Eina_Binbuf *out,
Emile_Compressor_Type t);
+/* All the value from below enum should be the same as in Evas_Loader.h */
+typedef enum _Emile_Colorspace
+{
+ EMILE_COLORSPACE_ARGB8888,/**< ARGB 32 bits per pixel, high-byte is Alpha, accessed 1 32bit word at a time */
+ EMILE_COLORSPACE_YCBCR422P601_PL, /**< YCbCr 4:2:2 Planar, ITU.BT-601 specifications. The data pointed to is just an array of row pointer, pointing to the Y rows, then the Cb, then Cr rows */
+ EMILE_COLORSPACE_YCBCR422P709_PL, /**< YCbCr 4:2:2 Planar, ITU.BT-709 specifications. The data pointed to is just an array of row pointer, pointing to the Y rows, then the Cb, then Cr rows */
+ EMILE_COLORSPACE_RGB565_A5P, /**< 16bit rgb565 + Alpha plane at end - 5 bits of the 8 being used per alpha byte */
+ EMILE_COLORSPACE_GRY8 = 4,
+ EMILE_COLORSPACE_YCBCR422601_PL, /**< YCbCr 4:2:2, ITU.BT-601 specifications. The data pointed to is just an array of row pointer, pointing to line of Y,Cb,Y,Cr bytes */
+ EMILE_COLORSPACE_YCBCR420NV12601_PL, /**< YCbCr 4:2:0, ITU.BT-601 specification. The data pointed to is just an array of row pointer, pointing to the Y rows, then the Cb,Cr rows. */
+ EMILE_COLORSPACE_YCBCR420TM12601_PL, /**< YCbCr 4:2:0, ITU.BT-601 specification. The data pointed to is just an array of tiled row pointer, pointing to the Y rows, then the Cb,Cr rows. */
+ EMILE_COLORSPACE_AGRY88 = 8, /**< AY 8bits Alpha and 8bits Grey, accessed 1 16bits at a time */
+ EMILE_COLORSPACE_ETC1 = 9, /**< OpenGL ETC1 encoding of RGB texture (4 bit per pixel) @since 1.10 */
+ EMILE_COLORSPACE_RGB8_ETC2 = 10, /**< OpenGL GL_COMPRESSED_RGB8_ETC2 texture compression format (4 bit per pixel) @since 1.10 */
+ EMILE_COLORSPACE_RGBA8_ETC2_EAC = 11, /**< OpenGL GL_COMPRESSED_RGBA8_ETC2_EAC texture compression format, supports alpha (8 bit per pixel) @since 1.10 */
+ EMILE_COLORSPACE_ETC1_ALPHA = 12, /**< ETC1 with alpha support using two planes: ETC1 RGB and ETC1 grey for alpha @since 1.11 */
+ EMILE_COLORSPACE_RGB_S3TC_DXT1 = 13, /**< OpenGL COMPRESSED_RGB_S3TC_DXT1_EXT format with RGB only. @since 1.11 */
+ EMILE_COLORSPACE_RGBA_S3TC_DXT1 = 14, /**< OpenGL COMPRESSED_RGBA_S3TC_DXT1_EXT format with RGBA punchthrough. @since 1.11 */
+ EMILE_COLORSPACE_RGBA_S3TC_DXT2 = 15, /**< DirectDraw DXT2 format with premultiplied RGBA. Not supported by OpenGL itself. @since 1.11 */
+ EMILE_COLORSPACE_RGBA_S3TC_DXT3 = 16, /**< OpenGL COMPRESSED_RGBA_S3TC_DXT3_EXT format with RGBA. @since 1.11 */
+ EMILE_COLORSPACE_RGBA_S3TC_DXT4 = 17, /**< DirectDraw DXT4 format with premultiplied RGBA. Not supported by OpenGL itself. @since 1.11 */
+ EMILE_COLORSPACE_RGBA_S3TC_DXT5 = 18 /**< OpenGL COMPRESSED_RGBA_S3TC_DXT5_EXT format with RGBA. @since 1.11 */
+} Emile_Colorspace;
+
+typedef enum _Emile_Image_Encoding
+{
+ EMILE_IMAGE_LOSSLESS = 0,
+ EMILE_IMAGE_JPEG = 1,
+ EMILE_IMAGE_ETC1 = 2,
+ EMILE_IMAGE_ETC2_RGB = 3,
+ EMILE_IMAGE_ETC2_RGBA = 4,
+ EMILE_IMAGE_ETC1_ALPHA = 5
+} Emile_Image_Encoding;
+
+typedef enum _Emile_Image_Scale_Hint
+{
+ EMILE_IMAGE_SCALE_HINT_NONE = 0, /**< No scale hint at all */
+ EMILE_IMAGE_SCALE_HINT_DYNAMIC = 1, /**< Image is being re-scaled over time, thus turning scaling cache @b off for its data */
+ EMILE_IMAGE_SCALE_HINT_STATIC = 2 /**< Image is not being re-scaled over time, thus turning scaling cache @b on for its data */
+} Emile_Image_Scale_Hint;
+
+typedef enum _Emile_Image_Animated_Loop_Hint
+{
+ EMILE_IMAGE_ANIMATED_HINT_NONE = 0,
+ EMILE_IMAGE_ANIMATED_HINT_LOOP = 1,
+ EMILE_IMAGE_ANIMATED_HINT_PINGPONG = 2
+} Emile_Image_Animated_Loop_Hint;
+
+typedef enum _Emile_Image_Load_Error
+{
+ EMILE_IMAGE_LOAD_ERROR_NONE = 0, /**< No error on load */
+ EMILE_IMAGE_LOAD_ERROR_GENERIC = 1, /**< A non-specific error occurred */
+ EMILE_IMAGE_LOAD_ERROR_DOES_NOT_EXIST = 2, /**< File (or file path) does not exist */
+ EMILE_IMAGE_LOAD_ERROR_PERMISSION_DENIED = 3, /**< Permission denied to an existing file (or path) */
+ EMILE_IMAGE_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED = 4, /**< Allocation of resources failure prevented load */
+ EMILE_IMAGE_LOAD_ERROR_CORRUPT_FILE = 5, /**< File corrupt (but was detected as a known format) */
+ EMILE_IMAGE_LOAD_ERROR_UNKNOWN_FORMAT = 6 /**< File is not a known format */
+} Emile_Image_Load_Error; /**< Emile image load error codes one can get - see emile_load_error_str() too. */
+
+typedef struct _Emile_Image Emile_Image;
+typedef struct _Emile_Image_Property Emile_Image_Property;
+typedef struct _Emile_Image_Load_Opts Emile_Image_Load_Opts;
+typedef struct _Emile_Image_Animated Emile_Image_Animated;
+
+struct _Emile_Image_Property
+{
+ struct {
+ unsigned char l, r, t, b;
+ } borders;
+
+ const Emile_Colorspace *cspaces;
+ Emile_Colorspace cspace;
+
+ Emile_Image_Encoding encoding;
+
+ unsigned int w;
+ unsigned int h;
+ unsigned int row_stride;
+
+ unsigned char scale;
+
+ Eina_Bool rotated;
+ Eina_Bool alpha;
+ Eina_Bool premul;
+ Eina_Bool alpha_sparse;
+
+ Eina_Bool flipped;
+ Eina_Bool comp;
+};
+
+struct _Emile_Image_Animated
+{
+ Eina_List *frames;
+
+ Emile_Image_Animated_Loop_Hint loop_hint;
+
+ int frame_count;
+ int loop_count;
+ int cur_frame;
+
+ Eina_Bool animated;
+};
+
+struct _Emile_Image_Load_Opts
+{
+ struct {
+ int x, y, w, h;
+ } region;
+ struct {
+ int src_x, src_y, src_w, src_h;
+ int dst_w, dst_h;
+ int smooth;
+ Emile_Image_Scale_Hint scale_hint;
+ } scale_load;
+ double dpi;
+ unsigned int w, h;
+ unsigned int degree;
+ int scale_down_by;
+
+ Eina_Bool orientation;
+};
+
+// FIXME: Add enum for error code
+// FIXME: should set region at load time, not head time
+
+EAPI Emile_Image *emile_image_tgv_memory_open(Eina_Binbuf *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error);
+EAPI Emile_Image *emile_image_tgv_file_open(Eina_File *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error);
+
+EAPI Emile_Image *emile_image_jpeg_memory_open(Eina_Binbuf *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error);
+EAPI Emile_Image *emile_image_jpeg_file_open(Eina_File *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error);
+
+EAPI Eina_Bool emile_image_head(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error);
+EAPI Eina_Bool emile_image_data(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error);
+
+EAPI void emile_image_close(Emile_Image *source);
+
+EAPI const char *emile_load_error_str(Emile_Image *source,
+ Emile_Image_Load_Error error);
+
#ifdef __cplusplus
}
#endif /* ifdef __cplusplus */
--- /dev/null
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif /* ifdef HAVE_CONFIG_H */
+
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
+#ifdef _WIN32
+# include <winsock2.h>
+#endif /* ifdef _WIN32 */
+
+#ifdef ENABLE_LIBLZ4
+# include <lz4.h>
+#else
+# include "lz4.h"
+#endif
+
+#include "rg_etc1.h"
+#include "Emile.h"
+
+#ifdef BUILD_NEON
+#include <arm_neon.h>
+#endif
+
+#ifndef WORDS_BIGENDIAN
+/* x86 */
+#define A_VAL(p) (((uint8_t *)(p))[3])
+#define R_VAL(p) (((uint8_t *)(p))[2])
+#define G_VAL(p) (((uint8_t *)(p))[1])
+#define B_VAL(p) (((uint8_t *)(p))[0])
+#else
+/* ppc */
+#define A_VAL(p) (((uint8_t *)(p))[0])
+#define R_VAL(p) (((uint8_t *)(p))[1])
+#define G_VAL(p) (((uint8_t *)(p))[2])
+#define B_VAL(p) (((uint8_t *)(p))[3])
+#endif
+
+#define OFFSET_BLOCK_SIZE 4
+#define OFFSET_ALGORITHM 5
+#define OFFSET_OPTIONS 6
+#define OFFSET_WIDTH 8
+#define OFFSET_HEIGHT 12
+#define OFFSET_BLOCKS 16
+
+struct _Emile_Image
+{
+ Emile_Image_Load_Opts opts;
+
+ struct {
+ unsigned int width;
+ unsigned int height;
+ } size, block;
+
+ Eina_Rectangle region;
+
+ union {
+ Eina_Binbuf *bin;
+ Eina_File *f;
+ } source;
+
+ const unsigned char *source_data;
+
+ Eina_Bool (*bind)(Emile_Image *image,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error);
+ Eina_Bool (*head)(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error);
+ Eina_Bool (*data)(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error);
+ void (*close)(Emile_Image *image);
+
+ Emile_Colorspace cspace;
+
+ Eina_Bool bin_source : 1;
+
+ /* TGV option */
+ Eina_Bool unpremul : 1;
+ Eina_Bool compress : 1;
+ Eina_Bool blockless : 1;
+ Eina_Bool load_opts : 1;
+};
+
+static const unsigned char *
+_emile_image_file_source_map(Emile_Image *image, unsigned int *length)
+{
+ if (!image) return NULL;
+
+ if (image->bin_source)
+ {
+ if (length) *length = eina_binbuf_length_get(image->source.bin);
+ return eina_binbuf_string_get(image->source.bin);
+ }
+
+ if (length) *length = eina_file_size_get(image->source.f);
+ if (!image->source_data)
+ {
+ image->source_data = eina_file_map_all(image->source.f,
+ EINA_FILE_SEQUENTIAL);
+ }
+ return image->source_data;
+}
+
+static void
+_emile_image_file_source_unmap(Emile_Image *image)
+{
+ if (!(image && image->source_data)) return ;
+ eina_file_map_free(image->source.f,
+ (void*) image->source_data);
+ image->source_data = NULL;
+}
+
+static int
+roundup(int val, int rup)
+{
+ if (val >= 0 && rup > 0)
+ return (val + rup - 1) - ((val + rup - 1) % rup);
+ return 0;
+}
+
+/* TGV Handling */
+
+static const Emile_Colorspace cspaces_etc1[2] = {
+ EMILE_COLORSPACE_ETC1,
+ EMILE_COLORSPACE_ARGB8888
+};
+
+static const Emile_Colorspace cspaces_rgb8_etc2[2] = {
+ EMILE_COLORSPACE_RGB8_ETC2,
+ EMILE_COLORSPACE_ARGB8888
+};
+
+static const Emile_Colorspace cspaces_rgba8_etc2_eac[2] = {
+ EMILE_COLORSPACE_RGBA8_ETC2_EAC,
+ EMILE_COLORSPACE_ARGB8888
+};
+
+static const Emile_Colorspace cspaces_etc1_alpha[2] = {
+ EMILE_COLORSPACE_ETC1_ALPHA,
+ EMILE_COLORSPACE_ARGB8888
+};
+
+/**************************************************************
+ * The TGV file format is oriented around compression mecanism
+ * that hardware are good at decompressing. We do still provide
+ * a fully software implementation in case your hardware doesn't
+ * handle it. As OpenGL is pretty bad at handling border of
+ * texture, we do duplicate the first pixels of every border.
+ *
+ * This file format is designed to compress/decompress things
+ * in block area. Giving opportunity to store really huge file
+ * and only decompress/compress them as we need. Note that region
+ * only work with software decompression as we don't have a sane
+ * way to duplicate border to avoid artifact when scaling texture.
+ *
+ * The file format is as follow :
+ * - char magic[4]: "TGV1"
+ * - uint8_t block_size (real block size = (4 << bits[0-3], 4 << bits[4-7])
+ * - uint8_t algorithm (0 -> ETC1, 1 -> ETC2 RGB, 2 -> ETC2 RGBA, 3 -> ETC1+Alpha)
+ * - uint8_t options[2] (bitmask: 1 -> lz4, 2 for block-less, 4 -> unpremultiplied)
+ * - uint32_t width
+ * - uint32_t height
+ * - blocks[]
+ * - 0 length encoded compress size (if length == 64 * block_size => no compression)
+ * - lzma encoded etc1 block
+ *
+ * If the format is ETC1+Alpha (algo = 3), then a second image is encoded
+ * in ETC1 right after the first one, and it contains grey-scale alpha
+ * values.
+ **************************************************************/
+
+// FIXME: wondering if we should support mipmap
+// TODO: support ETC1+ETC2 images (RGB only)
+
+static Eina_Bool
+_emile_tgv_bind(Emile_Image *image,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ const unsigned char *m;
+ unsigned int length;
+
+ m = _emile_image_file_source_map(image, &length);
+ if (!m) return EINA_FALSE;
+
+ /* Fast check for file characteristic (useful when trying to guess
+ a file format without extention). */
+ if (length < 16 ||
+ strncmp((const char*) m, "TGV1", 4) != 0)
+ goto on_error;
+
+ if ((m[OFFSET_ALGORITHM] & 0xFF) > 3)
+ goto on_error;
+
+ return EINA_TRUE;
+
+ on_error:
+ *error = EMILE_IMAGE_LOAD_ERROR_UNKNOWN_FORMAT;
+ _emile_image_file_source_unmap(image);
+ return EINA_FALSE;
+}
+
+static Eina_Bool
+_emile_tgv_head(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error)
+{
+ const unsigned char *m;
+ unsigned int length;
+
+ m = _emile_image_file_source_map(image, &length);
+ if (!m) return EINA_FALSE;
+
+ switch (m[OFFSET_ALGORITHM] & 0xFF)
+ {
+ case 0:
+ prop->cspaces = cspaces_etc1;
+ prop->alpha = EINA_FALSE;
+ image->cspace = EMILE_COLORSPACE_ETC1;
+ break;
+ case 1:
+ prop->cspaces = cspaces_rgb8_etc2;
+ prop->alpha = EINA_FALSE;
+ image->cspace = EMILE_COLORSPACE_RGB8_ETC2;
+ break;
+ case 2:
+ prop->cspaces = cspaces_rgba8_etc2_eac;
+ prop->alpha = EINA_TRUE;
+ image->cspace = EMILE_COLORSPACE_RGBA8_ETC2_EAC;
+ break;
+ case 3:
+ prop->cspaces = cspaces_etc1_alpha;
+ prop->alpha = EINA_TRUE;
+ prop->premul = !!(m[OFFSET_OPTIONS] & 0x4);
+ image->unpremul = prop->premul;
+ break;
+ default:
+ *error = EMILE_IMAGE_LOAD_ERROR_CORRUPT_FILE;
+ return EINA_FALSE;
+ }
+
+ image->compress = m[OFFSET_OPTIONS] & 0x1;
+ image->blockless = (m[OFFSET_OPTIONS] & 0x2) != 0;
+
+ image->size.width = ntohl(*((unsigned int*) &(m[OFFSET_WIDTH])));
+ image->size.height = ntohl(*((unsigned int*) &(m[OFFSET_HEIGHT])));
+
+ if (image->blockless)
+ {
+ image->block.width = roundup(image->size.width + 2, 4);
+ image->block.height = roundup(image->size.height + 2, 4);
+ }
+ else
+ {
+ image->block.width = 4 << (m[OFFSET_BLOCK_SIZE] & 0x0f);
+ image->block.height = 4 << ((m[OFFSET_BLOCK_SIZE] & 0xf0) >> 4);
+ }
+
+ EINA_RECTANGLE_SET(&image->region, 0, 0,
+ image->size.width, image->size.height);
+ if (image->load_opts &&
+ (image->opts.region.w > 0 && image->opts.region.h > 0))
+ {
+ // ETC colorspace doesn't work with region for now
+ prop->cspaces = NULL;
+
+ if (!eina_rectangle_intersection(&image->region,
+ &image->opts.region))
+ {
+ *error = EMILE_IMAGE_LOAD_ERROR_GENERIC;
+ return EINA_FALSE;
+ }
+ }
+
+ prop->w = image->size.width;
+ prop->h = image->size.height;
+ prop->borders.l = 1;
+ prop->borders.t = 1;
+ prop->borders.r = roundup(prop->w + 2, 4) - prop->w - 1;
+ prop->borders.b = roundup(prop->h + 2, 4) - prop->h - 1;
+
+ return EINA_TRUE;
+}
+
+static inline unsigned int
+_tgv_length_get(const unsigned char *m,
+ unsigned int length,
+ unsigned int *offset)
+{
+ unsigned int r = 0;
+ unsigned int shift = 0;
+
+ while (*offset < length && ((*m) & 0x80))
+ {
+ r = r | (((*m) & 0x7F) << shift);
+ shift += 7;
+ m++;
+ (*offset)++;
+ }
+ if (*offset < length)
+ {
+ r = r | (((*m) & 0x7F) << shift);
+ (*offset)++;
+ }
+
+ return r;
+}
+
+static Eina_Bool
+_emile_tgv_data(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error)
+{
+ const unsigned char *m;
+ unsigned int *p = pixels;
+ unsigned char *p_etc = pixels;
+ Eina_Binbuf *buffer = NULL;
+ Eina_Rectangle master;
+ unsigned int block_length;
+ unsigned int length, offset;
+ unsigned int x, y;
+ unsigned int block_count;
+ unsigned int etc_width = 0;
+ unsigned int etc_block_size;
+ int num_planes = 1, plane, alpha_offset = 0;
+ Eina_Bool r = EINA_FALSE;
+
+ m = _emile_image_file_source_map(image, &length);
+ if (!m)
+ {
+ *error = EMILE_IMAGE_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
+ return EINA_FALSE;
+ }
+
+ offset = OFFSET_BLOCKS;
+
+ *error = EMILE_IMAGE_LOAD_ERROR_CORRUPT_FILE;
+
+ // By definition, prop{.w, .h} == region{.w, .h}
+ EINA_RECTANGLE_SET(&master,
+ image->region.x, image->region.y,
+ prop->w, prop->h);
+
+ switch (image->cspace)
+ {
+ case EMILE_COLORSPACE_ETC1:
+ case EMILE_COLORSPACE_RGB8_ETC2:
+ etc_block_size = 8;
+ break;
+ case EMILE_COLORSPACE_RGBA8_ETC2_EAC:
+ etc_block_size = 16;
+ break;
+ case EMILE_COLORSPACE_ETC1_ALPHA:
+ etc_block_size = 8;
+ num_planes = 2;
+ alpha_offset = ((prop->w + 2 + 3) / 4) * ((prop->h + 2 + 3) / 4) * 8 / sizeof(*p_etc);
+ break;
+ default: abort();
+ }
+ etc_width = ((prop->w + 2 + 3) / 4) * etc_block_size;
+
+ switch (prop->cspace)
+ {
+ case EMILE_COLORSPACE_ETC1:
+ case EMILE_COLORSPACE_RGB8_ETC2:
+ case EMILE_COLORSPACE_RGBA8_ETC2_EAC:
+ case EMILE_COLORSPACE_ETC1_ALPHA:
+ if (master.x % 4 || master.y % 4)
+ // FIXME: Should we really abort here ? Seems like a late check for me
+ abort();
+ break;
+ case EMILE_COLORSPACE_ARGB8888:
+ // Offset to take duplicated pixels into account
+ master.x += 1;
+ master.y += 1;
+ break;
+ default: abort();
+ }
+
+
+ if (prop->cspace != EMILE_COLORSPACE_ARGB8888 && prop->cspace != image->cspace)
+ {
+ if (!((prop->cspace == EMILE_COLORSPACE_RGB8_ETC2) &&
+ (image->cspace == EMILE_COLORSPACE_ETC1)))
+ {
+ *error = EMILE_IMAGE_LOAD_ERROR_GENERIC;
+ return EINA_FALSE;
+ }
+ // else: ETC2 is compatible with ETC1 and is preferred
+ }
+
+ // Allocate space for each ETC block (8 or 16 bytes per 4 * 4 pixels group)
+ block_count = image->block.width * image->block.height / (4 * 4);
+ if (image->compress)
+ buffer = eina_binbuf_manage_read_only_new_length(alloca(etc_block_size * block_count), etc_block_size * block_count);
+
+ for (plane = 0; plane < num_planes; plane++)
+ for (y = 0; y < image->size.height + 2; y += image->block.height)
+ for (x = 0; x < image->size.width + 2; x += image->block.width)
+ {
+ Eina_Rectangle current;
+ Eina_Binbuf *data_start;
+ const unsigned char *it;
+ unsigned int expand_length;
+ unsigned int i, j;
+
+ block_length = _tgv_length_get(m + offset, length, &offset);
+
+ if (block_length == 0)
+ {
+ *error = EMILE_IMAGE_LOAD_ERROR_CORRUPT_FILE;
+ return EINA_FALSE;
+ }
+
+ data_start = eina_binbuf_manage_read_only_new_length(m + offset, block_length);
+ offset += block_length;
+
+ EINA_RECTANGLE_SET(¤t, x, y,
+ image->block.width, image->block.height);
+
+ if (!eina_rectangle_intersection(¤t, &master))
+ continue;
+
+ if (image->compress)
+ {
+ if (!emile_binbuf_expand(data_start, buffer, EMILE_LZ4HC))
+ goto on_error;
+ }
+ else
+ {
+ buffer = data_start;
+ if (block_count * etc_block_size != block_length)
+ goto on_error;
+ }
+ it = eina_binbuf_string_get(buffer);
+
+ for (i = 0; i < image->block.height; i += 4)
+ for (j = 0; j < image->block.width; j += 4, it += etc_block_size)
+ {
+ Eina_Rectangle current_etc;
+ unsigned int temporary[4 * 4];
+ unsigned int offset_x, offset_y;
+ int k, l;
+
+ EINA_RECTANGLE_SET(¤t_etc, x + j, y + i, 4, 4);
+
+ if (!eina_rectangle_intersection(¤t_etc, ¤t))
+ continue;
+
+ switch (prop->cspace)
+ {
+ case EMILE_COLORSPACE_ARGB8888:
+ switch (image->cspace)
+ {
+ case EMILE_COLORSPACE_ETC1:
+ case EMILE_COLORSPACE_ETC1_ALPHA:
+ if (!rg_etc1_unpack_block(it, temporary, 0))
+ {
+ // TODO: Should we decode as RGB8_ETC2?
+ fprintf(stderr, "ETC1: Block starting at {%i, %i} is corrupted!\n", x + j, y + i);
+ continue;
+ }
+ break;
+ case EMILE_COLORSPACE_RGB8_ETC2:
+ rg_etc2_rgb8_decode_block((uint8_t *) it, temporary);
+ break;
+ case EMILE_COLORSPACE_RGBA8_ETC2_EAC:
+ rg_etc2_rgba8_decode_block((uint8_t *) it, temporary);
+ break;
+ default: abort();
+ }
+
+ offset_x = current_etc.x - x - j;
+ offset_y = current_etc.y - y - i;
+
+ if (!plane)
+ {
+#ifdef BUILD_NEON
+ if (eina_cpu_features_get() & EINA_CPU_NEON)
+ {
+ uint32_t *dst = &p[current_etc.x - 1 + (current_etc.y - 1) * master.w];
+ uint32_t *src = &temporary[offset_x + offset_y * 4];
+ for (k = 0; k < current_etc.h; k++)
+ {
+ if (current_etc.w == 4)
+ vst1q_u32(dst, vld1q_u32(src));
+ else if (current_etc.w == 3)
+ {
+ vst1_u32(dst, vld1_u32(src));
+ *(dst + 2) = *(src + 2);
+ }
+ else if (current_etc.w == 2)
+ vst1_u32(dst, vld1_u32(src));
+ else
+ *dst = *src;
+ dst += master.w;
+ src += 4;
+ }
+ }
+ else
+#endif
+ for (k = 0; k < current_etc.h; k++)
+ {
+ memcpy(&p[current_etc.x - 1 + (current_etc.y - 1 + k) * master.w],
+ &temporary[offset_x + (offset_y + k) * 4],
+ current_etc.w * sizeof (unsigned int));
+ }
+ }
+ else
+ {
+ for (k = 0; k < current_etc.h; k++)
+ for (l = 0; l < current_etc.w; l++)
+ {
+ unsigned int *rgbdata =
+ &p[current_etc.x - 1 + (current_etc.y - 1 + k) * master.w + l];
+ unsigned int *adata =
+ &temporary[offset_x + (offset_y + k) * 4 + l];
+ A_VAL(rgbdata) = G_VAL(adata);
+ }
+ }
+ break;
+ case EMILE_COLORSPACE_ETC1:
+ case EMILE_COLORSPACE_RGB8_ETC2:
+ case EMILE_COLORSPACE_RGBA8_ETC2_EAC:
+ memcpy(&p_etc[(current_etc.x / 4) * etc_block_size +
+ (current_etc.y / 4) * etc_width],
+ it, etc_block_size);
+ break;
+ case EMILE_COLORSPACE_ETC1_ALPHA:
+ memcpy(&p_etc[(current_etc.x / 4) * etc_block_size +
+ (current_etc.y / 4) * etc_width +
+ plane * alpha_offset],
+ it, etc_block_size);
+ break;
+ default:
+ abort();
+ }
+ } // bx,by inside blocks
+ } // x,y macroblocks
+
+ // TODO: Add support for more unpremultiplied modes (ETC2)
+ if (prop->cspace == EMILE_COLORSPACE_ARGB8888)
+ prop->premul = image->unpremul; // call premul if unpremul data
+
+ r = EINA_TRUE;
+
+ on_error:
+ return r;
+}
+
+static void
+_emile_tgv_close(Emile_Image *image EINA_UNUSED)
+{
+ // TGV file loader doesn't keep any data allocated around
+}
+
+/* JPEG Handling */
+static Eina_Bool
+_emile_jpeg_bind(Emile_Image *image,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ return EINA_FALSE;
+}
+
+static Eina_Bool
+_emile_jpeg_head(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error)
+{
+ return EINA_FALSE;
+}
+
+static Eina_Bool
+_emile_jpeg_data(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error)
+{
+ return EINA_FALSE;
+}
+
+static void
+_emile_jpeg_close(Emile_Image *image)
+{
+}
+
+/* Generic helper to instantiate a new Emile_Image */
+
+static Emile_Image *
+_emile_image_new(Eina_Bool (*bind) (Emile_Image *image,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error),
+ Eina_Bool (*head)(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error),
+ Eina_Bool (*data)(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error),
+ void (*close)(Emile_Image *image))
+{
+ Emile_Image *ei;
+
+ ei = calloc(1, sizeof (Emile_Image));
+ if (!ei) return NULL;
+
+ ei->bind = bind;
+ ei->head = head;
+ ei->data = data;
+ ei->close = close;
+
+ return ei;
+}
+
+static void
+_emile_image_binbuf_set(Emile_Image *ei, Eina_Binbuf *source)
+{
+ ei->source.bin = source;
+ ei->bin_source = EINA_TRUE;
+}
+
+static void
+_emile_image_file_set(Emile_Image *ei, Eina_File *source)
+{
+ ei->source.f = eina_file_dup(source);
+ ei->bin_source = EINA_FALSE;
+}
+
+static Emile_Image *
+_emile_image_bind(Emile_Image *ei,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ if (opts)
+ {
+ ei->opts = *opts;
+ ei->load_opts = 1;
+ }
+
+ *error = EMILE_IMAGE_LOAD_ERROR_NONE;
+ if (ei->bind(ei, opts, animated, error))
+ return ei;
+
+ /* File is not of that format */
+ free(ei);
+ return NULL;
+}
+
+/* Public API to manipulate Emile_Image */
+
+EAPI Emile_Image *
+emile_image_tgv_memory_open(Eina_Binbuf *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ Emile_Image *ei;
+
+ ei = _emile_image_new(_emile_tgv_bind,
+ _emile_tgv_head,
+ _emile_tgv_data,
+ _emile_tgv_close);
+ if (!ei) return NULL;
+
+ _emile_image_binbuf_set(ei, source);
+ return _emile_image_bind(ei, opts, animated, error);
+}
+
+EAPI Emile_Image *
+emile_image_tgv_file_open(Eina_File *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ Emile_Image *ei;
+
+ ei = _emile_image_new(_emile_tgv_bind,
+ _emile_tgv_head,
+ _emile_tgv_data,
+ _emile_tgv_close);
+ if (!ei) return NULL;
+
+ _emile_image_file_set(ei, source);
+ return _emile_image_bind(ei, opts, animated, error);
+}
+
+EAPI Emile_Image *
+emile_image_jpeg_memory_open(Eina_Binbuf *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ Emile_Image *ei;
+
+ ei = _emile_image_new(_emile_jpeg_bind,
+ _emile_jpeg_head,
+ _emile_jpeg_data,
+ _emile_jpeg_close);
+ if (!ei) return NULL;
+
+ _emile_image_binbuf_set(ei, source);
+ return _emile_image_bind(ei, opts, animated, error);
+}
+
+EAPI Emile_Image *
+emile_image_jpeg_file_open(Eina_File *source,
+ Emile_Image_Load_Opts *opts,
+ Emile_Image_Animated *animated,
+ Emile_Image_Load_Error *error)
+{
+ Emile_Image *ei;
+
+ ei = _emile_image_new(_emile_jpeg_bind,
+ _emile_jpeg_head,
+ _emile_jpeg_data,
+ _emile_jpeg_close);
+ if (!ei) return NULL;
+
+ _emile_image_file_set(ei, source);
+ return _emile_image_bind(ei, opts, animated, error);
+}
+
+EAPI void
+emile_image_close(Emile_Image *image)
+{
+ if (!image) return ;
+
+ _emile_image_file_source_unmap(image);
+ if (!image->bin_source)
+ eina_file_close(image->source.f);
+ image->close(image);
+ free(image);
+}
+
+EAPI Eina_Bool
+emile_image_head(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ Emile_Image_Load_Error *error)
+{
+ if (!image) return EINA_FALSE;
+
+ *error = EMILE_IMAGE_LOAD_ERROR_NONE;
+ return image->head(image, prop, property_size, error);
+}
+
+EAPI Eina_Bool
+emile_image_data(Emile_Image *image,
+ Emile_Image_Property *prop,
+ unsigned int property_size,
+ void *pixels,
+ Emile_Image_Load_Error *error)
+{
+ if (!image) return EINA_FALSE;
+
+ *error = EMILE_IMAGE_LOAD_ERROR_NONE;
+ return image->data(image, prop, property_size, pixels, error);
+}
+
+EAPI const char *
+emile_load_error_str(Emile_Image *source EINA_UNUSED,
+ Emile_Image_Load_Error error)
+{
+ switch (error)
+ {
+ case EMILE_IMAGE_LOAD_ERROR_NONE:
+ return "No error";
+ case EMILE_IMAGE_LOAD_ERROR_GENERIC:
+ return "Generic error encountered while loading image.";
+ case EMILE_IMAGE_LOAD_ERROR_DOES_NOT_EXIST:
+ return "File does not exist.";
+ case EMILE_IMAGE_LOAD_ERROR_PERMISSION_DENIED:
+ return "Permission to open file denied.";
+ case EMILE_IMAGE_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED:
+ return "Not enough memory to open file.";
+ case EMILE_IMAGE_LOAD_ERROR_CORRUPT_FILE:
+ return "File is corrupted.";
+ case EMILE_IMAGE_LOAD_ERROR_UNKNOWN_FORMAT:
+ return "Unexpected file format.";
+ }
+ return NULL;
+}
projects / platform / upstream / efl.git / commitdiff