Minecraft crashes because of a high resolution texture pack

---- Minecraft Crash Report ----
// Oops.

Time: 13/05/13 19:10
Description: Rendering screen

java.lang.OutOfMemoryError
	at sun.misc.Unsafe.allocateMemory(Native Method)
	at java.nio.DirectByteBuffer.<init>(Unknown Source)
	at java.nio.ByteBuffer.allocateDirect(Unknown Source)
	at bio.<init>(SourceFile:122)
	at bio.<init>(SourceFile:108)
	at biq.a(SourceFile:127)
	at biq.a(SourceFile:133)
	at bim.c(SourceFile:60)
	at bir.b(SourceFile:102)
	at bge.d(SourceFile:350)
	at bge.c(SourceFile:301)
	at bjx.a(SourceFile:146)
	at axt.a(SourceFile:175)
	at bjw.a(SourceFile:109)
	at bfq.b(SourceFile:768)
	at net.minecraft.client.Minecraft.K(SourceFile:597)
	at net.minecraft.client.Minecraft.run(SourceFile:526)
	at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at sun.misc.Unsafe.allocateMemory(Native Method)
	at java.nio.DirectByteBuffer.<init>(Unknown Source)
	at java.nio.ByteBuffer.allocateDirect(Unknown Source)
	at bio.<init>(SourceFile:122)
	at bio.<init>(SourceFile:108)
	at biq.a(SourceFile:127)
	at biq.a(SourceFile:133)
	at bim.c(SourceFile:60)
	at bir.b(SourceFile:102)
	at bge.d(SourceFile:350)
	at bge.c(SourceFile:301)
	at bjx.a(SourceFile:146)
	at axt.a(SourceFile:175)
	at bjw.a(SourceFile:109)

-- Screen render details --
Details:
	Screen name: bjw
	Mouse location: Scaled: (168, 151). Absolute: (337, 176)
	Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
	at bfq.b(SourceFile:768)
	at net.minecraft.client.Minecraft.K(SourceFile:597)
	at net.minecraft.client.Minecraft.run(SourceFile:526)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.5.2
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_15, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 207550424 bytes (197 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	LWJGL: 2.4.2
	OpenGL: Intel(R) HD Graphics GL version 3.1.0 - Build 9.17.10.2817, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Texture Pack: Sphax PureBDcraft 512x MC15.zip
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null