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Diffstat (limited to 'modules/astcenc/image_compress_astcenc.cpp')
-rw-r--r--modules/astcenc/image_compress_astcenc.cpp175
1 files changed, 107 insertions, 68 deletions
diff --git a/modules/astcenc/image_compress_astcenc.cpp b/modules/astcenc/image_compress_astcenc.cpp
index ce10201343..1c643d780d 100644
--- a/modules/astcenc/image_compress_astcenc.cpp
+++ b/modules/astcenc/image_compress_astcenc.cpp
@@ -35,7 +35,7 @@
#include <astcenc.h>
-void _compress_astc(Image *r_img, float p_lossy_quality, Image::ASTCFormat p_format) {
+void _compress_astc(Image *r_img, Image::ASTCFormat p_format) {
uint64_t start_time = OS::get_singleton()->get_ticks_msec();
// TODO: See how to handle lossy quality.
@@ -83,65 +83,91 @@ void _compress_astc(Image *r_img, float p_lossy_quality, Image::ASTCFormat p_for
const bool mipmaps = r_img->has_mipmaps();
int width = r_img->get_width();
int height = r_img->get_height();
+ int required_width = (width % block_x) != 0 ? width + (block_x - (width % block_x)) : width;
+ int required_height = (height % block_y) != 0 ? height + (block_y - (height % block_y)) : height;
+
+ if (width != required_width || height != required_height) {
+ // Resize texture to fit block size.
+ r_img->resize(required_width, required_height);
+ width = required_width;
+ height = required_height;
+ }
print_verbose(vformat("astcenc: Encoding image size %dx%d to format %s%s.", width, height, Image::get_format_name(target_format), mipmaps ? ", with mipmaps" : ""));
// Initialize astcenc.
+ int dest_size = Image::get_image_data_size(width, height, target_format, mipmaps);
+ Vector<uint8_t> dest_data;
+ dest_data.resize(dest_size);
+ uint8_t *dest_write = dest_data.ptrw();
+
astcenc_config config;
config.block_x = block_x;
config.block_y = block_y;
config.profile = profile;
- const float quality = ASTCENC_PRE_MEDIUM;
- astcenc_error status = astcenc_config_init(profile, block_x, block_y, block_x, quality, 0, &config);
+ const float quality = ASTCENC_PRE_MEDIUM;
+ astcenc_error status = astcenc_config_init(profile, block_x, block_y, 1, quality, 0, &config);
ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
vformat("astcenc: Configuration initialization failed: %s.", astcenc_get_error_string(status)));
// Context allocation.
astcenc_context *context;
- const unsigned int thread_count = OS::get_singleton()->get_processor_count();
-
+ const unsigned int thread_count = 1; // Godot compresses multiple images each on a thread, which is more efficient for large amount of images imported.
status = astcenc_context_alloc(&config, thread_count, &context);
ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
vformat("astcenc: Context allocation failed: %s.", astcenc_get_error_string(status)));
- // Compress image.
-
Vector<uint8_t> image_data = r_img->get_data();
- uint8_t *slices = image_data.ptrw();
- astcenc_image image;
- image.dim_x = width;
- image.dim_y = height;
- image.dim_z = 1;
- image.data_type = ASTCENC_TYPE_U8;
- if (is_hdr) {
- image.data_type = ASTCENC_TYPE_F32;
- }
- image.data = reinterpret_cast<void **>(&slices);
+ int mip_count = mipmaps ? Image::get_image_required_mipmaps(width, height, target_format) : 0;
+ for (int i = 0; i < mip_count + 1; i++) {
+ int src_mip_w, src_mip_h;
+ int src_ofs = Image::get_image_mipmap_offset_and_dimensions(width, height, r_img->get_format(), i, src_mip_w, src_mip_h);
- // Compute the number of ASTC blocks in each dimension.
- unsigned int block_count_x = (width + block_x - 1) / block_x;
- unsigned int block_count_y = (height + block_y - 1) / block_y;
- size_t comp_len = block_count_x * block_count_y * 16;
+ const uint8_t *slices = &image_data.ptr()[src_ofs];
- Vector<uint8_t> compressed_data;
- compressed_data.resize(comp_len);
- compressed_data.fill(0);
+ int dst_mip_w, dst_mip_h;
+ int dst_ofs = Image::get_image_mipmap_offset_and_dimensions(width, height, target_format, i, dst_mip_w, dst_mip_h);
+ // Ensure that mip offset is a multiple of 8 (etcpak expects uint64_t pointer).
+ ERR_FAIL_COND(dst_ofs % 8 != 0);
+ uint8_t *dest_mip_write = (uint8_t *)&dest_write[dst_ofs];
- const astcenc_swizzle swizzle = {
- ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
- };
+ // Compress image.
- status = astcenc_compress_image(context, &image, &swizzle, compressed_data.ptrw(), comp_len, 0);
- ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
- vformat("astcenc: ASTC image compression failed: %s.", astcenc_get_error_string(status)));
+ astcenc_image image;
+ image.dim_x = src_mip_w;
+ image.dim_y = src_mip_h;
+ image.dim_z = 1;
+ image.data_type = ASTCENC_TYPE_U8;
+ if (is_hdr) {
+ image.data_type = ASTCENC_TYPE_F32;
+ }
+ image.data = (void **)(&slices);
+
+ // Compute the number of ASTC blocks in each dimension.
+ unsigned int block_count_x = (src_mip_w + block_x - 1) / block_x;
+ unsigned int block_count_y = (src_mip_h + block_y - 1) / block_y;
+ size_t comp_len = block_count_x * block_count_y * 16;
+
+ const astcenc_swizzle swizzle = {
+ ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
+ };
+
+ status = astcenc_compress_image(context, &image, &swizzle, dest_mip_write, comp_len, 0);
+
+ ERR_BREAK_MSG(status != ASTCENC_SUCCESS,
+ vformat("astcenc: ASTC image compression failed: %s.", astcenc_get_error_string(status)));
+ astcenc_compress_reset(context);
+ }
+
+ astcenc_context_free(context);
// Replace original image with compressed one.
- r_img->set_data(width, height, mipmaps, target_format, compressed_data);
+ r_img->set_data(width, height, mipmaps, target_format, dest_data);
print_verbose(vformat("astcenc: Encoding took %s ms.", rtos(OS::get_singleton()->get_ticks_msec() - start_time)));
}
@@ -184,68 +210,81 @@ void _decompress_astc(Image *r_img) {
astcenc_config config;
const float quality = ASTCENC_PRE_MEDIUM;
- astcenc_error status = astcenc_config_init(profile, block_x, block_y, block_x, quality, 0, &config);
+ astcenc_error status = astcenc_config_init(profile, block_x, block_y, 1, quality, 0, &config);
ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
vformat("astcenc: Configuration initialization failed: %s.", astcenc_get_error_string(status)));
// Context allocation.
astcenc_context *context = nullptr;
- const unsigned int thread_count = OS::get_singleton()->get_processor_count();
+ const unsigned int thread_count = 1;
status = astcenc_context_alloc(&config, thread_count, &context);
ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
vformat("astcenc: Context allocation failed: %s.", astcenc_get_error_string(status)));
- // Decompress image.
+ Image::Format target_format = is_hdr ? Image::FORMAT_RGBAF : Image::FORMAT_RGBA8;
const bool mipmaps = r_img->has_mipmaps();
int width = r_img->get_width();
int height = r_img->get_height();
+ int dest_size = Image::get_image_data_size(width, height, target_format, mipmaps);
+ Vector<uint8_t> dest_data;
+ dest_data.resize(dest_size);
+ uint8_t *dest_write = dest_data.ptrw();
- astcenc_image image;
- image.dim_x = width;
- image.dim_y = height;
- image.dim_z = 1;
- image.data_type = ASTCENC_TYPE_U8;
- Image::Format target_format = Image::FORMAT_RGBA8;
- if (is_hdr) {
- target_format = Image::FORMAT_RGBAF;
- image.data_type = ASTCENC_TYPE_F32;
- }
+ // Decompress image.
Vector<uint8_t> image_data = r_img->get_data();
+ int mip_count = mipmaps ? Image::get_image_required_mipmaps(width, height, target_format) : 0;
- Vector<uint8_t> new_image_data;
- new_image_data.resize(Image::get_image_data_size(width, height, target_format, false));
- new_image_data.fill(0);
- uint8_t *slices = new_image_data.ptrw();
- image.data = reinterpret_cast<void **>(&slices);
+ for (int i = 0; i < mip_count + 1; i++) {
+ int src_mip_w, src_mip_h;
+
+ int src_ofs = Image::get_image_mipmap_offset_and_dimensions(width, height, r_img->get_format(), i, src_mip_w, src_mip_h);
+ const uint8_t *src_data = &image_data.ptr()[src_ofs];
+ int src_size;
+ if (i == mip_count) {
+ src_size = image_data.size() - src_ofs;
+ } else {
+ int auxw, auxh;
+ src_size = Image::get_image_mipmap_offset_and_dimensions(width, height, r_img->get_format(), i + 1, auxw, auxh) - src_ofs;
+ }
- const astcenc_swizzle swizzle = {
- ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
- };
+ int dst_mip_w, dst_mip_h;
+ int dst_ofs = Image::get_image_mipmap_offset_and_dimensions(width, height, target_format, i, dst_mip_w, dst_mip_h);
+ // Ensure that mip offset is a multiple of 8 (etcpak expects uint64_t pointer).
+ ERR_FAIL_COND(dst_ofs % 8 != 0);
+ uint8_t *dest_mip_write = (uint8_t *)&dest_write[dst_ofs];
+
+ astcenc_image image;
+ image.dim_x = dst_mip_w;
+ image.dim_y = dst_mip_h;
+ image.dim_z = 1;
+ image.data_type = ASTCENC_TYPE_U8;
+ if (is_hdr) {
+ target_format = Image::FORMAT_RGBAF;
+ image.data_type = ASTCENC_TYPE_F32;
+ }
- status = astcenc_decompress_image(context, image_data.ptr(), image_data.size(), &image, &swizzle, 0);
- ERR_FAIL_COND_MSG(status != ASTCENC_SUCCESS,
- vformat("astcenc: ASTC decompression failed: %s.", astcenc_get_error_string(status)));
- ERR_FAIL_COND_MSG(image.dim_z > 1,
- "astcenc: ASTC decompression failed because this is a 3D texture, which is not supported.");
+ image.data = (void **)(&dest_mip_write);
- // Replace original image with compressed one.
+ const astcenc_swizzle swizzle = {
+ ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
+ };
- Image::Format image_format = Image::FORMAT_RGBA8;
- if (image.data_type == ASTCENC_TYPE_F32) {
- image_format = Image::FORMAT_RGBAF;
- } else if (image.data_type == ASTCENC_TYPE_U8) {
- image_format = Image::FORMAT_RGBA8;
- } else if (image.data_type == ASTCENC_TYPE_F16) {
- image_format = Image::FORMAT_RGBAH;
- } else {
- ERR_FAIL_MSG("astcenc: ASTC decompression failed with an unknown format.");
+ status = astcenc_decompress_image(context, src_data, src_size, &image, &swizzle, 0);
+ ERR_BREAK_MSG(status != ASTCENC_SUCCESS,
+ vformat("astcenc: ASTC decompression failed: %s.", astcenc_get_error_string(status)));
+ ERR_BREAK_MSG(image.dim_z > 1,
+ "astcenc: ASTC decompression failed because this is a 3D texture, which is not supported.");
+ astcenc_compress_reset(context);
}
+ astcenc_context_free(context);
+
+ // Replace original image with compressed one.
- r_img->set_data(image.dim_x, image.dim_y, mipmaps, image_format, new_image_data);
+ r_img->set_data(width, height, mipmaps, target_format, dest_data);
print_verbose(vformat("astcenc: Decompression took %s ms.", rtos(OS::get_singleton()->get_ticks_msec() - start_time)));
}
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