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Merge pull request #3 from mallgrab/heap_png

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Allocate JPEG and PNG files by using the hunk.
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Ian 2022-04-20 18:28:25 -04:00 committed by GitHub
commit 96443917c7
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 8 deletions
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37
source/psp/video_hardware_images.cpp
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@ -67,9 +67,9 @@ byte *LoadJPG (FILE *fin, int matchwidth, int matchheight)
Con_Printf("JPG: Allocating data\n");
data = static_cast<byte*>(malloc (cinfo.image_width * cinfo.image_height * 4));
data = static_cast<byte*>(Hunk_Alloc(cinfo.image_width * cinfo.image_height * 4));
row_stride = cinfo.output_width * cinfo.output_components;
scanline = static_cast<byte*>(malloc (row_stride));
scanline = static_cast<byte*>(Hunk_Alloc(row_stride));
Con_Printf("JPG: done allocating data\n");
@ -111,7 +111,6 @@ byte *LoadJPG (FILE *fin, int matchwidth, int matchheight)
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
free (scanline);
fclose (fin);
return data;
@ -715,6 +714,19 @@ static void PNG_IO_user_flush_data (png_structp png_ptr)
LoadPNG
=============
*/
void* Hunk_AllocPNG(png_struct* tmp, unsigned int num_bytes)
{
void* ptr = Hunk_Alloc(num_bytes);
return ptr;
}
// Libpng requires a function for freeing memory, hunk gets free'd later so keep this empty.
void Hunk_FreePNG(png_struct* tmp, void* ptr)
{
return;
}
byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
{
int y, width, height, bitdepth, colortype;
@ -733,7 +745,7 @@ byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
return NULL;
}
if (!(png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL)))
if (!(png_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL, NULL, Hunk_AllocPNG, Hunk_FreePNG)))
{
fclose (fin);
return NULL;
@ -811,8 +823,8 @@ byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
return NULL;
}
data = static_cast<byte*>(malloc (height * rowbytes));
rowpointers = static_cast<byte**>(malloc (height * sizeof(*rowpointers)));
data = static_cast<byte*>(Hunk_Alloc(height * rowbytes));
rowpointers = static_cast<byte**>(Hunk_Alloc(height * sizeof(*rowpointers)));
for (y=0 ; y<height ; y++)
rowpointers[y] = data + y * rowbytes;
@ -823,7 +835,6 @@ byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
png_read_image (png_ptr, rowpointers);
png_read_end (png_ptr, NULL);
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
free (rowpointers);
fclose (fin);
return data;
@ -1060,7 +1071,11 @@ int loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean
{
int texture_index;
byte *data;
int hunk_start = Hunk_LowMark();
data = loadimagepixels (filename, complain, matchwidth, matchheight);
int hunk_stop = Hunk_LowMark();
if(!data)
{
return 0;
@ -1076,6 +1091,12 @@ int loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean
{
texture_index = GL_LoadImages (filename, image_width, image_height, data, qtrue, filter, 0, 4);
}
free(data);
// Only free the hunk if it was used.
if (hunk_start != hunk_stop)
Hunk_FreeToLowMark(hunk_start);
else
free(data);
return texture_index;
}