diff options
Diffstat (limited to 'make/config/jogl/gl-impl-CustomJavaCode-gl4.java')
| -rw-r--r-- | make/config/jogl/gl-impl-CustomJavaCode-gl4.java | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/make/config/jogl/gl-impl-CustomJavaCode-gl4.java b/make/config/jogl/gl-impl-CustomJavaCode-gl4.java new file mode 100644 index 000000000..a2c70eeee --- /dev/null +++ b/make/config/jogl/gl-impl-CustomJavaCode-gl4.java @@ -0,0 +1,339 @@ +// Tracks glBegin/glEnd calls to determine whether it is legal to +// query Vertex Buffer Object state +private boolean inBeginEndPair; + +/* FIXME: refactor dependence on Java 2D / JOGL bridge + +// Tracks creation and destruction of server-side OpenGL objects when +// the Java2D/OpenGL pipeline is enabled and it is using frame buffer +// objects (FBOs) to do its rendering +private GLObjectTracker tracker; + +public void setObjectTracker(GLObjectTracker tracker) { + this.tracker = tracker; +} + +*/ + +public GL3Impl(GLProfile glp, GLContextImpl context) { + this._context = context; + this.bufferSizeTracker = context.getBufferSizeTracker(); + this.bufferStateTracker = context.getBufferStateTracker(); + this.glStateTracker = context.getGLStateTracker(); + this.glProfile = glp; +} + +/** + * Provides platform-independent access to the wglAllocateMemoryNV / + * glXAllocateMemoryNV extension. + */ +public java.nio.ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) { + return _context.glAllocateMemoryNV(arg0, arg1, arg2, arg3); +} + +// +// Helpers for ensuring the correct amount of texture data +// + +/** Returns the number of bytes required to fill in the appropriate + texture. This is computed as closely as possible based on the + pixel pack or unpack parameters. The logic in this routine is + based on code in the SGI OpenGL sample implementation. */ + +private int imageSizeInBytes(int format, int type, int w, int h, int d, + boolean pack) { + int elements = 0; + int esize = 0; + + if (w < 0) return 0; + if (h < 0) return 0; + if (d < 0) return 0; + switch (format) { + case GL_STENCIL_INDEX: + elements = 1; + break; + case GL_RED: + case GL_GREEN: + case GL_BLUE: + case GL_ALPHA: + case GL_LUMINANCE: + case GL_DEPTH_COMPONENT: + elements = 1; + break; + case GL_LUMINANCE_ALPHA: + elements = 2; + break; + case GL_RGB: + case GL_BGR: + elements = 3; + break; + case GL_RGBA: + case GL_BGRA: + elements = 4; + break; + /* FIXME ?? + case GL_HILO_NV: + elements = 2; + break; */ + default: + return 0; + } + switch (type) { + case GL_BYTE: + case GL_UNSIGNED_BYTE: + esize = 1; + break; + case GL_UNSIGNED_BYTE_3_3_2: + case GL_UNSIGNED_BYTE_2_3_3_REV: + esize = 1; + elements = 1; + break; + case GL_SHORT: + case GL_UNSIGNED_SHORT: + esize = 2; + break; + case GL_UNSIGNED_SHORT_5_6_5: + case GL_UNSIGNED_SHORT_5_6_5_REV: + case GL_UNSIGNED_SHORT_4_4_4_4: + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + case GL_UNSIGNED_SHORT_5_5_5_1: + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + esize = 2; + elements = 1; + break; + case GL_INT: + case GL_UNSIGNED_INT: + case GL_FLOAT: + esize = 4; + break; + case GL_UNSIGNED_INT_8_8_8_8: + case GL_UNSIGNED_INT_8_8_8_8_REV: + case GL_UNSIGNED_INT_10_10_10_2: + case GL_UNSIGNED_INT_2_10_10_10_REV: + esize = 4; + elements = 1; + break; + default: + return 0; + } + return imageSizeInBytes(elements * esize, w, h, d, pack); +} + +private GLBufferSizeTracker bufferSizeTracker; +private GLBufferStateTracker bufferStateTracker; +private GLStateTracker glStateTracker; + +private boolean bufferObjectExtensionsInitialized = false; +private boolean haveARBPixelBufferObject; +private boolean haveEXTPixelBufferObject; +private boolean haveGL15; +private boolean haveGL21; +private boolean haveARBVertexBufferObject; + +private void initBufferObjectExtensionChecks() { + if (bufferObjectExtensionsInitialized) + return; + bufferObjectExtensionsInitialized = true; + haveARBPixelBufferObject = isExtensionAvailable("GL_ARB_pixel_buffer_object"); + haveEXTPixelBufferObject = isExtensionAvailable("GL_EXT_pixel_buffer_object"); + haveGL15 = isExtensionAvailable("GL_VERSION_1_5"); + haveGL21 = isExtensionAvailable("GL_VERSION_2_1"); + haveARBVertexBufferObject = isExtensionAvailable("GL_ARB_vertex_buffer_object"); +} + +private boolean checkBufferObject(boolean extension1, + boolean extension2, + boolean extension3, + boolean enabled, + int state, + String kind, boolean throwException) { + if (inBeginEndPair) { + throw new GLException("May not call this between glBegin and glEnd"); + } + boolean avail = (extension1 || extension2 || extension3); + if (!avail) { + if (!enabled) + return true; + if(throwException) { + throw new GLException("Required extensions not available to call this function"); + } + return false; + } + int buffer = bufferStateTracker.getBoundBufferObject(state, this); + if (enabled) { + if (buffer == 0) { + if(throwException) { + throw new GLException(kind + " must be enabled to call this method"); + } + return false; + } + } else { + if (buffer != 0) { + if(throwException) { + throw new GLException(kind + " must be disabled to call this method"); + } + return false; + } + } + return true; +} + +private boolean checkArrayVBODisabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveGL15, + haveARBVertexBufferObject, + false, + false, + GL.GL_ARRAY_BUFFER, + "array vertex_buffer_object", throwException); +} + +private boolean checkArrayVBOEnabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveGL15, + haveARBVertexBufferObject, + false, + true, + GL.GL_ARRAY_BUFFER, + "array vertex_buffer_object", throwException); +} + +private boolean checkElementVBODisabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveGL15, + haveARBVertexBufferObject, + false, + false, + GL.GL_ELEMENT_ARRAY_BUFFER, + "element vertex_buffer_object", throwException); +} + +private boolean checkElementVBOEnabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveGL15, + haveARBVertexBufferObject, + false, + true, + GL.GL_ELEMENT_ARRAY_BUFFER, + "element vertex_buffer_object", throwException); +} + +private boolean checkUnpackPBODisabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveARBPixelBufferObject, + haveEXTPixelBufferObject, + haveGL21, + false, + GL2.GL_PIXEL_UNPACK_BUFFER, + "unpack pixel_buffer_object", throwException); +} + +private boolean checkUnpackPBOEnabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveARBPixelBufferObject, + haveEXTPixelBufferObject, + haveGL21, + true, + GL2.GL_PIXEL_UNPACK_BUFFER, + "unpack pixel_buffer_object", throwException); +} + +private boolean checkPackPBODisabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveARBPixelBufferObject, + haveEXTPixelBufferObject, + haveGL21, + false, + GL2.GL_PIXEL_PACK_BUFFER, + "pack pixel_buffer_object", throwException); +} + +private boolean checkPackPBOEnabled(boolean throwException) { + initBufferObjectExtensionChecks(); + return checkBufferObject(haveARBPixelBufferObject, + haveEXTPixelBufferObject, + haveGL21, + true, + GL2.GL_PIXEL_PACK_BUFFER, + "pack pixel_buffer_object", throwException); +} + +public boolean glIsPBOPackEnabled() { + return checkPackPBOEnabled(false); +} + +public boolean glIsPBOUnpackEnabled() { + return checkUnpackPBOEnabled(false); +} + +// Attempt to return the same ByteBuffer object from glMapBuffer if +// the vertex buffer object's base address and size haven't changed +private static class ARBVBOKey { + private long addr; + private int capacity; + + ARBVBOKey(long addr, int capacity) { + this.addr = addr; + this.capacity = capacity; + } + + public int hashCode() { + return (int) addr; + } + + public boolean equals(Object o) { + if ((o == null) || (!(o instanceof ARBVBOKey))) { + return false; + } + + ARBVBOKey other = (ARBVBOKey) o; + return ((addr == other.addr) && (capacity == other.capacity)); + } +} + +private Map/*<ARBVBOKey, ByteBuffer>*/ arbVBOCache = new HashMap(); + +/** Entry point to C language function: <br> <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */ +public java.nio.ByteBuffer glMapBuffer(int target, int access) { + final long __addr_ = ((GL3ProcAddressTable)_context.getGLProcAddressTable())._addressof_glMapBuffer; + if (__addr_ == 0) { + throw new GLException("Method \"glMapBuffer\" not available"); + } + int sz = bufferSizeTracker.getBufferSize(bufferStateTracker, + target, + this); + long addr; + addr = dispatch_glMapBuffer(target, access, __addr_); + if (addr == 0 || sz == 0) { + return null; + } + ARBVBOKey key = new ARBVBOKey(addr, sz); + ByteBuffer _res = (ByteBuffer) arbVBOCache.get(key); + if (_res == null) { + _res = newDirectByteBuffer(addr, sz); + InternalBufferUtil.nativeOrder(_res); + arbVBOCache.put(key, _res); + } + _res.position(0); + return _res; +} + +/** Encapsulates function pointer for OpenGL function <br>: <code> LPVOID glMapBuffer(GLenum target, GLenum access); </code> */ +native private long dispatch_glMapBuffer(int target, int access, long glProcAddress); + +native private ByteBuffer newDirectByteBuffer(long addr, int capacity); + + /** Dummy implementation for the ES 2.0 function: <br> <code> void {@native glShaderBinary}(GLint n, const GLuint * shaders, GLenum binaryformat, const void * binary, GLint length); </code> <br> Always throws a GLException! */ + public void glShaderBinary(int n, java.nio.IntBuffer shaders, int binaryformat, java.nio.Buffer binary, int length) { + throw new GLException("Method \"glShaderBinary\" not available"); + } + + /** Dummy implementation for the ES 2.0 function: <br> <code> void {@native glShaderBinary}(GLint n, const GLuint * shaders, GLenum binaryformat, const void * binary, GLint length); </code> <br> Always throws a GLException! */ + public void glShaderBinary(int n, int[] shaders, int shaders_offset, int binaryformat, java.nio.Buffer binary, int length) { + throw new GLException("Method \"glShaderBinary\" not available"); + } + + public void glReleaseShaderCompiler() { + // nothing to do + } + |