diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_texture.cc')
| -rw-r--r-- | source/blender/gpu/intern/gpu_texture.cc | 80 |
1 files changed, 70 insertions, 10 deletions
diff --git a/source/blender/gpu/intern/gpu_texture.cc b/source/blender/gpu/intern/gpu_texture.cc index da5f08f003e..9e6a6f75391 100644 --- a/source/blender/gpu/intern/gpu_texture.cc +++ b/source/blender/gpu/intern/gpu_texture.cc @@ -52,11 +52,13 @@ Texture::~Texture() #endif } -bool Texture::init_1D(int w, int layers, eGPUTextureFormat format) +bool Texture::init_1D(int w, int layers, int mips, eGPUTextureFormat format) { w_ = w; h_ = layers; d_ = 0; + int mips_max = 1 + floorf(log2f(w)); + mipmaps_ = min_ii(mips, mips_max); format_ = format; format_flag_ = to_format_flag(format); type_ = (layers > 0) ? GPU_TEXTURE_1D_ARRAY : GPU_TEXTURE_1D; @@ -66,11 +68,13 @@ bool Texture::init_1D(int w, int layers, eGPUTextureFormat format) return this->init_internal(); } -bool Texture::init_2D(int w, int h, int layers, eGPUTextureFormat format) +bool Texture::init_2D(int w, int h, int layers, int mips, eGPUTextureFormat format) { w_ = w; h_ = h; d_ = layers; + int mips_max = 1 + floorf(log2f(max_ii(w, h))); + mipmaps_ = min_ii(mips, mips_max); format_ = format; format_flag_ = to_format_flag(format); type_ = (layers > 0) ? GPU_TEXTURE_2D_ARRAY : GPU_TEXTURE_2D; @@ -80,11 +84,13 @@ bool Texture::init_2D(int w, int h, int layers, eGPUTextureFormat format) return this->init_internal(); } -bool Texture::init_3D(int w, int h, int d, eGPUTextureFormat format) +bool Texture::init_3D(int w, int h, int d, int mips, eGPUTextureFormat format) { w_ = w; h_ = h; d_ = d; + int mips_max = 1 + floorf(log2f(max_iii(w, h, d))); + mipmaps_ = min_ii(mips, mips_max); format_ = format; format_flag_ = to_format_flag(format); type_ = GPU_TEXTURE_3D; @@ -94,11 +100,13 @@ bool Texture::init_3D(int w, int h, int d, eGPUTextureFormat format) return this->init_internal(); } -bool Texture::init_cubemap(int w, int layers, eGPUTextureFormat format) +bool Texture::init_cubemap(int w, int layers, int mips, eGPUTextureFormat format) { w_ = w; h_ = w; d_ = max_ii(1, layers) * 6; + int mips_max = 1 + floorf(log2f(w)); + mipmaps_ = min_ii(mips, mips_max); format_ = format; format_flag_ = to_format_flag(format); type_ = (layers > 0) ? GPU_TEXTURE_CUBE_ARRAY : GPU_TEXTURE_CUBE; @@ -123,6 +131,42 @@ bool Texture::init_buffer(GPUVertBuf *vbo, eGPUTextureFormat format) return this->init_internal(vbo); } +bool Texture::init_view(const GPUTexture *src_, + eGPUTextureFormat format, + int mip_start, + int mip_len, + int layer_start, + int layer_len) +{ + const Texture *src = unwrap(src_); + w_ = src->w_; + h_ = src->h_; + d_ = src->d_; + switch (type_) { + case GPU_TEXTURE_1D_ARRAY: + h_ = layer_len; + break; + case GPU_TEXTURE_CUBE_ARRAY: + BLI_assert(layer_len % 6 == 0); + ATTR_FALLTHROUGH; + case GPU_TEXTURE_2D_ARRAY: + d_ = layer_len; + break; + default: + BLI_assert(layer_len == 1 && layer_start == 0); + break; + } + mip_start = min_ii(mip_start, src->mipmaps_ - 1); + mip_len = min_ii(mip_len, (src->mipmaps_ - mip_start)); + mipmaps_ = mip_len; + format_ = format; + format_flag_ = to_format_flag(format); + /* For now always copy the target. Target aliasing could be exposed later. */ + type_ = src->type_; + sampler_state = src->sampler_state; + return this->init_internal(src_, mip_start, layer_start); +} + /** \} */ /* -------------------------------------------------------------------- */ @@ -187,28 +231,29 @@ static inline GPUTexture *gpu_texture_create(const char *name, const int h, const int d, const eGPUTextureType type, - int UNUSED(mips), + int mips, eGPUTextureFormat tex_format, eGPUDataFormat data_format, const void *pixels) { + BLI_assert(mips > 0); Texture *tex = GPUBackend::get()->texture_alloc(name); bool success = false; switch (type) { case GPU_TEXTURE_1D: case GPU_TEXTURE_1D_ARRAY: - success = tex->init_1D(w, h, tex_format); + success = tex->init_1D(w, h, mips, tex_format); break; case GPU_TEXTURE_2D: case GPU_TEXTURE_2D_ARRAY: - success = tex->init_2D(w, h, d, tex_format); + success = tex->init_2D(w, h, d, mips, tex_format); break; case GPU_TEXTURE_3D: - success = tex->init_3D(w, h, d, tex_format); + success = tex->init_3D(w, h, d, mips, tex_format); break; case GPU_TEXTURE_CUBE: case GPU_TEXTURE_CUBE_ARRAY: - success = tex->init_cubemap(w, d, tex_format); + success = tex->init_cubemap(w, d, mips, tex_format); break; default: break; @@ -286,7 +331,7 @@ GPUTexture *GPU_texture_create_compressed_2d( const char *name, int w, int h, int miplen, eGPUTextureFormat tex_format, const void *data) { Texture *tex = GPUBackend::get()->texture_alloc(name); - bool success = tex->init_2D(w, h, 0, tex_format); + bool success = tex->init_2D(w, h, 0, miplen, tex_format); if (!success) { delete tex; @@ -334,6 +379,21 @@ GPUTexture *GPU_texture_create_error(int dimension, bool is_array) return gpu_texture_create("invalid_tex", w, h, d, type, 1, GPU_RGBA8, GPU_DATA_FLOAT, pixel); } +GPUTexture *GPU_texture_create_view(const char *name, + const GPUTexture *src, + eGPUTextureFormat format, + int mip_start, + int mip_len, + int layer_start, + int layer_len) +{ + BLI_assert(mip_len > 0); + BLI_assert(layer_len > 0); + Texture *view = GPUBackend::get()->texture_alloc(name); + view->init_view(src, format, mip_start, mip_len, layer_start, layer_len); + return wrap(view); +} + /* ------ Update ------ */ void GPU_texture_update_mipmap(GPUTexture *tex_, |