AntonioND/nitro-engine
1
Fork 0
mirror of https://github.com/AntonioND/nitro-engine.git synced 2025-06-18 16:45:33 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

library: Add helper to load textures in GRF format

Browse Source
This commit is contained in:
Antonio Niño Díaz 2024-01-25 02:05:52 +00:00
parent fb503d5972
commit 640d2441f6
2 changed files with 103 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
include/NETexture.h
View File

@ -115,6 +115,18 @@ int NE_MaterialTex4x4LoadFAT(NE_Material *tex, int sizeX, int sizeY,
NE_TextureFlags flags, const char *path02,
const char *path1);
/// Loads a texture in any format from a GRF file to a material and palette.
///
/// The size and format are obtained from the GRF header.
///
/// @param tex Material.
/// @param pal Palette. If the format is 16 bit, nothing will be loaded here.
/// @param flags Parameters of the texture.
/// @param path Path of the GRF file.
/// @return It returns 1 on success, 0 on error.
int NE_MaterialTexLoadGRF(NE_Material *tex, NE_Palette *pal,
NE_TextureFlags flags, const char *path);
/// Loads a texture from RAM and assigns it to a material object.
///
/// Textures with width that isn't a power of two need to be resized manually,

91
source/NETexture.c
View File

@ -175,6 +175,97 @@ void NE_MaterialColorDelete(NE_Material *tex)
tex->color = NE_White;
}
int NE_MaterialTexLoadGRF(NE_Material *tex, NE_Palette *pal,
NE_TextureFlags flags, const char *path)
{
NE_AssertPointer(tex, "NULL material pointer");
NE_AssertPointer(path, "NULL path pointer");
int ret = 0;
void *gfxDst = NULL;
void *palDst = NULL;
GRFHeader header = { 0 };
GRFError err = grfLoadPath(path, &header, &gfxDst, NULL, &palDst, NULL, NULL);
if (err != GRF_NO_ERROR)
{
NE_DebugPrint("Couldn't load GRF file: %d", err);
goto cleanup;
}
if (gfxDst == NULL)
{
NE_DebugPrint("No graphics found in GRF file");
goto cleanup;
}
NE_TextureFormat fmt;
switch (header.gfxAttr)
{
case GRF_TEXFMT_A5I3:
fmt = NE_A5PAL8;
break;
case GRF_TEXFMT_A3I5:
fmt = NE_A3PAL32;
break;
case GRF_TEXFMT_4x4:
fmt = NE_TEX4X4;
break;
case 16:
fmt = NE_A1RGB5;
break;
case 8:
fmt = NE_PAL256;
break;
case 4:
fmt = NE_PAL16;
break;
case 2:
fmt = NE_PAL4;
break;
default:
NE_DebugPrint("Invalid format in GRF file");
goto cleanup;
}
if (NE_MaterialTexLoad(tex, fmt, header.gfxWidth, header.gfxHeight,
flags, gfxDst) == 0)
{
NE_DebugPrint("Failed to load GRF texture");
goto cleanup;
}
// If there is no palette to be loaded there is nothing else to do
if (palDst == NULL)
{
ret = 1; // Success
goto cleanup;
}
// Okay, there is a palette to load. Make sure that the user has provided a
// palette object.
if (pal == NULL)
{
NE_DebugPrint("GRF with a palette, but no palette object provided");
goto cleanup;
}
if (NE_PaletteLoadSize(pal, palDst, header.palAttr * 2, fmt) == 0)
{
NE_DebugPrint("Failed to load GRF palette");
goto cleanup;
}
NE_MaterialSetPalette(tex, pal);
ret = 1; // Success
cleanup:
free(gfxDst);
free(palDst);
return ret;
}
int NE_MaterialTexLoadFAT(NE_Material *tex, NE_TextureFormat fmt,
int sizeX, int sizeY, NE_TextureFlags flags,
const char *path)