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-rw-r--r--src/video_core/renderer_opengl/gl_rasterizer.cpp11
-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp77
-rw-r--r--src/video_core/renderer_opengl/gl_shader_gen.h18
3 files changed, 84 insertions, 22 deletions
diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 0a33868b7..30be38dd4 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -654,7 +654,16 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, GLuint progr
buffer_draw_state.bindpoint = current_bindpoint + bindpoint;
boost::optional<VAddr> addr = gpu.memory_manager->GpuToCpuAddress(buffer.address);
- std::vector<u8> data(used_buffer.GetSize() * sizeof(float));
+
+ std::vector<u8> data;
+ if (used_buffer.IsIndirect()) {
+ // Buffer is accessed indirectly, so upload the entire thing
+ data.resize(buffer.size * sizeof(float));
+ } else {
+ // Buffer is accessed directly, upload just what we use
+ data.resize(used_buffer.GetSize() * sizeof(float));
+ }
+
Memory::ReadBlock(*addr, data.data(), data.size());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, buffer_draw_state.ssbo);
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 7a59ecccf..a703b9151 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -20,7 +20,6 @@ using Tegra::Shader::OpCode;
using Tegra::Shader::Register;
using Tegra::Shader::Sampler;
using Tegra::Shader::SubOp;
-using Tegra::Shader::Uniform;
constexpr u32 PROGRAM_END = MAX_PROGRAM_CODE_LENGTH;
@@ -365,11 +364,9 @@ public:
}
/// Generates code representing a uniform (C buffer) register, interpreted as the input type.
- std::string GetUniform(const Uniform& uniform, GLSLRegister::Type type) {
- declr_const_buffers[uniform.index].MarkAsUsed(static_cast<unsigned>(uniform.index),
- static_cast<unsigned>(uniform.offset), stage);
- std::string value =
- 'c' + std::to_string(uniform.index) + '[' + std::to_string(uniform.offset) + ']';
+ std::string GetUniform(u64 index, u64 offset, GLSLRegister::Type type) {
+ declr_const_buffers[index].MarkAsUsed(index, offset, stage);
+ std::string value = 'c' + std::to_string(index) + '[' + std::to_string(offset) + ']';
if (type == GLSLRegister::Type::Float) {
return value;
@@ -380,10 +377,19 @@ public:
}
}
- /// Generates code representing a uniform (C buffer) register, interpreted as the type of the
- /// destination register.
- std::string GetUniform(const Uniform& uniform, const Register& dest_reg) {
- return GetUniform(uniform, regs[dest_reg].GetActiveType());
+ std::string GetUniformIndirect(u64 index, s64 offset, const Register& index_reg,
+ GLSLRegister::Type type) {
+ declr_const_buffers[index].MarkAsUsedIndirect(index, stage);
+ std::string value = 'c' + std::to_string(index) + "[(floatBitsToInt(" +
+ GetRegister(index_reg, 0) + ") + " + std::to_string(offset) + ") / 4]";
+
+ if (type == GLSLRegister::Type::Float) {
+ return value;
+ } else if (type == GLSLRegister::Type::Integer) {
+ return "floatBitsToInt(" + value + ')';
+ } else {
+ UNREACHABLE();
+ }
}
/// Add declarations for registers
@@ -747,7 +753,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsFloat(instr.gpr20);
} else {
- op_b += regs.GetUniform(instr.uniform, instr.gpr0);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Float);
}
}
@@ -904,7 +911,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsInteger(instr.gpr20);
} else {
- op_b += regs.GetUniform(instr.uniform, GLSLRegister::Type::Integer);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Integer);
}
}
@@ -936,7 +944,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsInteger(instr.gpr20);
} else {
- op_b += regs.GetUniform(instr.uniform, GLSLRegister::Type::Integer);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Integer);
}
}
@@ -953,7 +962,8 @@ private:
switch (opcode->GetId()) {
case OpCode::Id::FFMA_CR: {
- op_b += regs.GetUniform(instr.uniform, instr.gpr0);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Float);
op_c += regs.GetRegisterAsFloat(instr.gpr39);
break;
}
@@ -964,7 +974,8 @@ private:
}
case OpCode::Id::FFMA_RC: {
op_b += regs.GetRegisterAsFloat(instr.gpr39);
- op_c += regs.GetUniform(instr.uniform, instr.gpr0);
+ op_c += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Float);
break;
}
case OpCode::Id::FFMA_IMM: {
@@ -1079,6 +1090,33 @@ private:
attribute);
break;
}
+ case OpCode::Id::LD_C: {
+ ASSERT_MSG(instr.ld_c.unknown == 0, "Unimplemented");
+
+ std::string op_a =
+ regs.GetUniformIndirect(instr.cbuf36.index, instr.cbuf36.offset + 0, instr.gpr8,
+ GLSLRegister::Type::Float);
+ std::string op_b =
+ regs.GetUniformIndirect(instr.cbuf36.index, instr.cbuf36.offset + 4, instr.gpr8,
+ GLSLRegister::Type::Float);
+
+ switch (instr.ld_c.type.Value()) {
+ case Tegra::Shader::UniformType::Single:
+ regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
+ break;
+
+ case Tegra::Shader::UniformType::Double:
+ regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
+ regs.SetRegisterToFloat(instr.gpr0.Value() + 1, 0, op_b, 1, 1);
+ break;
+
+ default:
+ NGLOG_CRITICAL(HW_GPU, "Unhandled type: {}",
+ static_cast<unsigned>(instr.ld_c.type.Value()));
+ UNREACHABLE();
+ }
+ break;
+ }
case OpCode::Id::ST_A: {
ASSERT_MSG(instr.attribute.fmt20.size == 0, "untested");
regs.SetOutputAttributeToRegister(attribute, instr.attribute.fmt20.element,
@@ -1175,7 +1213,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsFloat(instr.gpr20);
} else {
- op_b += regs.GetUniform(instr.uniform, GLSLRegister::Type::Float);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Float);
}
}
@@ -1216,7 +1255,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsInteger(instr.gpr20, 0, instr.isetp.is_signed);
} else {
- op_b += regs.GetUniform(instr.uniform, GLSLRegister::Type::Integer);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Integer);
}
using Tegra::Shader::Pred;
@@ -1262,7 +1302,8 @@ private:
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsFloat(instr.gpr20);
} else {
- op_b += regs.GetUniform(instr.uniform, GLSLRegister::Type::Float);
+ op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
+ GLSLRegister::Type::Float);
}
}
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.h b/src/video_core/renderer_opengl/gl_shader_gen.h
index 458032b5c..ad795610c 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.h
+++ b/src/video_core/renderer_opengl/gl_shader_gen.h
@@ -22,17 +22,28 @@ class ConstBufferEntry {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
public:
- void MarkAsUsed(unsigned index, unsigned offset, Maxwell::ShaderStage stage) {
+ void MarkAsUsed(u64 index, u64 offset, Maxwell::ShaderStage stage) {
is_used = true;
- this->index = index;
+ this->index = static_cast<unsigned>(index);
+ this->stage = stage;
+ max_offset = std::max(max_offset, static_cast<unsigned>(offset));
+ }
+
+ void MarkAsUsedIndirect(u64 index, Maxwell::ShaderStage stage) {
+ is_used = true;
+ is_indirect = true;
+ this->index = static_cast<unsigned>(index);
this->stage = stage;
- max_offset = std::max(max_offset, offset);
}
bool IsUsed() const {
return is_used;
}
+ bool IsIndirect() const {
+ return is_indirect;
+ }
+
unsigned GetIndex() const {
return index;
}
@@ -51,6 +62,7 @@ private:
};
bool is_used{};
+ bool is_indirect{};
unsigned index{};
unsigned max_offset{};
Maxwell::ShaderStage stage;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-10 11:11:49 +0000