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Implement Mipmaps

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This commit is contained in:
FernandoS27 2018-10-24 18:30:27 -04:00
parent b5f8a5f0a3
commit bbf3b2da0c
2 changed files with 212 additions and 102 deletions
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242
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
View file

@ -90,27 +90,33 @@ void SurfaceParams::InitCacheParameters(Tegra::GPUVAddr gpu_addr_) {
}
}
std::size_t SurfaceParams::InnerMemorySize(bool layer_only) const {
std::size_t SurfaceParams::InnerMipmapMemorySize(u32 mip_level, bool force_gl, bool layer_only,
bool uncompressed) const {
const u32 compression_factor{GetCompressionFactor(pixel_format)};
const u32 bytes_per_pixel{GetBytesPerPixel(pixel_format)};
u32 m_depth = (layer_only ? 1U : depth);
u32 m_width = std::max(1U, width / compression_factor);
u32 m_height = std::max(1U, height / compression_factor);
std::size_t size = Tegra::Texture::CalculateSize(is_tiled, bytes_per_pixel, m_width, m_height,
m_depth, block_height, block_depth);
u32 m_block_height = block_height;
u32 m_block_depth = block_depth;
u32 m_width = uncompressed ? width : std::max(1U, width / compression_factor);
u32 m_height = uncompressed ? height : std::max(1U, height / compression_factor);
m_width = std::max(1U, m_width >> mip_level);
m_height = std::max(1U, m_height >> mip_level);
m_depth = std::max(1U, m_depth >> mip_level);
u32 m_block_height = MipBlockHeight(mip_level);
u32 m_block_depth = MipBlockDepth(mip_level);
return Tegra::Texture::CalculateSize(force_gl ? false : is_tiled, bytes_per_pixel, m_width,
m_height, m_depth, m_block_height, m_block_depth);
}
std::size_t SurfaceParams::InnerMemorySize(bool force_gl, bool layer_only,
bool uncompressed) const {
std::size_t block_size_bytes = 512 * block_height * block_depth; // 512 is GOB size
for (u32 i = 1; i < max_mip_level; i++) {
m_width = std::max(1U, m_width / 2);
m_height = std::max(1U, m_height / 2);
m_depth = std::max(1U, m_depth / 2);
m_block_height = std::max(1U, m_block_height / 2);
m_block_depth = std::max(1U, m_block_depth / 2);
size += Tegra::Texture::CalculateSize(is_tiled, bytes_per_pixel, m_width, m_height, m_depth,
m_block_height, m_block_depth);
std::size_t size = 0;
for (u32 i = 0; i < max_mip_level; i++) {
size += InnerMipmapMemorySize(i, force_gl, layer_only, uncompressed);
}
return is_tiled ? Common::AlignUp(size, block_size_bytes) : size;
if (!force_gl && is_tiled) {
size = Common::AlignUp(size, block_size_bytes);
}
return size;
}
/*static*/ SurfaceParams SurfaceParams::CreateForTexture(
@ -188,7 +194,7 @@ std::size_t SurfaceParams::InnerMemorySize(bool layer_only) const {
params.unaligned_height = config.height;
params.target = SurfaceTarget::Texture2D;
params.depth = 1;
params.max_mip_level = 0;
params.max_mip_level = 1;
params.is_layered = false;
// Render target specific parameters, not used for caching
@ -222,7 +228,7 @@ std::size_t SurfaceParams::InnerMemorySize(bool layer_only) const {
params.unaligned_height = zeta_height;
params.target = SurfaceTarget::Texture2D;
params.depth = 1;
params.max_mip_level = 0;
params.max_mip_level = 1;
params.is_layered = false;
params.rt = {};
@ -249,7 +255,7 @@ std::size_t SurfaceParams::InnerMemorySize(bool layer_only) const {
params.unaligned_height = config.height;
params.target = SurfaceTarget::Texture2D;
params.depth = 1;
params.max_mip_level = 0;
params.max_mip_level = 1;
params.rt = {};
params.InitCacheParameters(config.Address());
@ -373,13 +379,13 @@ static const FormatTuple& GetFormatTuple(PixelFormat pixel_format, ComponentType
return format;
}
MathUtil::Rectangle<u32> SurfaceParams::GetRect() const {
u32 actual_height{unaligned_height};
MathUtil::Rectangle<u32> SurfaceParams::GetRect(u32 mip_level) const {
u32 actual_height{std::max(1U, unaligned_height >> mip_level)};
if (IsPixelFormatASTC(pixel_format)) {
// ASTC formats must stop at the ATSC block size boundary
actual_height = Common::AlignDown(actual_height, GetASTCBlockSize(pixel_format).second);
}
return {0, actual_height, width, 0};
return {0, actual_height, MipWidth(mip_level), 0};
}
/// Returns true if the specified PixelFormat is a BCn format, e.g. DXT or DXN
@ -563,28 +569,31 @@ static constexpr GLConversionArray gl_to_morton_fns = {
};
void SwizzleFunc(const GLConversionArray& functions, const SurfaceParams& params,
std::vector<u8>& gl_buffer) {
u32 depth = params.depth;
std::vector<u8>& gl_buffer, u32 mip_level) {
u32 depth = params.MipDepth(mip_level);
if (params.target == SurfaceParams::SurfaceTarget::Texture2D) {
// TODO(Blinkhawk): Eliminate this condition once all texture types are implemented.
depth = 1U;
}
if (params.is_layered) {
u64 offset = 0;
u64 offset = params.GetMipmapLevelOffset(mip_level);
u64 offset_gl = 0;
u64 layer_size = params.LayerMemorySize();
u64 gl_size = params.LayerSizeGL();
for (u32 i = 0; i < depth; i++) {
u64 gl_size = params.LayerSizeGL(mip_level);
for (u32 i = 0; i < params.depth; i++) {
functions[static_cast<std::size_t>(params.pixel_format)](
params.width, params.block_height, params.height, params.block_depth, 1,
params.MipWidth(mip_level), params.MipBlockHeight(mip_level),
params.MipHeight(mip_level), params.MipBlockDepth(mip_level), 1,
gl_buffer.data() + offset_gl, gl_size, params.addr + offset);
offset += layer_size;
offset_gl += gl_size;
}
} else {
u64 offset = params.GetMipmapLevelOffset(mip_level);
functions[static_cast<std::size_t>(params.pixel_format)](
params.width, params.block_height, params.height, params.block_depth, depth,
gl_buffer.data(), gl_buffer.size(), params.addr);
params.MipWidth(mip_level), params.MipBlockHeight(mip_level),
params.MipHeight(mip_level), params.MipBlockDepth(mip_level), depth, gl_buffer.data(),
gl_buffer.size(), params.addr + offset);
}
}
@ -839,29 +848,31 @@ CachedSurface::CachedSurface(const SurfaceParams& params)
// Only pre-create the texture for non-compressed textures.
switch (params.target) {
case SurfaceParams::SurfaceTarget::Texture1D:
glTexStorage1D(SurfaceTargetToGL(params.target), 1, format_tuple.internal_format,
rect.GetWidth());
glTexStorage1D(SurfaceTargetToGL(params.target), params.max_mip_level,
format_tuple.internal_format, rect.GetWidth());
break;
case SurfaceParams::SurfaceTarget::Texture2D:
case SurfaceParams::SurfaceTarget::TextureCubemap:
glTexStorage2D(SurfaceTargetToGL(params.target), 1, format_tuple.internal_format,
rect.GetWidth(), rect.GetHeight());
glTexStorage2D(SurfaceTargetToGL(params.target), params.max_mip_level,
format_tuple.internal_format, rect.GetWidth(), rect.GetHeight());
break;
case SurfaceParams::SurfaceTarget::Texture3D:
case SurfaceParams::SurfaceTarget::Texture2DArray:
glTexStorage3D(SurfaceTargetToGL(params.target), 1, format_tuple.internal_format,
rect.GetWidth(), rect.GetHeight(), params.depth);
glTexStorage3D(SurfaceTargetToGL(params.target), params.max_mip_level,
format_tuple.internal_format, rect.GetWidth(), rect.GetHeight(),
params.depth);
break;
default:
LOG_CRITICAL(Render_OpenGL, "Unimplemented surface target={}",
static_cast<u32>(params.target));
UNREACHABLE();
glTexStorage2D(GL_TEXTURE_2D, 1, format_tuple.internal_format, rect.GetWidth(),
rect.GetHeight());
glTexStorage2D(GL_TEXTURE_2D, params.max_mip_level, format_tuple.internal_format,
rect.GetWidth(), rect.GetHeight());
}
}
glTexParameteri(SurfaceTargetToGL(params.target), GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(SurfaceTargetToGL(params.target), GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(SurfaceTargetToGL(params.target), GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(SurfaceTargetToGL(params.target), GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
@ -992,20 +1003,22 @@ static void ConvertFormatAsNeeded_FlushGLBuffer(std::vector<u8>& data, PixelForm
MICROPROFILE_DEFINE(OpenGL_SurfaceLoad, "OpenGL", "Surface Load", MP_RGB(128, 64, 192));
void CachedSurface::LoadGLBuffer() {
MICROPROFILE_SCOPE(OpenGL_SurfaceLoad);
gl_buffer.resize(params.size_in_bytes_gl);
gl_buffer.resize(params.max_mip_level);
for (u32 i = 0; i < params.max_mip_level; i++)
gl_buffer[i].resize(params.GetMipmapSizeGL(i));
if (params.is_tiled) {
ASSERT_MSG(params.block_width == 1, "Block width is defined as {} on texture type {}",
params.block_width, static_cast<u32>(params.target));
SwizzleFunc(morton_to_gl_fns, params, gl_buffer);
for (u32 i = 0; i < params.max_mip_level; i++)
SwizzleFunc(morton_to_gl_fns, params, gl_buffer[i], i);
} else {
const auto texture_src_data{Memory::GetPointer(params.addr)};
const auto texture_src_data_end{texture_src_data + params.size_in_bytes_gl};
gl_buffer.assign(texture_src_data, texture_src_data_end);
gl_buffer[0].assign(texture_src_data, texture_src_data_end);
}
ConvertFormatAsNeeded_LoadGLBuffer(gl_buffer, params.pixel_format, params.width, params.height);
for (u32 i = 0; i < params.max_mip_level; i++)
ConvertFormatAsNeeded_LoadGLBuffer(gl_buffer[i], params.pixel_format, params.MipWidth(i),
params.MipHeight(i));
}
MICROPROFILE_DEFINE(OpenGL_SurfaceFlush, "OpenGL", "Surface Flush", MP_RGB(128, 192, 64));
@ -1015,7 +1028,8 @@ void CachedSurface::FlushGLBuffer() {
ASSERT_MSG(!IsPixelFormatASTC(params.pixel_format), "Unimplemented");
// OpenGL temporary buffer needs to be big enough to store raw texture size
gl_buffer.resize(GetSizeInBytes());
gl_buffer.resize(1);
gl_buffer[0].resize(GetSizeInBytes());
const FormatTuple& tuple = GetFormatTuple(params.pixel_format, params.component_type);
// Ensure no bad interactions with GL_UNPACK_ALIGNMENT
@ -1023,10 +1037,10 @@ void CachedSurface::FlushGLBuffer() {
glPixelStorei(GL_PACK_ROW_LENGTH, static_cast<GLint>(params.width));
ASSERT(!tuple.compressed);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glGetTextureImage(texture.handle, 0, tuple.format, tuple.type,
static_cast<GLsizei>(gl_buffer.size()), gl_buffer.data());
glGetTextureImage(texture.handle, 0, tuple.format, tuple.type, static_cast<GLsizei>(gl_buffer[0].size()),
gl_buffer[0].data());
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
ConvertFormatAsNeeded_FlushGLBuffer(gl_buffer, params.pixel_format, params.width,
ConvertFormatAsNeeded_FlushGLBuffer(gl_buffer[0], params.pixel_format, params.width,
params.height);
ASSERT(params.type != SurfaceType::Fill);
const u8* const texture_src_data = Memory::GetPointer(params.addr);
@ -1035,26 +1049,21 @@ void CachedSurface::FlushGLBuffer() {
ASSERT_MSG(params.block_width == 1, "Block width is defined as {} on texture type {}",
params.block_width, static_cast<u32>(params.target));
SwizzleFunc(gl_to_morton_fns, params, gl_buffer);
SwizzleFunc(gl_to_morton_fns, params, gl_buffer[0], 0);
} else {
std::memcpy(Memory::GetPointer(GetAddr()), gl_buffer.data(), GetSizeInBytes());
std::memcpy(Memory::GetPointer(GetAddr()), gl_buffer[0].data(), GetSizeInBytes());
}
}
MICROPROFILE_DEFINE(OpenGL_TextureUL, "OpenGL", "Texture Upload", MP_RGB(128, 64, 192));
void CachedSurface::UploadGLTexture(GLuint read_fb_handle, GLuint draw_fb_handle) {
if (params.type == SurfaceType::Fill)
return;
MICROPROFILE_SCOPE(OpenGL_TextureUL);
const auto& rect{params.GetRect()};
void CachedSurface::UploadGLMipmapTexture(u32 mip_map, GLuint read_fb_handle,
GLuint draw_fb_handle) {
const auto& rect{params.GetRect(mip_map)};
// Load data from memory to the surface
const GLint x0 = static_cast<GLint>(rect.left);
const GLint y0 = static_cast<GLint>(rect.bottom);
std::size_t buffer_offset =
static_cast<std::size_t>(static_cast<std::size_t>(y0) * params.width +
static_cast<std::size_t>(static_cast<std::size_t>(y0) * params.MipWidth(mip_map) +
static_cast<std::size_t>(x0)) *
SurfaceParams::GetBytesPerPixel(params.pixel_format);
@ -1072,88 +1081,131 @@ void CachedSurface::UploadGLTexture(GLuint read_fb_handle, GLuint draw_fb_handle
cur_state.Apply();
// Ensure no bad interactions with GL_UNPACK_ALIGNMENT
ASSERT(params.width * SurfaceParams::GetBytesPerPixel(params.pixel_format) % 4 == 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast<GLint>(params.width));
ASSERT(params.MipWidth(mip_map) * SurfaceParams::GetBytesPerPixel(params.pixel_format) % 4 ==
0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast<GLint>(params.MipWidth(mip_map)));
GLsizei image_size = static_cast<GLsizei>(params.GetMipmapSizeGL(mip_map, false));
glActiveTexture(GL_TEXTURE0);
if (tuple.compressed) {
switch (params.target) {
case SurfaceParams::SurfaceTarget::Texture2D:
glCompressedTexImage2D(
SurfaceTargetToGL(params.target), 0, tuple.internal_format,
static_cast<GLsizei>(params.width), static_cast<GLsizei>(params.height), 0,
static_cast<GLsizei>(params.size_in_bytes_gl), &gl_buffer[buffer_offset]);
glCompressedTexImage2D(SurfaceTargetToGL(params.target), mip_map, tuple.internal_format,
static_cast<GLsizei>(params.MipWidth(mip_map)),
static_cast<GLsizei>(params.MipHeight(mip_map)), 0, image_size,
&gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::Texture3D:
case SurfaceParams::SurfaceTarget::Texture2DArray:
glCompressedTexImage3D(
SurfaceTargetToGL(params.target), 0, tuple.internal_format,
static_cast<GLsizei>(params.width), static_cast<GLsizei>(params.height),
static_cast<GLsizei>(params.depth), 0,
static_cast<GLsizei>(params.size_in_bytes_gl), &gl_buffer[buffer_offset]);
glCompressedTexImage3D(SurfaceTargetToGL(params.target), mip_map, tuple.internal_format,
static_cast<GLsizei>(params.MipWidth(mip_map)),
static_cast<GLsizei>(params.MipHeight(mip_map)),
static_cast<GLsizei>(params.MipDepth(mip_map)), 0, image_size,
&gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::TextureCubemap:
case SurfaceParams::SurfaceTarget::Texture2DArray:
glCompressedTexImage3D(SurfaceTargetToGL(params.target), mip_map, tuple.internal_format,
static_cast<GLsizei>(params.MipWidth(mip_map)),
static_cast<GLsizei>(params.MipHeight(mip_map)),
static_cast<GLsizei>(params.depth), 0, image_size,
&gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::TextureCubemap: {
GLsizei layer_size = static_cast<GLsizei>(params.LayerSizeGL(mip_map));
for (std::size_t face = 0; face < params.depth; ++face) {
glCompressedTexImage2D(static_cast<GLenum>(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face),
0, tuple.internal_format, static_cast<GLsizei>(params.width),
static_cast<GLsizei>(params.height), 0,
static_cast<GLsizei>(params.SizeInBytesCubeFaceGL()),
&gl_buffer[buffer_offset]);
buffer_offset += params.SizeInBytesCubeFace();
mip_map, tuple.internal_format,
static_cast<GLsizei>(params.MipWidth(mip_map)),
static_cast<GLsizei>(params.MipHeight(mip_map)), 0,
layer_size, &gl_buffer[mip_map][buffer_offset]);
buffer_offset += layer_size;
}
break;
}
default:
LOG_CRITICAL(Render_OpenGL, "Unimplemented surface target={}",
static_cast<u32>(params.target));
UNREACHABLE();
glCompressedTexImage2D(
GL_TEXTURE_2D, 0, tuple.internal_format, static_cast<GLsizei>(params.width),
static_cast<GLsizei>(params.height), 0,
static_cast<GLsizei>(params.size_in_bytes_gl), &gl_buffer[buffer_offset]);
glCompressedTexImage2D(GL_TEXTURE_2D, mip_map, tuple.internal_format,
static_cast<GLsizei>(params.MipWidth(mip_map)),
static_cast<GLsizei>(params.MipHeight(mip_map)), 0,
static_cast<GLsizei>(params.size_in_bytes_gl),
&gl_buffer[mip_map][buffer_offset]);
}
} else {
switch (params.target) {
case SurfaceParams::SurfaceTarget::Texture1D:
glTexSubImage1D(SurfaceTargetToGL(params.target), 0, x0,
glTexSubImage1D(SurfaceTargetToGL(params.target), mip_map, x0,
static_cast<GLsizei>(rect.GetWidth()), tuple.format, tuple.type,
&gl_buffer[buffer_offset]);
&gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::Texture2D:
glTexSubImage2D(SurfaceTargetToGL(params.target), 0, x0, y0,
glTexSubImage2D(SurfaceTargetToGL(params.target), mip_map, x0, y0,
static_cast<GLsizei>(rect.GetWidth()),
static_cast<GLsizei>(rect.GetHeight()), tuple.format, tuple.type,
&gl_buffer[buffer_offset]);
&gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::Texture3D:
glTexSubImage3D(SurfaceTargetToGL(params.target), mip_map, x0, y0, 0,
static_cast<GLsizei>(rect.GetWidth()),
static_cast<GLsizei>(rect.GetHeight()), params.MipDepth(mip_map),
tuple.format, tuple.type, &gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::Texture2DArray:
glTexSubImage3D(SurfaceTargetToGL(params.target), 0, x0, y0, 0,
glTexSubImage3D(SurfaceTargetToGL(params.target), mip_map, x0, y0, 0,
static_cast<GLsizei>(rect.GetWidth()),
static_cast<GLsizei>(rect.GetHeight()), params.depth, tuple.format,
tuple.type, &gl_buffer[buffer_offset]);
tuple.type, &gl_buffer[mip_map][buffer_offset]);
break;
case SurfaceParams::SurfaceTarget::TextureCubemap:
case SurfaceParams::SurfaceTarget::TextureCubemap: {
std::size_t start = buffer_offset;
for (std::size_t face = 0; face < params.depth; ++face) {
glTexSubImage2D(static_cast<GLenum>(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face), 0, x0,
y0, static_cast<GLsizei>(rect.GetWidth()),
glTexSubImage2D(static_cast<GLenum>(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face), mip_map,
x0, y0, static_cast<GLsizei>(rect.GetWidth()),
static_cast<GLsizei>(rect.GetHeight()), tuple.format, tuple.type,
&gl_buffer[buffer_offset]);
buffer_offset += params.SizeInBytesCubeFace();
&gl_buffer[mip_map][buffer_offset]);
buffer_offset += params.LayerSizeGL(mip_map);
}
break;
}
default:
LOG_CRITICAL(Render_OpenGL, "Unimplemented surface target={}",
static_cast<u32>(params.target));
UNREACHABLE();
glTexSubImage2D(GL_TEXTURE_2D, 0, x0, y0, static_cast<GLsizei>(rect.GetWidth()),
glTexSubImage2D(GL_TEXTURE_2D, mip_map, x0, y0, static_cast<GLsizei>(rect.GetWidth()),
static_cast<GLsizei>(rect.GetHeight()), tuple.format, tuple.type,
&gl_buffer[buffer_offset]);
&gl_buffer[mip_map][buffer_offset]);
}
}
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
}
MICROPROFILE_DEFINE(OpenGL_TextureUL, "OpenGL", "Texture Upload", MP_RGB(128, 64, 192));
void CachedSurface::UploadGLTexture(GLuint read_fb_handle, GLuint draw_fb_handle) {
if (params.type == SurfaceType::Fill)
return;
MICROPROFILE_SCOPE(OpenGL_TextureUL);
for (u32 i = 0; i < params.max_mip_level; i++)
UploadGLMipmapTexture(i, read_fb_handle, draw_fb_handle);
if (params.max_mip_level == 1) {
const GLuint target_tex = texture.handle;
OpenGLState cur_state = OpenGLState::GetCurState();
const auto& old_tex = cur_state.texture_units[0];
SCOPE_EXIT({
cur_state.texture_units[0] = old_tex;
cur_state.Apply();
});
cur_state.texture_units[0].texture = target_tex;
cur_state.texture_units[0].target = SurfaceTargetToGL(params.target);
cur_state.Apply();
glGenerateMipmap(SurfaceTargetToGL(params.target));
}
}
RasterizerCacheOpenGL::RasterizerCacheOpenGL() {
read_framebuffer.Create();
draw_framebuffer.Create();

72
src/video_core/renderer_opengl/gl_rasterizer_cache.h
View file

@ -834,7 +834,7 @@ struct SurfaceParams {
}
/// Returns the rectangle corresponding to this surface
MathUtil::Rectangle<u32> GetRect() const;
MathUtil::Rectangle<u32> GetRect(u32 mip_level = 0) const;
/// Returns the total size of this surface in bytes, adjusted for compression
std::size_t SizeInBytesRaw(bool ignore_tiled = false) const {
@ -865,7 +865,7 @@ struct SurfaceParams {
/// Returns the exact size of memory occupied by the texture in VRAM, including mipmaps.
std::size_t MemorySize() const {
std::size_t size = InnerMemorySize(is_layered);
std::size_t size = InnerMemorySize(false, is_layered);
if (is_layered)
return size * depth;
return size;
@ -874,12 +874,65 @@ struct SurfaceParams {
/// Returns the exact size of the memory occupied by a layer in a texture in VRAM, including
/// mipmaps.
std::size_t LayerMemorySize() const {
return InnerMemorySize(true);
return InnerMemorySize(false, true);
}
/// Returns the size of a layer of this surface in OpenGL.
std::size_t LayerSizeGL() const {
return SizeInBytesRaw(true) / depth;
std::size_t LayerSizeGL(u32 mip_level) const {
return InnerMipmapMemorySize(mip_level, true, is_layered, false);
}
std::size_t GetMipmapSizeGL(u32 mip_level, bool ignore_compressed = true) const {
std::size_t size = InnerMipmapMemorySize(mip_level, true, is_layered, ignore_compressed);
if (is_layered)
return size * depth;
return size;
}
std::size_t GetMipmapLevelOffset(u32 mip_level) const {
std::size_t offset = 0;
for (u32 i = 0; i < mip_level; i++)
offset += InnerMipmapMemorySize(i, false, is_layered);
return offset;
}
std::size_t GetMipmapLevelOffsetGL(u32 mip_level) const {
std::size_t offset = 0;
for (u32 i = 0; i < mip_level; i++)
offset += InnerMipmapMemorySize(i, true, is_layered);
return offset;
}
u32 MipWidth(u32 mip_level) const {
return std::max(1U, width >> mip_level);
}
u32 MipHeight(u32 mip_level) const {
return std::max(1U, height >> mip_level);
}
u32 MipDepth(u32 mip_level) const {
return std::max(1U, depth >> mip_level);
}
u32 MipBlockHeight(u32 mip_level) const {
u32 height = MipHeight(mip_level);
u32 bh = block_height;
// Magical block resizing algorithm, needs more testing.
while (bh != 1 && height / bh <= 16) {
bh = bh >> 1;
}
return bh;
}
u32 MipBlockDepth(u32 mip_level) const {
u32 depth = MipDepth(mip_level);
u32 bd = block_depth;
// Magical block resizing algorithm, needs more testing.
while (bd != 1 && depth / bd <= 16) {
bd = bd >> 1;
}
return bd;
}
/// Creates SurfaceParams from a texture configuration
@ -940,7 +993,10 @@ struct SurfaceParams {
} rt;
private:
std::size_t InnerMemorySize(bool layer_only = false) const;
std::size_t InnerMipmapMemorySize(u32 mip_level, bool force_gl = false, bool layer_only = false,
bool uncompressed = false) const;
std::size_t InnerMemorySize(bool force_gl = false, bool layer_only = false,
bool uncompressed = false) const;
};
}; // namespace OpenGL
@ -1002,8 +1058,10 @@ public:
void UploadGLTexture(GLuint read_fb_handle, GLuint draw_fb_handle);
private:
void UploadGLMipmapTexture(u32 mip_map, GLuint read_fb_handle, GLuint draw_fb_handle);
OGLTexture texture;
std::vector<u8> gl_buffer;
std::vector<std::vector<u8>> gl_buffer;
SurfaceParams params;
GLenum gl_target;
std::size_t cached_size_in_bytes;