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Fixed GLES2 back-end on Big Endian Platform (see #5093)

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Sylvain 2021-12-17 13:15:39 +01:00
parent 61107494a1
commit 3a69828e87
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GPG Key ID: 5F87E02E5BC0939E
1 changed files with 26 additions and 0 deletions
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26
src/render/opengles2/SDL_render_gles2.c
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@ -1486,6 +1486,9 @@ static int
GLES2_TexSubImage2D(GLES2_RenderData *data, GLenum target, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels, GLint pitch, GLint bpp) GLES2_TexSubImage2D(GLES2_RenderData *data, GLenum target, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels, GLint pitch, GLint bpp)
{ {
Uint8 *blob = NULL; Uint8 *blob = NULL;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
Uint32 *blob2 = NULL;
#endif
Uint8 *src; Uint8 *src;
int src_pitch; int src_pitch;
int y; int y;
@ -1512,10 +1515,33 @@ GLES2_TexSubImage2D(GLES2_RenderData *data, GLenum target, GLint xoffset, GLint
src = blob; src = blob;
} }
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
{
int i;
Uint32 *src32 = (Uint32 *)src;
blob2 = (Uint32 *)SDL_malloc(src_pitch * height);
if (!blob2) {
if (blob) {
SDL_free(blob);
}
return SDL_OutOfMemory();
}
for (i = 0; i < (src_pitch * height) / 4; i++) {
blob2[i] = SDL_Swap32(src32[i]);
}
src = (Uint8 *) blob2;
}
#endif
data->glTexSubImage2D(target, 0, xoffset, yoffset, width, height, format, type, src); data->glTexSubImage2D(target, 0, xoffset, yoffset, width, height, format, type, src);
if (blob) { if (blob) {
SDL_free(blob); SDL_free(blob);
} }
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
if (blob2) {
SDL_free(blob2);
}
#endif
return 0; return 0;
} }