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Merge pull request #3910 from wwylele/mipmap 

gl_rasterizer: implement mipmap by forwarding PICA mipmap configuration
This commit is contained in:
Weiyi Wang 2019-04-17 14:10:42 -04:00 committed by GitHub
parent 5f5e991884 e3b6bf93bc
commit 0ec45f694c
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 217 additions and 51 deletions
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7
src/video_core/regs_texturing.h
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@ -59,11 +59,16 @@ struct TexturingRegs {
BitField<2, 1, TextureFilter> min_filter;
BitField<8, 3, WrapMode> wrap_t;
BitField<12, 3, WrapMode> wrap_s;
BitField<24, 1, TextureFilter> mip_filter;
/// @note Only valid for texture 0 according to 3DBrew.
BitField<28, 3, TextureType> type;
};
INSERT_PADDING_WORDS(0x1);
union {
BitField<0, 13, s32> bias; // fixed1.4.8
BitField<16, 4, u32> max_level;
BitField<24, 4, u32> min_level;
} lod;
BitField<0, 28, u32> address;

47
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -1555,13 +1555,16 @@ bool RasterizerOpenGL::AccelerateDisplay(const GPU::Regs::FramebufferConfig& con
void RasterizerOpenGL::SamplerInfo::Create() {
sampler.Create();
mag_filter = min_filter = TextureConfig::Linear;
mag_filter = min_filter = mip_filter = TextureConfig::Linear;
wrap_s = wrap_t = TextureConfig::Repeat;
border_color = 0;
lod_min = lod_max = 0;
lod_bias = 0;
// default is GL_LINEAR_MIPMAP_LINEAR
glSamplerParameteri(sampler.handle, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// default is 1000 and -1000
// Other attributes have correct defaults
glSamplerParameterf(sampler.handle, GL_TEXTURE_MAX_LOD, lod_max);
glSamplerParameterf(sampler.handle, GL_TEXTURE_MIN_LOD, lod_min);
}
void RasterizerOpenGL::SamplerInfo::SyncWithConfig(
@ -1571,11 +1574,28 @@ void RasterizerOpenGL::SamplerInfo::SyncWithConfig(
if (mag_filter != config.mag_filter) {
mag_filter = config.mag_filter;
glSamplerParameteri(s, GL_TEXTURE_MAG_FILTER, PicaToGL::TextureFilterMode(mag_filter));
glSamplerParameteri(s, GL_TEXTURE_MAG_FILTER, PicaToGL::TextureMagFilterMode(mag_filter));
}
if (min_filter != config.min_filter) {
if (min_filter != config.min_filter || mip_filter != config.mip_filter) {
min_filter = config.min_filter;
glSamplerParameteri(s, GL_TEXTURE_MIN_FILTER, PicaToGL::TextureFilterMode(min_filter));
mip_filter = config.mip_filter;
glSamplerParameteri(s, GL_TEXTURE_MIN_FILTER,
PicaToGL::TextureMinFilterMode(min_filter, mip_filter));
}
// TODO(wwylele): remove this block once mipmap for cube is implemented
bool new_supress_mipmap_for_cube =
config.type == Pica::TexturingRegs::TextureConfig::TextureCube;
if (supress_mipmap_for_cube != new_supress_mipmap_for_cube) {
supress_mipmap_for_cube = new_supress_mipmap_for_cube;
if (new_supress_mipmap_for_cube) {
// HACK: use mag filter converter for min filter because they are the same anyway
glSamplerParameteri(s, GL_TEXTURE_MIN_FILTER,
PicaToGL::TextureMagFilterMode(min_filter));
} else {
glSamplerParameteri(s, GL_TEXTURE_MIN_FILTER,
PicaToGL::TextureMinFilterMode(min_filter, mip_filter));
}
}
if (wrap_s != config.wrap_s) {
@ -1594,6 +1614,21 @@ void RasterizerOpenGL::SamplerInfo::SyncWithConfig(
glSamplerParameterfv(s, GL_TEXTURE_BORDER_COLOR, gl_color.data());
}
}
if (lod_min != config.lod.min_level) {
lod_min = config.lod.min_level;
glSamplerParameterf(s, GL_TEXTURE_MIN_LOD, lod_min);
}
if (lod_max != config.lod.max_level) {
lod_max = config.lod.max_level;
glSamplerParameterf(s, GL_TEXTURE_MAX_LOD, lod_max);
}
if (lod_bias != config.lod.bias) {
lod_bias = config.lod.bias;
glSamplerParameterf(s, GL_TEXTURE_LOD_BIAS, lod_bias / 256.0f);
}
}
void RasterizerOpenGL::SetShader() {

7
src/video_core/renderer_opengl/gl_rasterizer.h
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@ -69,9 +69,16 @@ private:
private:
TextureConfig::TextureFilter mag_filter;
TextureConfig::TextureFilter min_filter;
TextureConfig::TextureFilter mip_filter;
TextureConfig::WrapMode wrap_s;
TextureConfig::WrapMode wrap_t;
u32 border_color;
u32 lod_min;
u32 lod_max;
s32 lod_bias;
// TODO(wwylele): remove this once mipmap for cube is implemented
bool supress_mipmap_for_cube = false;
};
/// Structure that the hardware rendered vertices are composed of

121
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
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@ -1332,6 +1332,7 @@ SurfaceRect_Tuple RasterizerCacheOpenGL::GetSurfaceSubRect(const SurfaceParams&
// Delete the expanded surface, this can't be done safely yet
// because it may still be in use
surface->UnlinkAllWatcher(); // unlink watchers as if this surface is already deleted
remove_surfaces.emplace(surface);
surface = new_surface;
@ -1358,10 +1359,15 @@ Surface RasterizerCacheOpenGL::GetTextureSurface(
const Pica::TexturingRegs::FullTextureConfig& config) {
Pica::Texture::TextureInfo info =
Pica::Texture::TextureInfo::FromPicaRegister(config.config, config.format);
return GetTextureSurface(info);
return GetTextureSurface(info, config.config.lod.max_level);
}
Surface RasterizerCacheOpenGL::GetTextureSurface(const Pica::Texture::TextureInfo& info,
u32 max_level) {
if (info.physical_address == 0) {
return nullptr;
}
Surface RasterizerCacheOpenGL::GetTextureSurface(const Pica::Texture::TextureInfo& info) {
SurfaceParams params;
params.addr = info.physical_address;
params.width = info.width;
@ -1370,23 +1376,100 @@ Surface RasterizerCacheOpenGL::GetTextureSurface(const Pica::Texture::TextureInf
params.pixel_format = SurfaceParams::PixelFormatFromTextureFormat(info.format);
params.UpdateParams();
if (info.width % 8 != 0 || info.height % 8 != 0) {
Surface src_surface;
Common::Rectangle<u32> rect;
std::tie(src_surface, rect) = GetSurfaceSubRect(params, ScaleMatch::Ignore, true);
params.res_scale = src_surface->res_scale;
Surface tmp_surface = CreateSurface(params);
BlitTextures(src_surface->texture.handle, rect, tmp_surface->texture.handle,
tmp_surface->GetScaledRect(),
SurfaceParams::GetFormatType(params.pixel_format), read_framebuffer.handle,
draw_framebuffer.handle);
remove_surfaces.emplace(tmp_surface);
return tmp_surface;
u32 min_width = info.width >> max_level;
u32 min_height = info.height >> max_level;
if (min_width % 8 != 0 || min_height % 8 != 0) {
LOG_CRITICAL(Render_OpenGL, "Texture size ({}x{}) is not multiple of 8", min_width,
min_height);
return nullptr;
}
if (info.width != (min_width << max_level) || info.height != (min_height << max_level)) {
LOG_CRITICAL(Render_OpenGL,
"Texture size ({}x{}) does not support required mipmap level ({})",
params.width, params.height, max_level);
return nullptr;
}
return GetSurface(params, ScaleMatch::Ignore, true);
auto surface = GetSurface(params, ScaleMatch::Ignore, true);
// Update mipmap if necessary
if (max_level != 0) {
if (max_level >= 8) {
// since PICA only supports texture size between 8 and 1024, there are at most eight
// possible mipmap levels including the base.
LOG_CRITICAL(Render_OpenGL, "Unsupported mipmap level {}", max_level);
return nullptr;
}
OpenGLState prev_state = OpenGLState::GetCurState();
OpenGLState state;
SCOPE_EXIT({ prev_state.Apply(); });
auto format_tuple = GetFormatTuple(params.pixel_format);
// Allocate more mipmap level if necessary
if (surface->max_level < max_level) {
state.texture_units[0].texture_2d = surface->texture.handle;
state.Apply();
glActiveTexture(GL_TEXTURE0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, max_level);
u32 width = surface->width * surface->res_scale;
u32 height = surface->height * surface->res_scale;
for (u32 level = surface->max_level + 1; level <= max_level; ++level) {
glTexImage2D(GL_TEXTURE_2D, level, format_tuple.internal_format, width >> level,
height >> level, 0, format_tuple.format, format_tuple.type, nullptr);
}
surface->max_level = max_level;
}
// Blit mipmaps that have been invalidated
state.draw.read_framebuffer = read_framebuffer.handle;
state.draw.draw_framebuffer = draw_framebuffer.handle;
state.ResetTexture(surface->texture.handle);
SurfaceParams params = *surface;
for (u32 level = 1; level <= max_level; ++level) {
// In PICA all mipmap levels are stored next to each other
params.addr += params.width * params.height * params.GetFormatBpp() / 8;
params.width /= 2;
params.height /= 2;
params.stride = 0; // reset stride and let UpdateParams re-initialize it
params.UpdateParams();
auto& watcher = surface->level_watchers[level - 1];
if (!watcher || !watcher->Get()) {
auto level_surface = GetSurface(params, ScaleMatch::Ignore, true);
if (level_surface) {
watcher = level_surface->CreateWatcher();
} else {
watcher = nullptr;
}
}
if (watcher && !watcher->IsValid()) {
auto level_surface = watcher->Get();
if (!level_surface->invalid_regions.empty()) {
ValidateSurface(level_surface, level_surface->addr, level_surface->size);
}
state.ResetTexture(level_surface->texture.handle);
state.Apply();
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
level_surface->texture.handle, 0);
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
GL_TEXTURE_2D, 0, 0);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
surface->texture.handle, level);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
GL_TEXTURE_2D, 0, 0);
auto src_rect = level_surface->GetScaledRect();
auto dst_rect = params.GetScaledRect();
glBlitFramebuffer(src_rect.left, src_rect.bottom, src_rect.right, src_rect.top,
dst_rect.left, dst_rect.bottom, dst_rect.right, dst_rect.top,
GL_COLOR_BUFFER_BIT, GL_LINEAR);
watcher->Validate();
}
}
}
return surface;
}
const CachedTextureCube& RasterizerCacheOpenGL::GetTextureCube(const TextureCubeConfig& config) {
@ -1456,6 +1539,9 @@ const CachedTextureCube& RasterizerCacheOpenGL::GetTextureCube(const TextureCube
for (const Face& face : faces) {
if (face.watcher && !face.watcher->IsValid()) {
auto surface = face.watcher->Get();
if (!surface->invalid_regions.empty()) {
ValidateSurface(surface, surface->addr, surface->size);
}
state.ResetTexture(surface->texture.handle);
state.Apply();
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
@ -1764,6 +1850,7 @@ void RasterizerCacheOpenGL::InvalidateRegion(PAddr addr, u32 size, const Surface
const auto interval = cached_surface->GetInterval() & invalid_interval;
cached_surface->invalid_regions.insert(interval);
cached_surface->InvalidateAllWatcher();
// Remove only "empty" fill surfaces to avoid destroying and recreating OGL textures
if (cached_surface->type == SurfaceType::Fill &&

17
src/video_core/renderer_opengl/gl_rasterizer_cache.h
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@ -356,6 +356,11 @@ struct CachedSurface : SurfaceParams, std::enable_shared_from_this<CachedSurface
OGLTexture texture;
/// max mipmap level that has been attached to the texture
u32 max_level = 0;
/// level_watchers[i] watches the (i+1)-th level mipmap source surface
std::array<std::shared_ptr<SurfaceWatcher>, 7> level_watchers;
static constexpr unsigned int GetGLBytesPerPixel(PixelFormat format) {
// OpenGL needs 4 bpp alignment for D24 since using GL_UNSIGNED_INT as type
return format == PixelFormat::Invalid
@ -392,6 +397,16 @@ struct CachedSurface : SurfaceParams, std::enable_shared_from_this<CachedSurface
}
}
void UnlinkAllWatcher() {
for (const auto& watcher : watchers) {
if (auto locked = watcher.lock()) {
locked->valid = false;
locked->surface.reset();
}
}
watchers.clear();
}
private:
std::list<std::weak_ptr<SurfaceWatcher>> watchers;
};
@ -434,7 +449,7 @@ public:
/// Get a surface based on the texture configuration
Surface GetTextureSurface(const Pica::TexturingRegs::FullTextureConfig& config);
Surface GetTextureSurface(const Pica::Texture::TextureInfo& info);
Surface GetTextureSurface(const Pica::Texture::TextureInfo& info, u32 max_level = 0);
/// Get a texture cube based on the texture configuration
const CachedTextureCube& GetTextureCube(const TextureCubeConfig& config);

18
src/video_core/renderer_opengl/gl_shader_gen.cpp
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@ -317,8 +317,9 @@ static std::string SampleTexture(const PicaFSConfig& config, unsigned texture_un
// Only unit 0 respects the texturing type
switch (state.texture0_type) {
case TexturingRegs::TextureConfig::Texture2D:
return "texture(tex0, texcoord0)";
return "textureLod(tex0, texcoord0, getLod(texcoord0 * textureSize(tex0, 0)))";
case TexturingRegs::TextureConfig::Projection2D:
// TODO (wwylele): find the exact LOD formula for projection texture
return "textureProj(tex0, vec3(texcoord0, texcoord0_w))";
case TexturingRegs::TextureConfig::TextureCube:
return "texture(tex_cube, vec3(texcoord0, texcoord0_w))";
@ -335,12 +336,12 @@ static std::string SampleTexture(const PicaFSConfig& config, unsigned texture_un
return "texture(tex0, texcoord0)";
}
case 1:
return "texture(tex1, texcoord1)";
return "textureLod(tex1, texcoord1, getLod(texcoord1 * textureSize(tex1, 0)))";
case 2:
if (state.texture2_use_coord1)
return "texture(tex2, texcoord1)";
return "textureLod(tex2, texcoord1, getLod(texcoord1 * textureSize(tex2, 0)))";
else
return "texture(tex2, texcoord2)";
return "textureLod(tex2, texcoord2, getLod(texcoord2 * textureSize(tex2, 0)))";
case 3:
if (state.proctex.enable) {
return "ProcTex()";
@ -1333,6 +1334,15 @@ vec4 byteround(vec4 x) {
return round(x * 255.0) * (1.0 / 255.0);
}
// PICA's LOD formula for 2D textures.
// This LOD formula is the same as the LOD lower limit defined in OpenGL.
// f(x, y) >= max{m_u, m_v, m_w}
// (See OpenGL 4.6 spec, 8.14.1 - Scale Factor and Level-of-Detail)
float getLod(vec2 coord) {
vec2 d = max(abs(dFdx(coord)), abs(dFdy(coord)));
return log2(max(d.x, d.y));
}
#if ALLOW_SHADOW
uvec2 DecodeShadow(uint pixel) {

47
src/video_core/renderer_opengl/pica_to_gl.h
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@ -29,33 +29,40 @@ using GLivec4 = std::array<GLint, 4>;
namespace PicaToGL {
inline GLenum TextureFilterMode(Pica::TexturingRegs::TextureConfig::TextureFilter mode) {
static constexpr std::array<GLenum, 2> filter_mode_table{{
GL_NEAREST, // TextureFilter::Nearest
GL_LINEAR, // TextureFilter::Linear
}};
const auto index = static_cast<std::size_t>(mode);
// Range check table for input
if (index >= filter_mode_table.size()) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode {}", index);
UNREACHABLE();
using TextureFilter = Pica::TexturingRegs::TextureConfig::TextureFilter;
inline GLenum TextureMagFilterMode(TextureFilter mode) {
if (mode == TextureFilter::Linear) {
return GL_LINEAR;
}
GLenum gl_mode = filter_mode_table[index];
// Check for dummy values indicating an unknown mode
if (gl_mode == 0) {
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode {}", index);
if (mode == TextureFilter::Nearest) {
return GL_NEAREST;
}
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode {}", static_cast<u32>(mode));
UNIMPLEMENTED();
return GL_LINEAR;
}
return gl_mode;
inline GLenum TextureMinFilterMode(TextureFilter min, TextureFilter mip) {
if (min == TextureFilter::Linear) {
if (mip == TextureFilter::Linear) {
return GL_LINEAR_MIPMAP_LINEAR;
}
if (mip == TextureFilter::Nearest) {
return GL_LINEAR_MIPMAP_NEAREST;
}
} else if (min == TextureFilter::Nearest) {
if (mip == TextureFilter::Linear) {
return GL_NEAREST_MIPMAP_LINEAR;
}
if (mip == TextureFilter::Nearest) {
return GL_NEAREST_MIPMAP_NEAREST;
}
}
LOG_CRITICAL(Render_OpenGL, "Unknown texture filtering mode {} and {}", static_cast<u32>(min),
static_cast<u32>(mip));
UNIMPLEMENTED();
return GL_LINEAR_MIPMAP_LINEAR;
}
inline GLenum WrapMode(Pica::TexturingRegs::TextureConfig::WrapMode mode) {