GrPathRenderer* GrAAHairLinePathRenderer::Create(GrContext* context) {
GrGpu* gpu = context->getGpu();
GrIndexBuffer* qIdxBuf = gpu->createIndexBuffer(kQuadIdxSBufize, false);
SkAutoTUnref<GrIndexBuffer> qIdxBuffer(qIdxBuf);
if (NULL == qIdxBuf || !push_quad_index_data(qIdxBuf)) {
return NULL;
}
GrIndexBuffer* lIdxBuf = gpu->createIndexBuffer(kLineSegIdxSBufize, false);
SkAutoTUnref<GrIndexBuffer> lIdxBuffer(lIdxBuf);
if (NULL == lIdxBuf || !push_line_index_data(lIdxBuf)) {
return NULL;
}
return SkNEW_ARGS(GrAAHairLinePathRenderer,
(context, lIdxBuf, qIdxBuf));
}
const GrIndexBuffer* GrGpu::getQuadIndexBuffer() const {
if (NULL == fQuadIndexBuffer) {
static const int SIZE = sizeof(uint16_t) * 6 * MAX_QUADS;
GrGpu* me = const_cast<GrGpu*>(this);
fQuadIndexBuffer = me->createIndexBuffer(SIZE, false);
if (NULL != fQuadIndexBuffer) {
uint16_t* indices = (uint16_t*)fQuadIndexBuffer->lock();
if (NULL != indices) {
fill_indices(indices, MAX_QUADS);
fQuadIndexBuffer->unlock();
} else {
indices = (uint16_t*)GrMalloc(SIZE);
fill_indices(indices, MAX_QUADS);
if (!fQuadIndexBuffer->updateData(indices, SIZE)) {
fQuadIndexBuffer->unref();
fQuadIndexBuffer = NULL;
GrCrash("Can't get indices into buffer!");
}
GrFree(indices);
}
}
}
return fQuadIndexBuffer;
}
GrIndexBuffer* GrGpu::createInstancedIndexBuffer(const uint16_t* pattern,
int patternSize,
int reps,
int vertCount,
bool isDynamic) {
size_t bufferSize = patternSize * reps * sizeof(uint16_t);
GrGpu* me = const_cast<GrGpu*>(this);
GrIndexBuffer* buffer = me->createIndexBuffer(bufferSize, isDynamic);
if (buffer) {
uint16_t* data = (uint16_t*) buffer->map();
bool useTempData = (NULL == data);
if (useTempData) {
data = SkNEW_ARRAY(uint16_t, reps * patternSize);
}
for (int i = 0; i < reps; ++i) {
int baseIdx = i * patternSize;
uint16_t baseVert = (uint16_t)(i * vertCount);
for (int j = 0; j < patternSize; ++j) {
data[baseIdx+j] = baseVert + pattern[j];
}
}
if (useTempData) {
if (!buffer->updateData(data, bufferSize)) {
SkFAIL("Can't get indices into buffer!");
}
SkDELETE_ARRAY(data);
} else {
buffer->unmap();
}
}
return buffer;
}
const GrIndexBuffer* GrGpu::getQuadIndexBuffer() const {
if (NULL == fQuadIndexBuffer || fQuadIndexBuffer->wasDestroyed()) {
SkSafeUnref(fQuadIndexBuffer);
static const int SIZE = sizeof(uint16_t) * 6 * MAX_QUADS;
GrGpu* me = const_cast<GrGpu*>(this);
fQuadIndexBuffer = me->createIndexBuffer(SIZE, false);
if (fQuadIndexBuffer) {
uint16_t* indices = (uint16_t*)fQuadIndexBuffer->map();
if (indices) {
fill_indices(indices, MAX_QUADS);
fQuadIndexBuffer->unmap();
} else {
indices = (uint16_t*)sk_malloc_throw(SIZE);
fill_indices(indices, MAX_QUADS);
if (!fQuadIndexBuffer->updateData(indices, SIZE)) {
fQuadIndexBuffer->unref();
fQuadIndexBuffer = NULL;
SkFAIL("Can't get indices into buffer!");
}
sk_free(indices);
}
}
}
return fQuadIndexBuffer;
}
GrPathRenderer* GrAAHairLinePathRenderer::Create(GrContext* context) {
const GrIndexBuffer* lIdxBuffer = context->getQuadIndexBuffer();
if (NULL == lIdxBuffer) {
return NULL;
}
GrGpu* gpu = context->getGpu();
GrIndexBuffer* qIdxBuf = gpu->createIndexBuffer(kQuadIdxSBufize, false);
SkAutoTUnref<GrIndexBuffer> qIdxBuffer(qIdxBuf);
if (NULL == qIdxBuf ||
!push_quad_index_data(qIdxBuf)) {
return NULL;
}
return new GrAAHairLinePathRenderer(context,
lIdxBuffer,
qIdxBuf);
}