intel_screen.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/**************************************************************************
 * 
 * Copyright 2003 Tungsten Graphics, 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 TUNGSTEN GRAPHICS 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.
 * 
 **************************************************************************/

#include "glheader.h"
#include "context.h"
#include "framebuffer.h"
#include "matrix.h"
#include "renderbuffer.h"
#include "simple_list.h"
#include "utils.h"
#include "vblank.h"
#include "xmlpool.h"


#include "intel_screen.h"

#include "intel_buffers.h"
#include "intel_tex.h"
#include "intel_span.h"
#include "intel_ioctl.h"
#include "intel_fbo.h"
#include "intel_chipset.h"

#include "i915_drm.h"
#include "i830_dri.h"
#include "intel_regions.h"
#include "intel_batchbuffer.h"
#include "intel_bufmgr_ttm.h"

PUBLIC const char __driConfigOptions[] =
   DRI_CONF_BEGIN
   DRI_CONF_SECTION_PERFORMANCE
      DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
      DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
      /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
       * DRI_CONF_BO_REUSE_ALL
       */
      DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 0, "0:1")
	 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
	    DRI_CONF_ENUM(0, "Disable buffer object reuse")
	    DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
	 DRI_CONF_DESC_END
      DRI_CONF_OPT_END
   DRI_CONF_SECTION_END
   DRI_CONF_SECTION_QUALITY
      DRI_CONF_FORCE_S3TC_ENABLE(false)
      DRI_CONF_ALLOW_LARGE_TEXTURES(2)
   DRI_CONF_SECTION_END
   DRI_CONF_SECTION_DEBUG
     DRI_CONF_NO_RAST(false)
   DRI_CONF_SECTION_END
DRI_CONF_END;

const GLuint __driNConfigOptions = 6;

#ifdef USE_NEW_INTERFACE
static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
#endif /*USE_NEW_INTERFACE */

/**
 * Map all the memory regions described by the screen.
 * \return GL_TRUE if success, GL_FALSE if error.
 */
GLboolean
intelMapScreenRegions(__DRIscreenPrivate * sPriv)
{
   intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;

   if (intelScreen->front.handle) {
      if (drmMap(sPriv->fd,
                 intelScreen->front.handle,
                 intelScreen->front.size,
                 (drmAddress *) & intelScreen->front.map) != 0) {
         _mesa_problem(NULL, "drmMap(frontbuffer) failed!");
         return GL_FALSE;
      }
   }
   else {
      _mesa_warning(NULL, "no front buffer handle in intelMapScreenRegions!");
   }

   if (0)
      _mesa_printf("Back 0x%08x ", intelScreen->back.handle);
   if (drmMap(sPriv->fd,
              intelScreen->back.handle,
              intelScreen->back.size,
              (drmAddress *) & intelScreen->back.map) != 0) {
      intelUnmapScreenRegions(intelScreen);
      return GL_FALSE;
   }

   if (intelScreen->third.handle) {
      if (0)
	 _mesa_printf("Third 0x%08x ", intelScreen->third.handle);
      if (drmMap(sPriv->fd,
		 intelScreen->third.handle,
		 intelScreen->third.size,
		 (drmAddress *) & intelScreen->third.map) != 0) {
	 intelUnmapScreenRegions(intelScreen);
	 return GL_FALSE;
      }
   }

   if (0)
      _mesa_printf("Depth 0x%08x ", intelScreen->depth.handle);
   if (drmMap(sPriv->fd,
              intelScreen->depth.handle,
              intelScreen->depth.size,
              (drmAddress *) & intelScreen->depth.map) != 0) {
      intelUnmapScreenRegions(intelScreen);
      return GL_FALSE;
   }

   if (0)
      _mesa_printf("TEX 0x%08x ", intelScreen->tex.handle);
   if (intelScreen->tex.size != 0) {
      if (drmMap(sPriv->fd,
		 intelScreen->tex.handle,
		 intelScreen->tex.size,
		 (drmAddress *) & intelScreen->tex.map) != 0) {
	 intelUnmapScreenRegions(intelScreen);
	 return GL_FALSE;
      }
   }

   if (0)
      printf("Mappings:  front: %p  back: %p  third: %p  depth: %p  tex: %p\n",
             intelScreen->front.map,
             intelScreen->back.map, intelScreen->third.map,
             intelScreen->depth.map, intelScreen->tex.map);
   return GL_TRUE;
}

void
intelUnmapScreenRegions(intelScreenPrivate * intelScreen)
{
#define REALLY_UNMAP 1
   if (intelScreen->front.map) {
#if REALLY_UNMAP
      if (drmUnmap(intelScreen->front.map, intelScreen->front.size) != 0)
         printf("drmUnmap front failed!\n");
#endif
      intelScreen->front.map = NULL;
   }
   if (intelScreen->back.map) {
#if REALLY_UNMAP
      if (drmUnmap(intelScreen->back.map, intelScreen->back.size) != 0)
         printf("drmUnmap back failed!\n");
#endif
      intelScreen->back.map = NULL;
   }
   if (intelScreen->third.map) {
#if REALLY_UNMAP
      if (drmUnmap(intelScreen->third.map, intelScreen->third.size) != 0)
         printf("drmUnmap third failed!\n");
#endif
      intelScreen->third.map = NULL;
   }
   if (intelScreen->depth.map) {
#if REALLY_UNMAP
      drmUnmap(intelScreen->depth.map, intelScreen->depth.size);
      intelScreen->depth.map = NULL;
#endif
   }
   if (intelScreen->tex.map) {
#if REALLY_UNMAP
      drmUnmap(intelScreen->tex.map, intelScreen->tex.size);
      intelScreen->tex.map = NULL;
#endif
   }
}


static void
intelPrintDRIInfo(intelScreenPrivate * intelScreen,
                  __DRIscreenPrivate * sPriv, I830DRIPtr gDRIPriv)
{
   fprintf(stderr, "*** Front size:   0x%x  offset: 0x%x  pitch: %d\n",
           intelScreen->front.size, intelScreen->front.offset,
           intelScreen->pitch);
   fprintf(stderr, "*** Back size:    0x%x  offset: 0x%x  pitch: %d\n",
           intelScreen->back.size, intelScreen->back.offset,
           intelScreen->pitch);
   fprintf(stderr, "*** Depth size:   0x%x  offset: 0x%x  pitch: %d\n",
           intelScreen->depth.size, intelScreen->depth.offset,
           intelScreen->pitch);
   fprintf(stderr, "*** Texture size: 0x%x  offset: 0x%x\n",
           intelScreen->tex.size, intelScreen->tex.offset);
   fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem);
}


static void
intelPrintSAREA(const struct drm_i915_sarea * sarea)
{
   fprintf(stderr, "SAREA: sarea width %d  height %d\n", sarea->width,
           sarea->height);
   fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch);
   fprintf(stderr,
           "SAREA: front offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
           sarea->front_offset, sarea->front_size,
           (unsigned) sarea->front_handle);
   fprintf(stderr,
           "SAREA: back  offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
           sarea->back_offset, sarea->back_size,
           (unsigned) sarea->back_handle);
   fprintf(stderr, "SAREA: depth offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
           sarea->depth_offset, sarea->depth_size,
           (unsigned) sarea->depth_handle);
   fprintf(stderr, "SAREA: tex   offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
           sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle);
}


/**
 * A number of the screen parameters are obtained/computed from
 * information in the SAREA.  This function updates those parameters.
 */
void
intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
                           struct drm_i915_sarea * sarea)
{
   intelScreen->width = sarea->width;
   intelScreen->height = sarea->height;
   intelScreen->pitch = sarea->pitch;

   intelScreen->front.offset = sarea->front_offset;
   intelScreen->front.handle = sarea->front_handle;
   intelScreen->front.size = sarea->front_size;
   intelScreen->front.tiled = sarea->front_tiled;

   intelScreen->back.offset = sarea->back_offset;
   intelScreen->back.handle = sarea->back_handle;
   intelScreen->back.size = sarea->back_size;
   intelScreen->back.tiled = sarea->back_tiled;

   if (intelScreen->driScrnPriv->ddx_version.minor >= 8) {
      intelScreen->third.offset = sarea->third_offset;
      intelScreen->third.handle = sarea->third_handle;
      intelScreen->third.size = sarea->third_size;
      intelScreen->third.tiled = sarea->third_tiled;
   }

   intelScreen->depth.offset = sarea->depth_offset;
   intelScreen->depth.handle = sarea->depth_handle;
   intelScreen->depth.size = sarea->depth_size;
   intelScreen->depth.tiled = sarea->depth_tiled;

   if (intelScreen->driScrnPriv->ddx_version.minor >= 9) {
      intelScreen->front.bo_handle = sarea->front_bo_handle;
      intelScreen->back.bo_handle = sarea->back_bo_handle;
      intelScreen->third.bo_handle = sarea->third_bo_handle;
      intelScreen->depth.bo_handle = sarea->depth_bo_handle;
   } else {
      intelScreen->front.bo_handle = -1;
      intelScreen->back.bo_handle = -1;
      intelScreen->third.bo_handle = -1;
      intelScreen->depth.bo_handle = -1;
   }

   intelScreen->tex.offset = sarea->tex_offset;
   intelScreen->logTextureGranularity = sarea->log_tex_granularity;
   intelScreen->tex.handle = sarea->tex_handle;
   intelScreen->tex.size = sarea->tex_size;

   if (0)
      intelPrintSAREA(sarea);
}


/**
 * DRI2 entrypoint
 */
static void
intelHandleDrawableConfig(__DRIdrawablePrivate *dPriv,
			  __DRIcontextPrivate *pcp,
			  __DRIDrawableConfigEvent *event)
{
   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
   struct intel_region *region = NULL;
   struct intel_renderbuffer *rb, *depth_rb, *stencil_rb;
   struct intel_context *intel = pcp->driverPrivate;
   int cpp, pitch;

   cpp = intel->ctx.Visual.rgbBits / 8;
   pitch = ((cpp * dPriv->w + 63) & ~63) / cpp;

   rb = intel_fb->color_rb[1];
   if (rb) {
      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
      intel_renderbuffer_set_region(rb, region);
   }

   rb = intel_fb->color_rb[2];
   if (rb) {
      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
      intel_renderbuffer_set_region(rb, region);
   }

   depth_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
   stencil_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
   if (depth_rb || stencil_rb)
      region = intel_region_alloc(intel, cpp, pitch, dPriv->h);
   if (depth_rb)
      intel_renderbuffer_set_region(depth_rb, region);
   if (stencil_rb)
      intel_renderbuffer_set_region(stencil_rb, region);

   /* FIXME: Tell the X server about the regions we just allocated and
    * attached. */
}

#define BUFFER_FLAG_TILED 0x0100

/**
 * DRI2 entrypoint
 */
static void
intelHandleBufferAttach(__DRIdrawablePrivate *dPriv,
			__DRIcontextPrivate *pcp,
			__DRIBufferAttachEvent *ba)
{
   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
   struct intel_renderbuffer *rb;
   struct intel_region *region;
   struct intel_context *intel = pcp->driverPrivate;
   GLuint tiled;

   switch (ba->buffer.attachment) {
   case DRI_DRAWABLE_BUFFER_FRONT_LEFT:
      rb = intel_fb->color_rb[0];
      break;

   case DRI_DRAWABLE_BUFFER_BACK_LEFT:
      rb = intel_fb->color_rb[0];
      break;

   case DRI_DRAWABLE_BUFFER_DEPTH:
     rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
     break;

   case DRI_DRAWABLE_BUFFER_STENCIL:
     rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
     break;

   case DRI_DRAWABLE_BUFFER_ACCUM:
   default:
      fprintf(stderr, "unhandled buffer attach event, attacment type %d\n",
	      ba->buffer.attachment);
      return;
   }

#if 0
   /* FIXME: Add this so we can filter out when the X server sends us
    * attachment events for the buffers we just allocated.  Need to
    * get the BO handle for a render buffer. */
   if (intel_renderbuffer_get_region_handle(rb) == ba->buffer.handle)
      return;
#endif

   tiled = (ba->buffer.flags & BUFFER_FLAG_TILED) > 0;
   region = intel_region_alloc_for_handle(intel, ba->buffer.cpp,
					  ba->buffer.pitch / ba->buffer.cpp,
					  dPriv->h, tiled,
					  ba->buffer.handle);

   intel_renderbuffer_set_region(rb, region);
}

static const __DRItexOffsetExtension intelTexOffsetExtension = {
   { __DRI_TEX_OFFSET },
   intelSetTexOffset,
};

static const __DRItexBufferExtension intelTexBufferExtension = {
    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
   intelSetTexBuffer,
};

static const __DRIextension *intelScreenExtensions[] = {
    &driReadDrawableExtension,
    &driCopySubBufferExtension.base,
    &driSwapControlExtension.base,
    &driFrameTrackingExtension.base,
    &driMediaStreamCounterExtension.base,
    &intelTexOffsetExtension.base,
    &intelTexBufferExtension.base,
    NULL
};

static GLboolean
intel_get_param(__DRIscreenPrivate *psp, int param, int *value)
{
   int ret;
   struct drm_i915_getparam gp;

   gp.param = param;
   gp.value = value;

   ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
   if (ret) {
      fprintf(stderr, "drm_i915_getparam: %d\n", ret);
      return GL_FALSE;
   }

   return GL_TRUE;
}

static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv)
{
   intelScreenPrivate *intelScreen;
   I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv;
   struct drm_i915_sarea *sarea;

   if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
      fprintf(stderr,
              "\nERROR!  sizeof(I830DRIRec) does not match passed size from device driver\n");
      return GL_FALSE;