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251 lines
12 KiB
251 lines
12 KiB
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/settings.h"
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#include "video_core/dirty_flags.h"
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/rasterizer_interface.h"
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namespace Tegra::Engines {
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void Maxwell3D::DrawManager::ProcessMethodCall(Maxwell3D& maxwell3d, u32 method, u32 argument) {
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switch (method) {
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case MAXWELL3D_REG_INDEX(clear_surface):
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return Clear(maxwell3d, 1);
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case MAXWELL3D_REG_INDEX(draw.begin):
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return DrawBegin(maxwell3d);
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case MAXWELL3D_REG_INDEX(draw.end):
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return DrawEnd(maxwell3d);
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case MAXWELL3D_REG_INDEX(vertex_buffer.first):
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case MAXWELL3D_REG_INDEX(vertex_buffer.count):
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case MAXWELL3D_REG_INDEX(index_buffer.first):
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break;
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case MAXWELL3D_REG_INDEX(index_buffer.count):
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draw_state.draw_indexed = true;
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break;
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case MAXWELL3D_REG_INDEX(index_buffer32_subsequent):
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case MAXWELL3D_REG_INDEX(index_buffer16_subsequent):
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case MAXWELL3D_REG_INDEX(index_buffer8_subsequent):
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draw_state.instance_count++;
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[[fallthrough]];
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case MAXWELL3D_REG_INDEX(index_buffer32_first):
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case MAXWELL3D_REG_INDEX(index_buffer16_first):
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case MAXWELL3D_REG_INDEX(index_buffer8_first):
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return DrawIndexSmall(maxwell3d, argument);
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case MAXWELL3D_REG_INDEX(draw_inline_index):
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SetInlineIndexBuffer(maxwell3d, argument);
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break;
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case MAXWELL3D_REG_INDEX(inline_index_2x16.even):
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_2x16.even);
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_2x16.odd);
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break;
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case MAXWELL3D_REG_INDEX(inline_index_4x8.index0):
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_4x8.index0);
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_4x8.index1);
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_4x8.index2);
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SetInlineIndexBuffer(maxwell3d, maxwell3d.regs.inline_index_4x8.index3);
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break;
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case MAXWELL3D_REG_INDEX(vertex_array_instance_first):
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DrawArrayInstanced(maxwell3d, maxwell3d.regs.vertex_array_instance_first.topology.Value(), maxwell3d.regs.vertex_array_instance_first.start.Value(), maxwell3d.regs.vertex_array_instance_first.count.Value(), false);
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break;
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case MAXWELL3D_REG_INDEX(vertex_array_instance_subsequent): {
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DrawArrayInstanced(maxwell3d, maxwell3d.regs.vertex_array_instance_subsequent.topology.Value(), maxwell3d.regs.vertex_array_instance_subsequent.start.Value(), maxwell3d.regs.vertex_array_instance_subsequent.count.Value(), true);
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break;
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}
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case MAXWELL3D_REG_INDEX(draw_texture.src_y0): {
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DrawTexture(maxwell3d);
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break;
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}
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default:
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break;
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}
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}
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void Maxwell3D::DrawManager::Clear(Maxwell3D& maxwell3d, u32 layer_count) {
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if (maxwell3d.ShouldExecute()) {
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maxwell3d.rasterizer->Clear(layer_count);
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}
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}
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void Maxwell3D::DrawManager::DrawDeferred(Maxwell3D& maxwell3d) {
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if (draw_state.draw_mode != DrawMode::Instance || draw_state.instance_count == 0) {
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return;
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}
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DrawEnd(maxwell3d, draw_state.instance_count + 1, true);
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draw_state.instance_count = 0;
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}
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void Maxwell3D::DrawManager::DrawArray(Maxwell3D& maxwell3d, Maxwell3D::Regs::PrimitiveTopology topology, u32 vertex_first, u32 vertex_count, u32 base_instance, u32 num_instances) {
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draw_state.topology = topology;
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draw_state.vertex_buffer.first = vertex_first;
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draw_state.vertex_buffer.count = vertex_count;
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draw_state.base_instance = base_instance;
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ProcessDraw(maxwell3d, false, num_instances);
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}
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void Maxwell3D::DrawManager::DrawArrayInstanced(Maxwell3D& maxwell3d, Maxwell3D::Regs::PrimitiveTopology topology, u32 vertex_first, u32 vertex_count, bool subsequent) {
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draw_state.topology = topology;
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draw_state.vertex_buffer.first = vertex_first;
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draw_state.vertex_buffer.count = vertex_count;
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if (!subsequent) {
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draw_state.instance_count = 1;
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}
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draw_state.base_instance = draw_state.instance_count - 1;
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draw_state.draw_mode = DrawMode::Instance;
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draw_state.instance_count++;
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ProcessDraw(maxwell3d, false, 1);
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}
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void Maxwell3D::DrawManager::DrawIndex(Maxwell3D& maxwell3d, Maxwell3D::Regs::PrimitiveTopology topology, u32 index_first, u32 index_count, u32 base_index, u32 base_instance, u32 num_instances) {
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draw_state.topology = topology;
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draw_state.index_buffer = maxwell3d.regs.index_buffer;
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draw_state.index_buffer.first = index_first;
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draw_state.index_buffer.count = index_count;
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draw_state.base_index = base_index;
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draw_state.base_instance = base_instance;
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ProcessDraw(maxwell3d, true, num_instances);
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}
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void Maxwell3D::DrawManager::DrawArrayIndirect(Maxwell3D& maxwell3d, Maxwell3D::Regs::PrimitiveTopology topology) {
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draw_state.topology = topology;
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ProcessDrawIndirect(maxwell3d);
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}
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void Maxwell3D::DrawManager::DrawIndexedIndirect(Maxwell3D& maxwell3d, Maxwell3D::Regs::PrimitiveTopology topology, u32 index_first, u32 index_count) {
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draw_state.topology = topology;
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draw_state.index_buffer = maxwell3d.regs.index_buffer;
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draw_state.index_buffer.first = index_first;
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draw_state.index_buffer.count = index_count;
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ProcessDrawIndirect(maxwell3d);
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}
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void Maxwell3D::DrawManager::SetInlineIndexBuffer(Maxwell3D& maxwell3d, u32 index) {
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draw_state.inline_index_draw_indexes.push_back(u8(index & 0x000000ff));
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draw_state.inline_index_draw_indexes.push_back(u8((index & 0x0000ff00) >> 8));
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draw_state.inline_index_draw_indexes.push_back(u8((index & 0x00ff0000) >> 16));
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draw_state.inline_index_draw_indexes.push_back(u8((index & 0xff000000) >> 24));
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draw_state.draw_mode = DrawMode::InlineIndex;
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}
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void Maxwell3D::DrawManager::DrawBegin(Maxwell3D& maxwell3d) {
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auto reset_instance_count = maxwell3d.regs.draw.instance_id == Maxwell3D::Regs::Draw::InstanceId::First;
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auto increment_instance_count = maxwell3d.regs.draw.instance_id == Maxwell3D::Regs::Draw::InstanceId::Subsequent;
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if (reset_instance_count) {
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DrawDeferred(maxwell3d);
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draw_state.instance_count = 0;
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draw_state.draw_mode = DrawMode::General;
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} else if (increment_instance_count) {
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draw_state.instance_count++;
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draw_state.draw_mode = DrawMode::Instance;
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}
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draw_state.topology = maxwell3d.regs.draw.topology;
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}
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void Maxwell3D::DrawManager::DrawEnd(Maxwell3D& maxwell3d, u32 instance_count, bool force_draw) {
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switch (draw_state.draw_mode) {
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case DrawMode::Instance:
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if (!force_draw) {
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break;
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}
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[[fallthrough]];
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case DrawMode::General:
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draw_state.base_instance = maxwell3d.regs.global_base_instance_index;
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draw_state.base_index = maxwell3d.regs.global_base_vertex_index;
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if (draw_state.draw_indexed) {
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draw_state.index_buffer = maxwell3d.regs.index_buffer;
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ProcessDraw(maxwell3d, true, instance_count);
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} else {
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draw_state.vertex_buffer = maxwell3d.regs.vertex_buffer;
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ProcessDraw(maxwell3d, false, instance_count);
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}
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draw_state.draw_indexed = false;
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break;
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case DrawMode::InlineIndex:
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draw_state.base_instance = maxwell3d.regs.global_base_instance_index;
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draw_state.base_index = maxwell3d.regs.global_base_vertex_index;
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draw_state.index_buffer = maxwell3d.regs.index_buffer;
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draw_state.index_buffer.count = u32(draw_state.inline_index_draw_indexes.size() / 4);
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draw_state.index_buffer.format = Maxwell3D::Regs::IndexFormat::UnsignedInt;
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maxwell3d.dirty.flags[VideoCommon::Dirty::IndexBuffer] = true;
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ProcessDraw(maxwell3d, true, instance_count);
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draw_state.inline_index_draw_indexes.clear();
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break;
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}
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}
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void Maxwell3D::DrawManager::DrawIndexSmall(Maxwell3D& maxwell3d, u32 argument) {
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Maxwell3D::Regs::IndexBufferSmall index_small_params{argument};
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draw_state.base_instance = maxwell3d.regs.global_base_instance_index;
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draw_state.base_index = maxwell3d.regs.global_base_vertex_index;
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draw_state.index_buffer = maxwell3d.regs.index_buffer;
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draw_state.index_buffer.first = index_small_params.first;
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draw_state.index_buffer.count = index_small_params.count;
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draw_state.topology = index_small_params.topology;
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maxwell3d.dirty.flags[VideoCommon::Dirty::IndexBuffer] = true;
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ProcessDraw(maxwell3d, true, 1);
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}
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void Maxwell3D::DrawManager::DrawTexture(Maxwell3D& maxwell3d) {
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draw_texture_state.dst_x0 = f32(maxwell3d.regs.draw_texture.dst_x0) / 4096.f;
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draw_texture_state.dst_y0 = f32(maxwell3d.regs.draw_texture.dst_y0) / 4096.f;
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const auto dst_width = f32(maxwell3d.regs.draw_texture.dst_width) / 4096.f;
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const auto dst_height = f32(maxwell3d.regs.draw_texture.dst_height) / 4096.f;
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const bool lower_left{maxwell3d.regs.window_origin.mode != Maxwell3D::Regs::WindowOrigin::Mode::UpperLeft};
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if (lower_left) {
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draw_texture_state.dst_y0 = f32(maxwell3d.regs.surface_clip.height) - draw_texture_state.dst_y0;
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}
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draw_texture_state.dst_x1 = draw_texture_state.dst_x0 + dst_width;
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draw_texture_state.dst_y1 = draw_texture_state.dst_y0 + dst_height;
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draw_texture_state.src_x0 = f32(maxwell3d.regs.draw_texture.src_x0) / 4096.f;
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draw_texture_state.src_y0 = f32(maxwell3d.regs.draw_texture.src_y0) / 4096.f;
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draw_texture_state.src_x1 = (f32(maxwell3d.regs.draw_texture.dx_du) / 4294967296.f) * dst_width + draw_texture_state.src_x0;
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draw_texture_state.src_y1 = (f32(maxwell3d.regs.draw_texture.dy_dv) / 4294967296.f) * dst_height + draw_texture_state.src_y0;
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draw_texture_state.src_sampler = maxwell3d.regs.draw_texture.src_sampler;
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draw_texture_state.src_texture = maxwell3d.regs.draw_texture.src_texture;
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maxwell3d.rasterizer->DrawTexture();
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}
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void Maxwell3D::DrawManager::UpdateTopology(Maxwell3D& maxwell3d) {
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switch (maxwell3d.regs.primitive_topology_control) {
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case Maxwell3D::Regs::PrimitiveTopologyControl::UseInBeginMethods:
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break;
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case Maxwell3D::Regs::PrimitiveTopologyControl::UseSeparateState:
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switch (maxwell3d.regs.topology_override) {
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case Maxwell3D::Regs::PrimitiveTopologyOverride::None:
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break;
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case Maxwell3D::Regs::PrimitiveTopologyOverride::Points:
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draw_state.topology = Maxwell3D::Regs::PrimitiveTopology::Points;
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break;
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case Maxwell3D::Regs::PrimitiveTopologyOverride::Lines:
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draw_state.topology = Maxwell3D::Regs::PrimitiveTopology::Lines;
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break;
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case Maxwell3D::Regs::PrimitiveTopologyOverride::LineStrip:
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draw_state.topology = Maxwell3D::Regs::PrimitiveTopology::LineStrip;
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break;
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default:
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draw_state.topology = Maxwell3D::Regs::PrimitiveTopology(maxwell3d.regs.topology_override);
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break;
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}
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break;
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}
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}
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void Maxwell3D::DrawManager::ProcessDraw(Maxwell3D& maxwell3d, bool draw_indexed, u32 instance_count) {
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LOG_TRACE(HW_GPU, "called, topology={}, count={}", draw_state.topology, draw_indexed ? draw_state.index_buffer.count : draw_state.vertex_buffer.count);
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UpdateTopology(maxwell3d);
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if (maxwell3d.ShouldExecute()) {
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maxwell3d.rasterizer->Draw(draw_indexed, instance_count);
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}
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}
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void Maxwell3D::DrawManager::ProcessDrawIndirect(Maxwell3D& maxwell3d) {
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LOG_TRACE(HW_GPU, "called, topology={}, is_indexed={}, includes_count={}, buffer_size={}, max_draw_count={}", draw_state.topology, indirect_state.is_indexed, indirect_state.include_count, indirect_state.buffer_size, indirect_state.max_draw_counts);
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UpdateTopology(maxwell3d);
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if (maxwell3d.ShouldExecute()) {
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maxwell3d.rasterizer->DrawIndirect();
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}
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}
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} // namespace Tegra::Engines
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