summaryrefslogtreecommitdiffstats
path: root/src/video_core/texture_cache.cpp
blob: b47ce6b980c496eb998910c6508b35b817fcefa9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include "common/alignment.h"
#include "common/assert.h"
#include "common/cityhash.h"
#include "common/common_types.h"
#include "core/core.h"
#include "video_core/surface.h"
#include "video_core/texture_cache.h"
#include "video_core/textures/decoders.h"
#include "video_core/textures/texture.h"

namespace VideoCommon {

using VideoCore::Surface::SurfaceTarget;

using VideoCore::Surface::ComponentTypeFromDepthFormat;
using VideoCore::Surface::ComponentTypeFromRenderTarget;
using VideoCore::Surface::ComponentTypeFromTexture;
using VideoCore::Surface::PixelFormatFromDepthFormat;
using VideoCore::Surface::PixelFormatFromRenderTargetFormat;
using VideoCore::Surface::PixelFormatFromTextureFormat;
using VideoCore::Surface::SurfaceTargetFromTextureType;

constexpr u32 GetMipmapSize(bool uncompressed, u32 mip_size, u32 tile) {
    return uncompressed ? mip_size : std::max(1U, (mip_size + tile - 1) / tile);
}

SurfaceParams SurfaceParams::CreateForTexture(Core::System& system,
                                              const Tegra::Texture::FullTextureInfo& config) {
    SurfaceParams params;
    params.is_tiled = config.tic.IsTiled();
    params.srgb_conversion = config.tic.IsSrgbConversionEnabled();
    params.block_width = params.is_tiled ? config.tic.BlockWidth() : 0,
    params.block_height = params.is_tiled ? config.tic.BlockHeight() : 0,
    params.block_depth = params.is_tiled ? config.tic.BlockDepth() : 0,
    params.tile_width_spacing = params.is_tiled ? (1 << config.tic.tile_width_spacing.Value()) : 1;
    params.pixel_format = PixelFormatFromTextureFormat(config.tic.format, config.tic.r_type.Value(),
                                                       params.srgb_conversion);
    params.component_type = ComponentTypeFromTexture(config.tic.r_type.Value());
    params.type = GetFormatType(params.pixel_format);
    params.target = SurfaceTargetFromTextureType(config.tic.texture_type);
    params.width = Common::AlignUp(config.tic.Width(), GetCompressionFactor(params.pixel_format));
    params.height = Common::AlignUp(config.tic.Height(), GetCompressionFactor(params.pixel_format));
    params.depth = config.tic.Depth();
    if (params.target == SurfaceTarget::TextureCubemap ||
        params.target == SurfaceTarget::TextureCubeArray) {
        params.depth *= 6;
    }
    params.pitch = params.is_tiled ? 0 : config.tic.Pitch();
    params.unaligned_height = config.tic.Height();
    params.num_levels = config.tic.max_mip_level + 1;

    params.CalculateCachedValues();
    return params;
}

SurfaceParams SurfaceParams::CreateForDepthBuffer(
    Core::System& system, u32 zeta_width, u32 zeta_height, Tegra::DepthFormat format,
    u32 block_width, u32 block_height, u32 block_depth,
    Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout type) {
    SurfaceParams params;
    params.is_tiled = type == Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout::BlockLinear;
    params.srgb_conversion = false;
    params.block_width = 1 << std::min(block_width, 5U);
    params.block_height = 1 << std::min(block_height, 5U);
    params.block_depth = 1 << std::min(block_depth, 5U);
    params.tile_width_spacing = 1;
    params.pixel_format = PixelFormatFromDepthFormat(format);
    params.component_type = ComponentTypeFromDepthFormat(format);
    params.type = GetFormatType(params.pixel_format);
    params.width = zeta_width;
    params.height = zeta_height;
    params.unaligned_height = zeta_height;
    params.target = SurfaceTarget::Texture2D;
    params.depth = 1;
    params.num_levels = 1;

    params.CalculateCachedValues();
    return params;
}

SurfaceParams SurfaceParams::CreateForFramebuffer(Core::System& system, std::size_t index) {
    const auto& config{system.GPU().Maxwell3D().regs.rt[index]};
    SurfaceParams params;
    params.is_tiled =
        config.memory_layout.type == Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout::BlockLinear;
    params.srgb_conversion = config.format == Tegra::RenderTargetFormat::BGRA8_SRGB ||
                             config.format == Tegra::RenderTargetFormat::RGBA8_SRGB;
    params.block_width = 1 << config.memory_layout.block_width;
    params.block_height = 1 << config.memory_layout.block_height;
    params.block_depth = 1 << config.memory_layout.block_depth;
    params.tile_width_spacing = 1;
    params.pixel_format = PixelFormatFromRenderTargetFormat(config.format);
    params.component_type = ComponentTypeFromRenderTarget(config.format);
    params.type = GetFormatType(params.pixel_format);
    if (params.is_tiled) {
        params.width = config.width;
    } else {
        const u32 bpp = GetFormatBpp(params.pixel_format) / CHAR_BIT;
        params.pitch = config.width;
        params.width = params.pitch / bpp;
    }
    params.height = config.height;
    params.depth = 1;
    params.unaligned_height = config.height;
    params.target = SurfaceTarget::Texture2D;
    params.num_levels = 1;

    params.CalculateCachedValues();
    return params;
}

SurfaceParams SurfaceParams::CreateForFermiCopySurface(
    const Tegra::Engines::Fermi2D::Regs::Surface& config) {
    SurfaceParams params{};
    params.is_tiled = !config.linear;
    params.srgb_conversion = config.format == Tegra::RenderTargetFormat::BGRA8_SRGB ||
                             config.format == Tegra::RenderTargetFormat::RGBA8_SRGB;
    params.block_width = params.is_tiled ? std::min(config.BlockWidth(), 32U) : 0,
    params.block_height = params.is_tiled ? std::min(config.BlockHeight(), 32U) : 0,
    params.block_depth = params.is_tiled ? std::min(config.BlockDepth(), 32U) : 0,
    params.tile_width_spacing = 1;
    params.pixel_format = PixelFormatFromRenderTargetFormat(config.format);
    params.component_type = ComponentTypeFromRenderTarget(config.format);
    params.type = GetFormatType(params.pixel_format);
    params.width = config.width;
    params.height = config.height;
    params.unaligned_height = config.height;
    // TODO(Rodrigo): Try to guess the surface target from depth and layer parameters
    params.target = SurfaceTarget::Texture2D;
    params.depth = 1;
    params.num_levels = 1;

    params.CalculateCachedValues();
    return params;
}

u32 SurfaceParams::GetMipWidth(u32 level) const {
    return std::max(1U, width >> level);
}

u32 SurfaceParams::GetMipHeight(u32 level) const {
    return std::max(1U, height >> level);
}

u32 SurfaceParams::GetMipDepth(u32 level) const {
    return IsLayered() ? depth : std::max(1U, depth >> level);
}

bool SurfaceParams::IsLayered() const {
    switch (target) {
    case SurfaceTarget::Texture1DArray:
    case SurfaceTarget::Texture2DArray:
    case SurfaceTarget::TextureCubeArray:
    case SurfaceTarget::TextureCubemap:
        return true;
    default:
        return false;
    }
}

u32 SurfaceParams::GetMipBlockHeight(u32 level) const {
    // Auto block resizing algorithm from:
    // https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
    if (level == 0) {
        return this->block_height;
    }

    const u32 height{GetMipHeight(level)};
    const u32 default_block_height{GetDefaultBlockHeight()};
    const u32 blocks_in_y{(height + default_block_height - 1) / default_block_height};
    u32 block_height = 16;
    while (block_height > 1 && blocks_in_y <= block_height * 4) {
        block_height >>= 1;
    }
    return block_height;
}

u32 SurfaceParams::GetMipBlockDepth(u32 level) const {
    if (level == 0) {
        return this->block_depth;
    }
    if (IsLayered()) {
        return 1;
    }

    const u32 depth{GetMipDepth(level)};
    u32 block_depth = 32;
    while (block_depth > 1 && depth * 2 <= block_depth) {
        block_depth >>= 1;
    }
    if (block_depth == 32 && GetMipBlockHeight(level) >= 4) {
        return 16;
    }
    return block_depth;
}

std::size_t SurfaceParams::GetGuestMipmapLevelOffset(u32 level) const {
    std::size_t offset = 0;
    for (u32 i = 0; i < level; i++) {
        offset += GetInnerMipmapMemorySize(i, false, false);
    }
    return offset;
}

std::size_t SurfaceParams::GetHostMipmapLevelOffset(u32 level) const {
    std::size_t offset = 0;
    for (u32 i = 0; i < level; i++) {
        offset += GetInnerMipmapMemorySize(i, true, false) * GetNumLayers();
    }
    return offset;
}

std::size_t SurfaceParams::GetHostMipmapSize(u32 level) const {
    return GetInnerMipmapMemorySize(level, true, false) * GetNumLayers();
}

std::size_t SurfaceParams::GetGuestLayerSize() const {
    return GetLayerSize(false, false);
}

std::size_t SurfaceParams::GetLayerSize(bool as_host_size, bool uncompressed) const {
    std::size_t size = 0;
    for (u32 level = 0; level < num_levels; ++level) {
        size += GetInnerMipmapMemorySize(level, as_host_size, uncompressed);
    }
    if (is_tiled && IsLayered()) {
        return Common::AlignUp(size, Tegra::Texture::GetGOBSize() * block_height * block_depth);
    }
    return size;
}

std::size_t SurfaceParams::GetHostLayerSize(u32 level) const {
    ASSERT(target != SurfaceTarget::Texture3D);
    return GetInnerMipmapMemorySize(level, true, false);
}

u32 SurfaceParams::GetDefaultBlockWidth() const {
    return VideoCore::Surface::GetDefaultBlockWidth(pixel_format);
}

u32 SurfaceParams::GetDefaultBlockHeight() const {
    return VideoCore::Surface::GetDefaultBlockHeight(pixel_format);
}

u32 SurfaceParams::GetBitsPerPixel() const {
    return VideoCore::Surface::GetFormatBpp(pixel_format);
}

u32 SurfaceParams::GetBytesPerPixel() const {
    return VideoCore::Surface::GetBytesPerPixel(pixel_format);
}

bool SurfaceParams::IsFamiliar(const SurfaceParams& view_params) const {
    if (std::tie(is_tiled, tile_width_spacing, pixel_format, component_type, type) !=
        std::tie(view_params.is_tiled, view_params.tile_width_spacing, view_params.pixel_format,
                 view_params.component_type, view_params.type)) {
        return false;
    }

    const SurfaceTarget view_target{view_params.target};
    if (view_target == target) {
        return true;
    }

    switch (target) {
    case SurfaceTarget::Texture1D:
    case SurfaceTarget::Texture2D:
    case SurfaceTarget::Texture3D:
        return false;
    case SurfaceTarget::Texture1DArray:
        return view_target == SurfaceTarget::Texture1D;
    case SurfaceTarget::Texture2DArray:
        return view_target == SurfaceTarget::Texture2D;
    case SurfaceTarget::TextureCubemap:
        return view_target == SurfaceTarget::Texture2D ||
               view_target == SurfaceTarget::Texture2DArray;
    case SurfaceTarget::TextureCubeArray:
        return view_target == SurfaceTarget::Texture2D ||
               view_target == SurfaceTarget::Texture2DArray ||
               view_target == SurfaceTarget::TextureCubemap;
    default:
        UNIMPLEMENTED_MSG("Unimplemented texture family={}", static_cast<u32>(target));
        return false;
    }
}

bool SurfaceParams::IsPixelFormatZeta() const {
    return pixel_format >= VideoCore::Surface::PixelFormat::MaxColorFormat &&
           pixel_format < VideoCore::Surface::PixelFormat::MaxDepthStencilFormat;
}

void SurfaceParams::CalculateCachedValues() {
    switch (target) {
    case SurfaceTarget::Texture1D:
    case SurfaceTarget::Texture2D:
    case SurfaceTarget::Texture3D:
        num_layers = 1;
        break;
    case SurfaceTarget::Texture1DArray:
    case SurfaceTarget::Texture2DArray:
    case SurfaceTarget::TextureCubemap:
    case SurfaceTarget::TextureCubeArray:
        num_layers = depth;
        break;
    default:
        UNREACHABLE();
    }

    guest_size_in_bytes = GetInnerMemorySize(false, false, false);

    // ASTC is uncompressed in software, in emulated as RGBA8
    if (IsPixelFormatASTC(pixel_format)) {
        host_size_in_bytes = static_cast<std::size_t>(width * height * depth * 4U);
    } else {
        host_size_in_bytes = GetInnerMemorySize(true, false, false);
    }
}

std::size_t SurfaceParams::GetInnerMipmapMemorySize(u32 level, bool as_host_size,
                                                    bool uncompressed) const {
    const bool tiled{as_host_size ? false : is_tiled};
    const u32 width{GetMipmapSize(uncompressed, GetMipWidth(level), GetDefaultBlockWidth())};
    const u32 height{GetMipmapSize(uncompressed, GetMipHeight(level), GetDefaultBlockHeight())};
    const u32 depth{target == SurfaceTarget::Texture3D ? GetMipDepth(level) : 1U};
    return Tegra::Texture::CalculateSize(tiled, GetBytesPerPixel(), width, height, depth,
                                         GetMipBlockHeight(level), GetMipBlockDepth(level));
}

std::size_t SurfaceParams::GetInnerMemorySize(bool as_host_size, bool layer_only,
                                              bool uncompressed) const {
    return GetLayerSize(as_host_size, uncompressed) * (layer_only ? 1U : num_layers);
}

std::map<u64, std::pair<u32, u32>> SurfaceParams::CreateViewOffsetMap() const {
    std::map<u64, std::pair<u32, u32>> view_offset_map;
    switch (target) {
    case SurfaceTarget::Texture1D:
    case SurfaceTarget::Texture2D:
    case SurfaceTarget::Texture3D: {
        // TODO(Rodrigo): Add layer iterations for 3D textures
        constexpr u32 layer = 0;
        for (u32 level = 0; level < num_levels; ++level) {
            const std::size_t offset{GetGuestMipmapLevelOffset(level)};
            view_offset_map.insert({offset, {layer, level}});
        }
        break;
    }
    case SurfaceTarget::Texture1DArray:
    case SurfaceTarget::Texture2DArray:
    case SurfaceTarget::TextureCubemap:
    case SurfaceTarget::TextureCubeArray: {
        const std::size_t layer_size{GetGuestLayerSize()};
        for (u32 level = 0; level < num_levels; ++level) {
            const std::size_t level_offset{GetGuestMipmapLevelOffset(level)};
            for (u32 layer = 0; layer < num_layers; ++layer) {
                const auto layer_offset{static_cast<std::size_t>(layer_size * layer)};
                const std::size_t offset{level_offset + layer_offset};
                view_offset_map.insert({offset, {layer, level}});
            }
        }
        break;
    }
    default:
        UNIMPLEMENTED_MSG("Unimplemented surface target {}", static_cast<u32>(target));
    }
    return view_offset_map;
}

bool SurfaceParams::IsViewValid(const SurfaceParams& view_params, u32 layer, u32 level) const {
    return IsDimensionValid(view_params, level) && IsDepthValid(view_params, level) &&
           IsInBounds(view_params, layer, level);
}

bool SurfaceParams::IsDimensionValid(const SurfaceParams& view_params, u32 level) const {
    return view_params.width == GetMipWidth(level) && view_params.height == GetMipHeight(level);
}

bool SurfaceParams::IsDepthValid(const SurfaceParams& view_params, u32 level) const {
    if (view_params.target != SurfaceTarget::Texture3D) {
        return true;
    }
    return view_params.depth == GetMipDepth(level);
}

bool SurfaceParams::IsInBounds(const SurfaceParams& view_params, u32 layer, u32 level) const {
    return layer + view_params.num_layers <= num_layers &&
           level + view_params.num_levels <= num_levels;
}

std::size_t HasheableSurfaceParams::Hash() const {
    return static_cast<std::size_t>(
        Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this)));
}

bool HasheableSurfaceParams::operator==(const HasheableSurfaceParams& rhs) const {
    return std::tie(is_tiled, block_width, block_height, block_depth, tile_width_spacing, width,
                    height, depth, pitch, unaligned_height, num_levels, pixel_format,
                    component_type, type, target) ==
           std::tie(rhs.is_tiled, rhs.block_width, rhs.block_height, rhs.block_depth,
                    rhs.tile_width_spacing, rhs.width, rhs.height, rhs.depth, rhs.pitch,
                    rhs.unaligned_height, rhs.num_levels, rhs.pixel_format, rhs.component_type,
                    rhs.type, rhs.target);
}

std::size_t ViewKey::Hash() const {
    return static_cast<std::size_t>(
        Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this)));
}

bool ViewKey::operator==(const ViewKey& rhs) const {
    return std::tie(base_layer, num_layers, base_level, num_levels) ==
           std::tie(rhs.base_layer, rhs.num_layers, rhs.base_level, rhs.num_levels);
}

} // namespace VideoCommon