/* Return DirectX 10 format for a texture format. */
bool detexGetDX10Parameters(uint32_t texture_format, uint32_t *dx10_format) {
const detexTextureFileInfo *info = detexLookupTextureFormatFileInfo(texture_format);
if (info == NULL) {
detexSetErrorMessage("detexGetDX10Parameters: Invalid texture format");
return false;
}
if (strncmp(info->dx_four_cc, "DX10", 4) != 0) {
detexSetErrorMessage("detexGetDX10Parameters: No DX10 format for texture format");
return false;
}
*dx10_format = info->dx10_format;
return true;
}
/* Return OpenGL Texture2D/KTX file parameters for a texture format. */
bool detexGetOpenGLParameters(uint32_t texture_format, int *gl_internal_format,
uint32_t *gl_format, uint32_t *gl_type) {
const detexTextureFileInfo *info = detexLookupTextureFormatFileInfo(texture_format);
if (info == NULL) {
detexSetErrorMessage("detexGetOpenGLParameters: Invalid texture format");
return false;
}
*gl_internal_format = info->gl_internal_format;
*gl_format = info->gl_format;
*gl_type = info->gl_type;
return true;
}
bool detexCalculateDynamicRange(uint8_t *pixel_buffer, int nu_pixels, uint32_t pixel_format,
float *range_min_out, float *range_max_out) {
if (~(pixel_format & DETEX_PIXEL_FORMAT_FLOAT_BIT)) {
detexSetErrorMessage("detexCalculateDynamicRange: Pixel buffer not in float format");
return false;
}
if (pixel_format & DETEX_PIXEL_FORMAT_16BIT_COMPONENT_BIT) {
CalculateRangeHalfFloat((uint16_t *)pixel_buffer,
nu_pixels * detexGetPixelSize(pixel_format) / 2,
range_min_out, range_max_out);
return true;
}
else if (pixel_format & DETEX_PIXEL_FORMAT_32BIT_COMPONENT_BIT) {
CalculateRangeFloat((float *)pixel_buffer,
nu_pixels * detexGetPixelSize(pixel_format) / 4,
range_min_out, range_max_out);
return true;
}
else {
detexSetErrorMessage("detexCalculateDynamicRange: Unable to handle pixel buffer format");
return false;
}
}
