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Refactor Buffer internals.

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Allows buffers created with love.graphics.newBuffer to only allocate VRAM data. Previously they had a copy of their contents in RAM.
Also makes it easier to implement Buffers in other graphics APIs and to implement more types of Buffers in the future.
This commit is contained in:
Alex Szpakowski
2020-12-22 19:23:02 -04:00
parent a1861a8ff4
commit 1f9d98263d
23 changed files with 504 additions and 523 deletions
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src/modules/graphics/wrap_Buffer.cpp
+3 -16
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@@ -186,13 +186,6 @@ Buffer *luax_checkbuffer(lua_State *L, int idx)
return luax_checktype<Buffer>(L, idx);
}
static int w_Buffer_flush(lua_State *L)
{
Buffer *t = luax_checkbuffer(L, 1);
t->unmap();
return 0;
}
static int w_Buffer_setArrayData(lua_State *L)
{
Buffer *t = luax_checkbuffer(L, 1);
@@ -223,12 +216,8 @@ static int w_Buffer_setArrayData(lua_State *L)
return luaL_error(L, "Too many array elements (expected at most %d, got %d)", arraylength - startindex, count);
size_t datasize = std::min(d->getSize(), count * stride);
char *bytedata = (char *) t->map() + offset;
memcpy(bytedata, d->getData(), datasize);
t->setMappedRangeModified(offset, datasize);
t->unmap();
t->fill(offset, datasize, d->getData());
return 0;
}
@@ -256,7 +245,7 @@ static int w_Buffer_setArrayData(lua_State *L)
if (startindex + count > arraylength)
return luaL_error(L, "Too many array elements (expected at most %d, got %d)", arraylength - startindex, count);
char *data = (char *) t->map() + offset;
char *data = (char *) t->map(Buffer::MAP_WRITE_INVALIDATE, offset, count * stride);
if (tableoftables)
{
@@ -303,8 +292,7 @@ static int w_Buffer_setArrayData(lua_State *L)
}
}
t->setMappedRangeModified(offset, count * stride);
t->unmap();
t->unmap(offset, count * stride);
return 0;
}
@@ -376,7 +364,6 @@ static int w_Buffer_isBufferType(lua_State *L)
static const luaL_Reg w_Buffer_functions[] =
{
{ "flush", w_Buffer_flush },
{ "setArrayData", w_Buffer_setArrayData },
{ "getElementCount", w_Buffer_getElementCount },
{ "getElementStride", w_Buffer_getElementStride },