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GSP: Update framebuffer information when necessary.

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This commit is contained in:
Tony Wasserka 2014-08-19 20:57:43 +02:00
parent 590c206ac8
commit 14b24a75b3
2 changed files with 41 additions and 2 deletions
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25
src/core/hle/service/gsp.cpp
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@ -36,6 +36,17 @@ static inline u8* GetCommandBuffer(u32 thread_id) {
0x800 + (thread_id * sizeof(CommandBuffer)));
}
static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index) {
if (0 == g_shared_memory)
return nullptr;
_dbg_assert_msg_(GSP, screen_index < 2, "Invalid screen index");
// For each thread there are two FrameBufferUpdate fields
u32 offset = 0x200 + (2 * thread_id + screen_index) * sizeof(FrameBufferUpdate);
return (FrameBufferUpdate*)Kernel::GetSharedMemoryPointer(g_shared_memory, offset);
}
/// Gets a pointer to the interrupt relay queue for a given thread index
static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
return (InterruptRelayQueue*)Kernel::GetSharedMemoryPointer(g_shared_memory,
@ -166,6 +177,7 @@ void RegisterInterruptRelayQueue(Service::Interface* self) {
/**
* Signals that the specified interrupt type has occurred to userland code
* @param interrupt_id ID of interrupt that is being signalled
* @todo This should probably take a thread_id parameter and only signal this thread?
*/
void SignalInterrupt(InterruptId interrupt_id) {
if (0 == g_interrupt_event) {
@ -191,7 +203,7 @@ void SignalInterrupt(InterruptId interrupt_id) {
}
/// Executes the next GSP command
void ExecuteCommand(const Command& command) {
void ExecuteCommand(const Command& command, u32 thread_id) {
// Utility function to convert register ID to address
auto WriteGPURegister = [](u32 id, u32 data) {
GPU::Write<u32>(0x1EF00000 + 4 * id, data);
@ -262,6 +274,15 @@ void ExecuteCommand(const Command& command) {
SignalInterrupt(InterruptId::PPF);
SignalInterrupt(InterruptId::P3D);
SignalInterrupt(InterruptId::DMA);
// Update framebuffer information if requested
for (int screen_id = 0; screen_id < 2; ++screen_id) {
FrameBufferUpdate* info = GetFrameBufferInfo(thread_id, screen_id);
if (info->is_dirty)
SetBufferSwap(screen_id, info->framebuffer_info[info->index]);
info->is_dirty = false;
}
break;
}
@ -304,7 +325,7 @@ void TriggerCmdReqQueue(Service::Interface* self) {
g_debugger.GXCommandProcessed((u8*)&command_buffer->commands[i]);
// Decode and execute command
ExecuteCommand(command_buffer->commands[i]);
ExecuteCommand(command_buffer->commands[i], thread_id);
// Indicates that command has completed
command_buffer->number_commands = command_buffer->number_commands - 1;

18
src/core/hle/service/gsp.h
View file

@ -4,6 +4,8 @@
#pragma once
#include <cstddef>
#include "common/bit_field.h"
#include "core/hle/service/service.h"
@ -76,6 +78,22 @@ struct FrameBufferInfo {
};
static_assert(sizeof(FrameBufferInfo) == 0x1c, "Struct has incorrect size");
struct FrameBufferUpdate {
BitField<0, 1, u8> index; // Index used for GSP::SetBufferSwap
BitField<0, 1, u8> is_dirty; // true if GSP should update GPU framebuffer registers
u16 pad1;
FrameBufferInfo framebuffer_info[2];
u32 pad2;
};
static_assert(sizeof(FrameBufferUpdate) == 0x40, "Struct has incorrect size");
// TODO: Not sure if this padding is correct.
// Chances are the second block is stored at offset 0x24 rather than 0x20.
#ifndef _MSC_VER
static_assert(offsetof(FrameBufferUpdate, framebuffer_info[1]) == 0x20, "FrameBufferInfo element has incorrect alignment");
#endif
/// GSP command
struct Command {
BitField<0, 8, CommandId> id;