From 5fb4c718cc831c31fb1e049aa015df7576f7e0f8 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Sun, 4 Mar 2018 19:13:15 -0500
Subject: [PATCH] GPU: Intercept writes to the VERTEX_END_GL register.
This is the register that gets written after a game calls DrawArrays().
We should collect all GPU state and draw using our graphics API here.
---
src/video_core/engines/maxwell_3d.cpp | 9 +++++++++
src/video_core/engines/maxwell_3d.h | 10 +++++++++-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp
index 9f699399fc..842c5a014a 100644
--- a/src/video_core/engines/maxwell_3d.cpp
+++ b/src/video_core/engines/maxwell_3d.cpp
@@ -19,6 +19,10 @@ void Maxwell3D::WriteReg(u32 method, u32 value) {
#define MAXWELL3D_REG_INDEX(field_name) (offsetof(Regs, field_name) / sizeof(u32))
switch (method) {
+ case MAXWELL3D_REG_INDEX(draw.vertex_end_gl): {
+ DrawArrays();
+ break;
+ }
case MAXWELL3D_REG_INDEX(query.query_get): {
ProcessQueryGet();
break;
@@ -47,5 +51,10 @@ void Maxwell3D::ProcessQueryGet() {
UNIMPLEMENTED_MSG("Query mode %u not implemented", regs.query.query_get.mode.Value());
}
}
+
+void Maxwell3D::DrawArrays() {
+ LOG_WARNING(HW_GPU, "Game requested a DrawArrays, ignoring");
+}
+
} // namespace Engines
} // namespace Tegra
diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h
index 1eeef68570..93f7698a07 100644
--- a/src/video_core/engines/maxwell_3d.h
+++ b/src/video_core/engines/maxwell_3d.h
@@ -32,7 +32,12 @@ public:
union {
struct {
- INSERT_PADDING_WORDS(0x6C0);
+ INSERT_PADDING_WORDS(0x585);
+ struct {
+ u32 vertex_end_gl;
+ u32 vertex_begin_gl;
+ } draw;
+ INSERT_PADDING_WORDS(0x139);
struct {
u32 query_address_high;
u32 query_address_low;
@@ -61,6 +66,9 @@ private:
/// Handles a write to the QUERY_GET register.
void ProcessQueryGet();
+ /// Handles a write to the VERTEX_END_GL register, triggering a draw.
+ void DrawArrays();
+
MemoryManager& memory_manager;
};