From 297807d431aed30d7fff3749eea91bde84f60cfa Mon Sep 17 00:00:00 2001
From: Alan Hourihane <alanh@tungstengraphics.com>
Date: Sun, 7 Dec 2003 23:40:13 +0000
Subject: merge i830 DRI driver from DRI trunk

---
 src/mesa/drivers/dri/i830/i830_state.c    |  3 +++
 src/mesa/drivers/dri/i830/i830_texstate.c | 41 ++++++-------------------------
 2 files changed, 11 insertions(+), 33 deletions(-)

(limited to 'src/mesa')

diff --git a/src/mesa/drivers/dri/i830/i830_state.c b/src/mesa/drivers/dri/i830/i830_state.c
index 6eb46fac46..004b49acec 100644
--- a/src/mesa/drivers/dri/i830/i830_state.c
+++ b/src/mesa/drivers/dri/i830/i830_state.c
@@ -1248,11 +1248,14 @@ static void i830Enable(GLcontext *ctx, GLenum cap, GLboolean state)
       if (imesa->hw_stencil) {
 	 I830_STATECHANGE(imesa, I830_UPLOAD_CTX);
 	 imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_STENCIL_TEST;
+	 imesa->Setup[I830_CTXREG_ENABLES_2] &= ~ENABLE_STENCIL_WRITE;
 
 	 if (state) {
 	    imesa->Setup[I830_CTXREG_ENABLES_1] |= ENABLE_STENCIL_TEST;
+	    imesa->Setup[I830_CTXREG_ENABLES_2] |= ENABLE_STENCIL_WRITE;
 	 } else {
 	    imesa->Setup[I830_CTXREG_ENABLES_1] |= DISABLE_STENCIL_TEST;
+	    imesa->Setup[I830_CTXREG_ENABLES_2] |= DISABLE_STENCIL_WRITE;
 	 }
       } else {
 	 FALLBACK( imesa, I830_FALLBACK_STENCIL, state );
diff --git a/src/mesa/drivers/dri/i830/i830_texstate.c b/src/mesa/drivers/dri/i830/i830_texstate.c
index 03c98d2ee9..4d211176fd 100644
--- a/src/mesa/drivers/dri/i830/i830_texstate.c
+++ b/src/mesa/drivers/dri/i830/i830_texstate.c
@@ -62,7 +62,7 @@ static void i830SetTexImages( i830ContextPtr imesa,
    GLuint total_height, pitch, i, textureFormat;
    i830TextureObjectPtr t = (i830TextureObjectPtr) tObj->DriverData;
    const struct gl_texture_image *baseImage = tObj->Image[tObj->BaseLevel];
-   GLint firstLevel, lastLevel, numLevels;
+   GLint numLevels;
 
    switch( baseImage->TexFormat->MesaFormat ) {
    case MESA_FORMAT_L8:
@@ -119,52 +119,27 @@ static void i830SetTexImages( i830ContextPtr imesa,
    }
 
    /* 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.
     */
-   switch (tObj->Target) {
-   case GL_TEXTURE_1D:
-   case GL_TEXTURE_2D:
-      firstLevel = tObj->BaseLevel + (GLint) (tObj->MinLod + 0.5);
-      firstLevel = MAX2(firstLevel, tObj->BaseLevel);
-      lastLevel = tObj->BaseLevel + (GLint) (tObj->MaxLod + 0.5);
-      lastLevel = MAX2(lastLevel, tObj->BaseLevel);
-      lastLevel = MIN2(lastLevel, tObj->BaseLevel + baseImage->MaxLog2);
-      lastLevel = MIN2(lastLevel, tObj->MaxLevel);
-      lastLevel = MAX2(firstLevel, lastLevel); /* need at least one level */
-      break;
-   case GL_TEXTURE_RECTANGLE_NV:
-      firstLevel = lastLevel = 0;
-      break;
-   default:
-      fprintf(stderr, "%s: bad target %s\n", __FUNCTION__,
-	      _mesa_lookup_enum_by_nr(tObj->Target));
-      return;
-   }
-
 
-   /* save these values */
-   t->base.firstLevel = firstLevel;
-   t->base.lastLevel = lastLevel;
+   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:
     */
-   numLevels = lastLevel - firstLevel + 1;
+   numLevels = t->base.lastLevel - t->base.firstLevel + 1;
 
    /* Pitch would be subject to additional rules if texture memory were
     * tiled.  Currently it isn't. 
     */
    if (0) {
       pitch = 128;
-      while (pitch < tObj->Image[firstLevel]->Width * t->texelBytes)
+      while (pitch < tObj->Image[t->base.firstLevel]->Width * t->texelBytes)
 	 pitch *= 2;
    }
    else {
-      pitch = tObj->Image[firstLevel]->Width * t->texelBytes;
+      pitch = tObj->Image[t->base.firstLevel]->Width * t->texelBytes;
       pitch = (pitch + 3) & ~3;
    }
 
@@ -173,7 +148,7 @@ static void i830SetTexImages( i830ContextPtr imesa,
     * lines required:
     */
    for ( total_height = i = 0 ; i < numLevels ; i++ ) {
-      t->image[0][i].image = tObj->Image[firstLevel + i];
+      t->image[0][i].image = tObj->Image[t->base.firstLevel + i];
       if (!t->image[0][i].image) 
 	 break;
       
@@ -185,8 +160,8 @@ static void i830SetTexImages( i830ContextPtr imesa,
    t->Pitch = pitch;
    t->base.totalSize = total_height*pitch;
    t->Setup[I830_TEXREG_TM0S1] = 
-      (((tObj->Image[firstLevel]->Height - 1) << TM0S1_HEIGHT_SHIFT) |
-       ((tObj->Image[firstLevel]->Width - 1) << TM0S1_WIDTH_SHIFT) |
+      (((tObj->Image[t->base.firstLevel]->Height - 1) << TM0S1_HEIGHT_SHIFT) |
+       ((tObj->Image[t->base.firstLevel]->Width - 1) << TM0S1_WIDTH_SHIFT) |
        textureFormat);
    t->Setup[I830_TEXREG_TM0S2] = 
       ((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT));   
-- 
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