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xenia-canary/third_party/crunch/crnlib/crn_texture_conversion.cpp

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Adding Crunch at r319.
2014-01-21 07:02:34 +00:00
// File: crn_texture_conversion.cpp
// See Copyright Notice and license at the end of inc/crnlib.h
#include "crn_core.h"
#include "crn_texture_conversion.h"
#include "crn_console.h"
#include "crn_file_utils.h"
#include "crn_cfile_stream.h"
#include "crn_image_utils.h"
#include "crn_texture_comp.h"
#include "crn_strutils.h"
namespace crnlib
{
namespace texture_conversion
{
struct progress_params
{
convert_params* m_pParams;
uint m_start_percentage;
bool m_canceled;
};
convert_stats::convert_stats()
{
clear();
}
bool convert_stats::init(
const char* pSrc_filename,
const char* pDst_filename,
mipmapped_texture& src_tex,
texture_file_types::format dst_file_type,
bool lzma_stats)
{
m_src_filename = pSrc_filename;
m_dst_filename = pDst_filename;
m_dst_file_type = dst_file_type;
m_pInput_tex = &src_tex;
file_utils::get_file_size(pSrc_filename, m_input_file_size);
file_utils::get_file_size(pDst_filename, m_output_file_size);
m_total_input_pixels = 0;
for (uint i = 0; i < src_tex.get_num_levels(); i++)
{
uint width = math::maximum<uint>(1, src_tex.get_width() >> i);
uint height = math::maximum<uint>(1, src_tex.get_height() >> i);
m_total_input_pixels += width*height*src_tex.get_num_faces();
}
m_output_comp_file_size = 0;
m_total_output_pixels = 0;
if (lzma_stats)
{
vector<uint8> dst_tex_bytes;
if (!cfile_stream::read_file_into_array(pDst_filename, dst_tex_bytes))
{
console::error("Failed loading output file: %s", pDst_filename);
return false;
}
if (!dst_tex_bytes.size())
{
console::error("Output file is empty: %s", pDst_filename);
return false;
}
vector<uint8> cmp_tex_bytes;
lzma_codec lossless_codec;
if (lossless_codec.pack(dst_tex_bytes.get_ptr(), dst_tex_bytes.size(), cmp_tex_bytes))
{
m_output_comp_file_size = cmp_tex_bytes.size();
}
}
if (!m_output_tex.read_from_file(pDst_filename, m_dst_file_type))
{
console::error("Failed loading output file: %s", pDst_filename);
return false;
}
for (uint i = 0; i < m_output_tex.get_num_levels(); i++)
{
uint width = math::maximum<uint>(1, m_output_tex.get_width() >> i);
uint height = math::maximum<uint>(1, m_output_tex.get_height() >> i);
m_total_output_pixels += width*height*m_output_tex.get_num_faces();
}
CRNLIB_ASSERT(m_total_output_pixels == m_output_tex.get_total_pixels_in_all_faces_and_mips());
return true;
}
bool convert_stats::print(bool psnr_metrics, bool mip_stats, bool grayscale_sampling, const char *pCSVStatsFile) const
{
if (!m_pInput_tex)
return false;
console::info("Input texture: %ux%u, Levels: %u, Faces: %u, Format: %s",
m_pInput_tex->get_width(),
m_pInput_tex->get_height(),
m_pInput_tex->get_num_levels(),
m_pInput_tex->get_num_faces(),
pixel_format_helpers::get_pixel_format_string(m_pInput_tex->get_format()));
// Just casting the uint64's filesizes to uint32 here to work around gcc issues - it's not even possible to have files that large anyway.
console::info("Input pixels: %u, Input file size: %u, Input bits/pixel: %1.3f",
m_total_input_pixels, (uint32)m_input_file_size, (m_input_file_size * 8.0f) / m_total_input_pixels);
console::info("Output texture: %ux%u, Levels: %u, Faces: %u, Format: %s",
m_output_tex.get_width(),
m_output_tex.get_height(),
m_output_tex.get_num_levels(),
m_output_tex.get_num_faces(),
pixel_format_helpers::get_pixel_format_string(m_output_tex.get_format()));
console::info("Output pixels: %u, Output file size: %u, Output bits/pixel: %1.3f",
m_total_output_pixels, (uint32)m_output_file_size, (m_output_file_size * 8.0f) / m_total_output_pixels);
if (m_output_comp_file_size)
{
console::info("LZMA compressed output file size: %u bytes, %1.3f bits/pixel",
(uint32)m_output_comp_file_size, (m_output_comp_file_size * 8.0f) / m_total_output_pixels);
}
if (psnr_metrics)
{
if ( (m_pInput_tex->get_width() != m_output_tex.get_width()) || (m_pInput_tex->get_height() != m_output_tex.get_height()) || (m_pInput_tex->get_num_faces() != m_output_tex.get_num_faces()) )
{
console::warning("Unable to compute image statistics - input/output texture dimensions are different.");
}
else
{
uint num_faces = math::minimum(m_pInput_tex->get_num_faces(), m_output_tex.get_num_faces());
uint num_levels = math::minimum(m_pInput_tex->get_num_levels(), m_output_tex.get_num_levels());
if (!mip_stats)
num_levels = 1;
for (uint face = 0; face < num_faces; face++)
{
for (uint level = 0; level < num_levels; level++)
{
image_u8 a, b;
image_u8* pA = m_pInput_tex->get_level_image(face, level, a);
image_u8* pB = m_output_tex.get_level_image(face, level, b);
if (pA && pB)
{
image_u8 grayscale_a, grayscale_b;
if (grayscale_sampling)
{
grayscale_a = *pA;
grayscale_a.convert_to_grayscale();
pA = &grayscale_a;
grayscale_b = *pB;
grayscale_b.convert_to_grayscale();
pB = &grayscale_b;
}
console::info("Face %u Mipmap level %u statistics:", face, level);
image_utils::print_image_metrics(*pA, *pB);
if ((pA->has_rgb()) || (pB->has_rgb()))
image_utils::print_ssim(*pA, *pB);
}
}
}
if (pCSVStatsFile)
{
// FIXME: This is kind of a hack, and should be combined with the code above.
image_u8 a, b;
image_u8* pA = m_pInput_tex->get_level_image(0, 0, a);
image_u8* pB = m_output_tex.get_level_image(0, 0, b);
if (pA && pB)
{
image_u8 grayscale_a, grayscale_b;
if (grayscale_sampling)
{
grayscale_a = *pA;
grayscale_a.convert_to_grayscale();
pA = &grayscale_a;
grayscale_b = *pB;
grayscale_b.convert_to_grayscale();
pB = &grayscale_b;
}
image_utils::error_metrics rgb_error;
image_utils::error_metrics luma_error;
if (rgb_error.compute(*pA, *pB, 0, 3, false) && luma_error.compute(*pA, *pB, 0, 0, true))
{
bool bCSVStatsFileExists = file_utils::does_file_exist(pCSVStatsFile);
FILE* pFile;
crn_fopen(&pFile, pCSVStatsFile, "a");
if (!pFile)
console::warning("Unable to append to CSV stats file: %s\n", pCSVStatsFile);
else
{
if (!bCSVStatsFileExists)
fprintf(pFile, "name,width,height,miplevels,rgb_rms,luma_rms,effective_output_size,effective_bitrate\n");
dynamic_string filename;
file_utils::split_path(m_src_filename.get_ptr(), NULL, NULL, &filename, NULL);
uint64 effective_output_size = m_output_comp_file_size ? m_output_comp_file_size : m_output_file_size;
float bitrate = (effective_output_size * 8.0f) / m_total_output_pixels;
fprintf(pFile, "%s,%u,%u,%u,%f,%f,%u,%f\n",
filename.get_ptr(),
pB->get_width(), pB->get_height(), m_output_tex.get_num_levels(),
rgb_error.mRootMeanSquared, luma_error.mRootMeanSquared,
(uint32)effective_output_size, bitrate);
fclose(pFile);
}
}
}
}
}
}
return true;
}
void convert_stats::clear()
{
m_src_filename.clear();
m_dst_filename.clear();
m_dst_file_type = texture_file_types::cFormatInvalid;
m_pInput_tex = NULL;
m_output_tex.clear();
m_input_file_size = 0;
m_total_input_pixels = 0;
m_output_file_size = 0;
m_total_output_pixels = 0;
m_output_comp_file_size = 0;
}
//-----------------------------------------------------------------------
static crn_bool crn_progress_callback(crn_uint32 phase_index, crn_uint32 total_phases, crn_uint32 subphase_index, crn_uint32 total_subphases, void* pUser_data_ptr)
{
progress_params& params = *static_cast<progress_params*>(pUser_data_ptr);
if (params.m_canceled)
return false;
if (!params.m_pParams->m_pProgress_func)
return true;
int percentage_complete = params.m_start_percentage + (int)(.5f + (phase_index + float(subphase_index) / total_subphases) * (100.0f - params.m_start_percentage) / total_phases);
percentage_complete = math::clamp<int>(percentage_complete, 0, 100);
if (!params.m_pParams->m_pProgress_func(percentage_complete, params.m_pParams->m_pProgress_user_data))
{
params.m_canceled = true;
return false;
}
return true;
}
static bool dxt_progress_callback_func(uint percentage_complete, void* pUser_data_ptr)
{
progress_params& params = *static_cast<progress_params*>(pUser_data_ptr);
if (params.m_canceled)
return false;
if (!params.m_pParams->m_pProgress_func)
return true;
int scaled_percentage_complete = params.m_start_percentage + (percentage_complete * (100 - params.m_start_percentage)) / 100;
scaled_percentage_complete = math::clamp<int>(scaled_percentage_complete, 0, 100);
if (!params.m_pParams->m_pProgress_func(scaled_percentage_complete, params.m_pParams->m_pProgress_user_data))
{
params.m_canceled = true;
return false;
}
return true;
}
static bool convert_error(const convert_params& params, const char* pError_msg)
{
params.m_status = false;
params.m_error_message = pError_msg;
remove(params.m_dst_filename.get_ptr());
return false;
}
static pixel_format choose_pixel_format(convert_params& params, const crn_comp_params &comp_params, const mipmapped_texture& src_tex, texture_type tex_type)
{
const pixel_format src_fmt = src_tex.get_format();
const texture_file_types::format src_file_type = src_tex.get_source_file_type();
const bool is_normal_map = (tex_type == cTextureTypeNormalMap);
if (params.m_always_use_source_pixel_format)
return src_fmt;
// Attempt to choose a reasonable/sane output pixel format.
if (params.m_dst_file_type == texture_file_types::cFormatCRN)
{
if (is_normal_map)
{
if (pixel_format_helpers::is_dxt(src_fmt))
return src_fmt;
else
return PIXEL_FMT_DXT5_AGBR;
}
}
else if (params.m_dst_file_type == texture_file_types::cFormatKTX)
{
if ((src_file_type != texture_file_types::cFormatCRN) && (src_file_type != texture_file_types::cFormatKTX) && (src_file_type != texture_file_types::cFormatDDS))
{
if (is_normal_map)
{
return pixel_format_helpers::has_alpha(src_fmt) ? PIXEL_FMT_A8R8G8B8 : PIXEL_FMT_R8G8B8;
}
else if (pixel_format_helpers::is_grayscale(src_fmt))
{
if (pixel_format_helpers::has_alpha(src_fmt))
return PIXEL_FMT_A8L8;
else
return PIXEL_FMT_ETC1;
}
else if (pixel_format_helpers::has_alpha(src_fmt))
return PIXEL_FMT_A8R8G8B8;
else
return PIXEL_FMT_ETC1;
}
}
else if (params.m_dst_file_type == texture_file_types::cFormatDDS)
{
if ((src_file_type != texture_file_types::cFormatCRN) && (src_file_type != texture_file_types::cFormatKTX) && (src_file_type != texture_file_types::cFormatDDS))
{
if (is_normal_map)
{
return PIXEL_FMT_DXT5_AGBR;
}
else if (pixel_format_helpers::is_grayscale(src_fmt))
{
if (pixel_format_helpers::has_alpha(src_fmt))
return comp_params.get_flag(cCRNCompFlagDXT1AForTransparency) ? PIXEL_FMT_DXT1A : PIXEL_FMT_DXT5;
else
return PIXEL_FMT_DXT1;
}
else if (pixel_format_helpers::has_alpha(src_fmt))
return comp_params.get_flag(cCRNCompFlagDXT1AForTransparency) ? PIXEL_FMT_DXT1A : PIXEL_FMT_DXT5;
else
return PIXEL_FMT_DXT1;
}
}
else
{
// Destination is a regular image format.
if (pixel_format_helpers::is_grayscale(src_fmt))
{
if (pixel_format_helpers::has_alpha(src_fmt))
return PIXEL_FMT_A8L8;
else
return PIXEL_FMT_L8;
}
else if (pixel_format_helpers::has_alpha(src_fmt))
return PIXEL_FMT_A8R8G8B8;
else
return PIXEL_FMT_R8G8B8;
}
return src_fmt;
}
static void print_comp_params(const crn_comp_params &comp_params)
{
console::debug("\nTexture conversion compression parameters:");
console::debug(" Desired bitrate: %3.3f", comp_params.m_target_bitrate);
console::debug(" CRN Quality: %i", comp_params.m_quality_level);
console::debug("CRN C endpoints/selectors: %u %u", comp_params.m_crn_color_endpoint_palette_size, comp_params.m_crn_color_selector_palette_size);
console::debug("CRN A endpoints/selectors: %u %u", comp_params.m_crn_alpha_endpoint_palette_size, comp_params.m_crn_alpha_selector_palette_size);
console::debug(" DXT both block types: %u, Alpha threshold: %u", comp_params.get_flag(cCRNCompFlagUseBothBlockTypes), comp_params.m_dxt1a_alpha_threshold);
console::debug(" DXT compression quality: %s", crn_get_dxt_quality_string(comp_params.m_dxt_quality));
console::debug(" Perceptual: %u, Large Blocks: %u", comp_params.get_flag(cCRNCompFlagPerceptual), comp_params.get_flag(cCRNCompFlagHierarchical));
console::debug(" Compressor: %s", get_dxt_compressor_name(comp_params.m_dxt_compressor_type));
console::debug(" Disable endpoint caching: %u", comp_params.get_flag(cCRNCompFlagDisableEndpointCaching));
console::debug(" Grayscale sampling: %u", comp_params.get_flag(cCRNCompFlagGrayscaleSampling));
console::debug(" Max helper threads: %u", comp_params.m_num_helper_threads);
console::debug("");
}
static void print_mipmap_params(const crn_mipmap_params &mipmap_params)
{
console::debug("\nTexture conversion MIP-map parameters:");
console::debug(" Mode: %s", crn_get_mip_mode_name(mipmap_params.m_mode));
console::debug(" Filter: %s", crn_get_mip_filter_name(mipmap_params.m_filter));
console::debug("Gamma filtering: %u, Gamma: %2.2f", mipmap_params.m_gamma_filtering, mipmap_params.m_gamma);
console::debug(" Blurriness: %2.2f", mipmap_params.m_blurriness);
console::debug(" Renormalize: %u", mipmap_params.m_renormalize);
console::debug(" Tiled: %u", mipmap_params.m_tiled);
console::debug(" Max Levels: %u", mipmap_params.m_max_levels);
console::debug(" Min level size: %u", mipmap_params.m_min_mip_size);
console::debug(" window: %u %u %u %u", mipmap_params.m_window_left, mipmap_params.m_window_top, mipmap_params.m_window_right, mipmap_params.m_window_bottom);
console::debug(" scale mode: %s", crn_get_scale_mode_desc(mipmap_params.m_scale_mode));
console::debug(" scale: %f %f", mipmap_params.m_scale_x, mipmap_params.m_scale_y);
console::debug(" clamp: %u %u, clamp_scale: %u", mipmap_params.m_clamp_width, mipmap_params.m_clamp_height, mipmap_params.m_clamp_scale);
console::debug("");
}
void convert_params::print()
{
console::debug("\nTexture conversion parameters:");
console::debug(" Resolution: %ux%u, Faces: %u, Levels: %u, Format: %s, X Flipped: %u, Y Flipped: %u",
m_pInput_texture->get_width(),
m_pInput_texture->get_height(),
m_pInput_texture->get_num_faces(),
m_pInput_texture->get_num_levels(),
pixel_format_helpers::get_pixel_format_string(m_pInput_texture->get_format()),
m_pInput_texture->is_x_flipped(),
m_pInput_texture->is_y_flipped());
console::debug(" texture_type: %s", get_texture_type_desc(m_texture_type));
console::debug(" dst_filename: %s", m_dst_filename.get_ptr());
console::debug(" dst_file_type: %s", texture_file_types::get_extension(m_dst_file_type));
console::debug(" dst_format: %s", pixel_format_helpers::get_pixel_format_string(m_dst_format));
console::debug(" quick: %u", m_quick);
console::debug(" use_source_format: %u", m_always_use_source_pixel_format);
console::debug(" Y Flip: %u", m_y_flip);
console::debug(" Unflip: %u", m_unflip);
}
static bool write_compressed_texture(
mipmapped_texture& work_tex, convert_params& params, crn_comp_params &comp_params, pixel_format dst_format, progress_params& progress_state, bool perceptual, convert_stats &stats)
{
comp_params.m_file_type = (params.m_dst_file_type == texture_file_types::cFormatCRN) ? cCRNFileTypeCRN : cCRNFileTypeDDS;
comp_params.m_pProgress_func = crn_progress_callback;
comp_params.m_pProgress_func_data = &progress_state;
comp_params.set_flag(cCRNCompFlagPerceptual, perceptual);
crn_format crn_fmt = pixel_format_helpers::convert_pixel_format_to_best_crn_format(dst_format);
comp_params.m_format = crn_fmt;
console::message("Writing %s texture to file: \"%s\"", crn_get_format_string(crn_fmt), params.m_dst_filename.get_ptr());
uint32 actual_quality_level;
float actual_bitrate;
bool status = work_tex.write_to_file(params.m_dst_filename.get_ptr(), params.m_dst_file_type, &comp_params, &actual_quality_level, &actual_bitrate);
if (!status)
return convert_error(params, "Failed writing output file!");
if (!params.m_no_stats)
{
if (!stats.init(params.m_pInput_texture->get_source_filename().get_ptr(), params.m_dst_filename.get_ptr(), *params.m_pIntermediate_texture, params.m_dst_file_type, params.m_lzma_stats))
{
console::warning("Unable to compute output statistics for file: %s", params.m_pInput_texture->get_source_filename().get_ptr());
}
}
return true;
}
static bool convert_and_write_normal_texture(mipmapped_texture& work_tex, convert_params& params, const crn_comp_params &comp_params, pixel_format dst_format, progress_params& progress_state, bool formats_differ, bool perceptual, convert_stats& stats)
{
if (formats_differ)
{
dxt_image::pack_params pack_params;
pack_params.m_perceptual = perceptual;
pack_params.m_compressor = comp_params.m_dxt_compressor_type;
pack_params.m_pProgress_callback = dxt_progress_callback_func;
pack_params.m_pProgress_callback_user_data_ptr = &progress_state;
pack_params.m_dxt1a_alpha_threshold = comp_params.m_dxt1a_alpha_threshold;
pack_params.m_quality = comp_params.m_dxt_quality;
pack_params.m_endpoint_caching = !comp_params.get_flag(cCRNCompFlagDisableEndpointCaching);
pack_params.m_grayscale_sampling = comp_params.get_flag(cCRNCompFlagGrayscaleSampling);
if ((!comp_params.get_flag(cCRNCompFlagUseBothBlockTypes)) && (!comp_params.get_flag(cCRNCompFlagDXT1AForTransparency)))
pack_params.m_use_both_block_types = false;
pack_params.m_num_helper_threads = comp_params.m_num_helper_threads;
pack_params.m_use_transparent_indices_for_black = comp_params.get_flag(cCRNCompFlagUseTransparentIndicesForBlack);
console::info("Converting texture format from %s to %s", pixel_format_helpers::get_pixel_format_string(work_tex.get_format()), pixel_format_helpers::get_pixel_format_string(dst_format));
timer tm;
tm.start();
bool status = work_tex.convert(dst_format, pack_params);
double t = tm.get_elapsed_secs();
console::info("");
if (!status)
{
if (progress_state.m_canceled)
{
params.m_canceled = true;
return false;
}
else
{
return convert_error(params, "Failed converting texture to output format!");
}
}
console::info("Texture format conversion took %3.3fs", t);
}
if (params.m_write_mipmaps_to_multiple_files)
{
for (uint f = 0; f < work_tex.get_num_faces(); f++)
{
for (uint l = 0; l < work_tex.get_num_levels(); l++)
{
dynamic_string filename(params.m_dst_filename.get_ptr());
dynamic_string drv, dir, fn, ext;
if (!file_utils::split_path(params.m_dst_filename.get_ptr(), &drv, &dir, &fn, &ext))
return false;
fn += dynamic_string(cVarArg, "_face%u_mip%u", f, l).get_ptr();
filename = drv + dir + fn + ext;
mip_level *pLevel = work_tex.get_level(f, l);
face_vec face(1);
face[0].push_back(crnlib_new<mip_level>(*pLevel));
mipmapped_texture new_tex;
new_tex.assign(face);
console::info("Writing texture face %u mip level %u to file %s", f, l, filename.get_ptr());
if (!new_tex.write_to_file(filename.get_ptr(), params.m_dst_file_type, NULL, NULL, NULL))
return convert_error(params, "Failed writing output file!");
}
}
}
else
{
console::message("Writing texture to file: \"%s\"", params.m_dst_filename.get_ptr());
if (!work_tex.write_to_file(params.m_dst_filename.get_ptr(), params.m_dst_file_type, NULL, NULL, NULL))
return convert_error(params, "Failed writing output file!");
if (!params.m_no_stats)
{
if (!stats.init(params.m_pInput_texture->get_source_filename().get_ptr(), params.m_dst_filename.get_ptr(), *params.m_pIntermediate_texture, params.m_dst_file_type, params.m_lzma_stats))
{
console::warning("Unable to compute output statistics for file: %s", params.m_pInput_texture->get_source_filename().get_ptr());
}
}
}
return true;
}
bool process(convert_params& params, convert_stats& stats)
{
texture_type tex_type = params.m_texture_type;
crn_comp_params comp_params(params.m_comp_params);
crn_mipmap_params mipmap_params(params.m_mipmap_params);
progress_params progress_state;
progress_state.m_pParams = &params;
progress_state.m_canceled = false;
progress_state.m_start_percentage = 0;
params.m_status = false;
params.m_error_message.clear();
if (params.m_pIntermediate_texture)
{
crnlib_delete(params.m_pIntermediate_texture);
params.m_pIntermediate_texture = NULL;
}
params.m_pIntermediate_texture = crnlib_new<mipmapped_texture>(*params.m_pInput_texture);
mipmapped_texture& work_tex = *params.m_pInput_texture;
if ((params.m_unflip) && (work_tex.is_flipped()))
{
console::info("Unflipping texture");
work_tex.unflip(true, true);
}
if (params.m_y_flip)
{
console::info("Flipping texture on Y axis");
// This is awkward - if we're writing to KTX, then go ahead and properly update the work texture's orientation flags.
// Otherwise, don't bother updating the orientation flags because the writer may then attempt to unflip the texture before writing to formats
// that don't support flipped textures (ugh).
const bool bOutputFormatSupportsFlippedTextures = params.m_dst_file_type == texture_file_types::cFormatKTX;
if (!work_tex.flip_y(bOutputFormatSupportsFlippedTextures))
{
console::warning("Failed flipping texture on Y axis");
}
}
if ((params.m_dst_format != PIXEL_FMT_INVALID) && (pixel_format_helpers::is_alpha_only(params.m_dst_format)))
{
if ((work_tex.get_comp_flags() & pixel_format_helpers::cCompFlagAValid) == 0)
{
console::warning("Output format is alpha-only, but input doesn't have alpha, so setting alpha to luminance.");
work_tex.convert(PIXEL_FMT_A8, crnlib::dxt_image::pack_params());
if (tex_type == cTextureTypeNormalMap)
tex_type = cTextureTypeRegularMap;
}
}
pixel_format dst_format = params.m_dst_format;
if (pixel_format_helpers::is_dxt(dst_format))
{
if ((params.m_dst_file_type != texture_file_types::cFormatCRN) &&
(params.m_dst_file_type != texture_file_types::cFormatDDS) &&
(params.m_dst_file_type != texture_file_types::cFormatKTX))
{
console::warning("Output file format does not support DXTc - automatically choosing a non-DXT pixel format.");
dst_format = PIXEL_FMT_INVALID;
}
}
if (dst_format == PIXEL_FMT_INVALID)
{
// Caller didn't specify a format to use, so try to pick something reasonable.
// This is actually much trickier than it seems, and the current approach kind of sucks.
dst_format = choose_pixel_format(params, comp_params, work_tex, tex_type);
}
if ((dst_format == PIXEL_FMT_DXT1) && (comp_params.get_flag(cCRNCompFlagDXT1AForTransparency)))
dst_format = PIXEL_FMT_DXT1A;
else if (dst_format == PIXEL_FMT_DXT1A)
comp_params.set_flag(cCRNCompFlagDXT1AForTransparency, true);
if ((dst_format == PIXEL_FMT_ETC1) && (params.m_dst_file_type == texture_file_types::cFormatCRN))
{
console::warning("CRN file format does not support ETC1 compressed textures - converting to DXT1 instead.");
dst_format = PIXEL_FMT_DXT1;
}
if ((dst_format == PIXEL_FMT_DXT1A) && (params.m_dst_file_type == texture_file_types::cFormatCRN))
{
console::warning("CRN file format does not support DXT1A compressed textures - converting to DXT5 instead.");
dst_format = PIXEL_FMT_DXT5;
}
const bool is_normal_map = (tex_type == cTextureTypeNormalMap);
bool perceptual = comp_params.get_flag(cCRNCompFlagPerceptual);
if (is_normal_map)
{
perceptual = false;
mipmap_params.m_gamma_filtering = false;
}
if (pixel_format_helpers::is_pixel_format_non_srgb(dst_format))
{
if (perceptual)
{
console::message("Output pixel format is swizzled or not RGB, disabling perceptual color metrics");
perceptual = false;
}
}
if (pixel_format_helpers::is_normal_map(dst_format))
{
if (perceptual)
console::message("Output pixel format is intended for normal maps, disabling perceptual color metrics");
perceptual = false;
}
bool generate_mipmaps = texture_file_types::supports_mipmaps(params.m_dst_file_type);
if ( (params.m_write_mipmaps_to_multiple_files) &&
((params.m_dst_file_type != texture_file_types::cFormatCRN) && (params.m_dst_file_type != texture_file_types::cFormatDDS) && (params.m_dst_file_type != texture_file_types::cFormatKTX))
)
{
generate_mipmaps = true;
}
if (params.m_param_debugging)
{
params.print();
print_comp_params(comp_params);
print_mipmap_params(mipmap_params);
}
if (!create_texture_mipmaps(work_tex, comp_params, mipmap_params, generate_mipmaps))
return convert_error(params, "Failed creating texture mipmaps!");
bool formats_differ = work_tex.get_format() != dst_format;
if (formats_differ)
{
if (pixel_format_helpers::is_dxt1(work_tex.get_format()) && pixel_format_helpers::is_dxt1(dst_format))
formats_differ = false;
}
bool status = false;
timer t;
t.start();
if ( (params.m_dst_file_type == texture_file_types::cFormatCRN) ||
( (params.m_dst_file_type == texture_file_types::cFormatDDS) && (pixel_format_helpers::is_dxt(dst_format)) &&
//((formats_differ) || (comp_params.m_target_bitrate > 0.0f) || (comp_params.m_quality_level < cCRNMaxQualityLevel))
((comp_params.m_target_bitrate > 0.0f) || (comp_params.m_quality_level < cCRNMaxQualityLevel))
)
)
{
status = write_compressed_texture(work_tex, params, comp_params, dst_format, progress_state, perceptual, stats);
}
else
{
if ((comp_params.m_target_bitrate > 0.0f) || (comp_params.m_quality_level < cCRNMaxQualityLevel))
{
console::warning( "Target bitrate/quality level is not supported for this output file format.\n");
}
status = convert_and_write_normal_texture(work_tex, params, comp_params, dst_format, progress_state, formats_differ, perceptual, stats);
}
console::progress("");
if (progress_state.m_canceled)
{
params.m_canceled = true;
return false;
}
double total_write_time = t.get_elapsed_secs();
if (status)
{
if (params.m_param_debugging)
console::info("Work texture format: %s, desired destination format: %s", pixel_format_helpers::get_pixel_format_string(work_tex.get_format()), pixel_format_helpers::get_pixel_format_string(dst_format));
console::message("Texture successfully written in %3.3fs", total_write_time);
}
else
{
dynamic_string str;
if (work_tex.get_last_error().is_empty())
str.format("Failed writing texture to file \"%s\"", params.m_dst_filename.get_ptr());
else
str.format("Failed writing texture to file \"%s\", Reason: %s", params.m_dst_filename.get_ptr(), work_tex.get_last_error().get_ptr());
return convert_error(params, str.get_ptr());
}
if (params.m_debugging)
{
crnlib_print_mem_stats();
}
params.m_status = true;
return true;
}
} // namespace texture_conversion
} // namespace crnlib