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fix paletted textures

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This commit is contained in:
Chris Danford
2004-01-24 22:18:12 +00:00
parent 2d01f971e2
commit b3447701b2
1 changed files with 30 additions and 28 deletions
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stepmania/src/RageDisplay_OGL.cpp
+30 -28
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@@ -1257,34 +1257,6 @@ unsigned RageDisplay_OGL::CreateTexture(
bool FreeImg;
PixelFormat imgpixfmt = GetImgPixelFormat( img, FreeImg, img->w, img->h );
if(pixfmt == FMT_PAL)
{
/* The image is paletted. Let's try to set up a paletted texture. */
GLubyte palette[256*4];
memset(palette, 0, sizeof(palette));
int p = 0;
/* Copy the palette to the simple, unpacked data OGL expects. If
* we're color keyed, change it over as we go. */
for(int i = 0; i < img->format->palette->ncolors; ++i)
{
palette[p++] = img->format->palette->colors[i].r;
palette[p++] = img->format->palette->colors[i].g;
palette[p++] = img->format->palette->colors[i].b;
if(img->flags & SDL_SRCCOLORKEY && i == int(img->format->colorkey))
palette[p++] = 0;
else
palette[p++] = img->format->palette->colors[i].unused;
}
/* Set the palette. */
GLExt::glColorTableEXT(GL_TEXTURE_2D, GL_RGBA8, 256, GL_RGBA, GL_UNSIGNED_BYTE, palette);
GLint RealFormat = 0;
GLExt::glGetColorTableParameterivEXT(GL_TEXTURE_2D, GL_COLOR_TABLE_FORMAT, &RealFormat);
ASSERT( RealFormat == GL_RGBA8); /* This is a case I don't expect to happen. */
}
GLenum glTexFormat = GL_PIXFMT_INFO[pixfmt].internalfmt;
GLenum glImageFormat = GL_PIXFMT_INFO[imgpixfmt].format;
GLenum glImageType = GL_PIXFMT_INFO[imgpixfmt].type;
@@ -1333,6 +1305,36 @@ unsigned RageDisplay_OGL::CreateTexture(
glPixelStorei(GL_UNPACK_ROW_LENGTH, img->pitch / img->format->BytesPerPixel);
if(pixfmt == FMT_PAL)
{
/* The image is paletted. Let's try to set up a paletted texture. */
GLubyte palette[256*4];
memset(palette, 0, sizeof(palette));
int p = 0;
/* Copy the palette to the simple, unpacked data OGL expects. If
* we're color keyed, change it over as we go. */
for(int i = 0; i < img->format->palette->ncolors; ++i)
{
palette[p++] = img->format->palette->colors[i].r;
palette[p++] = img->format->palette->colors[i].g;
palette[p++] = img->format->palette->colors[i].b;
if(img->flags & SDL_SRCCOLORKEY && i == int(img->format->colorkey))
palette[p++] = 0;
else
palette[p++] = img->format->palette->colors[i].unused;
}
/* Set the palette. */
GLExt::glColorTableEXT(GL_TEXTURE_2D, GL_RGBA8, 256, GL_RGBA, GL_UNSIGNED_BYTE, palette);
GLint RealFormat = 0;
GLExt::glGetColorTableParameterivEXT(GL_TEXTURE_2D, GL_COLOR_TABLE_FORMAT, &RealFormat);
ASSERT( RealFormat == GL_RGBA8); /* This is a case I don't expect to happen. */
}
FlushGLErrors();
if( bGenerateMipMaps )