/**
* Returns JNI_TRUE if the given extension name is available for the current
* GraphicsConfig; JNI_FALSE otherwise. An extension is considered available
* if its identifier string is found amongst the space-delimited GL_EXTENSIONS
* string.
*
* Adapted from the OpenGL Red Book, pg. 506.
*/
jboolean
OGLContext_IsExtensionAvailable(const char *extString, char *extName)
{
jboolean ret = JNI_FALSE;
char *p = (char *)extString;
char *end;
if (extString == NULL) {
J2dTraceLn(J2D_TRACE_INFO, "OGLContext_IsExtensionAvailable");
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLContext_IsExtensionAvailable: extension string is null");
return JNI_FALSE;
}
end = p + strlen(p);
while (p < end) {
size_t n = strcspn(p, " ");
if ((strlen(extName) == n) && (strncmp(extName, p, n) == 0)) {
ret = JNI_TRUE;
break;
}
p += (n + 1);
}
J2dRlsTraceLn2(J2D_TRACE_INFO,
"OGLContext_IsExtensionAvailable: %s=%s",
extName, ret ? "true" : "false");
return ret;
}
// static
HRESULT
D3DPipelineManager::CheckForBadHardware(DWORD vId, DWORD dId, LONGLONG version)
{
DWORD vendorId, deviceId;
UINT adapterInfo = 0;
J2dTraceLn(J2D_TRACE_INFO, "D3DPPLM::CheckForBadHardware");
while ((vendorId = badHardware[adapterInfo].VendorId) != 0x0000 &&
(deviceId = badHardware[adapterInfo].DeviceId) != 0x0000)
{
if (vendorId == vId && (deviceId == dId || deviceId == ALL_DEVICEIDS)) {
LONGLONG goodVersion = badHardware[adapterInfo].DriverVersion;
USHORT osInfo = badHardware[adapterInfo].OsInfo;
// the hardware check fails if:
// - we have an entry for this OS and
// - hardware is bad for all driver versions (NO_VERSION), or
// we have a driver version which is older than the
// minimum required for this OS
if (D3DPPLM_OsVersionMatches(osInfo) &&
(goodVersion == NO_VERSION || version < goodVersion))
{
J2dRlsTraceLn2(J2D_TRACE_ERROR,
"D3DPPLM::CheckForBadHardware: found matching "\
"hardware: VendorId=0x%04x DeviceId=0x%04x",
vendorId, deviceId);
if (goodVersion != NO_VERSION) {
// this was a match by the driver version
LARGE_INTEGER li;
li.QuadPart = goodVersion;
J2dRlsTraceLn(J2D_TRACE_ERROR,
" bad driver found, device disabled");
J2dRlsTraceLn4(J2D_TRACE_ERROR,
" update your driver to at "\
"least version %d.%d.%d.%d",
HIWORD(li.HighPart), LOWORD(li.HighPart),
HIWORD(li.LowPart), LOWORD(li.LowPart));
} else {
// this was a match by the device (no good driver for this
// device)
J2dRlsTraceLn(J2D_TRACE_ERROR,
"D3DPPLM::CheckForBadHardware: bad hardware "\
"found, device disabled");
}
if (!bNoHwCheck) {
return D3DERR_INVALIDDEVICE;
}
J2dRlsTraceLn(J2D_TRACE_WARNING, " Warning: hw/driver match "\
"overridden (via J2D_D3D_NO_HWCHECK)");
}
}
adapterInfo++;
}
return S_OK;
}
/**
* Returns the X11 VisualID that corresponds to the best GLXFBConfig for the
* given screen. If no valid visual could be found, this method returns zero.
* Note that this method will attempt to initialize GLX (and all the
* necessary function symbols) if it has not been already. The AWT_LOCK
* must be acquired before calling this method.
*/
VisualID
GLXGC_FindBestVisual(JNIEnv *env, jint screen)
{
GLXFBConfig fbc;
XVisualInfo *xvi;
VisualID visualid;
J2dRlsTraceLn1(J2D_TRACE_INFO, "GLXGC_FindBestVisual: scn=%d", screen);
if (!GLXGC_IsGLXAvailable()) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXGC_FindBestVisual: could not initialize GLX");
return 0;
}
fbc = GLXGC_InitFBConfig(env, screen, 0);
if (fbc == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXGC_FindBestVisual: could not find best visual");
return 0;
}
xvi = j2d_glXGetVisualFromFBConfig(awt_display, fbc);
if (xvi == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXGC_FindBestVisual: could not get visual for fbconfig");
return 0;
}
visualid = xvi->visualid;
XFree(xvi);
J2dRlsTraceLn2(J2D_TRACE_INFO,
"GLXGC_FindBestVisual: chose 0x%x as the best visual for screen %d",
visualid, screen);
return visualid;
}
/**
* Compiles and links the given fragment shader program. If
* successful, this function returns a handle to the newly created shader
* program; otherwise returns 0.
*/
GLhandleARB
OGLContext_CreateFragmentProgram(const char *fragmentShaderSource)
{
GLhandleARB fragmentShader, fragmentProgram;
GLint success;
int infoLogLength = 0;
J2dTraceLn(J2D_TRACE_INFO, "OGLContext_CreateFragmentProgram");
// create the shader object and compile the shader source code
fragmentShader = j2d_glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
j2d_glShaderSourceARB(fragmentShader, 1, &fragmentShaderSource, NULL);
j2d_glCompileShaderARB(fragmentShader);
j2d_glGetObjectParameterivARB(fragmentShader,
GL_OBJECT_COMPILE_STATUS_ARB,
&success);
// print the compiler messages, if necessary
j2d_glGetObjectParameterivARB(fragmentShader,
GL_OBJECT_INFO_LOG_LENGTH_ARB,
&infoLogLength);
if (infoLogLength > 1) {
char infoLog[1024];
j2d_glGetInfoLogARB(fragmentShader, 1024, NULL, infoLog);
J2dRlsTraceLn2(J2D_TRACE_WARNING,
"OGLContext_CreateFragmentProgram: compiler msg (%d):\n%s",
infoLogLength, infoLog);
}
if (!success) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLContext_CreateFragmentProgram: error compiling shader");
j2d_glDeleteObjectARB(fragmentShader);
return 0;
}
// create the program object and attach it to the shader
fragmentProgram = j2d_glCreateProgramObjectARB();
j2d_glAttachObjectARB(fragmentProgram, fragmentShader);
// it is now safe to delete the shader object
j2d_glDeleteObjectARB(fragmentShader);
// link the program
j2d_glLinkProgramARB(fragmentProgram);
j2d_glGetObjectParameterivARB(fragmentProgram,
GL_OBJECT_LINK_STATUS_ARB,
&success);
// print the linker messages, if necessary
j2d_glGetObjectParameterivARB(fragmentProgram,
GL_OBJECT_INFO_LOG_LENGTH_ARB,
&infoLogLength);
if (infoLogLength > 1) {
char infoLog[1024];
j2d_glGetInfoLogARB(fragmentProgram, 1024, NULL, infoLog);
J2dRlsTraceLn2(J2D_TRACE_WARNING,
"OGLContext_CreateFragmentProgram: linker msg (%d):\n%s",
infoLogLength, infoLog);
}
if (!success) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLContext_CreateFragmentProgram: error linking shader");
j2d_glDeleteObjectARB(fragmentProgram);
return 0;
}
return fragmentProgram;
}
HRESULT D3DPipelineManager::CheckAdaptersInfo()
{
D3DADAPTER_IDENTIFIER9 aid;
UINT failedAdaptersCount = 0;
J2dRlsTraceLn(J2D_TRACE_INFO, "CheckAdaptersInfo");
J2dRlsTraceLn(J2D_TRACE_INFO, "------------------");
for (UINT Adapter = 0; Adapter < adapterCount; Adapter++) {
if (FAILED(pd3d9->GetAdapterIdentifier(Adapter, 0, &aid))) {
pAdapters[Adapter].state = CONTEXT_INIT_FAILED;
failedAdaptersCount++;
continue;
}
J2dRlsTraceLn1(J2D_TRACE_INFO, "Adapter Ordinal : %d", Adapter);
J2dRlsTraceLn1(J2D_TRACE_INFO, "Adapter Handle : 0x%x",
pd3d9->GetAdapterMonitor(Adapter));
J2dRlsTraceLn1(J2D_TRACE_INFO, "Description : %s",
aid.Description);
J2dRlsTraceLn2(J2D_TRACE_INFO, "GDI Name, Driver : %s, %s",
aid.DeviceName, aid.Driver);
J2dRlsTraceLn1(J2D_TRACE_INFO, "Vendor Id : 0x%04x",
aid.VendorId);
J2dRlsTraceLn1(J2D_TRACE_INFO, "Device Id : 0x%04x",
aid.DeviceId);
J2dRlsTraceLn1(J2D_TRACE_INFO, "SubSys Id : 0x%x",
aid.SubSysId);
J2dRlsTraceLn4(J2D_TRACE_INFO, "Driver Version : %d.%d.%d.%d",
HIWORD(aid.DriverVersion.HighPart),
LOWORD(aid.DriverVersion.HighPart),
HIWORD(aid.DriverVersion.LowPart),
LOWORD(aid.DriverVersion.LowPart));
J2dRlsTrace3(J2D_TRACE_INFO,
"[I] GUID : {%08X-%04X-%04X-",
aid.DeviceIdentifier.Data1,
aid.DeviceIdentifier.Data2,
aid.DeviceIdentifier.Data3);
J2dRlsTrace4(J2D_TRACE_INFO, "%02X%02X-%02X%02X",
aid.DeviceIdentifier.Data4[0],
aid.DeviceIdentifier.Data4[1],
aid.DeviceIdentifier.Data4[2],
aid.DeviceIdentifier.Data4[3]);
J2dRlsTrace4(J2D_TRACE_INFO, "%02X%02X%02X%02X}\n",
aid.DeviceIdentifier.Data4[4],
aid.DeviceIdentifier.Data4[5],
aid.DeviceIdentifier.Data4[6],
aid.DeviceIdentifier.Data4[7]);
if (FAILED(CheckForBadHardware(aid.VendorId, aid.DeviceId,
aid.DriverVersion.QuadPart)) ||
FAILED(CheckDeviceCaps(Adapter)) ||
FAILED(D3DEnabledOnAdapter(Adapter)))
{
pAdapters[Adapter].state = CONTEXT_INIT_FAILED;
failedAdaptersCount++;
}
J2dRlsTraceLn(J2D_TRACE_INFO, "------------------");
}
if (failedAdaptersCount == adapterCount) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"D3DPPLM::CheckAdaptersInfo: no suitable adapters found");
return E_FAIL;
}
return S_OK;
}
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_WGLSurfaceData_initPbuffer
(JNIEnv *env, jobject wglsd,
jlong pData, jlong pConfigInfo,
jboolean isOpaque,
jint width, jint height)
{
int attrKeys[] = {
WGL_MAX_PBUFFER_WIDTH_ARB,
WGL_MAX_PBUFFER_HEIGHT_ARB,
};
int attrVals[2];
int pbAttrList[] = { 0 };
OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
WGLGraphicsConfigInfo *wglInfo =
(WGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
WGLSDOps *wglsdo;
HWND hwnd;
HDC hdc, pbufferDC;
HPBUFFERARB pbuffer;
int maxWidth, maxHeight;
int actualWidth, actualHeight;
J2dTraceLn3(J2D_TRACE_INFO,
"WGLSurfaceData_initPbuffer: w=%d h=%d opq=%d",
width, height, isOpaque);
if (oglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: ops are null");
return JNI_FALSE;
}
wglsdo = (WGLSDOps *)oglsdo->privOps;
if (wglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: wgl ops are null");
return JNI_FALSE;
}
if (wglInfo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: wgl config info is null");
return JNI_FALSE;
}
// create a scratch window
hwnd = WGLGC_CreateScratchWindow(wglInfo->screen);
if (hwnd == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: could not create scratch window");
return JNI_FALSE;
}
// get the HDC for the scratch window
hdc = GetDC(hwnd);
if (hdc == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: could not get dc for scratch window");
DestroyWindow(hwnd);
return JNI_FALSE;
}
// get the maximum allowable pbuffer dimensions
j2d_wglGetPixelFormatAttribivARB(hdc, wglInfo->pixfmt, 0, 2,
attrKeys, attrVals);
maxWidth = attrVals[0];
maxHeight = attrVals[1];
J2dTraceLn4(J2D_TRACE_VERBOSE,
" desired pbuffer dimensions: w=%d h=%d maxw=%d maxh=%d",
width, height, maxWidth, maxHeight);
// if either dimension is 0 or larger than the maximum, we cannot
// allocate a pbuffer with the requested dimensions
if (width == 0 || width > maxWidth ||
height == 0 || height > maxHeight)
{
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: invalid dimensions");
ReleaseDC(hwnd, hdc);
DestroyWindow(hwnd);
return JNI_FALSE;
}
pbuffer = j2d_wglCreatePbufferARB(hdc, wglInfo->pixfmt,
width, height, pbAttrList);
ReleaseDC(hwnd, hdc);
DestroyWindow(hwnd);
if (pbuffer == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: could not create wgl pbuffer");
return JNI_FALSE;
}
// note that we get the DC for the pbuffer at creation time, and then
// release the DC when the pbuffer is disposed; the WGL_ARB_pbuffer
// spec is vague about such things, but from past experience we know
// this approach to be more robust than, for example, doing a
// Get/ReleasePbufferDC() everytime we make a context current
pbufferDC = j2d_wglGetPbufferDCARB(pbuffer);
if (pbufferDC == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: could not get dc for pbuffer");
j2d_wglDestroyPbufferARB(pbuffer);
return JNI_FALSE;
}
// make sure the actual dimensions match those that we requested
j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_WIDTH_ARB, &actualWidth);
j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_HEIGHT_ARB, &actualHeight);
if (width != actualWidth || height != actualHeight) {
J2dRlsTraceLn2(J2D_TRACE_ERROR,
"WGLSurfaceData_initPbuffer: actual (w=%d h=%d) != requested",
actualWidth, actualHeight);
j2d_wglReleasePbufferDCARB(pbuffer, pbufferDC);
j2d_wglDestroyPbufferARB(pbuffer);
return JNI_FALSE;
}
oglsdo->drawableType = OGLSD_PBUFFER;
oglsdo->isOpaque = isOpaque;
oglsdo->width = width;
oglsdo->height = height;
wglsdo->pbuffer = pbuffer;
wglsdo->pbufferDC = pbufferDC;
OGLSD_SetNativeDimensions(env, oglsdo, width, height);
return JNI_TRUE;
}
/**
* Attempts to create a new GLXFBConfig for the requested screen and visual.
* If visualid is 0, this method will iterate through all GLXFBConfigs (if
* any) that match the requested attributes and will attempt to find an
* fbconfig with a minimal combined depth+stencil buffer. Note that we
* currently only need depth capabilities (for shape clipping purposes), but
* glXChooseFBConfig() will often return a list of fbconfigs with the largest
* depth buffer (and stencil) sizes at the top of the list. Therefore, we
* scan through the whole list to find the most VRAM-efficient fbconfig.
* If visualid is non-zero, the GLXFBConfig associated with the given visual
* is chosen (assuming it meets the requested attributes). If there are no
* valid GLXFBConfigs available, this method returns 0.
*/
static GLXFBConfig
GLXGC_InitFBConfig(JNIEnv *env, jint screennum, VisualID visualid)
{
GLXFBConfig *fbconfigs;
GLXFBConfig chosenConfig = 0;
int nconfs, i;
int attrlist[] = {GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT | GLX_PBUFFER_BIT,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_CONFIG_CAVEAT, GLX_NONE, // avoid "slow" configs
GLX_DEPTH_SIZE, 16, // anything >= 16 will work for us
0};
// this is the initial minimum value for the combined depth+stencil size
// (we initialize it to some absurdly high value; realistic values will
// be much less than this number)
int minDepthPlusStencil = 512;
J2dRlsTraceLn2(J2D_TRACE_INFO, "GLXGC_InitFBConfig: scn=%d vis=0x%x",
screennum, visualid);
// find all fbconfigs for this screen with the provided attributes
fbconfigs = j2d_glXChooseFBConfig(awt_display, screennum,
attrlist, &nconfs);
if ((fbconfigs == NULL) || (nconfs <= 0)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXGC_InitFBConfig: could not find any valid fbconfigs");
return 0;
}
J2dRlsTraceLn(J2D_TRACE_VERBOSE, " candidate fbconfigs:");
// iterate through the list of fbconfigs, looking for the one that matches
// the requested VisualID and supports RGBA rendering as well as the
// creation of windows and pbuffers
for (i = 0; i < nconfs; i++) {
XVisualInfo *xvi;
VisualID fbvisualid;
GLXFBConfig fbc = fbconfigs[i];
// get VisualID from GLXFBConfig
xvi = j2d_glXGetVisualFromFBConfig(awt_display, fbc);
if (xvi == NULL) {
continue;
}
fbvisualid = xvi->visualid;
XFree(xvi);
if (visualid == 0 || visualid == fbvisualid) {
int dtype, rtype, depth, stencil, db, alpha, gamma;
// get GLX-specific attributes from GLXFBConfig
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_DRAWABLE_TYPE, &dtype);
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_RENDER_TYPE, &rtype);
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_DEPTH_SIZE, &depth);
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_STENCIL_SIZE, &stencil);
// these attributes don't affect our decision, but they are
// interesting for trace logs, so we will query them anyway
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_DOUBLEBUFFER, &db);
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_ALPHA_SIZE, &alpha);
J2dRlsTrace5(J2D_TRACE_VERBOSE,
"[V] id=0x%x db=%d alpha=%d depth=%d stencil=%d valid=",
fbvisualid, db, alpha, depth, stencil);
#ifdef __sparc
/*
* Sun's OpenGL implementation will always
* return at least two GLXFBConfigs (visuals) from
* glXChooseFBConfig(). The first will be a linear (gamma
* corrected) visual; the second will have the same capabilities
* as the first, except it will be a non-linear (non-gamma
* corrected) visual, which is the one we want, otherwise
* everything will look "washed out". So we will reject any
* visuals that have gamma values other than 1.0 (the value
* returned by glXGetFBConfigAttrib() will be scaled
* by 100, so 100 corresponds to a gamma value of 1.0, 220
* corresponds to 2.2, and so on).
*/
j2d_glXGetFBConfigAttrib(awt_display, fbc,
GLX_GAMMA_VALUE_SUN, &gamma);
if (gamma != 100) {
J2dRlsTrace(J2D_TRACE_VERBOSE, "false (linear visual)\n");
continue;
}
#endif /* __sparc */
if ((dtype & GLX_WINDOW_BIT) &&
(dtype & GLX_PBUFFER_BIT) &&
(rtype & GLX_RGBA_BIT) &&
(depth >= 16))
{
if (visualid == 0) {
// when visualid == 0, we loop through all configs
// looking for an fbconfig that has the smallest combined
// depth+stencil size (this keeps VRAM usage to a minimum)
if ((depth + stencil) < minDepthPlusStencil) {
J2dRlsTrace(J2D_TRACE_VERBOSE, "true\n");
minDepthPlusStencil = depth + stencil;
chosenConfig = fbc;
} else {
J2dRlsTrace(J2D_TRACE_VERBOSE,
"false (large depth)\n");
}
continue;
} else {
// in this case, visualid == fbvisualid, which means
// we've found a valid fbconfig corresponding to the
// requested VisualID, so break out of the loop
J2dRlsTrace(J2D_TRACE_VERBOSE, "true\n");
chosenConfig = fbc;
break;
}
} else {
J2dRlsTrace(J2D_TRACE_VERBOSE, "false (bad match)\n");
}
}
}
// free the list of fbconfigs
XFree(fbconfigs);
if (chosenConfig == 0) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"GLXGC_InitFBConfig: could not find an appropriate fbconfig");
return 0;
}
return chosenConfig;
}
/**
* Initializes an OpenGL texture object.
*
* If the isOpaque parameter is JNI_FALSE, then the texture will have a
* full alpha channel; otherwise, the texture will be opaque (this can
* help save VRAM when translucency is not needed).
*
* If the GL_ARB_texture_non_power_of_two extension is present (texNonPow2
* is JNI_TRUE), the actual texture is allowed to have non-power-of-two
* dimensions, and therefore width==textureWidth and height==textureHeight.
*
* Failing that, if the GL_ARB_texture_rectangle extension is present
* (texRect is JNI_TRUE), the actual texture is allowed to have
* non-power-of-two dimensions, except that instead of using the usual
* GL_TEXTURE_2D target, we need to use the GL_TEXTURE_RECTANGLE_ARB target.
* Note that the GL_REPEAT wrapping mode is not allowed with this target,
* so if that mode is needed (e.g. as is the case in the TexturePaint code)
* one should pass JNI_FALSE to avoid using this extension. Also note that
* when the texture target is GL_TEXTURE_RECTANGLE_ARB, texture coordinates
* must be specified in the range [0,width] and [0,height] rather than
* [0,1] as is the case with the usual GL_TEXTURE_2D target (so take care)!
*
* Otherwise, the actual texture must have power-of-two dimensions, and
* therefore the textureWidth and textureHeight will be the next
* power-of-two greater than (or equal to) the requested width and height.
*/
static jboolean
OGLSD_InitTextureObject(OGLSDOps *oglsdo,
jboolean isOpaque,
jboolean texNonPow2, jboolean texRect,
jint width, jint height)
{
GLenum texTarget, texProxyTarget;
GLint format = isOpaque ? GL_RGB : GL_RGBA;
GLuint texID;
GLsizei texWidth, texHeight, realWidth, realHeight;
GLint texMax;
J2dTraceLn4(J2D_TRACE_INFO,
"OGLSD_InitTextureObject: w=%d h=%d opq=%d nonpow2=%d",
width, height, isOpaque, texNonPow2);
if (oglsdo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitTextureObject: ops are null");
return JNI_FALSE;
}
if (texNonPow2) {
// use non-pow2 dimensions with GL_TEXTURE_2D target
j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax);
texWidth = (width <= texMax) ? width : 0;
texHeight = (height <= texMax) ? height : 0;
texTarget = GL_TEXTURE_2D;
texProxyTarget = GL_PROXY_TEXTURE_2D;
} else if (texRect) {
// use non-pow2 dimensions with GL_TEXTURE_RECTANGLE_ARB target
j2d_glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &texMax);
texWidth = (width <= texMax) ? width : 0;
texHeight = (height <= texMax) ? height : 0;
texTarget = GL_TEXTURE_RECTANGLE_ARB;
texProxyTarget = GL_PROXY_TEXTURE_RECTANGLE_ARB;
} else {
// find the appropriate power-of-two dimensions
j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax);
texWidth = OGLSD_NextPowerOfTwo(width, texMax);
texHeight = OGLSD_NextPowerOfTwo(height, texMax);
texTarget = GL_TEXTURE_2D;
texProxyTarget = GL_PROXY_TEXTURE_2D;
}
J2dTraceLn3(J2D_TRACE_VERBOSE,
" desired texture dimensions: w=%d h=%d max=%d",
texWidth, texHeight, texMax);
// if either dimension is 0, we cannot allocate a texture with the
// requested dimensions
if ((texWidth == 0) || (texHeight == 0)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLSD_InitTextureObject: texture dimensions too large");
return JNI_FALSE;
}
// now use a proxy to determine whether we can create a texture with
// the calculated power-of-two dimensions and the given internal format
j2d_glTexImage2D(texProxyTarget, 0, format,
texWidth, texHeight, 0,
format, GL_UNSIGNED_BYTE, NULL);
j2d_glGetTexLevelParameteriv(texProxyTarget, 0,
GL_TEXTURE_WIDTH, &realWidth);
j2d_glGetTexLevelParameteriv(texProxyTarget, 0,
GL_TEXTURE_HEIGHT, &realHeight);
// if the requested dimensions and proxy dimensions don't match,
// we shouldn't attempt to create the texture
if ((realWidth != texWidth) || (realHeight != texHeight)) {
J2dRlsTraceLn2(J2D_TRACE_ERROR,
"OGLSD_InitTextureObject: actual (w=%d h=%d) != requested",
realWidth, realHeight);
return JNI_FALSE;
}
// initialize the texture with some dummy data (this allows us to create
// a texture object once with 2^n dimensions, and then use
// glTexSubImage2D() to provide further updates)
j2d_glGenTextures(1, &texID);
j2d_glBindTexture(texTarget, texID);
j2d_glTexImage2D(texTarget, 0, format,
texWidth, texHeight, 0,
format, GL_UNSIGNED_BYTE, NULL);
oglsdo->isOpaque = isOpaque;
oglsdo->xOffset = 0;
oglsdo->yOffset = 0;
oglsdo->width = width;
oglsdo->height = height;
oglsdo->textureID = texID;
oglsdo->textureWidth = texWidth;
oglsdo->textureHeight = texHeight;
oglsdo->textureTarget = texTarget;
OGLSD_INIT_TEXTURE_FILTER(oglsdo, GL_NEAREST);
OGLSD_RESET_TEXTURE_WRAP(texTarget);
J2dTraceLn3(J2D_TRACE_VERBOSE, " created texture: w=%d h=%d id=%d",
width, height, texID);
return JNI_TRUE;
}