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don't render invalid last context on first frame

This commit is contained in:
Anthony Pesch 2015-09-12 00:34:11 -07:00
parent 3504d313e0
commit fcbb3cb043
1 changed files with 9 additions and 1 deletions
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10
src/hw/holly/tile_accelerator.cc
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@ -275,7 +275,7 @@ TileAccelerator::TileAccelerator(Dreamcast *dc)
: dc_(dc),
texcache_(dc_),
tile_renderer_(texcache_),
last_context_(&scratch_context_) {}
last_context_(nullptr) {}
TileAccelerator::~TileAccelerator() {
while (contexts_.size()) {
@ -359,6 +359,10 @@ void TileAccelerator::WriteContext(uint32_t addr, uint32_t value) {
}
void TileAccelerator::SaveLastContext(uint32_t addr) {
if (!last_context_) {
last_context_ = &scratch_context_;
}
// swap context with last context to be delayed rendered
auto it = FindContext(addr);
TileContext *tmp = last_context_;
@ -376,6 +380,10 @@ void TileAccelerator::SaveLastContext(uint32_t addr) {
}
void TileAccelerator::RenderLastContext() {
if (!last_context_) {
return;
}
tile_renderer_.RenderContext(last_context_, dc_->rb());
// add render to trace