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GSP: Implement SetBufferSwap.
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@ -105,6 +105,40 @@ void ReadHWRegs(Service::Interface* self) {
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}
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}
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void SetBufferSwap(u32 screen_id, const FrameBufferInfo& info) {
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u32 base_address = 0x400000;
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if (info.active_fb == 0) {
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].address_left1), 4, &info.address_left);
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].address_right1), 4, &info.address_right);
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} else {
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].address_left2), 4, &info.address_left);
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].address_right2), 4, &info.address_right);
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}
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].stride), 4, &info.stride);
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].color_format), 4, &info.format);
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WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].active_fb), 4, &info.shown_fb);
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}
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/**
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* GSP_GPU::SetBufferSwap service function
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*
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* Updates GPU display framebuffer configuration using the specified parameters.
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*
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* Inputs:
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* 1 : Screen ID (0 = top screen, 1 = bottom screen)
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* 2-7 : FrameBufferInfo structure
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* Outputs:
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* 1: Result code
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*/
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void SetBufferSwap(Service::Interface* self) {
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u32* cmd_buff = Service::GetCommandBuffer();
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u32 screen_id = cmd_buff[1];
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FrameBufferInfo* fb_info = (FrameBufferInfo*)&cmd_buff[2];
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SetBufferSwap(screen_id, *fb_info);
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cmd_buff[1] = 0; // No error
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}
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/**
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* GSP_GPU::RegisterInterruptRelayQueue service function
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* Inputs:
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@ -283,7 +317,7 @@ const Interface::FunctionInfo FunctionTable[] = {
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{0x00020084, nullptr, "WriteHWRegsWithMask"},
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{0x00030082, nullptr, "WriteHWRegRepeat"},
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{0x00040080, ReadHWRegs, "ReadHWRegs"},
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{0x00050200, nullptr, "SetBufferSwap"},
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{0x00050200, SetBufferSwap, "SetBufferSwap"},
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{0x00060082, nullptr, "SetCommandList"},
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{0x000700C2, nullptr, "RequestDma"},
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{0x00080082, nullptr, "FlushDataCache"},
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@ -64,6 +64,18 @@ struct InterruptRelayQueue {
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static_assert(sizeof(InterruptRelayQueue) == 0x40,
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"InterruptRelayQueue struct has incorrect size");
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struct FrameBufferInfo {
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BitField<0, 1, u32> active_fb; // 0 = first, 1 = second
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u32 address_left;
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u32 address_right;
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u32 stride; // maps to 0x1EF00X90 ?
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u32 format; // maps to 0x1EF00X70 ?
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u32 shown_fb; // maps to 0x1EF00X78 ?
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u32 unknown;
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};
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static_assert(sizeof(FrameBufferInfo) == 0x1c, "Struct has incorrect size");
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/// GSP command
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struct Command {
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BitField<0, 8, CommandId> id;
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