e89a31006f
- [GPU] Precalculate memory byte usage for base mip (and any additional mip levels). - [GPU] Change TextureCache::WatchCallback so that if it's fired multiple times for the same texture it does not assert. - [GPU] Add write watches for texture memory associated with additional mipmap levels.
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2014 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#include "xenia/gpu/texture_info.h"
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#include <algorithm>
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#include <cmath>
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#include "xenia/base/math.h"
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namespace xe {
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namespace gpu {
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using namespace xe::gpu::xenos;
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static TextureExtent CalculateExtent(const FormatInfo* format_info,
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uint32_t pitch, uint32_t height,
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uint32_t depth, bool is_tiled,
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bool is_guest) {
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TextureExtent usage;
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usage.pitch = pitch;
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usage.height = height;
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usage.block_pitch_h = xe::round_up(usage.pitch, format_info->block_width) /
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format_info->block_width;
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usage.block_height = xe::round_up(usage.height, format_info->block_height) /
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format_info->block_height;
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usage.block_pitch_v = usage.block_height;
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usage.depth = depth;
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if (is_guest) {
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// Texture dimensions must be a multiple of tile
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// dimensions (32x32 blocks).
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usage.block_pitch_h = xe::round_up(usage.block_pitch_h, 32);
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usage.block_pitch_v = xe::round_up(usage.block_pitch_v, 32);
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usage.pitch = usage.block_pitch_h * format_info->block_width;
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usage.height = usage.block_pitch_v * format_info->block_height;
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uint32_t bytes_per_block = format_info->bytes_per_block();
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uint32_t byte_pitch = usage.block_pitch_h * bytes_per_block;
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if (!is_tiled) {
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// Each row must be a multiple of 256 bytes in linear textures.
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byte_pitch = xe::round_up(byte_pitch, 256);
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usage.block_pitch_h = byte_pitch / bytes_per_block;
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usage.pitch = usage.block_pitch_h * format_info->block_width;
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}
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// Is depth special?
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usage.depth = usage.depth;
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}
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return usage;
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}
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TextureExtent TextureExtent::Calculate(const FormatInfo* format_info,
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uint32_t pitch, uint32_t height,
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uint32_t depth, bool is_tiled,
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bool is_guest) {
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return CalculateExtent(format_info, pitch, height, depth, is_tiled, is_guest);
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}
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TextureExtent TextureExtent::Calculate(const TextureInfo* info, bool is_guest) {
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assert_not_null(info);
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return CalculateExtent(info->format_info(), info->pitch, info->height + 1,
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info->depth + 1, info->is_tiled, is_guest);
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}
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} // namespace gpu
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} // namespace xe
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