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GPU: Added a function to retrieve the active textures for a shader stage. 

TODO: A shader may not use all of these textures at the same time, shader analysis should be performed to determine which textures are actually sampled.
This commit is contained in:
Subv 2018-03-23 18:56:27 -05:00
parent 39e60cfeb1
commit 2c785bd06c
2 changed files with 59 additions and 50 deletions
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93
src/video_core/engines/maxwell_3d.cpp
View File

@ -174,53 +174,13 @@ void Maxwell3D::ProcessQueryGet() {
void Maxwell3D::DrawArrays() {
LOG_WARNING(HW_GPU, "Game requested a DrawArrays, ignoring");
if (Tegra::g_debug_context) {
Tegra::g_debug_context->OnEvent(Tegra::DebugContext::Event::IncomingPrimitiveBatch, nullptr);
}
auto& fragment_shader = state.shader_stages[static_cast<size_t>(Regs::ShaderStage::Fragment)];
auto& tex_info_buffer = fragment_shader.const_buffers[regs.tex_cb_index];
ASSERT(tex_info_buffer.enabled && tex_info_buffer.address != 0);
GPUVAddr tic_base_address = regs.tic.TICAddress();
GPUVAddr tex_info_buffer_end = tex_info_buffer.address + tex_info_buffer.size;
for (GPUVAddr current_texture = tex_info_buffer.address + 0x20;
current_texture < tex_info_buffer_end; current_texture += 4) {
Texture::TextureHandle tex_info{
Memory::Read32(memory_manager.PhysicalToVirtualAddress(current_texture))};
if (tex_info.tic_id != 0 || tex_info.tsc_id != 0) {
GPUVAddr tic_address_gpu =
tic_base_address + tex_info.tic_id * sizeof(Texture::TICEntry);
VAddr tic_address_cpu = memory_manager.PhysicalToVirtualAddress(tic_address_gpu);
Texture::TICEntry tic_entry;
Memory::ReadBlock(tic_address_cpu, &tic_entry, sizeof(Texture::TICEntry));
auto r_type = tic_entry.r_type.Value();
auto g_type = tic_entry.g_type.Value();
auto b_type = tic_entry.b_type.Value();
auto a_type = tic_entry.a_type.Value();
// TODO(Subv): Different data types for separate components are not supported
ASSERT(r_type == g_type && r_type == b_type && r_type == a_type);
auto format = tic_entry.format.Value();
auto texture = Texture::UnswizzleTexture(
memory_manager.PhysicalToVirtualAddress(tic_entry.Address()),
tic_entry.format.Value(), tic_entry.Width(), tic_entry.Height());
LOG_CRITICAL(HW_GPU,
"Fragment shader using texture TIC %08X TSC %08X at address %016" PRIX64,
tex_info.tic_id.Value(), tex_info.tsc_id.Value(), tic_entry.Address());
}
Tegra::g_debug_context->OnEvent(Tegra::DebugContext::Event::IncomingPrimitiveBatch,
nullptr);
}
if (Tegra::g_debug_context) {
Tegra::g_debug_context->OnEvent(Tegra::DebugContext::Event::FinishedPrimitiveBatch, nullptr);
Tegra::g_debug_context->OnEvent(Tegra::DebugContext::Event::FinishedPrimitiveBatch,
nullptr);
}
}
@ -332,5 +292,50 @@ void Maxwell3D::ProcessCBData(u32 value) {
regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4;
}
std::vector<Texture::TICEntry> Maxwell3D::GetStageTextures(Regs::ShaderStage stage) {
std::vector<Texture::TICEntry> textures;
auto& fragment_shader = state.shader_stages[static_cast<size_t>(stage)];
auto& tex_info_buffer = fragment_shader.const_buffers[regs.tex_cb_index];
ASSERT(tex_info_buffer.enabled && tex_info_buffer.address != 0);
GPUVAddr tic_base_address = regs.tic.TICAddress();
GPUVAddr tex_info_buffer_end = tex_info_buffer.address + tex_info_buffer.size;
// Offset into the texture constbuffer where the texture info begins.
static constexpr size_t TextureInfoOffset = 0x20;
for (GPUVAddr current_texture = tex_info_buffer.address + TextureInfoOffset;
current_texture < tex_info_buffer_end; current_texture += 4) {
Texture::TextureHandle tex_info{
Memory::Read32(memory_manager.PhysicalToVirtualAddress(current_texture))};
if (tex_info.tic_id != 0 || tex_info.tsc_id != 0) {
GPUVAddr tic_address_gpu =
tic_base_address + tex_info.tic_id * sizeof(Texture::TICEntry);
VAddr tic_address_cpu = memory_manager.PhysicalToVirtualAddress(tic_address_gpu);
Texture::TICEntry tic_entry;
Memory::ReadBlock(tic_address_cpu, &tic_entry, sizeof(Texture::TICEntry));
auto r_type = tic_entry.r_type.Value();
auto g_type = tic_entry.g_type.Value();
auto b_type = tic_entry.b_type.Value();
auto a_type = tic_entry.a_type.Value();
// TODO(Subv): Different data types for separate components are not supported
ASSERT(r_type == g_type && r_type == b_type && r_type == a_type);
auto format = tic_entry.format.Value();
textures.push_back(tic_entry);
}
}
return textures;
}
} // namespace Engines
} // namespace Tegra

16
src/video_core/engines/maxwell_3d.h
View File

@ -12,6 +12,7 @@
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "video_core/memory_manager.h"
#include "video_core/textures/texture.h"
namespace Tegra {
namespace Engines {
@ -21,12 +22,6 @@ public:
explicit Maxwell3D(MemoryManager& memory_manager);
~Maxwell3D() = default;
/// Write the value to the register identified by method.
void WriteReg(u32 method, u32 value, u32 remaining_params);
/// Uploads the code for a GPU macro program associated with the specified entry.
void SubmitMacroCode(u32 entry, std::vector<u32> code);
/// Register structure of the Maxwell3D engine.
/// TODO(Subv): This structure will need to be made bigger as more registers are discovered.
struct Regs {
@ -430,6 +425,15 @@ public:
State state{};
/// Write the value to the register identified by method.
void WriteReg(u32 method, u32 value, u32 remaining_params);
/// Uploads the code for a GPU macro program associated with the specified entry.
void SubmitMacroCode(u32 entry, std::vector<u32> code);
/// Returns a list of enabled textures for the specified shader stage.
std::vector<Texture::TICEntry> GetStageTextures(Regs::ShaderStage stage);
private:
MemoryManager& memory_manager;