add a number of PBO validate/map/unmap functions

[mesa.git] / src / mesa / main / teximage.c

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index f315c3de74e1b1be0d82761c620cb51794c038c2..384e1455203c3185d79a7c3ec0c869ca9bbcdcc5 100644 (file)
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.1
+ * Version:  7.1
  *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2007  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"),
@@ -595,8 +595,12 @@ is_compressed_format(GLcontext *ctx, GLenum internalFormat)
 }
 
 
-static GLuint
-texture_face(GLenum target)
+/**
+ * For cube map faces, return a face index in [0,5].
+ * For other targets return 0;
+ */
+GLuint
+_mesa_tex_target_to_face(GLenum target)
 {
    if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
        target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
@@ -625,6 +629,7 @@ _mesa_set_tex_image(struct gl_texture_object *tObj,
 {
    ASSERT(tObj);
    ASSERT(texImage);
+   /* XXX simplify this with _mesa_tex_target_to_face() */
    switch (target) {
       case GL_TEXTURE_1D:
       case GL_TEXTURE_2D:
@@ -828,6 +833,7 @@ _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
    if (level < 0 || level >= MAX_TEXTURE_LEVELS) 
       return NULL;
 
+   /* XXX simplify this with _mesa_tex_target_to_face() */
    switch (target) {
       case GL_TEXTURE_1D:
       case GL_PROXY_TEXTURE_1D:
@@ -1208,19 +1214,30 @@ _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
    img->Width = width;
    img->Height = height;
    img->Depth = depth;
+
    img->Width2 = width - 2 * border;   /* == 1 << img->WidthLog2; */
-   img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
-   img->Depth2 = depth - 2 * border;   /* == 1 << img->DepthLog2; */
    img->WidthLog2 = logbase2(img->Width2);
-   if (height == 1)  /* 1-D texture */
+
+   if (height == 1) { /* 1-D texture */
+      img->Height2 = 1;
       img->HeightLog2 = 0;
-   else
+   }
+   else {
+      img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
       img->HeightLog2 = logbase2(img->Height2);
-   if (depth == 1)   /* 2-D texture */
+   }
+
+   if (depth == 1) {  /* 2-D texture */
+      img->Depth2 = 1;
       img->DepthLog2 = 0;
-   else
+   }
+   else {
+      img->Depth2 = depth - 2 * border;   /* == 1 << img->DepthLog2; */
       img->DepthLog2 = logbase2(img->Depth2);
+   }
+
    img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
+
    img->IsCompressed = GL_FALSE;
    img->CompressedSize = 0;
 
@@ -1264,6 +1281,10 @@ _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
  * A hardware driver might override this function if, for example, the
  * max 3D texture size is 512x512x64 (i.e. not a cube).
  *
+ * Note that width, height, depth == 0 is not an error.  However, a
+ * texture with zero width/height/depth will be considered "incomplete"
+ * and texturing will effectively be disabled.
+ *
  * \param target  one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
  *                GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
  *                GL_PROXY_TEXTURE_CUBE_MAP_ARB.
@@ -1293,7 +1314,7 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width >0 && _mesa_bitcount(width - 2 * border) != 1) ||
           level >= ctx->Const.MaxTextureLevels) {
          /* bad width or level */
          return GL_FALSE;
@@ -1303,10 +1324,10 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
           height < 2 * border || height > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(height - 2 * border) != 1) ||
+           height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
           level >= ctx->Const.MaxTextureLevels) {
          /* bad width or height or level */
          return GL_FALSE;
@@ -1316,21 +1337,21 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
           height < 2 * border || height > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(height - 2 * border) != 1) ||
+           height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
           depth < 2 * border || depth > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(depth - 2 * border) != 1) ||
+           depth > 0 && _mesa_bitcount(depth - 2 * border) != 1) ||
           level >= ctx->Const.Max3DTextureLevels) {
          /* bad width or height or depth or level */
          return GL_FALSE;
       }
       return GL_TRUE;
    case GL_PROXY_TEXTURE_RECTANGLE_NV:
-      if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
-          height < 1 || height > ctx->Const.MaxTextureRectSize ||
+      if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
+          height < 0 || height > ctx->Const.MaxTextureRectSize ||
           level != 0) {
          /* bad width or height or level */
          return GL_FALSE;
@@ -1340,10 +1361,10 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
           height < 2 * border || height > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(height - 2 * border) != 1) ||
+           height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
           level >= ctx->Const.MaxCubeTextureLevels) {
          /* bad width or height */
          return GL_FALSE;
@@ -1353,7 +1374,7 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
           level >= ctx->Const.MaxTextureLevels) {
          /* bad width or level */
          return GL_FALSE;
@@ -1367,10 +1388,10 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
       maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
       if (width < 2 * border || width > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(width - 2 * border) != 1) ||
+           width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
           height < 2 * border || height > 2 + maxSize ||
           (!ctx->Extensions.ARB_texture_non_power_of_two &&
-           _mesa_bitcount(height - 2 * border) != 1) ||
+           height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
           level >= ctx->Const.MaxTextureLevels) {
          /* bad width or height or level */
          return GL_FALSE;
@@ -1472,7 +1493,7 @@ texture_error_check( GLcontext *ctx, GLenum target,
       if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
          proxy_target = GL_PROXY_TEXTURE_1D;
          height = 1;
-         width = 1;
+         depth = 1;
       }
       else {
          _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
@@ -2302,9 +2323,6 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
       return;
    }
 
-   if (!pixels)
-      return;
-
    _mesa_lock_texture(ctx, texObj);
    {
       texImage = _mesa_select_tex_image(ctx, texObj, target, level);
@@ -2420,7 +2438,7 @@ _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
       struct gl_texture_unit *texUnit;
       struct gl_texture_object *texObj;
       struct gl_texture_image *texImage;
-      const GLuint face = texture_face(target);
+      const GLuint face = _mesa_tex_target_to_face(target);
 
       if (texture_error_check(ctx, target, level, internalFormat,
                               format, type, 1, postConvWidth, 1, 1, border)) {
@@ -2523,7 +2541,7 @@ _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
       struct gl_texture_unit *texUnit;
       struct gl_texture_object *texObj;
       struct gl_texture_image *texImage;
-      const GLuint face = texture_face(target);
+      const GLuint face = _mesa_tex_target_to_face(target);
 
       if (texture_error_check(ctx, target, level, internalFormat,
                               format, type, 2, postConvWidth, postConvHeight,
@@ -2625,7 +2643,7 @@ _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
       struct gl_texture_unit *texUnit;
       struct gl_texture_object *texObj;
       struct gl_texture_image *texImage;
-      const GLuint face = texture_face(target);
+      const GLuint face = _mesa_tex_target_to_face(target);
 
       if (texture_error_check(ctx, target, level, (GLint) internalFormat,
                               format, type, 3, width, height, depth, border)) {
@@ -2893,7 +2911,7 @@ _mesa_CopyTexImage1D( GLenum target, GLint level,
    struct gl_texture_object *texObj;
    struct gl_texture_image *texImage;
    GLsizei postConvWidth = width;
-   const GLuint face = texture_face(target);
+   const GLuint face = _mesa_tex_target_to_face(target);
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
@@ -2956,7 +2974,7 @@ _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
    struct gl_texture_object *texObj;
    struct gl_texture_image *texImage;
    GLsizei postConvWidth = width, postConvHeight = height;
-   const GLuint face = texture_face(target);
+   const GLuint face = _mesa_tex_target_to_face(target);
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
@@ -3020,6 +3038,9 @@ _mesa_CopyTexSubImage1D( GLenum target, GLint level,
    struct gl_texture_object *texObj;
    struct gl_texture_image *texImage;
    GLsizei postConvWidth = width;
+   GLint yoffset = 0;
+   GLsizei height = 1;
+
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
@@ -3049,8 +3070,13 @@ _mesa_CopyTexSubImage1D( GLenum target, GLint level,
       /* If we have a border, xoffset=-1 is legal.  Bias by border width */
       xoffset += texImage->Border;
 
-      ASSERT(ctx->Driver.CopyTexSubImage1D);
-      (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
+      if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+                                     &width, &height)) {
+         ASSERT(ctx->Driver.CopyTexSubImage1D);
+         ctx->Driver.CopyTexSubImage1D(ctx, target, level,
+                                       xoffset, x, y, width);
+      }
+
       ctx->NewState |= _NEW_TEXTURE;
    }
  out:
@@ -3095,10 +3121,14 @@ _mesa_CopyTexSubImage2D( GLenum target, GLint level,
       /* If we have a border, xoffset=-1 is legal.  Bias by border width */
       xoffset += texImage->Border;
       yoffset += texImage->Border;
-      
-      ASSERT(ctx->Driver.CopyTexSubImage2D);
-      (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
+
+      if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+                                     &width, &height)) {
+         ASSERT(ctx->Driver.CopyTexSubImage2D);
+         ctx->Driver.CopyTexSubImage2D(ctx, target, level,
                                       xoffset, yoffset, x, y, width, height);
+      }
+
       ctx->NewState |= _NEW_TEXTURE;
    }
  out:
@@ -3146,10 +3176,14 @@ _mesa_CopyTexSubImage3D( GLenum target, GLint level,
       yoffset += texImage->Border;
       zoffset += texImage->Border;
       
-      ASSERT(ctx->Driver.CopyTexSubImage3D);
-      (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
+      if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+                                     &width, &height)) {
+         ASSERT(ctx->Driver.CopyTexSubImage3D);
+         ctx->Driver.CopyTexSubImage3D(ctx, target, level,
                                       xoffset, yoffset, zoffset,
                                       x, y, width, height);
+      }
+
       ctx->NewState |= _NEW_TEXTURE;
    }
  out:
@@ -3768,7 +3802,7 @@ _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
                                              width, height, depth, /*size*/
                                              format, imageSize);
    if (error) {
-      _mesa_error(ctx, error, "glCompressedTexSubImage2D");
+      _mesa_error(ctx, error, "glCompressedTexSubImage3D");
       return;
    }
 
@@ -3819,7 +3853,6 @@ _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
-
    texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
    texObj = _mesa_select_tex_object(ctx, texUnit, target);
    if (!texObj) {
@@ -3840,24 +3873,25 @@ _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
       return;
    }
 
-
    _mesa_lock_texture(ctx, texObj);
    {
       texImage = _mesa_select_tex_image(ctx, texObj, target, level);
-      if (!texImage) {
-        /* probably invalid mipmap level */
-        _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
-        goto out;
+      if (texImage) {
+         if (texImage->IsCompressed) {
+            /* this typically calls _mesa_get_compressed_teximage() */
+            ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
+                                              texObj, texImage);
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetCompressedTexImageARB");
+         }
       }
-
-      if (!texImage->IsCompressed) {
-        _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
-        goto out;
+      else {
+         /* probably invalid mipmap level */
+         _mesa_error(ctx, GL_INVALID_VALUE,
+                     "glGetCompressedTexImageARB(level)");
       }
-
-      /* this typically calls _mesa_get_compressed_teximage() */
-      ctx->Driver.GetCompressedTexImage(ctx, target, level, img, texObj,texImage);
    }
- out:
    _mesa_unlock_texture(ctx, texObj);
 }