = write_index_pixels_CI8;
+ swdd->WriteMonoCIPixels = write_monoindex_pixels_CI8;
+ swdd->ReadCI32Span = read_index_span_CI8;
+ swdd->ReadCI32Pixels = read_index_pixels_CI8;
+ }
+ else {
+ _mesa_printf("bad pixelformat: %d\n", visual->pixelFormat);
+ }
+ }
+
+ /* use default TCL pipeline */
+ {
+ TNLcontext *tnl = TNL_CONTEXT(glctx);
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+ }
+
+ _mesa_enable_sw_extensions(glctx);
+
+ return ctx;
+}
+
+
+void
+glFBDevDestroyContext( GLFBDevContextPtr context )
+{
+ GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
+
+ if (context) {
+ if (fbdevctx == context) {
+ /* destroying current context */
+ _mesa_make_current2(NULL, NULL, NULL);
+ _mesa_notifyDestroy(&context->glcontext);
+ }
+ _mesa_free_context_data(&context->glcontext);
+ _mesa_free(context);
+ }
+}
+
+
+int
+glFBDevGetContextAttrib( const GLFBDevContextPtr context, int attrib)
+{
+ (void) context;
+ (void) attrib;
+ return -1;
+}
+
+
+GLFBDevContextPtr
+glFBDevGetCurrentContext( void )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ return (GLFBDevContextPtr) ctx;
+}
+
+
+int
+glFBDevMakeCurrent( GLFBDevContextPtr context,
+ GLFBDevBufferPtr drawBuffer,
+ GLFBDevBufferPtr readBuffer )
+{
+ if (context && drawBuffer && readBuffer) {
+ /* Make sure the context's visual and the buffers' visuals match.
+ * XXX we might do this by comparing specific fields like bits_per_pixel,
+ * visual, etc. in the future.
+ */
+ if (context->visual != drawBuffer->visual ||
+ context->visual != readBuffer->visual) {
+ return 0;
+ }
+ _mesa_make_current2( &context->glcontext,
+ &drawBuffer->glframebuffer,
+ &readBuffer->glframebuffer );
+ context->drawBuffer = drawBuffer;
+ context->readBuffer = readBuffer;
+ context->curBuffer = drawBuffer;
+ }
+ else {
+ /* unbind */
+ _mesa_make_current2( NULL, NULL, NULL );
+ }
+
+ return 1;
+}
+
+#endif /* USE_GLFBDEV_DRIVER */
+
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