X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=src%2Fglyphs-eimage.c;h=c4daa12e2c00035f216a47eebcc2aeb4f8c96afb;hb=761f92c159f8327ecf570ab8e9a4b27cd5e35732;hp=6b80c82f977c15a38d0d54f49c4d57ff568a9ec6;hpb=f3ec20f455f3f1212d2c5ee4cadc984330da9c38;p=chise%2Fxemacs-chise.git.1 diff --git a/src/glyphs-eimage.c b/src/glyphs-eimage.c index 6b80c82..c4daa12 100644 --- a/src/glyphs-eimage.c +++ b/src/glyphs-eimage.c @@ -49,14 +49,15 @@ Boston, MA 02111-1307, USA. */ #include "lstream.h" #include "console.h" #include "device.h" -#include "faces.h" #include "glyphs.h" #include "objects.h" #include "buffer.h" #include "frame.h" +#include "insdel.h" #include "opaque.h" +#include "imgproc.h" #include "sysfile.h" #ifdef HAVE_PNG @@ -74,6 +75,16 @@ extern "C" { #include "file-coding.h" #endif +#if INTBITS == 32 +# define FOUR_BYTE_TYPE unsigned int +#elif LONGBITS == 32 +# define FOUR_BYTE_TYPE unsigned long +#elif SHORTBITS == 32 +# define FOUR_BYTE_TYPE unsigned short +#else +#error What kind of strange-ass system are we running on? +#endif + #ifdef HAVE_TIFF DEFINE_IMAGE_INSTANTIATOR_FORMAT (tiff); Lisp_Object Qtiff; @@ -407,7 +418,7 @@ jpeg_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, { /* we're relying on the jpeg driver to do any other conversions, or signal an error if the conversion isn't supported. */ - cinfo.out_color_space = JCS_RGB; + cinfo.out_color_space = JCS_RGB; } /* Step 5: Start decompressor */ @@ -453,7 +464,7 @@ jpeg_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, for (i = 0; i < cinfo.output_width; i++) { int clr; - if (jpeg_gray) + if (jpeg_gray) { unsigned char val; #if (BITS_IN_JSAMPLE == 8) @@ -480,10 +491,10 @@ jpeg_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, /* Step 6.5: Create the pixmap and set up the image instance */ /* now instantiate */ - MAYBE_DEVMETH (XDEVICE (ii->device), + MAYBE_DEVMETH (XDEVICE (ii->device), init_image_instance_from_eimage, - (ii, cinfo.output_width, cinfo.output_height, - unwind.eimage, dest_mask, + (ii, cinfo.output_width, cinfo.output_height, + unwind.eimage, dest_mask, instantiator, domain)); /* Step 7: Finish decompression */ @@ -505,7 +516,7 @@ jpeg_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, * GIF * **********************************************************************/ -#include "gifrlib.h" +#include static void gif_validate (Lisp_Object instantiator) @@ -564,9 +575,9 @@ static size_t gif_read_from_memory(GifByteType *buf, size_t size, VoidPtr data) { gif_memory_storage *mem = (gif_memory_storage*)data; - + if (size > (mem->len - mem->index)) - return (size_t) -1; + return -1; memcpy(buf, mem->bytes + mem->index, size); mem->index = mem->index + size; return size; @@ -611,20 +622,20 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, Extcount len; int height = 0; int width = 0; - + xzero (unwind); record_unwind_protect (gif_instantiate_unwind, make_opaque_ptr (&unwind)); - + /* 1. Now decode the data. */ - + { Lisp_Object data = find_keyword_in_vector (instantiator, Q_data); - + assert (!NILP (data)); - + if (!(unwind.giffile = GifSetup())) signal_image_error ("Insufficent memory to instantiate GIF image", instantiator); - + /* set up error facilities */ if (setjmp(gif_err.setjmp_buffer)) { @@ -635,7 +646,7 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, signal_image_error_2 ("GIF decoding error", errstring, instantiator); } GifSetErrorFunc(unwind.giffile, (Gif_error_func)gif_error_func, (VoidPtr)&gif_err); - + GET_STRING_BINARY_DATA_ALLOCA (data, bytes, len); mem_struct.bytes = bytes; mem_struct.len = len; @@ -643,14 +654,14 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, GifSetReadFunc(unwind.giffile, gif_read_from_memory, (VoidPtr)&mem_struct); GifSetCloseFunc(unwind.giffile, gif_memory_close, (VoidPtr)&mem_struct); DGifInitRead(unwind.giffile); - + /* Then slurp the image into memory, decoding along the way. The result is the image in a simple one-byte-per-pixel format (#### the GIF routines only support 8-bit GIFs, it appears). */ DGifSlurp (unwind.giffile); } - + /* 3. Now create the EImage */ { ColorMapObject *cmo = unwind.giffile->SColorMap; @@ -660,15 +671,15 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, 0, 8, 16, ..., 4, 12, 20, ..., 2, 6, 10, ..., 1, 3, 5, ... */ static int InterlacedOffset[] = { 0, 4, 2, 1 }; static int InterlacedJumps[] = { 8, 8, 4, 2 }; - + height = unwind.giffile->SHeight; width = unwind.giffile->SWidth; unwind.eimage = (unsigned char*) xmalloc (width * height * 3); if (!unwind.eimage) signal_image_error("Unable to allocate enough memory for image", instantiator); - + /* write the data in EImage format (8bit RGB triples) */ - + /* Note: We just use the first image in the file and ignore the rest. We check here that that image covers the full "screen" size. I don't know whether that's always the case. @@ -679,19 +690,15 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, || unwind.giffile->SavedImages[0].ImageDesc.Top != 0) signal_image_error ("First image in GIF file is not full size", instantiator); - + interlace = unwind.giffile->SavedImages[0].ImageDesc.Interlace; pass = 0; row = interlace ? InterlacedOffset[pass] : 0; eip = unwind.eimage; for (i = 0; i < height; i++) { - if (interlace) - if (row >= height) { - row = InterlacedOffset[++pass]; - while (row >= height) - row = InterlacedOffset[++pass]; - } + if (interlace && row >= height) + row = InterlacedOffset[++pass]; eip = unwind.eimage + (row * width * 3); for (j = 0; j < width; j++) { @@ -704,11 +711,11 @@ gif_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, } } /* now instantiate */ - MAYBE_DEVMETH (XDEVICE (ii->device), + MAYBE_DEVMETH (XDEVICE (ii->device), init_image_instance_from_eimage, - (ii, width, height, unwind.eimage, dest_mask, + (ii, width, height, unwind.eimage, dest_mask, instantiator, domain)); - + unbind_to (speccount, Qnil); } @@ -766,7 +773,7 @@ struct png_error_struct /* jh 98/03/12 - #### AARRRGH! libpng includes jmp_buf inside its own structure, and there are cases where the size can be different from - between inside the library, and inside the code! To do an end run + between inside the libarary, and inside the code! To do an end run around this, use our own error functions, and don't rely on things passed in the png_ptr to them. This is an ugly hack and must go away when the lisp engine is threaded! */ @@ -805,8 +812,6 @@ png_instantiate_unwind (Lisp_Object unwind_obj) if (data->instream) fclose (data->instream); - if (data->eimage) xfree(data->eimage); - return Qnil; } @@ -836,7 +841,7 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, png_destroy_read_struct (&png_ptr, (png_infopp)NULL, (png_infopp)NULL); signal_image_error ("Error obtaining memory for png_read", instantiator); } - + xzero (unwind); unwind.png_ptr = png_ptr; unwind.info_ptr = info_ptr; @@ -851,7 +856,7 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, and is no longer usable for previous versions. jh */ - /* Set the jmp_buf return context for png_error ... if this returns !0, then + /* Set the jmp_buf reurn context for png_error ... if this returns !0, then we ran into a problem somewhere, and need to clean up after ourselves. */ if (setjmp (png_err_stct.setjmp_buffer)) { @@ -891,51 +896,15 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, /* libpng expects that the image buffer passed in contains a picture to draw on top of if the png has any transparencies. This could be a good place to pass that in... */ - + row_pointers = xnew_array (png_byte *, height); for (y = 0; y < height; y++) row_pointers[y] = unwind.eimage + (width * 3 * y); - { - /* if the png specifies a background chunk, go ahead and - use it, else use what we can get from the default face. */ - png_color_16 my_background, *image_background; - Lisp_Object bkgd = Qnil; - - my_background.red = 0x7fff; - my_background.green = 0x7fff; - my_background.blue = 0x7fff; - bkgd = FACE_BACKGROUND (Vdefault_face, domain); - if (!COLOR_INSTANCEP (bkgd)) - { - warn_when_safe (Qpng, Qinfo, "Couldn't get background color!"); - } - else - { - struct Lisp_Color_Instance *c; - Lisp_Object rgblist; - - c = XCOLOR_INSTANCE (bkgd); - rgblist = MAYBE_LISP_DEVMETH (XDEVICE (c->device), - color_instance_rgb_components, - (c)); - my_background.red = XINT (XCAR (rgblist)); - my_background.green = XINT (XCAR (XCDR (rgblist))); - my_background.blue = XINT (XCAR (XCDR (XCDR (rgblist)))); - } - - if (png_get_bKGD (png_ptr, info_ptr, &image_background)) - png_set_background (png_ptr, image_background, - PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); - else - png_set_background (png_ptr, &my_background, - PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); - } - /* Now that we're using EImage, ask for 8bit RGB triples for any type of image*/ - /* convert palette images to full RGB */ + /* convert palatte images to full RGB */ if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) png_set_expand (png_ptr); /* send grayscale images to RGB too */ @@ -945,6 +914,12 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, /* we can't handle alpha values */ if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) png_set_strip_alpha (png_ptr); + /* rip out any transparancy layers/colors */ + if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS)) + { + png_set_expand (png_ptr); + png_set_strip_alpha (png_ptr); + } /* tell libpng to strip 16 bit depth files down to 8 bits */ if (info_ptr->bit_depth == 16) png_set_strip_16 (png_ptr); @@ -957,9 +932,28 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, png_set_packing (png_ptr); } +#if 1 /* tests? or permanent? */ + { + /* if the png specifies a background chunk, go ahead and + use it */ + png_color_16 my_background, *image_background; + + /* ### how do I get the background of the current frame? */ + my_background.red = 0x7fff; + my_background.green = 0x7fff; + my_background.blue = 0x7fff; + + if (png_get_bKGD (png_ptr, info_ptr, &image_background)) + png_set_background (png_ptr, image_background, + PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); + else + png_set_background (png_ptr, &my_background, + PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); + } +#endif png_read_image (png_ptr, row_pointers); png_read_end (png_ptr, info_ptr); - + #ifdef PNG_SHOW_COMMENTS /* #### * I turn this off by default now, because the !%^@#!% comments @@ -988,9 +982,9 @@ png_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, } /* now instantiate */ - MAYBE_DEVMETH (XDEVICE (ii->device), + MAYBE_DEVMETH (XDEVICE (ii->device), init_image_instance_from_eimage, - (ii, width, height, unwind.eimage, dest_mask, + (ii, width, height, unwind.eimage, dest_mask, instantiator, domain)); /* This will clean up everything else. */ @@ -1094,7 +1088,7 @@ static toff_t tiff_memory_seek(thandle_t data, toff_t off, int whence) if ((newidx > mem->len) || (newidx < 0)) return -1; - + mem->index = newidx; return newidx; } @@ -1194,7 +1188,7 @@ tiff_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, xzero (unwind); record_unwind_protect (tiff_instantiate_unwind, make_opaque_ptr (&unwind)); - + /* set up error facilities */ if (setjmp (tiff_err_data.setjmp_buffer)) { @@ -1236,7 +1230,7 @@ tiff_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, unwind.eimage = (unsigned char *) xmalloc (width * height * 3); /* ### This is little more than proof-of-concept/function testing. - It needs to be reimplemented via scanline reads for both memory + It needs to be reimplimented via scanline reads for both memory compactness. */ raster = (uint32*) _TIFFmalloc (width * height * sizeof (uint32)); if (raster != NULL) @@ -1268,9 +1262,9 @@ tiff_instantiate (Lisp_Object image_instance, Lisp_Object instantiator, } /* now instantiate */ - MAYBE_DEVMETH (XDEVICE (ii->device), + MAYBE_DEVMETH (XDEVICE (ii->device), init_image_instance_from_eimage, - (ii, width, height, unwind.eimage, dest_mask, + (ii, width, height, unwind.eimage, dest_mask, instantiator, domain)); unbind_to (speccount, Qnil);