Method FlushPrim

pcsx2/GS/GSState.cpp:2492–2679

}

void GSState::FlushPrim()
{
	if (m_index->tail > 0)
	{
		GL_REG("FlushPrim ctxt %d", PRIM->CTXT);

		// clear texture cache flushed flag, since we're reading from it
		m_texflush_flag = PRIM->TME ? false : m_texflush_flag;

		// internal frame rate detection based on sprite blits to the display framebuffer
		{
			const u32 FRAME_FBP = m_context->FRAME.FBP;
			if ((m_regs->DISP[0].DISPFB.FBP == FRAME_FBP && m_regs->PMODE.EN1) ||
				(m_regs->DISP[1].DISPFB.FBP == FRAME_FBP && m_regs->PMODE.EN2))
			{
				g_perfmon.AddDisplayFramebufferSpriteBlit();
			}
		}

		GSVertex buff[2];
		s_n++;

		const u32 head = m_vertex->head;
		const u32 tail = m_vertex->tail;
		const u32 next = m_vertex->next;
		u32 unused = 0;

		if (tail > head)
		{
			switch (PRIM->PRIM)
			{
				case GS_POINTLIST:
					pxAssert(0);
					break;
				case GS_LINELIST:
				case GS_LINESTRIP:
				case GS_SPRITE:
					unused = 1;
					buff[0] = m_vertex->buff[tail - 1];
					break;
				case GS_TRIANGLELIST:
				case GS_TRIANGLESTRIP:
					unused = std::min<u32>(tail - head, 2);
					memcpy(buff, &m_vertex->buff[tail - unused], sizeof(GSVertex) * 2);
					break;
				case GS_TRIANGLEFAN:
					buff[0] = m_vertex->buff[head];
					unused = 1;
					if (tail - 1 > head)
					{
						buff[1] = m_vertex->buff[tail - 1];
						unused = 2;
					}
					break;
				case GS_INVALID:
					break;
				default:
					ASSUME(0);