HRESULT
D3DGlyphCache::Init(D3DContext *pCtx)
{
D3DFORMAT format;
RETURN_STATUS_IF_NULL(pCtx, E_FAIL);
J2dTraceLn1(J2D_TRACE_INFO, "D3DGlyphCache::Init pCtx=%x", pCtx);
this->pCtx = pCtx;
if (pGlyphCache == NULL) {
// init glyph cache data structure
pGlyphCache = AccelGlyphCache_Init(D3DTR_CACHE_WIDTH,
D3DTR_CACHE_HEIGHT,
D3DTR_CACHE_CELL_WIDTH,
D3DTR_CACHE_CELL_HEIGHT,
D3DGlyphCache_FlushGlyphVertexCache);
if (pGlyphCache == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"D3DGlyphCache::Init: "\
"could not init D3D glyph cache");
return E_FAIL;
}
}
if (gcType == CACHE_GRAY) {
format = pCtx->IsTextureFormatSupported(D3DFMT_A8) ?
D3DFMT_A8 : D3DFMT_A8R8G8B8;
} else { // gcType == CACHE_LCD
format = pCtx->IsTextureFormatSupported(D3DFMT_R8G8B8) ?
D3DFMT_R8G8B8 : D3DFMT_A8R8G8B8;
}
HRESULT res = pCtx->GetResourceManager()->
CreateTexture(D3DTR_CACHE_WIDTH, D3DTR_CACHE_HEIGHT,
FALSE/*isRTT*/, FALSE/*isOpaque*/, &format, 0/*usage*/,
&pGlyphCacheRes);
if (FAILED(res)) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"D3DGlyphCache::Init: "\
"could not create glyph cache texture");
}
return res;
}
/**
* Initializes the one glyph cache (texture and data structure).
* If lcdCache is JNI_TRUE, the texture will contain RGB data,
* otherwise we will simply store the grayscale/monochrome glyph images
* as intensity values (which work well with the GL_MODULATE function).
*/
static jboolean
OGLTR_InitGlyphCache(jboolean lcdCache)
{
GlyphCacheInfo *gcinfo;
GLclampf priority = 1.0f;
GLenum internalFormat = lcdCache ? GL_RGB8 : GL_INTENSITY8;
GLenum pixelFormat = lcdCache ? GL_RGB : GL_LUMINANCE;
J2dTraceLn(J2D_TRACE_INFO, "OGLTR_InitGlyphCache");
// init vertex cache (if it hasn't been already)
if (!OGLVertexCache_InitVertexCache()) {
return JNI_FALSE;
}
// init glyph cache data structure
gcinfo = AccelGlyphCache_Init(OGLTR_CACHE_WIDTH,
OGLTR_CACHE_HEIGHT,
OGLTR_CACHE_CELL_WIDTH,
OGLTR_CACHE_CELL_HEIGHT,
OGLVertexCache_FlushVertexCache);
if (gcinfo == NULL) {
J2dRlsTraceLn(J2D_TRACE_ERROR,
"OGLTR_InitGlyphCache: could not init OGL glyph cache");
return JNI_FALSE;
}
// init cache texture object
j2d_glGenTextures(1, &gcinfo->cacheID);
j2d_glBindTexture(GL_TEXTURE_2D, gcinfo->cacheID);
j2d_glPrioritizeTextures(1, &gcinfo->cacheID, &priority);
j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
j2d_glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
j2d_glTexImage2D(GL_TEXTURE_2D, 0, internalFormat,
OGLTR_CACHE_WIDTH, OGLTR_CACHE_HEIGHT, 0,
pixelFormat, GL_UNSIGNED_BYTE, NULL);
cacheStatus = (lcdCache ? CACHE_LCD : CACHE_GRAY);
glyphCache = gcinfo;
return JNI_TRUE;
}
