Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 483 insertions, 0 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i830_texstate.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i830_texstate.c
new file mode 100644
index 000000000..ba452279b
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i830_texstate.c
@@ -0,0 +1,483 @@
+/**************************************************************************
+ * 
+ * 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 "macros.h"
+#include "mtypes.h"
+#include "simple_list.h"
+#include "enums.h"
+#include "texformat.h"
+#include "texstore.h"
+
+#include "mm.h"
+
+#include "intel_screen.h"
+#include "intel_ioctl.h"
+#include "intel_tex.h"
+
+#include "i830_context.h"
+#include "i830_reg.h"
+
+static const GLint initial_offsets[6][2] = { {0,0},
+				       {0,2},
+				       {1,0},
+				       {1,2},
+				       {1,1},
+				       {1,3} };
+
+static const GLint step_offsets[6][2] = { {0,2},
+				    {0,2},
+				    {-1,2},
+				    {-1,2},
+				    {-1,1},
+				    {-1,1} };
+
+#define I830_TEX_UNIT_ENABLED(unit)		(1<<unit)
+
+static GLboolean i830SetTexImages( i830ContextPtr i830, 
+				  struct gl_texture_object *tObj )
+{
+   GLuint total_height, pitch, i, textureFormat;
+   i830TextureObjectPtr t = (i830TextureObjectPtr) tObj->DriverData;
+   const struct gl_texture_image *baseImage = tObj->Image[0][tObj->BaseLevel];
+   GLint firstLevel, lastLevel, numLevels;
+
+   switch( baseImage->TexFormat->MesaFormat ) {
+   case MESA_FORMAT_L8:
+      t->intel.texelBytes = 1;
+      textureFormat = MAPSURF_8BIT | MT_8BIT_L8;
+      break;
+
+   case MESA_FORMAT_I8:
+      t->intel.texelBytes = 1;
+      textureFormat = MAPSURF_8BIT | MT_8BIT_I8;
+      break;
+
+   case MESA_FORMAT_A8:
+      t->intel.texelBytes = 1;
+      textureFormat = MAPSURF_8BIT | MT_8BIT_I8; /* Kludge -- check with conform, glean */
+      break;
+
+   case MESA_FORMAT_AL88:
+      t->intel.texelBytes = 2;
+      textureFormat = MAPSURF_16BIT | MT_16BIT_AY88;
+      break;
+
+   case MESA_FORMAT_RGB565:
+      t->intel.texelBytes = 2;
+      textureFormat = MAPSURF_16BIT | MT_16BIT_RGB565;
+      break;
+
+   case MESA_FORMAT_ARGB1555:
+      t->intel.texelBytes = 2;
+      textureFormat = MAPSURF_16BIT | MT_16BIT_ARGB1555;
+      break;
+
+   case MESA_FORMAT_ARGB4444:
+      t->intel.texelBytes = 2;
+      textureFormat = MAPSURF_16BIT | MT_16BIT_ARGB4444;
+      break;
+
+   case MESA_FORMAT_ARGB8888:
+      t->intel.texelBytes = 4;
+      textureFormat = MAPSURF_32BIT | MT_32BIT_ARGB8888;
+      break;
+
+   case MESA_FORMAT_YCBCR_REV:
+      t->intel.texelBytes = 2;
+      textureFormat = (MAPSURF_422 | MT_422_YCRCB_NORMAL | 
+		       TM0S1_COLORSPACE_CONVERSION);
+      break;
+
+   case MESA_FORMAT_YCBCR:
+      t->intel.texelBytes = 2;
+      textureFormat = (MAPSURF_422 | MT_422_YCRCB_SWAPY | /* ??? */
+		       TM0S1_COLORSPACE_CONVERSION);
+      break;
+
+   case MESA_FORMAT_RGB_FXT1:
+   case MESA_FORMAT_RGBA_FXT1:
+     t->intel.texelBytes = 2;
+     textureFormat = MAPSURF_COMPRESSED | MT_COMPRESS_FXT1;
+     break;
+
+   case MESA_FORMAT_RGBA_DXT1:
+   case MESA_FORMAT_RGB_DXT1:
+     /* 
+      * DXTn pitches are Width/4 * blocksize in bytes 
+      * for DXT1: blocksize=8 so Width/4*8 = Width * 2 
+      * for DXT3/5: blocksize=16 so Width/4*16 = Width * 4
+      */
+     t->intel.texelBytes = 2;
+     textureFormat = (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1);
+     break;
+   case MESA_FORMAT_RGBA_DXT3:
+     t->intel.texelBytes = 4;
+     textureFormat = (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3);
+     break;
+   case MESA_FORMAT_RGBA_DXT5:
+     t->intel.texelBytes = 4;
+     textureFormat = (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5);
+     break;
+
+   default:
+      fprintf(stderr, "%s: bad image format\n", __FUNCTION__);
+      abort();
+   }
+
+   /* Compute which mipmap levels we really want to send to the hardware.
+    * This depends on the base image size, GL_TEXTURE_MIN_LOD,
+    * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
+    * Yes, this looks overly complicated, but it's all needed.
+    */
+   driCalculateTextureFirstLastLevel( (driTextureObject *) t );
+
+
+   /* Figure out the amount of memory required to hold all the mipmap
+    * levels.  Choose the smallest pitch to accomodate the largest
+    * mipmap:
+    */
+   firstLevel = t->intel.base.firstLevel;
+   lastLevel = t->intel.base.lastLevel;
+   numLevels = lastLevel - firstLevel + 1;
+
+
+   /* All images must be loaded at this pitch.  Count the number of
+    * lines required:
+    */
+   switch (tObj->Target) {
+   case GL_TEXTURE_CUBE_MAP: {
+      const GLuint dim = tObj->Image[0][firstLevel]->Width;
+      GLuint face;
+
+      pitch = dim * t->intel.texelBytes;
+      pitch *= 2;		/* double pitch for cube layouts */
+      pitch = (pitch + 3) & ~3;
+      
+      total_height = dim * 4;
+
+      for ( face = 0 ; face < 6 ; face++) {
+	 GLuint x = initial_offsets[face][0] * dim;
+	 GLuint y = initial_offsets[face][1] * dim;
+	 GLuint d = dim;
+	 
+	 t->intel.base.dirty_images[face] = ~0;
+
+	 assert(tObj->Image[face][firstLevel]->Width == dim);
+	 assert(tObj->Image[face][firstLevel]->Height == dim);
+
+	 for (i = 0; i < numLevels; i++) {
+	    t->intel.image[face][i].image = tObj->Image[face][firstLevel + i];
+	    if (!t->intel.image[face][i].image) {
+	       fprintf(stderr, "no image %d %d\n", face, i);
+	       break;		/* can't happen */
+	    }
+	 
+	    t->intel.image[face][i].offset = 
+	       y * pitch + x * t->intel.texelBytes;
+	    t->intel.image[face][i].internalFormat = baseImage->Format;
+
+	    d >>= 1;
+	    x += step_offsets[face][0] * d;
+	    y += step_offsets[face][1] * d;
+	 }
+      }
+      break;
+   }
+   default:
+      pitch = tObj->Image[0][firstLevel]->Width * t->intel.texelBytes;
+      pitch = (pitch + 3) & ~3;
+      t->intel.base.dirty_images[0] = ~0;
+
+      for ( total_height = i = 0 ; i < numLevels ; i++ ) {
+	 t->intel.image[0][i].image = tObj->Image[0][firstLevel + i];
+	 if (!t->intel.image[0][i].image) 
+	    break;
+	 
+	 t->intel.image[0][i].offset = total_height * pitch;
+	 t->intel.image[0][i].internalFormat = baseImage->Format;
+	 if (t->intel.image[0][i].image->IsCompressed)
+	 {
+	   if (t->intel.image[0][i].image->Height > 4)
+	     total_height += t->intel.image[0][i].image->Height/4;
+	   else
+	     total_height += 1;
+	 }
+	 else
+	   total_height += MAX2(2, t->intel.image[0][i].image->Height);
+      }
+      break;
+   }
+
+   t->intel.Pitch = pitch;
+   t->intel.base.totalSize = total_height*pitch;
+   t->intel.max_level = i-1;
+   t->Setup[I830_TEXREG_TM0S1] = 
+      (((tObj->Image[0][firstLevel]->Height - 1) << TM0S1_HEIGHT_SHIFT) |
+       ((tObj->Image[0][firstLevel]->Width - 1) << TM0S1_WIDTH_SHIFT) |
+       textureFormat);
+   t->Setup[I830_TEXREG_TM0S2] = 
+      (((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) |
+      TM0S2_CUBE_FACE_ENA_MASK;
+   t->Setup[I830_TEXREG_TM0S3] &= ~TM0S3_MAX_MIP_MASK;
+   t->Setup[I830_TEXREG_TM0S3] &= ~TM0S3_MIN_MIP_MASK;
+   t->Setup[I830_TEXREG_TM0S3] |= ((numLevels - 1)*4) << TM0S3_MIN_MIP_SHIFT;
+   t->intel.dirty = I830_UPLOAD_TEX_ALL;
+
+   return intelUploadTexImages( &i830->intel, &t->intel, 0 );
+}
+
+
+static void i830_import_tex_unit( i830ContextPtr i830, 
+			   i830TextureObjectPtr t,
+			   GLuint unit )
+{
+   if(INTEL_DEBUG&DEBUG_TEXTURE)
+      fprintf(stderr, "%s unit(%d)\n", __FUNCTION__, unit);
+   
+   if (i830->intel.CurrentTexObj[unit]) 
+      i830->intel.CurrentTexObj[unit]->base.bound &= ~(1U << unit);
+
+   i830->intel.CurrentTexObj[unit] = (intelTextureObjectPtr)t;
+   t->intel.base.bound |= (1 << unit);
+
+   I830_STATECHANGE( i830, I830_UPLOAD_TEX(unit) );
+
+   i830->state.Tex[unit][I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 | 
+					       (LOAD_TEXTURE_MAP0 << unit) | 4);
+   i830->state.Tex[unit][I830_TEXREG_TM0S0] = (TM0S0_USE_FENCE |
+					       t->intel.TextureOffset);
+
+   i830->state.Tex[unit][I830_TEXREG_TM0S1] = t->Setup[I830_TEXREG_TM0S1];
+   i830->state.Tex[unit][I830_TEXREG_TM0S2] = t->Setup[I830_TEXREG_TM0S2];
+
+   i830->state.Tex[unit][I830_TEXREG_TM0S3] &= TM0S3_LOD_BIAS_MASK;
+   i830->state.Tex[unit][I830_TEXREG_TM0S3] |= (t->Setup[I830_TEXREG_TM0S3] &
+						~TM0S3_LOD_BIAS_MASK);
+
+   i830->state.Tex[unit][I830_TEXREG_TM0S4] = t->Setup[I830_TEXREG_TM0S4];
+   i830->state.Tex[unit][I830_TEXREG_MCS] = (t->Setup[I830_TEXREG_MCS] & 
+					     ~MAP_UNIT_MASK);   
+   i830->state.Tex[unit][I830_TEXREG_CUBE] = t->Setup[I830_TEXREG_CUBE];
+   i830->state.Tex[unit][I830_TEXREG_MCS] |= MAP_UNIT(unit);
+
+   t->intel.dirty &= ~I830_UPLOAD_TEX(unit);
+}
+
+
+
+static GLboolean enable_tex_common( GLcontext *ctx, GLuint unit )
+{
+   i830ContextPtr i830 = I830_CONTEXT(ctx);
+   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+   struct gl_texture_object *tObj = texUnit->_Current;
+   i830TextureObjectPtr t = (i830TextureObjectPtr)tObj->DriverData;
+
+   if (0) fprintf(stderr, "%s\n", __FUNCTION__);
+
+   /* Fallback if there's a texture border */
+   if ( tObj->Image[0][tObj->BaseLevel]->Border > 0 ) {
+      fprintf(stderr, "Texture border\n");
+      return GL_FALSE;
+   }
+
+   /* Upload teximages (not pipelined)
+    */
+   if (t->intel.base.dirty_images[0]) {
+      if (!i830SetTexImages( i830, tObj )) {
+	 return GL_FALSE;
+      }
+   }
+
+   /* Update state if this is a different texture object to last
+    * time.
+    */
+   if (i830->intel.CurrentTexObj[unit] != &t->intel || 
+       (t->intel.dirty & I830_UPLOAD_TEX(unit))) {
+      i830_import_tex_unit( i830, t, unit);
+   }
+
+   I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), GL_TRUE);
+
+   return GL_TRUE;
+}
+
+static GLboolean enable_tex_rect( GLcontext *ctx, GLuint unit )
+{
+   i830ContextPtr i830 = I830_CONTEXT(ctx);
+   GLuint mcs = i830->state.Tex[unit][I830_TEXREG_MCS];
+
+   mcs &= ~TEXCOORDS_ARE_NORMAL;
+   mcs |= TEXCOORDS_ARE_IN_TEXELUNITS;
+
+   if ((mcs != i830->state.Tex[unit][I830_TEXREG_MCS])
+       || (0 != i830->state.Tex[unit][I830_TEXREG_CUBE])) {
+      I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
+      i830->state.Tex[unit][I830_TEXREG_MCS] = mcs;
+      i830->state.Tex[unit][I830_TEXREG_CUBE] = 0;
+   }
+
+   return GL_TRUE;
+}
+
+
+static GLboolean enable_tex_2d( GLcontext *ctx, GLuint unit )
+{
+   i830ContextPtr i830 = I830_CONTEXT(ctx);
+   GLuint mcs = i830->state.Tex[unit][I830_TEXREG_MCS];
+
+   mcs &= ~TEXCOORDS_ARE_IN_TEXELUNITS;
+   mcs |= TEXCOORDS_ARE_NORMAL;
+
+   if ((mcs != i830->state.Tex[unit][I830_TEXREG_MCS])
+       || (0 != i830->state.Tex[unit][I830_TEXREG_CUBE])) {
+      I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
+      i830->state.Tex[unit][I830_TEXREG_MCS] = mcs;
+      i830->state.Tex[unit][I830_TEXREG_CUBE] = 0;
+   }
+
+   return GL_TRUE;
+}
+
+ 
+static GLboolean enable_tex_cube( GLcontext *ctx, GLuint unit )
+{
+   i830ContextPtr i830 = I830_CONTEXT(ctx);
+   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+   struct gl_texture_object *tObj = texUnit->_Current;
+   i830TextureObjectPtr t = (i830TextureObjectPtr)tObj->DriverData;
+   GLuint mcs = i830->state.Tex[unit][I830_TEXREG_MCS];
+   const GLuint cube = CUBE_NEGX_ENABLE | CUBE_POSX_ENABLE
+     | CUBE_NEGY_ENABLE | CUBE_POSY_ENABLE
+     | CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE;
+   GLuint face;
+
+   mcs &= ~TEXCOORDS_ARE_IN_TEXELUNITS;
+   mcs |= TEXCOORDS_ARE_NORMAL;
+
+   if ((mcs != i830->state.Tex[unit][I830_TEXREG_MCS])
+       || (cube != i830->state.Tex[unit][I830_TEXREG_CUBE])) {
+      I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
+      i830->state.Tex[unit][I830_TEXREG_MCS] = mcs;
+      i830->state.Tex[unit][I830_TEXREG_CUBE] = cube;
+   }
+
+   /* Upload teximages (not pipelined)
+    */
+   if ( t->intel.base.dirty_images[0] || t->intel.base.dirty_images[1] ||
+        t->intel.base.dirty_images[2] || t->intel.base.dirty_images[3] ||
+        t->intel.base.dirty_images[4] || t->intel.base.dirty_images[5] ) {
+      i830SetTexImages( i830, tObj );
+   }
+
+   /* upload (per face) */
+   for (face = 0; face < 6; face++) {
+      if (t->intel.base.dirty_images[face]) {
+	 if (!intelUploadTexImages( &i830->intel, &t->intel, face )) {
+	    return GL_FALSE;
+	 }
+      }
+   }
+
+
+   return GL_TRUE;
+}
+
+
+static GLboolean disable_tex( GLcontext *ctx, GLuint unit )
+{
+   i830ContextPtr i830 = I830_CONTEXT(ctx);
+
+   /* This is happening too often.  I need to conditionally send diffuse
+    * state to the card.  Perhaps a diffuse dirty flag of some kind.
+    * Will need to change this logic if more than 2 texture units are
+    * used.  We need to only do this up to the last unit enabled, or unit
+    * one if nothing is enabled.
+    */
+
+   if ( i830->intel.CurrentTexObj[unit] != NULL ) {
+      /* The old texture is no longer bound to this texture unit.
+       * Mark it as such.
+       */
+
+      i830->intel.CurrentTexObj[unit]->base.bound &= ~(1U << 0);
+      i830->intel.CurrentTexObj[unit] = NULL;
+   }
+
+   return GL_TRUE;
+}
+
+static GLboolean i830UpdateTexUnit( GLcontext *ctx, GLuint unit )
+{
+   struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+
+   if (texUnit->_ReallyEnabled &&
+       INTEL_CONTEXT(ctx)->intelScreen->textureSize < 2048 * 1024)
+      return GL_FALSE;
+
+   switch(texUnit->_ReallyEnabled) {
+   case TEXTURE_1D_BIT:
+   case TEXTURE_2D_BIT:
+      return (enable_tex_common( ctx, unit ) &&
+	      enable_tex_2d( ctx, unit ));
+   case TEXTURE_RECT_BIT:
+      return (enable_tex_common( ctx, unit ) &&
+	      enable_tex_rect( ctx, unit ));
+   case TEXTURE_CUBE_BIT:
+      return (enable_tex_common( ctx, unit ) &&
+	      enable_tex_cube( ctx, unit ));
+   case 0:
+      return disable_tex( ctx, unit );
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+void i830UpdateTextureState( intelContextPtr intel )
+{
+   i830ContextPtr i830 = I830_CONTEXT(intel);
+   GLcontext *ctx = &intel->ctx;
+   GLboolean ok;
+
+   if (0) fprintf(stderr, "%s\n", __FUNCTION__);
+
+   I830_ACTIVESTATE(i830, I830_UPLOAD_TEX_ALL, GL_FALSE);
+
+   ok = (i830UpdateTexUnit( ctx, 0 ) &&
+	 i830UpdateTexUnit( ctx, 1 ) &&
+	 i830UpdateTexUnit( ctx, 2 ) &&
+	 i830UpdateTexUnit( ctx, 3 ));
+
+   FALLBACK( intel, I830_FALLBACK_TEXTURE, !ok );
+
+   if (ok)
+      i830EmitTextureBlend( i830 );
+}
+
+
+