add the i830 driver - no kernel driver yet

(build tested, but not physically tested)

1 files changed, 371 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i830/i830_screen.c b/src/mesa/drivers/dri/i830/i830_screen.c
new file mode 100644
index 0000000000..a1079f6f56
--- /dev/null
+++ b/src/mesa/drivers/dri/i830/i830_screen.c
@@ -0,0 +1,371 @@
+/**************************************************************************
+ * 
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
+ * 
+ * **************************************************************************/
+/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_screen.c,v 1.3 2002/12/10 01:26:53 dawes Exp $ */
+
+/*
+ * Authors:
+ *   Keith Whitwell <keith@tungstengraphics.com>
+ * Adapted for use on the I830M:
+ *   Jeff Hartmann <jhartmann@2d3d.com>
+ */
+
+
+#include "glheader.h"
+#include "context.h"
+#include "matrix.h"
+#include "simple_list.h"
+
+#include "i830_screen.h"
+#include "i830_dri.h"
+
+#include "i830_state.h"
+#include "i830_tex.h"
+#include "i830_span.h"
+#include "i830_tris.h"
+#include "i830_ioctl.h"
+
+#include "i830_dri.h"
+
+
+static int i830_malloc_proxy_buf(drmBufMapPtr buffers)
+{
+   char *buffer;
+   drmBufPtr buf;
+   int i;
+
+   buffer = Xmalloc(I830_DMA_BUF_SZ);
+   if(buffer == NULL) return -1;
+   for(i = 0; i < I830_DMA_BUF_NR; i++) {
+      buf = &(buffers->list[i]);
+      buf->address = (drmAddress)buffer;
+   }
+
+   return 0;
+}
+
+static drmBufMapPtr i830_create_empty_buffers(void)
+{
+   drmBufMapPtr retval;
+
+   retval = (drmBufMapPtr)Xmalloc(sizeof(drmBufMap));
+   if(retval == NULL) return NULL;
+   memset(retval, 0, sizeof(drmBufMap));
+   retval->list = (drmBufPtr)Xmalloc(sizeof(drmBuf) * I830_DMA_BUF_NR);
+   if(retval->list == NULL) {
+      Xfree(retval);
+      return NULL;
+   }
+
+   memset(retval->list, 0, sizeof(drmBuf) * I830_DMA_BUF_NR);
+   return retval;
+}
+
+static void i830PrintDRIInfo(i830ScreenPrivate *i830Screen,
+			     __DRIscreenPrivate *sPriv,
+			     I830DRIPtr gDRIPriv)
+{
+   GLuint size = (gDRIPriv->ringSize +
+		  i830Screen->textureSize +
+		  i830Screen->depth.size +
+		  i830Screen->back.size +
+		  sPriv->fbSize +
+		  I830_DMA_BUF_NR * I830_DMA_BUF_SZ +
+		  32768 /* Context Memory */ +
+		  16*4096 /* Ring buffer */ +
+		  64*1024 /* Scratch buffer */ +
+		  4096 /* Cursor */);
+   GLuint size_low = (gDRIPriv->ringSize +
+		      i830Screen->textureSize +
+		      sPriv->fbSize +
+		      I830_DMA_BUF_NR * I830_DMA_BUF_SZ +
+		      32768 /* Context Memory */ +
+		      16*4096 /* Ring buffer */ +
+		      64*1024 /* Scratch buffer */);
+
+   fprintf(stderr, "\nFront size : 0x%x\n", sPriv->fbSize);
+   fprintf(stderr, "Front offset : 0x%x\n", i830Screen->fbOffset);
+   fprintf(stderr, "Back size : 0x%x\n", i830Screen->back.size);
+   fprintf(stderr, "Back offset : 0x%x\n", i830Screen->backOffset);
+   fprintf(stderr, "Depth size : 0x%x\n", i830Screen->depth.size);
+   fprintf(stderr, "Depth offset : 0x%x\n", i830Screen->depthOffset);
+   fprintf(stderr, "Texture size : 0x%x\n", i830Screen->textureSize);
+   fprintf(stderr, "Texture offset : 0x%x\n", i830Screen->textureOffset);
+   fprintf(stderr, "Ring offset : 0x%x\n", gDRIPriv->ringOffset);
+   fprintf(stderr, "Ring size : 0x%x\n", gDRIPriv->ringSize);
+   fprintf(stderr, "Memory : 0x%x\n", gDRIPriv->mem);
+   fprintf(stderr, "Used Memory : low(0x%x) high(0x%x)\n", size_low, size);
+}
+
+static GLboolean i830InitDriver(__DRIscreenPrivate *sPriv)
+{
+   i830ScreenPrivate *i830Screen;
+   I830DRIPtr         gDRIPriv = (I830DRIPtr)sPriv->pDevPriv;
+
+   /* Check the DRI externsion version */
+   if ( sPriv->driMajor != 4 || sPriv->driMinor < 0 ) {
+      __driUtilMessage( "i830 DRI driver expected DRI version 4.0.x "
+                        "but got version %d.%d.%d",
+                        sPriv->driMajor, sPriv->driMinor, sPriv->driPatch );
+      return GL_FALSE;
+   }
+
+   /* Check that the DDX driver version is compatible */
+   if (sPriv->ddxMajor != 1 || sPriv->ddxMinor < 0) {
+      __driUtilMessage("i830 DRI driver expected DDX driver version 1.0.x but got version %d.%d.%d", sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch);
+      return GL_FALSE;
+   }
+		
+   /* Check that the DRM driver version is compatible */
+   if (sPriv->drmMajor != 1 || sPriv->drmMinor < 3) {
+      __driUtilMessage("i830 DRI driver expected DRM driver version 1.3.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch);
+      return GL_FALSE;
+   }
+
+   /* Allocate the private area */
+   i830Screen = (i830ScreenPrivate *)Xmalloc(sizeof(i830ScreenPrivate));
+   if (!i830Screen) {
+      fprintf(stderr,"\nERROR!  Allocating private area failed\n");
+      return GL_FALSE;
+   }
+
+   i830Screen->driScrnPriv = sPriv;
+   sPriv->private = (void *)i830Screen;
+
+   i830Screen->deviceID = gDRIPriv->deviceID;
+   i830Screen->width = gDRIPriv->width;
+   i830Screen->height = gDRIPriv->height;
+   i830Screen->mem = gDRIPriv->mem;
+   i830Screen->cpp = gDRIPriv->cpp;
+   i830Screen->fbStride = gDRIPriv->fbStride;
+   i830Screen->fbOffset = gDRIPriv->fbOffset;
+			 
+   switch (gDRIPriv->bitsPerPixel) {
+   case 15: i830Screen->fbFormat = DV_PF_555; break;
+   case 16: i830Screen->fbFormat = DV_PF_565; break;
+   case 32: i830Screen->fbFormat = DV_PF_8888; break;
+   }
+			 
+   i830Screen->backOffset = gDRIPriv->backOffset;
+   i830Screen->depthOffset = gDRIPriv->depthOffset;
+   i830Screen->backPitch = gDRIPriv->auxPitch;
+   i830Screen->backPitchBits = gDRIPriv->auxPitchBits;
+   i830Screen->textureOffset = gDRIPriv->textureOffset;
+   i830Screen->textureSize = gDRIPriv->textureSize;
+   i830Screen->logTextureGranularity = gDRIPriv->logTextureGranularity;
+			 			    			 
+
+   i830Screen->bufs = i830_create_empty_buffers();
+   if(i830Screen->bufs == NULL) {
+      fprintf(stderr,"\nERROR: Failed to create empty buffers in %s \n",
+	      __FUNCTION__);
+      Xfree(i830Screen);
+      return GL_FALSE;
+   }
+
+   /* Check if you need to create a fake buffer */
+   if(i830_check_copy(sPriv->fd) == 1) {
+      i830_malloc_proxy_buf(i830Screen->bufs);
+      i830Screen->use_copy_buf = 1;
+   } else {
+      i830Screen->use_copy_buf = 0;
+   }
+
+   i830Screen->back.handle = gDRIPriv->backbuffer;
+   i830Screen->back.size = gDRIPriv->backbufferSize;
+			 
+   if (drmMap(sPriv->fd,
+	      i830Screen->back.handle,
+	      i830Screen->back.size,
+	      (drmAddress *)&i830Screen->back.map) != 0) {
+      fprintf(stderr, "\nERROR: line %d, Function %s, File %s\n",
+	      __LINE__, __FUNCTION__, __FILE__);
+      Xfree(i830Screen);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   }
+
+   i830Screen->depth.handle = gDRIPriv->depthbuffer;
+   i830Screen->depth.size = gDRIPriv->depthbufferSize;
+
+   if (drmMap(sPriv->fd, 
+	      i830Screen->depth.handle,
+	      i830Screen->depth.size,
+	      (drmAddress *)&i830Screen->depth.map) != 0) {
+      fprintf(stderr, "\nERROR: line %d, Function %s, File %s\n", 
+	      __LINE__, __FUNCTION__, __FILE__);
+      Xfree(i830Screen);
+      drmUnmap(i830Screen->back.map, i830Screen->back.size);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   }
+
+   i830Screen->tex.handle = gDRIPriv->textures;
+   i830Screen->tex.size = gDRIPriv->textureSize;
+
+   if (drmMap(sPriv->fd,
+	      i830Screen->tex.handle,
+	      i830Screen->tex.size,
+	      (drmAddress *)&i830Screen->tex.map) != 0) {
+      fprintf(stderr, "\nERROR: line %d, Function %s, File %s\n",
+	      __LINE__, __FUNCTION__, __FILE__);
+      Xfree(i830Screen);
+      drmUnmap(i830Screen->back.map, i830Screen->back.size);
+      drmUnmap(i830Screen->depth.map, i830Screen->depth.size);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   }
+			 
+   i830Screen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
+   
+   if (0) i830PrintDRIInfo(i830Screen, sPriv, gDRIPriv);
+
+   i830Screen->drmMinor = sPriv->drmMinor;
+
+   if (sPriv->drmMinor >= 3) {
+      int ret;
+      drmI830GetParam gp;
+
+      gp.param = I830_PARAM_IRQ_ACTIVE;
+      gp.value = &i830Screen->irq_active;
+
+      ret = drmCommandWriteRead( sPriv->fd, DRM_I830_GETPARAM,
+				 &gp, sizeof(gp));
+      if (ret) {
+	 fprintf(stderr, "drmI830GetParam: %d\n", ret);
+	 return GL_FALSE;
+      }
+   }
+
+#if 0
+   if (sPriv->drmMinor >= 3) {
+      int ret;
+      drmI830SetParam sp;
+
+      sp.param = I830_SETPARAM_PERF_BOXES;
+      sp.value = (getenv("I830_DO_BOXES") != 0);
+
+      ret = drmCommandWrite( sPriv->fd, DRM_I830_SETPARAM,
+			     &sp, sizeof(sp));
+      if (ret) 
+	 fprintf(stderr, "Couldn't set perfboxes: %d\n", ret);
+   }
+#endif
+
+   return GL_TRUE;
+}
+		
+		
+static void i830DestroyScreen(__DRIscreenPrivate *sPriv)
+{
+   i830ScreenPrivate *i830Screen = (i830ScreenPrivate *)sPriv->private;
+
+   /* Need to unmap all the bufs and maps here:
+    */
+   drmUnmap(i830Screen->back.map, i830Screen->back.size);
+   drmUnmap(i830Screen->depth.map, i830Screen->depth.size);
+   drmUnmap(i830Screen->tex.map, i830Screen->tex.size);
+   Xfree(i830Screen);
+   sPriv->private = NULL;
+}
+
+static GLboolean i830CreateBuffer(__DRIscreenPrivate *driScrnPriv,
+				  __DRIdrawablePrivate *driDrawPriv,
+				  const __GLcontextModes *mesaVis,
+				  GLboolean isPixmap )
+{
+   if (isPixmap) {
+      return GL_FALSE; /* not implemented */
+   } else {
+#if 0
+      GLboolean swStencil = (mesaVis->stencilBits > 0 && 
+			     mesaVis->depthBits != 24);
+#else
+      GLboolean swStencil = mesaVis->stencilBits > 0;
+#endif
+      driDrawPriv->driverPrivate = (void *) 
+	 _mesa_create_framebuffer(mesaVis,
+				  GL_FALSE,  /* software depth buffer? */
+				  swStencil,
+				  mesaVis->accumRedBits > 0,
+				  GL_FALSE /* s/w alpha planes */);
+      
+      return (driDrawPriv->driverPrivate != NULL);
+   }
+}
+
+static void i830DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+   _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+static GLboolean i830OpenCloseFullScreen (__DRIcontextPrivate *driContextPriv)
+{
+   return GL_TRUE;  
+}
+
+static const struct __DriverAPIRec i830API = {
+   .InitDriver      = i830InitDriver,
+   .DestroyScreen   = i830DestroyScreen,
+   .CreateContext   = i830CreateContext,
+   .DestroyContext  = i830DestroyContext,
+   .CreateBuffer    = i830CreateBuffer,
+   .DestroyBuffer   = i830DestroyBuffer,
+   .SwapBuffers     = i830SwapBuffers,
+   .MakeCurrent     = i830MakeCurrent,
+   .UnbindContext   = i830UnbindContext,
+   .OpenFullScreen  = i830OpenCloseFullScreen,
+   .CloseFullScreen = i830OpenCloseFullScreen,
+   .GetSwapInfo     = NULL,
+   .GetMSC          = NULL,
+   .WaitForMSC      = NULL,
+   .WaitForSBC      = NULL,
+   .SwapBuffersMSC  = NULL
+};
+
+
+/*
+ * This is the bootstrap function for the driver.
+ * The __driCreateScreen name is the symbol that libGL.so fetches.
+ * Return:  pointer to a __DRIscreenPrivate.
+ */
+#ifndef _SOLO
+void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
+			int numConfigs, __GLXvisualConfig *config)
+{
+   __DRIscreenPrivate *psp;
+   psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &i830API);
+   return (void *) psp;
+}
+#else
+void *__driCreateScreen(struct DRIDriverRec *driver,
+                        struct DRIDriverContextRec *driverContext)
+{
+   __DRIscreenPrivate *psp;
+   psp = __driUtilCreateScreen(driver, driverContext, &i830API);
+   return (void *) psp;
+}
+#endif