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GPU: Preliminary work for texture decoding.

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This commit is contained in:
Subv 2018-03-19 18:00:29 -05:00
parent 46945b5c96
commit 71ebc3e90d
5 changed files with 139 additions and 0 deletions
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45
src/video_core/engines/maxwell_3d.cpp
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@ -2,8 +2,11 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cinttypes>
#include "common/assert.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/textures/decoders.h"
#include "video_core/textures/texture.h"
namespace Tegra {
namespace Engines {
@ -160,6 +163,48 @@ void Maxwell3D::ProcessQueryGet() {
void Maxwell3D::DrawArrays() {
LOG_WARNING(HW_GPU, "Game requested a DrawArrays, ignoring");
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::DecodeTexture(
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());
}
}
}
void Maxwell3D::BindTextureInfoBuffer(const std::vector<u32>& parameters) {